Exhibit 4.4.1

                       INDIANAPOLIS POWER & LIGHT COMPANY

                                       TO

                        AMERICAN NATIONAL BANK AND TRUST
                               COMPANY OF CHICAGO

                                     TRUSTEE



                          THIRD SUPPLEMENTAL INDENTURE


                            Dated as of April 1, 1949

                       Establishing First Mortgage Bonds,
                               3% Series, Due 1974


<PAGE>

                                  TABLE OF CONTENTS*

                                          OF

                             THIRD SUPPLEMENTAL INDENTURE

                                          OF

                          INDIANAPOLIS POWER & LIGHT COMPANY


         PAGE

         Parties...............................................................1
         Recitals..............................................................1
                  Description of bond issue....................................1

Sec. 1  Granting clauses.......................................................3
                  Part I     Real Property in the County of Marion,
                                State of Indiana...............................4
                  Part II    Electric Distributing Systems.....................7
                  Part III   Steam and Hot Water Distributing Systems..........7
                  Part IV    Indeterminate Permits and Franchises..............8
                  Part V     Other Property....................................8
         General and after-acquired property...................................9

Sec. 2  Designation of fourth series of bonds as "3% Series,
             Due 1974" and kinds and denominations thereof.....................9

        Designation of American National Bank and Trust Company
            of Chicago as paying agent........................................10
        General Redemption Prices of bonds of 3% Series,
            Due 1974..........................................................10
        Special Redemption Prices of bonds of 3% Series,
            Due 1974..........................................................11
        Procedure for exchanges of bonds......................................12
        Registration and transfer of bonds....................................13
        Bonds of 3% Series, Due 1974, limited to $8,000,000...................13

Sec. 3  Form of coupon bonds..................................................13

        Form of October coupon................................................18

        Form of April coupon..................................................18

        Form of fully registered bond.........................................19

        Form of Trustee's certificate on all bonds............................24

Sec. 4  Temporary bonds.......................................................24

Sec. 5  Sinking Fund provided for Bonds of 3% Series, Due 1974................24

Sec. 6  Annual payments for Maintenance and Improvement Fund..................26

Sec. 7  Compliance with Section 47 of Original Mortgage with
             Respect to dividend restrictions.................................26

Sec. 8  Amendment to Section 1 of Original Mortgage...........................26

Sec. 9  Amendment to Section 2 of Original Mortgage...........................26

Sec. 10 Amendments to Section 30 of Original Mortgage.........................27

Sec. 11 Amendment to Section 53 of Original Mortgage..........................27

Sec. 12 Amendment to Section 38 of Original Mortgage..........................27

Sec. 13 Amendment to Section 65 of Original Mortgage..........................28

Sec. 14 Amendment to Section 85 of Original Mortgage..........................28

Sec. 15 Amendment to Sections 97 and 98 of Original Mortgage..................28

Sec. 16 Amendment to Section 124 of Original Mortgage.........................28

Sec. 17 Acceptance of trusts by Trustee and conditions of acceptance..........29

Sec. 18 Successors and assigns................................................29

Sec. 19 Limitation of rights hereunder........................................29

Sec. 20 Terms, provisions and conditions of Original Mortgage
              applicable to bonds of 3% Series, Due 1974......................29

Sec. 21 Execution in counterparts.............................................30
                  Testimonium.................................................30
                  Signatures and seals........................................30
                  Acknowledgements............................................31

*    Table of  Contents  is not part of the  Third  Supplemental  Indenture  and
     should not be  considered  as such.  It is  included  only for  purposes of
     convenient reference.
<PAGE>

     THIS  THIRD  SUPPLEMENTAL  INDENTURE,  dated as of April 1,  1949,  between
INDIANAPOLIS  POWER & LIGHT  COMPANY,  a  corporation  of the State of  Indiana,
hereinafter  sometimes  called  the  "Company",  party of the  first  part,  and
AMERICAN  NATIONAL  BANK AND  TRUST  COMPANY  OF  CHICAGO,  a  national  banking
association,  hereinafter  sometimes  called the "Trustee",  party of the second
part;

     WHEREAS, the Company by a Mortgage and Deed of Trust (hereinafter sometimes
called  the  "Original  Mortgage"  when  referred  to as  existing  prior to any
supplement  thereto,  and the  "Mortgage"  when referred to as now or heretofore
supplemented)  dated as of May 1, 1940, made to said American  National Bank and
Trust Company of Chicago,  as Trustee, to secure the payment of the bonds issued
from time to time under the  Mortgage  for the  purposes  of and  subject to the
limitations  specified in the  Mortgage,  and to secure the  performance  of the
covenants  therein  contained,  conveyed to the Trustee  thereunder upon certain
trusts,  terms and  conditions,  and with and  subject to certain  provisos  and
covenants  therein  contained,  all  and  singular  the  property,   rights  and
franchises which the Company then owned or should thereafter acquire,  excepting
the property  expressly  excepted by the terms of the  Original  Mortgage or any
indenture  supplemental  thereto, to which Original Mortgage reference is hereby
made for greater certainty; and

     WHEREAS,  the company has  heretofore  executed and delivered and there are
now issued and  outstanding  under the Mortgage,  bonds of a series entitled and
designated  "First  Mortgage  Bonds, 3 1/4% Series,  due 1970", in the aggregate
principal amount of $32,000,000; and

     WHEREAS,  Section 8 of the Original  Mortgage  provides  that the form each
series of bonds  (other  than the  aforesaid  3 1/4%  Series  due  1970)  issued
thereunder and of the coupons to be attached to the coupon bonds of such series,
shall  be  established  by  an  indenture  supplemental  thereto  authorized  by
resolution  of the Board of Directors of the Company,  and that the form of each
series, as established by the Board of Directors,  shall specify the descriptive
title of the bonds and various  other terms  thereof,  and may also contain such
other  provisions as the Board of Directors may, in its discretion,  cause to be
inserted therein  expressing or referring to the terms and conditions upon which
such bonds are to be issued  and  secured  under the  Original  Mortgage  or any
indenture supplemental thereto; and

     WHEREAS, the Company has heretofore executed and delivered to the Trustee a
First  Supplemental  Indenture,  dated  as of May 1,  1942,  providing  for  the
creation, establishment,  execution, authentication,  delivery and issuance of a
second  series of First  Mortgage  Bonds,  unlimited as to amount,  to be issued
under and  secured  by the  Mortgage,  and  entitled  and  designated  as "First
Mortgage  Bonds, 3% Series,  due 1970," and the Company has heretofore  executed
and  delivered  and there  are now  issued  and  outstanding  thereunder,  First
Mortgage  Bonds, 3% Series,  due 1970,  dated May 1, 1942 and maturing on May 1,
1970, in the aggregate principal amount of $2,000,000; and

     WHEREAS, the Company has heretofore executed and delivered to the Trustee a
Second Supplemental  Indenture,  dated as of February 1, 1948, providing for the
creation, establishment,  execution, authentication,  delivery and issuance of a
third series of First Mortgage Bonds, unlimited as to amount, to be issued under
and secured by the  Mortgage,  and entitled and  designated  as "First  Mortgage
Bonds,  3 1/8% Series,  Due 1973," and the Company has  heretofore  executed and
delivered and there are now issued and  outstanding  thereunder,  First Mortgage
Bonds, 3 1/8% Series,  Due 1973, dated February 1, 1948 and maturing on February
1, 1973, in the aggregate principal amount of $8,000,000; and

     WHEREAS,   the  Company   now   desires  to  provide   for  the   creation,
establishment,  execution,  authentication,  delivery  and  issuance  under  the
Mortgage  of bonds of a fourth  series  to be  entitled  and  designated  "First
Mortgage Bonds, 3% Series, Due 1974" (the bonds of said series being hereinafter
sometimes  referred to as "1974  Bonds") of the  aggregate  principal  amount of
$8,000,000; and

     WHEREAS, all things necessary to make the 1974 Bonds hereinafter described,
when duly executed and issued by the Company and  authenticated  by the Trustee,
valid,  binding and legal  obligations  of the  Company,  and to make this Third
Supplemental  Indenture  a  valid  and  binding  agreement  supplemental  to the
Original Mortgage, have been done and performed; and

     WHEREAS,   the  execution  and  delivery  by  the  Company  of  this  Third
Supplemental  Indenture,  and the  terms  of the  1974  Bonds,  have  been  duly
authorized by the Board of Directors of the Company by  appropriate  resolutions
of said Board; and

     WHEREAS,  it is provided in and by the Original  Mortgage  that the Company
will execute and deliver such  further  instruments  and do such further acts as
may be  necessary  or proper to carry out more  effectually  the purposes of the
Mortgage,  and to make  subject  to the lien  thereof  any  property  thereafter
acquired and intended to be subject to the lien thereof; and

     WHEREAS,  the Company has,  since the date of execution and delivery of the
Original  Mortgage,   purchased  and  acquired  the  properties  and  franchises
hereinafter  described  and  desires by this  Third  Supplemental  Indenture  to
specifically  convey to the Trustee such property and  franchises for the better
protection  and security of the bonds issued and to be issued under the Original
Mortgage, or any indenture supplemental thereto;

     NOW,  THEREFORE,  THIS INDENTURE  WITNESSETH  that, in consideration of the
premises and of the  acceptance  or purchase of the 1974 Bonds by the holders or
registered  owners  thereof,  and of the sum of one dollar,  lawful money of the
United  States of America,  to the Company duly paid by the Trustee at or before
the execution  and delivery of this Third  Supplemental  Indenture,  the receipt
whereof is hereby acknowledged, the Company and the Trustee, respectively,  have
entered into, executed and delivered this Third Supplemental Indenture,  for the
uses and purposes hereinafter expressed, that is to say:

     SECTION 1. The Company has granted,  bargained,  sold, released,  conveyed,
assigned, transferred,  mortgaged, pledged, set over and confirmed, and by these
presents does grant, bargain, sell, release, convey, assign, transfer, mortgage,
pledge,  set over and confirm (subject,  however,  to permitted  encumbrances as
defined in the Original  Mortgage),  unto said American  National Bank and Trust
Company of Chicago,  as Trustee,  as herein provided,  and its successors in the
trusts declared in the Original Mortgage and herein, all of the property,  real,
personal  and mixed,  tangible  and  intangible,  of every kind,  character  and
description  which the Company has acquired  since the execution and delivery of
the  Original  Mortgage and now owns  (except  property,  rights and assets of a
character  similar to the property  that is excluded from the lien and operation
of the  Mortgage  by  the  Granting  Clauses  of the  Original  Mortgage,  which
property,  rights and assets are  excluded  from the lien and  operation  of the
Mortgage only to the extent provided  therein),  including but without otherwise
limiting the generality of the foregoing, the following described properties all
located within the State of Indiana;

                                     PART I.

                     REAL PROPERTY IN THE COUNTY OF MARION,
                                STATE OF INDIANA.

     All the right,  title and  interest of the Company in and to the  following
described and number parcels or tracts of land acquired by the Company after May
1, 1940, the date of the Original Mortgage,  and situate in the County of Marion
in the State of Indiana, together will all buildings, structures,  improvements,
machinery,  and equipment of every  description now or hereafter affixed thereto
or stationed thereon or appertaining thereto, to-wit:

                                 PARCEL NO. 128.

     A strip of ground of the uniform width of 80.3 feet, measured from North to
South taken by parallel lines off the north end of Lot Numbered  Sixty-four (64)
in Arlington Heights,  Third Section,  and Addition to the City of Indianapolis,
the plat of which is  recorded  in Plat  Book 19 page 20,  in the  office of the
Recorder of Marion County, Indiana.
     Subject,  however,  to the  rights  of the  State  of  Indiana  granted  by
instrument recorded in Deed Record 1088 page 43 in the office of the Recorder of
Marion County, Indiana.

                                 PARCEL NO. 129.

     Lot 26 and  part  of Lot 27 in  Edith  Francis'  Addition  to the  City  of
Indianapolis, as per plat thereof, recorded in Plat Book 6 page 33 in the Office
of the  Recorder  of Marion  County,  Indiana,  said  part of Lot 27 being  more
particularly described as follows, to-wit: Beginning at the south east corner of
Lot 26, running thence west 130 feet,  thence south 22 1/2 feet, thence east 130
feet, thence north 22 1/2 feet to the place of beginning.

                                 PARCEL NO. 130.

     Part of the  southeast  quarter of the  northeast  quarter  of Section  28,
Township 15 north,  Range 3 east  described as follows:  Beginning at a point in
the south line of, and 260 feet west of the southeast  corner of, said southeast
quarter,  said point being immediately west of the levee in the southeast corner
of said southeast  quarter,  thence  northeasterly  and parallel with said levee
848.82 feet to a point in the east line of said  southeast  quarter,  said point
being 804 feet north of the southeast corner of said southeast  quarter measured
along the east line of said southeast quarter,  thence north along the east line
of said  southeast  quarter  to the  center  line of White  River,  thence  in a
southwesterly  direction  along the center line of White River to the south line
of said  southeast  quarter,  thence east along the south line of said southeast
quarter to the place of beginning.

                                 PARCEL NO. 131.

     A tract of land located in Section 2,  Township 15 North,  Range 3 East, in
the City of Indianapolis, Marion County, Indiana, more particularly described as
follows:
     Beginning  at the  intersection  of the east  property  line of  Geisendorf
Street  and the  south  property  line of  Market  Street,  as now  located,  in
Indianapolis,  and running thence in a southeasterly direction, on and along the
south property line of Market Street, as now located,  a distance of 75.38 feet,
more or less,  to a point on the south  property line of Market Street and which
point is the  northwest  corner of Lot 17 in  Chandler  and Taylor  Subdivision;
thence,  in a  southerly  direction  on a line  making an  interior  angle of 90
degrees with the south line of Market Street, a distance of 223.30 feet, more or
less,  to a point  on the  north  property  line of  Washington  Avenue,  as now
located;  thence,  in a  northwesterly  direction  and on and  along  the  north
property line of Washington Avenue, as now located, which line makes an interior
angle of 82 degrees 10 minutes  with the last  described  course,  a distance of
67.62 feet,  more or less,  to the  intersection  of the north  property line of
Washington  Avenue  and the east  property  line of  Geisendorf  Street,  as now
located; thence, in a northerly direction on and along the east property line of
Geisendorf  Street, as now located,  which line makes an interior angle with the
last  described  course of 100 degrees 04 minutes,  a distance of 214.45 feet to
the point of beginning. Said tract contains 15,555 square feet, more or less.
     Also,  a tract of land  located in Section 2,  Township  15 North,  Range 3
East, in the City of Indianapolis,  Marion County,  Indiana,  more  particularly
described as follows:
     Beginning at the  intersection  of the north property line of Market Street
and the east property line of Geisendorf Street, as now located,  in the City of
Indianapolis,  and running thence north, 2 degrees 48 minutes east, on and along
the east  property  line of  Geisendorf  Street,  as now located,  a distance of
402.70 feet,  more or less,  to a point  established  by a stone set on the east
property line of Geisendorf Street;  thence south, 80 degrees 26 minutes east, a
distance of 127.70 feet, more or less, to a point  established by a stone set on
the west property line of Bright Street, as now located; thence south, 2 degrees
38  minutes  west,  on and along the west  property  line of  Bright  Street,  a
distance of 52.93 feet,  more or less, to a point  established by a stone set on
the west property  line of Bright  Street;  thence south,  83 degrees 44 minutes
east,  a distance of 89.94 feet to a point;  thence  south,  1 degree 31 minutes
east, a distance of 338.20 feet,  more or less, to a point on the north property
line of Market Street, as now located; thence north, 85 degrees 19 minutes west,
on and  along the  north  property  line of Market  Street,  as now  located,  a
distance of 242.32 feet,  more or less,  to the place of  beginning.  Said tract
contains 85,000 square feet, more or less.
     Subject  to certain  easements  reserved  by  grantor,  Indianapolis  Water
Company,  in Deed  recorded  in Deed  Record  1324 Page 333 in the office of the
Recorder  of  Marion   County,   Indiana,   and  subject   further  to  railroad
rights-of-way.

                                 PARCEL NO. 132.

     A part of the South  Half of the South  Half of the  Southwest  Quarter  of
Section 15,  Township 15 North,  Range 3 East in Marion  County,  Indiana,  more
particularly described as follows, to-wit:
     Beginning at the point of  intersection  of the North line of the aforesaid
Half Half  Quarter  Section and the East  property  line of Belmont  Avenue said
point being 69.20 feet East of the  Northwest  corner of said Half Half  Quarter
Section;  thence run East along and with the aforesaid North line 181.65 feet to
the point of  intersection of said North line and the  Northwestwardly  right of
way line of the  Indianapolis  Division of the P.C.C. & St. L. Railroad;  thence
Southwestwardly along and with the said Northwestwardly right of way line 240.83
feet to the  point  of  intersection  of said  right  of way  line  and the East
property line of Belmont Avenue; thence northwardly along and with the said East
line of Belmont Avenue 174.20 feet to the place of beginning,  containing  0.362
acres more or less.

                                    PART II.

                         ELECTRIC DISTRIBUTING SYSTEMS.

     All electric  distributing  systems of the Company acquired by it after May
1, 1940,  the date of the  Original  Mortgage,  and  located in the  Counties of
Marion,  Boone,  Hamilton,  Hancock,  Hendricks,  Morgan, and Johnson,  State of
Indiana;  and any  additions  to or  extensions  of any such plants and systems,
together with the buildings,  erections,  structures,  transmission lines, power
stations,   sub-stations,   engines,  boilers,   condensers,   pumps,  turbines,
machinery,  tools,  conduits,  manholes,  insulators,  dynamos,  motors,  lamps,
cables,  wires,  poles,  towers,  cross-arms,   piers,  abutments,   switchboard
equipment,  meters, appliances,  instruments,  apparatus,  appurtenances,  maps,
records, ledgers, easements,  contracts,  permits, facilities and other property
or  equipment  used or provided  for use in  connection  with the  construction,
maintenance, repair and operation thereof; together also with all of the rights,
privileges, rights-of-way, franchises, licenses, grants,  liberties, immunities,
ordinances,   permits,  and   easements  of  the   Company  in  respect  of  the
construction, maintenance, repair and operation of said plants and systems.

                                    PART III.

                    STEAM AND HOT WATER DISTRIBUTING SYSTEMS.

     All the steam and hot water  distributing  systems  acquired by the Company
after May 1, 1940, the date of the Original Mortgage, and located in the City of
Indianapolis,  Marion County, Indiana, and any additions to or extensions of any
such plants and systems;  together with the  buildings,  erections,  structures,
boilers, heaters, engines, tanks, pipe lines, mains, connections, service pipes,
meters, tools, instruments,  appliances,  apparatus,  facilities,  machinery and
other  property  and  equipment  used or provided  for use in the  construction,
maintenance,  repair and  operation  thereof;  and together also with all of the
rights,  privileges,  rights-of-way,  franchises,  licenses,  grants, liberties,
immunities,  ordinances,  permits and easements of the Company in respect of the
construction, maintenance, repair and operation of said plants and systems.

                                    PART IV.

                      INDETERMINATE PERMITS AND FRANCHISES.

     All indeterminate  permits,  franchises,  ordinances,  licenses,  and other
authorizations by or from any state, county, municipality, or other governmental
authority,  acquired by the Company after May 1, 1940,  the date of the Original
Mortgage, including particularly,  but not limited to, any indeterminate permits
under the Public Service  Commission  Act of the State of Indiana,  and all Acts
amendatory thereof and supplemental  thereto,  and all right, title and interest
therein now owned by the Company, and all renewals, extensions and modifications
of said  indeterminate  permits,  franchises,  ordinances,  licenses,  and other
authorizations,  and  of  the  indeterminate  permits,  franchises,  ordinances,
licenses,  and  other  authorizations  referred  to in Part VII of the  Granting
Clauses of the Original Mortgage.

                                     PART V.

                                 OTHER PROPERTY.

     All other  property,  whether  real,  personal or mixed  (except any in the
Mortgage expressly excepted), now owned by the Company and wheresoever situated,
including  (without in anywise  limiting or impairing by the  enumeration of the
same the  scope  and  intent  of the  foregoing  or of any  general  description
contained in the Original  Mortgage or this Third  Supplemental  Indenture)  all
lands, flowage rights, water rights, flumes,  raceways,  dams, rights of way and
roads; all plants for the generation of electricity by water, steam and/or other
power,  power houses,  telephone  systems,  water systems,  steam heat and power
plants,  hot  water  plants,  sub-stations,   transmission  lines,  distribution
systems,  bridges,  culverts and tracks; all offices,  buildings and structures,
and the equipment thereof; all machinery,  engines, boilers, dynamos,  machines,
regulators, meters, transformers,  generators and motors; all appliances whether
electrical, gas or mechanical, conduits, cables and lines; all pipes whether for
water,  steam heat and power,  or other purposes;  all mains and pipes,  service
pipes,  fittings,  valves and  connections,  poles,  wires,  tools,  implements,
apparatus,  furniture and  chattels;  all  municipal  franchises,  indeterminate
permits,  and other  permits;  all lines  for the  transportation,  transmission
and/or  distribution of electric current,  steam heat and power or water for any
purpose,  including  towers,  poles,  wires,  cables,  pipes,  conduits  and all
apparatus  for use in  connection  therewith;  all real estate,  lands,  leases,
leaseholds; all contracts,  whether heat, light, power, water or street lighting
contracts;  all  easements,   servitudes,  licenses,  permits,  rights,  powers,
franchises,  privileges,  rights of way and other  rights in or relating to real
estate  or the  occupancy  of the  same and  (except  as  hereinafter  or in the
Original Mortgage  expressly  excepted) all the right, title and interest of the
Company  in and to all  other  property  of any kind or nature  appertaining  to
and/or used and/or  occupied  and/or  enjoyed in  connection  with any  property
hereinbefore described or referred to;

     TOGETHER   WITH  all  and  singular  the   tenements,   hereditaments   and
appurtenances belonging or in any wise appertaining to the aforesaid property or
any part thereof,  with the reversion and  reversions,  remainder and remainders
and  (subject to the  provisions  of Section 64 of the Original  Mortgage),  the
tolls, rents, revenues,  issues, earnings,  income, product and profits thereof,
and all the estate,  right,  title and interest and claim whatsoever,  at law as
well as in equity,  which the Company now has or may hereafter acquire in and to
the aforesaid property,  indeterminate permits and franchises and every part and
parcel thereof.

     SECTION 2. There shall be and is hereby  created and  established  a fourth
series of bonds,  limited in aggregate  principal  amount to  $8,000,000,  to be
issued  under and secured by the  Mortgage,  to be  designated  "3% Series,  Due
1974",  each of which  shall also bear the  descriptive  title  "First  Mortgage
Bond";  said bonds shall mature on April 1, 1974,  and shall be issued as coupon
bonds in the denomination of One thousand dollars, registerable as to principal,
and as fully  registered bonds in denominations of One thousand dollars and Five
thousand  dollars  and,  at the  options  of the  Company,  in any  multiple  or
multiples of Five thousand dollars; they shall bear interest from April 1, 1949,
in the case of coupon  bonds,  and from the  beginning  of the current  interest
period  during  which each fully  registered  bond is dated in the case of fully
registered  bonds,  at the rate of three  per  centum  (3%) per  annum,  payable
semi-annually,  on April 1 and  October 1 of each year;  and the  principal  of,
premium, if any, and interest on each said bond shall be payable in lawful money
of the United  States of  America at the office or agency of the  Company in the
City of Chicago, Illinois.
     American  National Bank and Trust  Company of Chicago is hereby  designated
and  appointed  the  office  and agency of the  Company  for the  payment of the
principal  of,  premium,  if any, and interest on the 1974 Bonds;  all reference
herein to the office or agency of the Company  for the payment of the  principal
of,  premium,  if any,  and  interest  on the 1974 Bonds  being a  reference  to
American  National  Bank and  Trust  Company  of  Chicago.  In the  event of the
resignation  or  inability  to act of American  National  Bank Trust  Company of
Chicago,  then a  successor  paying  agent or  agents  in the  City of  Chicago,
Illinois, with respect to the principal of and interest on the 1974 Bonds, shall
be appointed by the Board of Directors of the Company.
     1974 Bonds in coupon  form shall be dated April 1, 1949.  Fully  registered
bonds of said series shall be dated as of the date of authentication,  except as
otherwise provided in Section 10 of the Original Mortgage.

     Upon the  notice and in the  manner  and with the  effect  provided  in the
Mortgage  and below in this  Section 2, 1974 Bonds  shall be  redeemable  by the
Company prior to the maturity  thereof  (otherwise than through the operation of
the Sinking  Fund created for the benefit of the 1974 Bonds by Section 5 of this
Indenture,  and otherwise than by the  application of moneys  deposited with the
Trustee representing the proceeds of mortgaged and pledged property taken by the
exercise of the power of eminent  domain or otherwise as provided in paragraph B
of Section 69 of the Mortgage),  as a whole at any time, or in part from time to
time, at the option of the Company,  at the following general  redemption prices
(expressed as percentages of their principal amount) respectively, to wit:

         104.500% if redeemed on or before March 31, 1950,
         104.375% if redeemed thereafter to and including March 31, 1951,
         104.250% if redeemed thereafter to and including March 31, 1952,
         104.125% if redeemed thereafter to and including March 31, 1953,
         104.000% if redeemed thereafter to and including March 31, 1954,
         103.875% if redeemed thereafter to and including March 31, 1955,
         103.750% if redeemed thereafter to and including March 31, 1956,
         103.625% if redeemed thereafter to and including March 31, 1957,
         102.750% if redeemed thereafter to and including March 31, 1958,
         102.625% if redeemed thereafter to and including March 31, 1959,
         102.500% if redeemed thereafter to and including March 31, 1960,
         102.375% if redeemed thereafter to and including March 31, 1961,
         102.250% if redeemed thereafter to and including March 31, 1962,
         102.125% if redeemed thereafter to and including March 31, 1963,
         102.000% if redeemed thereafter to and including March 31, 1964,
         101.750% if redeemed thereafter to and including March 31, 1965,
         101.250% if redeemed thereafter to and including March 31, 1966,
         101.125% if redeemed thereafter to and including March 31, 1967,
         101.000% if redeemed thereafter to and including March 31, 1968,
         100.875% if redeemed thereafter to and including March 31, 1969,
         100.750% if redeemed thereafter to and including March 31, 1970,
         100.625% if redeemed thereafter to and including March 31, 1971,
         100.500% if redeemed thereafter to and including March 31, 1972,
         100.375% if redeemed thereafter to and including March 31, 1973,
         100   % if redeemed thereafter,

together, in each case, with accrued interest to the redemption date.

     Upon the  notice and in the  manner  and with the  effect  provided  in the
Mortgage  and below in this  Section 2, 1974 Bonds  shall be  redeemable  by the
Company prior to the maturity  thereof through the operation of the Sinking Fund
created for the benefit of the 1974 Bonds by Section 5 of this Indenture, or out
of moneys deposited with the Trustee  representing the proceeds of mortgaged and
pledged  property  taken by exercise of the power of eminent domain or otherwise
as  provided  in  paragraph B of Section 69 of the  Mortgage,  at the  following
special  redemption  prices (expressed as percentages of their principal amount)
respectively, to wit:

         101.875% if redeemed on or before March 31, 1950,
         101.750% if redeemed thereafter to and including March 31, 1951,
         101.750% if redeemed thereafter to and including March 31, 1952,
         101.625% if redeemed thereafter to and including March 31, 1953,
         101.625% if redeemed thereafter to and including March 31, 1954,
         101.625% if redeemed thereafter to and including March 31, 1955,
         101.500% if redeemed thereafter to and including March 31, 1956,
         101.500% if redeemed thereafter to and including March 31, 1957,
         101.375% if redeemed thereafter to and including March 31, 1958,
         101.375% if redeemed thereafter to and including March 31, 1959,
         101.250% if redeemed thereafter to and including March 31, 1960,
         101.250% if redeemed thereafter to and including March 31, 1961,
         101.125% if redeemed thereafter to and including March 31, 1962,
         101.125% if redeemed thereafter to and including March 31, 1963,
         101.000% if redeemed thereafter to and including March 31, 1964,
         100.875% if redeemed thereafter to and including March 31, 1965,
         100.875% if redeemed thereafter to and including March 31, 1966,
         100.750% if redeemed thereafter to and including March 31, 1967,
         100.750% if redeemed thereafter to and including March 31, 1968,
         100.625% if redeemed thereafter to and including March 31, 1969,
         100.500% if redeemed thereafter to and including March 31, 1970,
         100.500% if redeemed thereafter to and including March 31, 1971,
         100.375% if redeemed thereafter to and including March 31, 1972,
         100.250% if redeemed thereafter to and including March 31, 1973,
         100   % if redeemed thereafter,

together, in each case, with accrued interest to the redemption date.

     The notice  required for the  redemption of the 1974 Bonds shall include at
least thirty (30) days' published  notice (such  publication to be made at least
once in each of four (4) successive  calendar weeks upon any secular day of each
such week, which need not be the same day in each week).

     At the option of the holder,  any 1974 Bonds in coupon form, upon surrender
thereof  with  all  unmatured   coupons  and  any  matured  coupons  in  default
appertaining  thereto  at the  office or agency  of the  Company  in the City of
Chicago,  Illinois,  shall be exchangeable for a like aggregate principal amount
of fully registered bonds of the same series of authorized denominations. At the
option of the registered  holder, any fully registered 1974 Bond, upon surrender
thereof  at said  office  or  agency  of the  Company  together  with a  written
instrument  of transfer in form  approved  by the Company  duly  executed by the
registered holder or by his duly authorized attorney,  shall be exchangeable for
a like aggregate  principal amount of coupon bonds of the same series,  with all
unmatured  coupons and any matured  coupons in default  attached,  or for a like
aggregate principal amount of fully registered bonds of the same series of other
authorized denominations.
     The holder of any 1974 Bond in coupon form may have the  ownership  thereof
registered  as to  principal on the books of the Company at the office or agency
of the Company in the City of Chicago,  Illinois, and such registration noted on
such  bond.  After such  registration  no  transfer  of such bond shall be valid
unless  made at said office or agency by the  registered  holder in person or by
his duly authorized  attorney and similarly noted on such bond; but the same may
be discharged from  registration  by being in like manner  transferred to bearer
and thereupon  transferability by delivery shall be restored;  but such bond may
again from time to time be  registered  or  transferred  to bearer in accordance
with the above  procedure.  Such  registration,  however,  shall not  affect the
negotiability  of the coupons  appertaining to such bonds, but every such coupon
shall continue to be transferable by delivery merely and shall remain payable to
bearer.  Fully  registered 1974 Bonds shall also be transferable on the books of
the  Company at said office or agency of the  Company by the  registered  holder
thereof,  in person  or by his duly  authorized  attorney,  upon  surrender  for
cancellation thereof.
     The issue of 1974 Bonds shall be limited to an aggregate  principal  amount
of Eight Million Dollars ($8,000,000) and shall be made on the basis of property
additions under the provisions of Article VI of the Original Mortgage.

     SECTION 3. Such coupon 1974 Bonds, coupons and fully registered 1974 Bonds,
and  the  Trustee's  certificate  thereon,  shall  be in  the  following  forms,
respectively:

                              (Form of Coupon Bond)

                       INDIANAPOLIS POWER & LIGHT COMPANY

                    First Mortgage Bond, 3% Series, Due 1974
                                   Due April 1, 1974

$1,000.00
      No._______________

     INDIANAPOLIS  POWER & LIGHT COMPANY,  a corporation of the State of Indiana
(hereinafter called the Company), for value received,  hereby promises to pay to
the bearer,  or, if this bond be registered,  to the registered owner hereof, on
April 1, 1974,  at the office or agency of the  Company in the City of  Chicago,
Illinois,  One Thousand Dollars in lawful money of the United States of America,
and to pay interest thereon from the date hereof at the rate of three per centum
per annum in like lawful money, at said office or agency on April 1, and October
1 in each year,  until the Company's  obligation  with respect to the payment of
such principal shall have been discharged, but only, in the case of interest due
on or  before  maturity,  according  to the  tenor  and  upon  presentation  and
surrender of the respective coupons therefor hereto attached,  as they severally
mature.  This  bond is one of an  issue of bonds  of the  Company,  issuable  in
series, and is one of a series known as its First Mortgage Bonds, 3% Series, Due
1974,  limited in aggregate  principal amount to $8,000,000 and established by a
Third Supplemental  Indenture dated as of April 1, 1949, all bonds of all series
issued  and to be issued  under and  equally  secured  (except  in so far as any
sinking or other fund,  established  in  accordance  with the  provisions of the
Mortgage hereinafter mentioned,  may afford additional security for the bonds of
any particular series) by a Mortgage and Deed of Trust, dated as of May 1, 1940,
executed by the Company to American  National Bank and Trust Company of Chicago,
as Trustee (which Mortgage and Deed of Trust as supplemented by all supplemental
indentures is  hereinafter  referred to as the  "Mortgage"),  to which  Mortgage
reference is made for a description of the property  mortgaged and pledged,  the
nature  and extent of the  security,  the  rights of the  bearers or  registered
owners of the bonds in respect of such  security,  the duties and  immunities of
the Trustee and the terms and conditions upon which the bonds are secured.
     With the  consent  of the  Company  and to the extent  permitted  by and as
provided in the Mortgage,  the rights and  obligations  of the Company and/or of
the holders of the bonds and/or  coupons  and/or the terms and provisions of the
Mortgage  and/or of any  instruments  supplemental  thereto  may be  modified or
altered by affirmative  vote of the holders of at least sixty-six and two-thirds
per  centum  (66  2/3%)  in  principal  amount  of the  bonds  affected  by such
modification or alteration, then outstanding under the Mortgage (excluding bonds
disqualified from voting by reason of the Company's interest therein as provided
in the Mortgage);  provided that no such modification or alteration shall permit
the  extension of the maturity of the principal of this bond or the reduction in
the rate of interest hereon or any other modification in the terms of payment of
such  principal  or  interest  without  the  consent of the holder  hereof.  The
principal  hereof may be  declared  or may become due and  payable  prior to the
stated date of maturity hereof, on the conditions, in the manner and at the time
set forth in the Mortgage,  upon the occurrence of a completed default as in the
Mortgage provided.
     This bond shall pass by delivery  unless  registered as to principal in the
owner's  name at the  office or agency of the  Company  in the City of  Chicago,
Illinois,  and such  registration  noted hereon,  after which no valid  transfer
hereof can be made,  except at such  office or agency,  until  after  registered
transfer to bearer, but after such registered transfer to bearer this bond shall
be again transferable by delivery. Such registration,  however, shall not affect
the  negotiability  of the coupons,  which shall always remain payable to bearer
and transferable by delivery. The Company and the Trustee may deem and treat the
bearer of this bond if it be not registered as to principal, or, if this bond is
registered  as  herein  authorized,  the  person  in  whose  name  the  same  is
registered,  and the bearer of any coupon hereto  appertaining,  as the absolute
owner for the purpose of receiving payment and for all other purposes.
     The 1974 Bonds are  subject to  redemption  prior to the  maturity  thereof
(otherwise  than  through  the  operation  of the Sinking  Fund  created for the
benefit of the 1974 Bonds by Section 5 of said Third Supplemental Indenture, and
otherwise  than  by  the  application  of  moneys  deposited  with  the  Trustee
representing  the  proceeds  of  mortgaged  and  pledged  property  taken by the
exercise of the power of eminent  domain or otherwise as provided in paragraph B
of Section 69 of the Mortgage),  as a whole at any time, or in part from time to
time, at the option of the Company,  at the following general  redemption prices
(expressed as percentages of their principal amount) respectively, to wit:

         104.500% if redeemed on or before March 31, 1950,
         104.375% if redeemed thereafter to and including March 31, 1951,
         104.250% if redeemed thereafter to and including March 31, 1952,
         104.125% if redeemed thereafter to and including March 31, 1953,
         104.000% if redeemed thereafter to and including March 31, 1954,
         103.875% if redeemed thereafter to and including March 31, 1955,
         103.750% if redeemed thereafter to and including March 31, 1956,
         103.625% if redeemed thereafter to and including March 31, 1957,
         102.750% if redeemed thereafter to and including March 31, 1958,
         102.625% if redeemed thereafter to and including March 31, 1959,
         102.500% if redeemed thereafter to and including March 31, 1960,
         102.375% if redeemed thereafter to and including March 31, 1961,
         102.250% if redeemed thereafter to and including March 31, 1962,
         102.125% if redeemed thereafter to and including March 31, 1963,
         102.000% if redeemed thereafter to and including March 31, 1964,
         101.750% if redeemed thereafter to and including March 31, 1965,
         101.250% if redeemed thereafter to and including March 31, 1966,
         101.125% if redeemed thereafter to and including March 31, 1967,
         101.000% if redeemed thereafter to and including March 31, 1968,
         100.875% if redeemed thereafter to and including March 31, 1969,
         100.750% if redeemed thereafter to and including March 31, 1970,
         100.625% if redeemed thereafter to and including March 31, 1971,
         100.500% if redeemed thereafter to and including March 31, 1972,
         100.375% if redeemed thereafter to and including March 31, 1973,
         100   % if redeemed thereafter,

together, in each case, with accrued interest to the redemption date.

     The 1974 Bonds are subject to redemption  prior to maturity thereof through
the  operation  of the Sinking Fund created for the benefit of the 1974 Bonds by
Section 5 of said Third Supplemental  Indenture, or out of moneys deposited with
the Trustee representing the proceeds of mortgaged and pledged property taken by
exercise of the power of eminent  domain or otherwise as provided in paragraph B
of  Section 69 of the  Mortgage,  at the  following  special  redemption  prices
(expressed as percentages of their principal amount) respectively, to wit:

         101.875% if redeemed on or before March 31, 1950,
         101.750% if redeemed thereafter to and including March 31, 1951,
         101.750% if redeemed thereafter to and including March 31, 1952,
         101.625% if redeemed thereafter to and including March 31, 1953,
         101.625% if redeemed thereafter to and including March 31, 1954,
         101.625% if redeemed thereafter to and including March 31, 1955,
         101.500% if redeemed thereafter to and including March 31, 1956,
         101.500% if redeemed thereafter to and including March 31, 1957,
         101.375% if redeemed thereafter to and including March 31, 1958,
         101.375% if redeemed thereafter to and including March 31, 1959,
         101.250% if redeemed thereafter to and including March 31, 1960,
         101.250% if redeemed thereafter to and including March 31, 1961,
         101.125% if redeemed thereafter to and including March 31, 1962,
         101.125% if redeemed thereafter to and including March 31, 1963,
         101.000% if redeemed thereafter to and including March 31, 1964,
         100.875% if redeemed thereafter to and including March 31, 1965,
         100.875% if redeemed thereafter to and including March 31, 1966,
         100.750% if redeemed thereafter to and including March 31, 1967,
         100.750% if redeemed thereafter to and including March 31, 1968,
         100.625% if redeemed thereafter to and including March 31, 1969,
         100.500% if redeemed thereafter to and including March 31, 1970,
         100.500% if redeemed thereafter to and including March 31, 1971,
         100.375% if redeemed thereafter to and including March 31, 1972,
         100.250% if redeemed thereafter to and including March 31, 1973,
         100   % if redeemed thereafter,

         together, in each case, with accrued interest to the redemption date

     In the manner and upon payment of the charges  prescribed  in the Mortgage,
coupon  bonds of the 3%  Series,  Due  1974,  upon  surrender  thereof  with all
unmatured coupons and any matured coupons in default appertaining thereto at the
office  or  agency  of the  Company  in  the  City  of  Chicago,  Illinois,  are
exchangeable for a like aggregate  principal amount of fully registered bonds of
the same  series  of  authorized  denominations,  and in like  manner  any fully
registered  bonds of the 3% Series,  Due 1974,  upon  surrender  thereof at said
office or agency of the Company,  from time to time with a written instrument of
transfer in form approved by the Company duly executed by the registered  holder
or by his  duly  authorized  attorney,  are  exchangeable  for a like  aggregate
principal amount of coupon bonds of the same series,  with all unmatured coupons
and any matured coupons in default attached,  or for a like aggregate  principal
amount  of  fully  registered  bonds  of the same  series  of  other  authorized
denominations.
     No recourse shall be had for the payment of the principal of or interest on
this bond against any incorporator or any past,  present or future subscriber to
the  capital  stock,  stockholder,  officer or director of the Company or of any
predecessor or successor  corporation,  as such,  either directly or through the
Company  or any  predecessor  or  successor  corporation  under any rule of law,
statue or constitution or by the enforcement of any assessment or otherwise, all
such  liability  of  incorporators,   subscribers,  stockholders,  officers  and
directors, as such, being waived and released by the terms of the Mortgage.
     This bond shall not become  obligatory  until  American  National  Bank and
Trust  Company of Chicago,  the Trustee  under the  Mortgage,  or its  successor
thereunder, shall have signed the form of certificate endorsed hereon.

     IN WITNESS WHEREOF, Indianapolis Power & Light Company has caused this bond
to be signed in its name by its President or one of its  Vice-Presidents and its
corporate  seal to be affixed hereto and attested by its Secretary or one of its
Assistant  Secretaries,  and interest coupons bearing the facsimile signature of
its Treasurer to be attached hereto.

     Dated, April 1, 1949.

                                            INDIANAPOLIS POWER & LIGHT COMPANY,




                                            By:
                                               ---------------------------------
                                                                President

Attest:

______________________________,
                Secretary.



                            [Form of October Coupon]

                    First Mortgage Bond, 3% Series, Due 1974

$15.00
    No._________

     On October 1, ______, INDIANAPOLIS POWER & LIGHT COMPANY will pay to bearer
at its office or agency in the City of  Chicago,  Illinois,  Fifteen  Dollars in
lawful money of the United States of America, as specified in its First Mortgage
Bond, 3% Series, Due 1974, No.  __________,  being six months' interest then due
on said bond.

     This coupon will not be payable if said bond shall have  previously  become
payable or been called for previous redemption and payment duly provided for.



                                               ---------------------------------
                                                                Treasurer

                             [Form of April Coupon]

                    First Mortgage Bond, 3% Series, Due 1974

$15.00
    No._________

     On April 1, _____, INDIANAPOLIS POWER & LIGHT COMPANY will pay to bearer at
its office or agency in the City of Chicago, Illinois, Fifteen Dollars in lawful
money of the United States of America,  as specified in its First Mortgage Bond,
3% Series,  Due 1974, No.  ___________,  being six months' interest then due, on
said bond.

     This coupon will not be payable if said bond shall have  previously  become
payable or been called for previous redemption and payment duly provided for.



                                                --------------------------------
                                                                     Treasurer


                         (Form of Fully Registered Bond)

                       INDIANAPOLIS POWER & LIGHT COMPANY
                    First Mortgage Bond, 3% Series, Due 1974

                                Due April 1, 1974

$__________
        No._______________

     INDIANAPOLIS  POWER & LIGHT COMPANY,  a corporation of the State of Indiana
(hereinafter  called the Company),  for value  received,  hereby promises to pay
_________________________________________  or registered assigns, April 1, 1974,
at the  office  or  agency  of the  Company  in the City of  Chicago,  Illinois,
_________________________  Dollars  in  lawful  money of the  United  States  of
America,  and to pay to the registered  owner hereof  interest  thereon from the
first day of April next  preceding  the date of this bond, or from the first day
of October next  preceding  the date of this bond if this bond be dated  between
October 1 and April 2 of any year,  at the rate of Three per centum per annum in
like  lawful  money,  at said  office or agency on April 1 and October 1 in each
year,  until the  Company's  obligation  with  respect  to the  payment  of such
principal shall have been  discharged.  This bond is one of an issue of bonds of
the  Company,  issuable  in  series,  and is one of a series  known as its First
Mortgage Bonds, 3% Series,  Due 1974,  limited in aggregate  principal amount to
$8,000,000 and established by a Third  Supplemental  Indenture dated as of April
1, 1949,  all bonds of all  series  issued  and to be issued  under and  equally
secured  (except  in so  far  as any  sinking  or  other  fund,  established  in
accordance with the provisions of the Mortgage hereinafter mentioned, may afford
additional  security for the bonds of any  particular  series) by a Mortgage and
Deed of Trust,  dated as of May 1, 1940,  executed  by the  Company to  American
National Bank and Trust Company of Chicago, as Trustee, (which Mortgage and Deed
of Trust as supplemented by all supplemental  indentures is hereinafter referred
to as the  "Mortgage") to which Mortgage  reference is made for a description of
the property mortgaged and pledged,  the nature and extent of the security,  the
rights of the  bearers  or  registered  owners of the bonds in  respect  of such
security,  the duties and immunities of the Trustee and the terms and conditions
upon which the bonds are secured.

     With the  consent  of the  Company  and to the extent  permitted  by and as
provided in the Mortgage,  the rights and  obligations  of the Company and/or of
the holders of the bonds and/or  coupons  and/or the terms and provisions of the
Mortgage  and/or of any  instruments  supplemental  thereto  may be  modified or
altered by affirmative  vote of the holders of at least sixty-six and two-thirds
per  centum  (66  2/3%)  in  principal  amount  of the  bonds  affected  by such
modification or alteration, then outstanding under the Mortgage (excluding bonds
disqualified from voting by reason of the Company's interest therein as provided
in the Mortgage);  provided that no such modification or alteration shall permit
the  extension of the maturity of the principal of this bond or the reduction in
the rate of interest hereon or any other modification in the terms of payment of
such  principal  or  interest  without  the  consent of the holder  hereof.  The
principal  hereof may be  declared  or may become due and  payable  prior to the
stated date of maturity hereof, on the conditions, in the manner and at the time
set forth in the Mortgage,  upon the occurrence of a completed default as in the
Mortgage provided.

     This bond is  transferable  as prescribed in the Mortgage by the registered
owner hereof in person,  or by his duly  authorized  attorney,  at the office or
agency of the  Company in the City of  Chicago,  Illinois,  upon  surrender  and
cancellation  of this  bond and upon  presentation  of a written  instrument  of
transfer,  duly executed,  and upon payment, if the Company shall require it, of
the transfer charges  prescribed in the Mortgage,  and,  thereupon,  a new fully
registered bond of the same series for a like principal amount will be issued to
the transferee in exchange herefor as provided in the Mortgage.  The Company and
the Trustee may deem and treat the person in whose name this bond is  registered
as the absolute  owner  hereof for the purpose of receiving  payment and for all
other purposes.

     The 1974 Bonds are  subject to  redemption  prior to the  maturity  thereof
(otherwise  than  through  the  operation  of the Sinking  Fund  created for the
benefit of the 1974 Bonds by Section 5 of said Third Supplemental Indenture, and
otherwise  than  by  the  application  of  moneys  deposited  with  the  Trustee
representing  the  proceeds  of  mortgaged  and  pledged  property  taken by the
exercise of the power of eminent  domain or otherwise as provided in paragraph B
of Section 69 of the Mortgage),  as a whole at any time, or in part from time to
time, at the option of the Company,  at the following general  redemption prices
(expressed as percentages of their principal amount) respectively, to wit:

         104.500% if redeemed on or before March 31, 1950,
         104.375% if redeemed thereafter to and including March 31, 1951,
         104.250% if redeemed thereafter to and including March 31, 1952,
         104.125% if redeemed thereafter to and including March 31, 1953,
         104.000% if redeemed thereafter to and including March 31, 1954,
         103.875% if redeemed thereafter to and including March 31, 1955,
         103.750% if redeemed thereafter to and including March 31, 1956,
         103.625% if redeemed thereafter to and including March 31, 1957,
         102.750% if redeemed thereafter to and including March 31, 1958,
         102.625% if redeemed thereafter to and including March 31, 1959,
         102.500% if redeemed thereafter to and including March 31, 1960,
         102.375% if redeemed thereafter to and including March 31, 1961,
         102.250% if redeemed thereafter to and including March 31, 1962,
         102.125% if redeemed thereafter to and including March 31, 1963,
         102.000% if redeemed thereafter to and including March 31, 1964,
         101.750% if redeemed thereafter to and including March 31, 1965,
         101.250% if redeemed thereafter to and including March 31, 1966,
         101.125% if redeemed thereafter to and including March 31, 1967,
         101.000% if redeemed thereafter to and including March 31, 1968,
         100.875% if redeemed thereafter to and including March 31, 1969,
         100.750% if redeemed thereafter to and including March 31, 1970,
         100.625% if redeemed thereafter to and including March 31, 1971,
         100.500% if redeemed thereafter to and including March 31, 1972,
         100.375% if redeemed thereafter to and including March 31, 1973,
         100   % if redeemed thereafter,

together, in each case, with accrued interest to the redemption date.

     The 1974 Bonds are subject to redemption  prior to maturity thereof through
the  operation  of the Sinking Fund created for the benefit of the 1974 Bonds by
Section 5 of said Third Supplemental  Indenture, or out of moneys deposited with
the Trustee representing the proceeds of mortgaged and pledged property taken by
exercise of the power of eminent  domain or otherwise as provided in paragraph B
of  Section 69 of the  Mortgage,  at the  following  special  redemption  prices
(expressed as percentages of their principal amount) respectively, to wit:

         101.875% if redeemed on or before March 31, 1950,
         101.750% if redeemed thereafter to and including March 31, 1951,
         101.750% if redeemed thereafter to and including March 31, 1952,
         101.625% if redeemed thereafter to and including March 31, 1953,
         101.625% if redeemed thereafter to and including March 31, 1954,
         101.625% if redeemed thereafter to and including March 31, 1955,
         101.500% if redeemed thereafter to and including March 31, 1956,
         101.500% if redeemed thereafter to and including March 31, 1957,
         101.375% if redeemed thereafter to and including March 31, 1958,
         101.375% if redeemed thereafter to and including March 31, 1959,
         101.250% if redeemed thereafter to and including March 31, 1960,
         101.250% if redeemed thereafter to and including March 31, 1961,
         101.125% if redeemed thereafter to and including March 31, 1962,
         101.125% if redeemed thereafter to and including March 31, 1963,
         101.000% if redeemed thereafter to and including March 31, 1964,
         100.875% if redeemed thereafter to and including March 31, 1965,
         100.875% if redeemed thereafter to and including March 31, 1966,
         100.750% if redeemed thereafter to and including March 31, 1967,
         100.750% if redeemed thereafter to and including March 31, 1968,
         100.625% if redeemed thereafter to and including March 31, 1969,
         100.500% if redeemed thereafter to and including March 31, 1970,
         100.500% if redeemed thereafter to and including March 31, 1971,
         100.375% if redeemed thereafter to and including March 31, 1972,
         100.250% if redeemed thereafter to and including March 31, 1973,
         100   % if redeemed thereafter,

         together, in each case, with accrued interest to the redemption date

     In the manner and upon payment of the charges  prescribed  in the Mortgage,
coupon  bonds of the 3%  Series,  Due  1974,  upon  surrender  thereof  with all
unmatured coupons and any matured coupons in default appertaining thereto at the
office  or  agency  of the  Company  in  the  City  of  Chicago,  Illinois,  are
exchangeable for a like aggregate  principal amount of fully registered bonds of
the same  series  of  authorized  denominations,  and in like  manner  any fully
registered  bonds of the 3% Series,  Due 1974,  upon  surrender  thereof at said
office or agency of the Company,  from time to time with a written instrument of
transfer in form approved by the Company duly executed by the registered  holder
or by his  duly  authorized  attorney,  are  exchangeable  for a like  aggregate
principal amount of coupon bonds of the same series,  with all unmatured coupons
and any matured coupons in default attached,  or for a like aggregate  principal
amount  of  fully  registered  bonds  of the same  series  of  other  authorized
denominations.

     No recourse shall be had for the payment of the principal of or interest on
this bond against any incorporator or any past,  present or future subscriber to
the  capital  stock,  stockholder,  officer or director of the Company or of any
predecessor or successor  corporation,  as such,  either directly or through the
Company  or any  predecessor  or  successor  corporation  under any rule of law,
statue or constitution or by the enforcement of any assessment or otherwise, all
such  liability  of  incorporators,   subscribers,  stockholders,  officers  and
directors, as such, being waived and released by the terms of the Mortgage.

     This bond shall not become  obligatory  until  American  National  Bank and
Trust  Company of Chicago,  the Trustee  under the  Mortgage,  or its  successor
thereunder, shall have signed the form of certificate endorsed hereon.

     IN WITNESS WHEREOF, Indianapolis Power & Light Company has caused this bond
to be signed in its name by its President or one of its  Vice-Presidents and its
corporate  seal to be affixed hereto and attested by its Secretary or one of its
Assistant Secretaries.

     Dated, _______________________.

                                             INDIANAPOLIS POWER & LIGHT COMPANY,

                                             By:
                                                --------------------------------
                                                                President

Attest:

----------------------------------
                       Secretary


                  [Form of Trustee's Certificate on all Bonds]

                              Trustee's Certificate

     This bond is one of the bonds,  of the series herein  designated,  provided
for in the within-mentioned Mortgage and Third Supplemental Indenture.


                                                AMERICAN NATIONAL BANK AND TRUST
                                                COMPANY OF CHICAGO, Trustee,


                                                By:
                                                   -----------------------------
                                                            Authorized Officer

     SECTION 4. Until the 1974 Bonds in definitive  form are ready for delivery,
the Company  may  execute,  and upon its  request in writing  the Trustee  shall
authenticate  and deliver,  in lieu  thereof,  1974 Bonds in temporary  form, as
provided  in  Section  15 of  the  Original  Mortgage,  with  the  privilege  of
registration  as to principal only, and with Coupons No. 1 and No. 2 maturing on
October 1, 1949 and April 1, 1950, respectively.  Such bonds may, in lieu of the
statement of the  specific  redemption  prices  required to be set forth in such
Bonds in  definitive  form,  included a  reference  to this  Third  Supplemental
Indenture for a statement of such redemption prices.

     SECTION 5. The  Company  covenants  that,  so long as any of the 1974 Bonds
issued under this Third  Supplemental  Indenture  shall remain  outstanding,  it
will, on or before the first day of April of each year  beginning  with the year
1954,  deliver to the Trustee,  as and for a Sinking Fund for the benefit of the
holders  or the  registered  owners of 1974  Bonds,  an  amount  in cash  and/or
principal amount of 1974 Bonds equivalent to one per centum (1%) of the greatest
principal amount of 1974 Bonds theretofore at any one time outstanding.

     Such  cash  together  with any bonds  delivered  to the  Trustee  under the
provisions of this Section shall be dealt with as provided for by this Section.

     All  cash  deposited  by the  Company  with  the  Trustee  pursuant  to the
provisions of this Section shall be applied by the Trustee from time to time and
as rapidly as may be practicable to the purchase of 1974 Bonds then outstanding,
at public or  private  sale at the  lowest  prices  at which  such  bonds can be
obtained, not exceeding,  however, the then special redemption price and accrued
interest  thereon to the date of purchase,  or, if the Company shall so request,
the  Trustee  shall  apply any cash then held by it under  this  Section  to the
redemption of 1974 Bonds as soon as may be  practicable  after such request.  In
case the balance of such cash remaining with the Trustee on the twentieth day of
August of any year beginning with the year 1954 shall aggregate $25,000 or more,
the  Trustee  shall apply the same to the  redemption  of 1974 Bonds on the next
succeeding first day of October,  in which case the Trustee shall give notice of
such  redemption in the name of the Company in the manner and in accordance with
the applicable  provisions of Article XII of the Original Mortgage and Section 2
of this Third  Supplemental  Indenture;  and the Trustee is hereby appointed the
agent of the Company for such purpose.  The Company  covenants that whenever any
redemption of 1974 Bonds shall be required under the provisions of this Section,
it will at the request of the Trustee take all action  necessary,  and authorize
the Trustee to take all action necessary, to redeem such bonds.

     The 1974 Bonds shall be subject to redemption through the operation of such
Sinking Fund by the payment of an amount equal to the  applicable  percentage of
principal  amount set forth in Section 2 of this Third  Supplemental  Indenture,
plus accrued and unpaid interest to the date fixed for  redemption.  The Company
shall have the right to tender  1974 Bonds for sale by it to the  Trustee  under
the provisions of this Section.

     The Company shall pay to the Trustee,  on demand, the amount of accrued and
unpaid interest upon all bonds purchased or redeemed pursuant to this Section.

     Any bonds  deposited,  purchased or redeemed  pursuant to the provisions of
this Section,  shall forthwith be canceled by the Trustee,  and upon the request
of the  Company,  the  Trustee may cremate the same and deliver to the Company a
certificate of such cremation.

     The  Company  covenants  that it will not use any bonds  heretofore  issued
under the  Mortgage  (including  any of the 1974  Bonds)  which  may be  retired
pursuant to the respective  sinking funds provided for the bonds now outstanding
or the 1974 bonds,  as the basis for the  authentication  and  delivery of bonds
pursuant to Article VII of the  Mortgage,  or as a credit  pursuant to any other
provision of the Mortgage.

     SECTION 6. The  Company  covenants  that,  so long as any of the 1974 Bonds
shall  remain  outstanding,  it will  continue to make to the Trustee the annual
payments for a Maintenance  and  Improvement  Fund required by Section 41 of the
Original Mortgage and will comply with the provisions of said Section 41.

     SECTION 7. The  Company  covenants  that,  so long as any of the 1974 Bonds
shall remain  outstanding,  it will comply with all of the provisions of Section
47  of  the  Original  Mortgage,   including  the  provisions  with  respect  to
limitations  on dividends and  distributions  and the purchase and redemption of
stock.

     SECTION 8. Section 1 of the Original  Mortgage is hereby  supplemented  and
amended by adding the following new sentence to said Section 1, as follows:

                  "Any term defined in Section 303 of the Trust
                  Indenture Act of 1939 and not defined in this
                  Indenture shall have the meaning assigned to such
                  term in such Section 303."

     SECTION 9. The first  sentence of the next to the last paragraph of Section
2 of the Original Mortgage is hereby amended so that said sentence,  as amended,
shall read as follows:

                  "For the purposes of Sections 46, 72, 76, 77, 87,
                  98, 112, 113, 115, 119, and 124 hereof, in
                  determining whether the holders of the required
                  percentage of the principal amount of bonds have
                  concurred in any direction, request, consent, or
                  in determining a quorum under Section 123, bonds
                  owned by the Company or by any other obligor on
                  the bonds, or by any person directly or
                  indirectly controlling or controlled by or under
                  direct or indirect common control with the
                  Company or such obligor, shall be disregarded,
                  except that for the purpose of determining
                  whether the Trustee shall be protected in relying
                  on any such direction, request or consent only
                  bonds which the Trustee knows are so owned, shall
                  be so disregarded."

     SECTION  10.  Section  30 of the  Original  Mortgage  is hereby  amended by
striking  out the words "or more than" in the two places where such words appear
in subdivision (3) of said Section 30.

     Section 30 of the Original Mortgage is hereby further amended by adding the
following new sentence at the end of subdivision (10) thereof:

                  "Any such supplemental indenture shall comply
                  with all applicable provisions of the Trust
                  Indenture Act of 1939 as then in force."

     SECTION 11. Section 53 of the Original Mortgage is hereby  supplemented and
amended by adding  immediately  after  subsection  (d) thereof the following new
subsection (e) as follows:

                  "(e)  The provisions of this Section 53, which
                  have been made specifically applicable to the
                  Trustee shall apply to the Trustee and, if a
                  separate or co-trustee is appointed pursuant to
                  the provisions of Section 114 hereof, to any
                  separate or co-trustee."

     SECTION  12.  Section  38 of the  Original  Mortgage  is hereby  amended by
amending  subsection (a) thereof so that said subsection (a), as amended,  shall
read as follows:

                  "(a)  That, if the Company shall appoint a paying
                  agent other than the Trustee, it will cause such
                  paying agent to execute and deliver to the
                  Trustee an instrument in which such paying agent
                  shall agree with the Trustee, subject to the
                  provisions of this Section, (1) that such paying
                  agent shall hold in trust for the benefit of the
                  bondholders or the Trustee all sums held by such
                  paying agent for the payment of the principal of
                  or interest on the bonds and premium, if any; and
                  (2) that such paying agent shall give the Trustee
                  notice of any default by the Company or any other
                  obligor on the bonds in the making of any deposit
                  with it for the payment of the principal of or
                  interest on the bonds and premium, if any, and of
                  any default by the Company or any other obligor
                  on the bonds in the making of any such payment.
                  Such paying agent shall not be obligated to
                  segregate such sums from other funds of such
                  paying agent except to the extent required by
                  law."

     SECTION  13.  Section  65 of the  Original  Mortgage  is hereby  amended by
amending subdivision (1) thereof so that said subdivision (1), as amended, shall
read as follows:

                  "(1)  sell or otherwise dispose of, free from the
                  lien of this Indenture any machinery, equipment,
                  tools, implements or other similar property,
                  which shall have become old, inadequate,
                  obsolete, worn out or unfit or unadapted for use
                  in the operations of the Company, upon replacing
                  the same by or substituting for the same other
                  property (not then within the term funded
                  property) of at least equal value to that of the
                  property sold or otherwise disposed of and
                  subject to no liens prior hereto except liens to
                  which the property sold or otherwise disposed of
                  was subject;"

     SECTION 14. Section 85 of the Original Mortgage is hereby  supplemented and
amended by adding at the end thereof a new paragraph, as follows:

                  "For the purposes of this Section 85 the term
                  "Company" shall include any other obligor on the
                  bonds."

     SECTION 15.  Section 97 and Section 98 of the Original  Mortgage are hereby
supplemented  and  amended  by  adding  at the end of each  such  Section  a new
paragraph, as follows:

                  "The provisions of this Section, which have been
                  made specifically applicable to the Trustee,
                  shall apply to the Trustee and, if a separate or
                  co-trustee is appointed pursuant to Section 114
                  hereof, to any separate or co-trustee."

     SECTION 16. Section 124 of the Original Mortgage is hereby supplemented and
amended  by adding  at the end of the first  sentence  of said  Section  124 the
following proviso:

                  "; and provided, further, that no such
                  modification or alteration shall permit the
                  waiver of any completed default, as defined in
                  Section 72 hereof, and its consequences without
                  the approval of at least a majority in principal
                  amount of all bonds then outstanding hereunder."

     SECTION  17.  The  Trustee  hereby  accepts  the trusts  herein  described,
provided  and  created  and  agrees  to  perform  the same  upon the  terms  and
conditions  herein and in the Original Mortgage set forth and upon the following
terms and conditions:

     The  recitals  contained  herein  and in the  bonds  shall  be taken as the
statements  of the  Company and the Trustee  assumes no  responsibility  for the
correctness of the same. The Trustee makes no  representations as to validity or
adequacy of the security  afforded  hereby,  or as to the validity of this Third
Supplemental Indenture or of the bonds or coupons issued hereunder.

     SECTION 18.  Whenever in this Third  Supplemental  Indenture  either of the
parties hereto is named or referred to, this shall, subject to the provisions of
Article XVII of the Original  Mortgage,  be deemed to include the  successors or
assigns  of such  party,  and all the  covenants  and  agreements  in this Third
Supplemental  Indenture  contained by or on behalf of the  Company,  or by or on
behalf  of the  Trustee,  shall,  subject  as  aforesaid,  bind and inure to the
benefit of the  respective  successors  and assigns of such parties,  whether so
expressed or not.

     SECTION 19.  Nothing in this Third  Supplemental  Indenture,  expressed  or
implied,  is intended or shall be construed  to confer upon,  or to give to, any
person,  co-partnership  or  corporation,  other than the parties hereto and the
holders of the bonds and  coupons  outstanding  under the  Mortgage,  any right,
remedy, or claim under or by reason of this Third Supplemental  Indenture or any
covenant, condition or stipulation hereof; and all the covenants,  stipulations,
promises and agreements in this Third Supplemental  Indenture contained by or on
behalf of the Company shall be for the sole and exclusive benefit of the parties
hereto and of the holders of the bonds and of the coupons  outstanding under the
Mortgage.

     SECTION 20. The Company  covenants  that all of the terms,  provisions  and
conditions of the Original Mortgage shall be applicable to the 1974 Bonds issued
hereunder,  except as herein otherwise provided and except in so far as the same
may be inconsistent with the provisions of this Third Supplemental Indenture.

     SECTION 21. This Third Supplemental Indenture is dated as of April 1, 1949,
although executed and delivered on the date of the acknowledgement hereof by the
Trustee; and shall be simultaneously  executed in several counterparts,  and all
such counterparts executed and delivered,  each as an original, shall constitute
but one and the same instrument.

     IN WITNESS WHEREOF,  INDIANAPOLIS POWER & LIGHT COMPANY, party of the first
part, has caused its corporate name to be hereunto  affixed and this  instrument
to be signed and  acknowledged  by its  President or a  Vice-President,  and its
corporate  seal  to be  hereto  affixed  and  attested  by its  Secretary  or an
Assistant Secretary, for and in its behalf, and AMERICAN NATIONAL BANK AND TRUST
COMPANY OF CHICAGO,  party of the second part,  has caused its corporate name to
be hereunto  affixed and this instrument to be signed and acknowledged by one of
its Vice-Presidents, and its corporate seal to be hereto affixed and attested by
its Assistant Secretary, all as of the day, month and year first above written.

                                            INDIANAPOLIS POWER & LIGHT COMPANY,


                                            By: /s/D. C. Hess,
                                                        Vice-President

Attest:

         /s/Ralph W. Husted,
                Assistant Secretary

(CORPORATE SEAL)


                                            AMERICAN NATIONAL BANK AND TRUST
                                            COMPANY OF CHICAGO,


                                            By: /s/L. W. Fischer,
                                                        Vice-President

Attest:

         /s/E. C. Dovale,
                Assistant Secretary.


(CORPORATE SEAL)

<PAGE>

STATE OF INDIANA  )
                  )  SS.:
COUNTY OF MARION  )

     On this 11h day of May, in the year 1949, before me, a Notary Public in and
for the County and State aforesaid,  personally came D. C. Hess, Vice-President,
and Ralph W. Husted, Assistant Secretary, of Indianapolis Power & Light Company,
one  of  the  corporations   described  in  and  which  executed  the  foregoing
instrument,  to me  personally  known  and  known  to me  personally  to be such
Vice-President and Assistant Secretary,  respectively. Said D. C. Hess and Ralph
W. Husted being by me  severally  duly sworn did depose and say that the said D.
C. Hess resides in the City of Indianapolis,  Marion County,  Indiana,  and that
the said Ralph W. Husted  resides in the City of  Indianapolis,  Marion  County,
Indiana;  that said D. C. Hess is  Vice-President  and said  Ralph W.  Husted is
Assistant  Secretary of said  Indianapolis  Power & Light Company;  that each of
them knows the corporate seal of said corporation; that the seal affixed to said
instrument and bearing the name of said corporation is such corporate seal; that
it was so affixed by order of the Board of  Directors of said  corporation;  and
that  each of them  signed  his name  thereto  by like  order;  and each of them
acknowledged  the execution of said instrument on behalf of said  corporation to
be his free and  voluntary  act and deed and the free and voluntary act and deed
of said corporation, for the uses and purposes therein set forth.

     IN WITNESS  WHEREOF,  I have  hereunto  set my hand and affixed my official
seal this 11th day of May, 1949.

                                                Harold B. Johnson,
                                                        Notary Public

My Commission Expires:
   Sept. 17, 1959.                                               (NOTARIAL SEAL)

<PAGE>


STATE OF ILLINOIS )
                  ) SS.:
COUNTY OF COOK    )

     On this 11th day of May,  in the year 1949,  before me, a Notary  Public in
and for  the  County  and  State  aforesaid,  personally  came  L.  W.  Fischer,
Vice-President,  and A. H. Morstadt,  Assistant Secretary,  of American National
Bank and Trust  Company of Chicago,  one of the  corporations  described  in and
which executed the foregoing instrument,  to me personally known and known to me
personally to be such Vice-President and Assistant Secretary, respectively. Said
L. W. Fischer and A. H. Morstadt being by me severally duly sworn did depose and
say  that the  said L. W.  Fischer  resides  in the  City of  Chicago,  State of
Illinois,  and that the said A. H. Morstadt  resides in the Village of Elmhurst,
State of  Illinois;  that said L. W.  Fischer is  Vice-President  and said A. H.
Morstadt is Assistant Secretary of said American National Bank and Trust Company
of Chicago; that each of them knows the corporate seal of said corporation; that
the seal affixed to said instrument and bearing the name of said  corporation is
such  corporate  seal;  that it was so  affixed  by  authority  of the  Board of
Directors of said corporation;  and that each of them signed his name thereto by
like authority;  and each of them  acknowledged the execution of said instrument
on behalf of said  corporation to be his free and voluntary act and deed and the
free and voluntary act and deed of said  corporation,  for the uses and purposes
therein set forth.

     IN WITNESS  WHEREOF,  I have  hereunto  set my hand and affixed my official
seal this 11th day of May, 1949.

                                                        Ruth V. Baumgartner,
                                                                Notary Public

My Commission Expires:
         December 21, 1949.


(NOTARIAL SEAL)
<PAGE>
<TABLE>
<CAPTION>

                                    RECORDING DATA

                             Third Supplemental Indenture
                               dated as of April 1, 1949

------------------- ---------------------------- ---------------------------------- ------------- -------------- ---------------
County              Instrument                   Record                             Page          Instrument     Recording Date
                                                                                                  No.
------------------- ---------------------------- ---------------------------------- ------------- -------------- ---------------
<S>                 <C>                          <C>                                <C>           <C>            <C>
Marion              Real Estate Mortgage         Mortgage Record 1505               66            26946          5-12-49
------------------- ---------------------------- ---------------------------------- ------------- -------------- ---------------
                    Chattel Mortgage             Chattel Minute Record 99           146           26947          5-12-49
------------------- ---------------------------- ---------------------------------- ------------- -------------- ---------------
Hendricks           Real Estate Mortgage         Mortgage Record 122                154           5544           5-12-49
------------------- ---------------------------- ---------------------------------- ------------- -------------- ---------------
                    Chattel Mortgage             Chattel Minute Record 8            138           5545           5-12-49
------------------- ---------------------------- ---------------------------------- ------------- -------------- ---------------
Morgan              Real Estate Mortgage         Mortgage Record 92                 255           2043           5-12-49
------------------- ---------------------------- ---------------------------------- ------------- -------------- ---------------
                    Chattel Mortgage             Chattel Minute Record 36           306           2044           5-12-49
------------------- ---------------------------- ---------------------------------- ------------- -------------- ---------------
Johnson             Real Estate Mortgage         Mortgage Record 95                 427           13231          5-12-49
------------------- ---------------------------- ---------------------------------- ------------- -------------- ---------------
                    Chattel Mortgage             Chattel Minute Record 8            214           13230          5-12-49
------------------- ---------------------------- ---------------------------------- ------------- -------------- ---------------
Hamilton            Real Estate Mortgage         Mortgage Record 103                311           0846           5-12-49
------------------- ---------------------------- ---------------------------------- ------------- -------------- ---------------
                    Chattel Mortgage             Chattel Minute Record 3            284           0847           5-12-49
------------------- ---------------------------- ---------------------------------- ------------- -------------- ---------------
Boone               Real Estate Mortgage         Mortgage Record 115                73            2868           5-12-49
------------------- ---------------------------- ---------------------------------- ------------- -------------- ---------------
                    Chattel Mortgage             Chattel Minute Record 12           18            2869           5-12-49
------------------- ---------------------------- ---------------------------------- ------------- -------------- ---------------
Hancock             Real Estate Mortgage         Mortgage Record 84                 279           11387          5-12-49
------------------- ---------------------------- ---------------------------------- ------------- -------------- ---------------
                    Chattel Mortgage             Chattel Minute Record 9            ----          11388          5-12-49
------------------- ---------------------------- ---------------------------------- ------------- -------------- ---------------
Pike                Real Estate Mortgage         Mortgage Record 27                 52            1443           5-12-49
------------------- ---------------------------- ---------------------------------- ------------- -------------- ---------------
                    Chattel Mortgage             Chattel Minute Record 4            244           1444           5-12-49
------------------- ---------------------------- ---------------------------------- ------------- -------------- ---------------
Sullivan            Real Estate Mortgage         Mortgage Record 119                ----          81739          5-12-49
------------------- ---------------------------- ---------------------------------- ------------- -------------- ---------------
                    Chattel Mortgage             Chattel Minute Record 8            220           81740          5-12-49
------------------- ---------------------------- ---------------------------------- ------------- -------------- ---------------
Gibson              Real Estate Mortgage         Mortgage Record 153                28            8373           5-12-49
------------------- ---------------------------- ---------------------------------- ------------- -------------- ---------------
                    Chattel Mortgage             Chattel Minute Record 8            10            8374           5-12-49
------------------- ---------------------------- ---------------------------------- ------------- -------------- ---------------


</TABLE>
<PAGE>

                                                                   Exhibit 4.4.2

================================================================================




                       INDIANAPOLIS POWER & LIGHT COMPANY


                                       TO


                        AMERICAN NATIONAL BANK AND TRUST
                               COMPANY OF CHICAGO
                                                        TRUSTEE


                                  _____________


                          Tenth Supplemental Indenture

                                  _____________

                           Dated as of October 1, 1960


                       ESTABLISHING FIRST MORTGAGE BONDS,
                             4 5/8% SERIES, DUE 1990



================================================================================


<PAGE>
                               TABLE OF CONTENTS*
                                       of
                          TENTH SUPPLEMENTAL INDENTURE
                                       of
                       INDIANAPOLIS POWER & LIGHT COMPANY

                                                                            Page

PARTIES.....................................................................  1

RECITALS....................................................................  1

SEC. 1   Granting clauses...................................................  3

            Part I  Real property in the County of Marion...................  3

            Part II  Electric Distributing Systems..........................  7

            Part III  Steam and Hot Water Distributing Systems..............  8

            Part IV  Indeterminate Permits and Franchises...................  8

            Part V  Other Property..........................................  8

         General and after-acquired property................................  9

SEC. 2   Designation of tenth series of bonds and kinds and
            denominations thereof........................................... 10

         Designation of American National Bank and
            Trust Company of Chicago as paying agent........................ 10

         Procedure for exchanges of bonds................................... 11

         Registration and transfer of bonds................................. 12

         Series limited to $12,000,000...................................... 12

SEC. 3   Form of coupon bonds............................................... 12

         Form of April coupon............................................... 18

         Form of October coupon............................................. 18

         Form of fully registered bond...................................... 19

         Form of Trustee's certificate on all bonds......................... 24

SEC. 4   Temporary bonds.................................................... 24

SEC. 5   Sinking Fund provided for this Series.............................. 24

SEC. 6   Annual payments for Maintenance and Improvement Fund............... 26

SEC. 7   Compliance with Section 47 of Original Mortgage with respect to
            dividend restrictions........................................... 26

SEC. 8   Condition of redemption prior to October 1, 1965................... 26

SEC. 9   Use of facsimile signatures........................................ 26

SEC. 10  Acceptance of trusts by Trustee and conditions of acceptance....... 27

SEC. 11  Successors and assigns............................................. 27

SEC. 12  Limitation of rights hereunder..................................... 27

SEC. 13  Compliance with terms, provisions and conditions of Mortgage....... 28

SEC. 14  Execution in counterparts.......................................... 28

TESTIMONIUM................................................................. 28

SIGNATURES AND SEALS........................................................ 28

ACKNOWLEDGMENTS............................................................. 29
--------
*    Table of  Contents  is not part of the  Tenth  Supplemental  Indenture  and
     should not be considered  as such. it is included  herein only for purposes
     of convenient reference.
<PAGE>

        THIS TENTH SUPPLEMENTAL INDENTURE,  dated as of October 1, 1960, between
INDIANAPOLIS  POWER & LIGHT  COMPANY,  a  corporation  of the State of  Indiana,
hereinafter  sometimes  called  the  "Company",  party of the  first  part,  and
AMERICAN  NATIONAL  BANK AND  TRUST  COMPANY  OF  CHICAGO,  a  national  banking
association,  hereinafter  sometimes  called the "Trustee",  party of the second
part;

        WHEREAS,  the  Company  by a  Mortgage  and Deed of  Trust  (hereinafter
sometimes  called the "Original  Mortgage" when referred to as existing prior to
any supplement thereto, and the "Mortgage" when referred to as now or heretofore
supplemented)  dated as of May 1, 1940, made to said American  National Bank and
Trust Company of Chicago,  as Trustee, to secure the payment of the bonds issued
from time to time under the  Mortgage  for the  purposes  of and  subject to the
limitations  specified in the  Mortgage,  and to secure the  performance  of the
covenants  therein  contained,  conveyed to the Trustee  thereunder upon certain
trusts,  terms and  conditions,  and with and  subject to certain  provisos  and
covenants  therein  contained,  all  and  singular  the  property,   rights  and
franchises which the Company then owned or should thereafter acquire,  excepting
the property  expressly  excepted by the terms of the  Original  Mortgage or any
indenture  supplemental  thereto, to which Mortgage reference is hereby made for
greater certainty; and

        WHEREAS,  the Original  Mortgage has been  supplemented  by supplemental
indentures dated as of May 1, 1942, as of February 1, 1948, as of April 1, 1949,
as of October 1, 1949,  as of February 1, 1951,  as of March 1, 1953, as of June
1, 1956 and as of March 1, 1958; and

        WHEREAS,  Section 8 of the Original  Mortgage  provides that the form of
each series of bonds (other than the 3 1/4% Series,  due 1970) issued thereunder
and of the coupons to be attached to the coupon bonds of such  series,  shall be
established by an indenture supplemental thereto authorized by resolution of the
Board  of  Directors  of the  Company,  and that  the  form of each  series,  as
established by the Board of Directors,  shall specify the  descriptive  title of
the bonds and  various  other terms  thereof,  and may also  contain  such other
provisions  as the  Board  of  Directors  may,  in its  discretion,  cause to be
inserted therein  expressing or referring to the terms and conditions upon which
such bonds are to be issued  and  secured  under the  Original  Mortgage  or any
indenture supplemental thereto; and

        WHEREAS,   the  Company  now  desires  to  provide  for  the   creation,
establishment,  execution,  authentication,  delivery  and  issuance  under  the
Mortgage  of bonds of a series to be entitled  and  designated  "First  Mortgage
Bonds,  4 5/8% Series,  due 1990" (the bonds of said  series  being  hereinafter
sometimes  referred  to as "1990  Bonds"),  limited to the  aggregate  principal
amount of $12,000,000; and

        WHEREAS,  all  things  necessary  to make  the  1990  Bonds  hereinafter
described, when duly executed and issued by the Company and authenticated by the
Trustee,  valid,  binding and legal obligations of the Company, and to make this
Tenth Supplemental  Indenture a valid and binding agreement  supplemental to the
Original Mortgage, have been done and performed; and

        WHEREAS,  the  execution  and  delivery  by the  Company  of this  Tenth
Supplemental  Indenture,  and the  terms  of the  1990  Bonds,  have  been  duly
authorized by the Board of Directors of the Company by  appropriate  resolutions
of said Board; and

        WHEREAS, it is provided in and by the Original Mortgage that the Company
will execute and deliver such  further  instruments  and do such further acts as
may be  necessary  or proper to carry out more  effectually  the purposes of the
Mortgage,  and to make  subject  to the lien  thereof  any  property  thereafter
acquired and intended to be subject to the lien thereof; and

        WHEREAS,  the Company has,  since the date of execution  and delivery of
the Original  Mortgage,  purchased and acquired the  properties  and  franchises
hereinafter  described  and  desires by this  Tenth  Supplemental  Indenture  to
specifically  convey to the Trustee such property and  franchises for the better
protection  and security of the bonds issued and to be issued under the Original
Mortgage, or any indenture supplemental thereto;

        NOW, THEREFORE,  THIS INDENTURE WITNESSETH that, in consideration of the
premises and of the  acceptance  or purchase of the 1990 Bonds by the holders or
registered  owners  thereof,  and of the sum of one dollar,  lawful money of the
United  States of America,  to the Company duly paid by the Trustee at or before
the execution  and delivery of this Tenth  Supplemental  Indenture,  the receipt
whereof is hereby acknowledged, the Company and the Trustee, respectively,  have
entered into, executed and delivered this Tenth Supplemental Indenture,  for the
uses and purposes hereinafter expressed, that is to say:

        SECTION 1. The Company has granted, bargained, sold, released, conveyed,
assigned, transferred,  mortgaged, pledged, set over and confirmed, and by these
presents does grant, bargain, sell, release, convey, assign, transfer, mortgage,
pledge,  set over and confirm (subject,  however,  to permitted  encumbrances as
defined in the Original  Mortgage),  unto said American  National Bank and Trust
Company of Chicago,  as Trustee,  as herein provided,  and its successors in the
trusts declared in the Original Mortgage and herein, all of the property,  real,
personal  and mixed,  tangible  and  intangible,  of every kind,  character  and
description  which the Company has acquired  since the execution and delivery of
the  Original  Mortgage and now owns  (except  property,  rights and assets of a
character  similar to the property  that is excluded from the lien and operation
of the  Mortgage  by  the  Granting  Clauses  of the  Original  Mortgage,  which
property,  rights and assets are  excluded  from the lien and  operation  of the
Mortgage only to the extent provided  therein),  including but without otherwise
limiting the generality of the foregoing, the following described properties all
located within the State of Indiana:


                                     PART I.

                     REAL PROPERTY IN THE COUNTY OF MARION.

        All the right, title and interest of the Company in and to the following
described  and numbered  parcels or tracts of land acquired by the Company after
May 1, 1940, the date of the Original Mortgage,  situate in the County of Marion
in the State of Indiana, and not described in any prior supplemental  indenture,
together with all buildings, structures, improvements,  machinery, and equipment
of every  description now or hereafter  affixed thereto or stationed  thereon or
appertaining thereto, to wit:

                                   PARCEL #212

        Lot numbered  twenty (20) in Murphy and Tinker's  Corrected  Addition to
the City of  Indianapolis,  the plat of which is  recorded  in Flat Book 3, page
126, in the office of the Recorder of Marion County, Indiana.

                                   PARCEL #213

        Lot Number Twenty-one (21) in Murphy and Tinker's  Corrected Addition to
the City of  Indianapolis,  the plat of which is  recorded  in Flat Book 8, page
126, in the office of the Recorder of Marion County, Indiana.

                                   PARCEL #214

        Lots 10, 11 and 12 in Temple C. Harrisons Subdivision of Lots 92, 93, 94
and 95 of  Albert  E.  and  Ingram  Fletchers  Oak  Hill  Suburb  to the City of
Indianapolis,  as  recorded  in Plat  Book 4,  page  146,  in the  office of the
Recorder of Marion County, Indiana.

                                   PARCEL #215

        Part of the  West  Half of the East  Half of the  Northwest  Quarter  of
Section 34, Township 16 North, Range 2 East, of the Second Principal Meridian in
Marion County, Indiana, more particularly described as follows, to wit:

        Beginning  in the North line of said  Quarter  Section,  at a point 81.6
feet East of the  Northwest  corner of said Half Half Quarter  Section;  running
thence East upon and along the North line of said Quarter Section,  81.6 feet to
a point;  thence South and parallel with the West line of said Half Half Quarter
Section,  890.98 feet to a point; thence West 81.6 feet to a point; thence North
and parallel  with said Half Half Quarter  Section,  390.49 feet to the place of
beginning, containing 0.73 acres, more or less.

                                   PARCEL #216

        Part of the southeast  quarter of Section 5, Township 16 north,  Range 3
east,  commencing at the southwest  corner of said quarter  section (said corner
being in the east line of the right of way of the C.C.C. & St. L. Railroad,  now
the New York Central Railroad), thence north along the west line of said quarter
1400 feet;  thence east  parallel  with the south line of said quarter 500 feet;
thence south  parallel with the west line of said quarter 1400 feet to the south
line of said quarter; thence west along said south line 500 feet to the place of
beginning, containing 16.1 acres, more or less.

                                   PARCEL #217

        Part of the southwest quarter of Section 13, Township 17 North,  Range 3
East,  commencing  at the  southwest  corner  of the  northeast  quarter  of the
northeast  quarter of said quarter section,  thence south parallel with the east
line of said  quarter  section  710.82 feet;  thence east and parallel  with the
north line of said  quarter  section  666 feet to the east line of said  quarter
section; thence north along the east line of said quarter section 710.82 feet to
the southeast corner of the northeast  quarter of the northeast  quarter of said
quarter  section;  thence  west  parallel  with the north  line of said  quarter
section 666 feet to the place of  beginning,  excepting  therefrom  the railroad
right  of way  along  the  entire  east  side  and  containing,  excluding  said
exception, 10.328 acres.

                                   PARCEL #218

        The northeast  quarter of the northeast quarter of the southwest quarter
of Section 13, Township 17 North,  Range 3 East of the Second Principal Meridian
in Marion County, Indiana,  containing 10 acres more or less. Subject,  however,
to any highways, railroad rights of way or any other legal rights of way.

                                   PARCEL #219

        Part of the east hail of the northwest quarter,  Section 34, Township 16
North, Range 2 East,  beginning at the northwest corner of said east half of the
northwest  quarter;  thence  south on the  west  line of said  east  half of the
northwest  quarter 390 feet; thence east 81.6 feet; thence north parallel to the
west line of said east half of the northwest  quarter  390.49 feet;  thence west
81.6 feet to the point of beginning.

                                   PARCEL #220

        80 feet by parallel lines off the east end of Lot 53 and 80 feet off the
east end of the south 10 feet of Lot 54,  all in Ruddel and  Vintons  Park Place
Addition to the City of  Indianapolis,  as recorded in Plat Book 4, page 190, in
the office of the Recorder of Marion County, Indiana.

                                  PARCEL #221

        80 feet by  parallel  lines  off the east end of Lot 104 in  Ruddel  and
Vintons  Park Place  Addition to the City of  Indianapolis,  as recorded in Plat
Book 4, page 190, in the office of the Recorder of Marion County, Indiana.

                                   PARCEL #222

        A part of the Southeast Quarter of Section 13, Township 17 North,  Range
3 East, Marion County, Indiana, more particularly described as follows, to-wit:

        Beginning  at a point on the North  line of the said  Southeast  Quarter
Section,  said  point  being  33.0 feet East of the  Northwest  corner  thereof;
running  thence East on and along the North line of the said  Southeast  Quarter
Section a distance of 363.45 feet to a point;  thence  deflecting  90 degrees 05
minutes to the right in a  southward  direction  a distance  of 375.73 feet to a
point, said point being in the center of a 100.0 foot electric easement;  thence
deflecting 89 degrees 21 minutes to the right in a westward direction and on the
center of said electric  easement and also the center of said easement  produced
westward a distance of 359.42  feet to a point;  said point being 33.0 feet East
of the West line of the said Southeast Quarter Section, said point also being on
the East right of way line of the Monon Railroad  Company;  running thence North
on and along  the East  right of way line of said  Monon  Railroad  Company  and
parallel to the West line of the said  Southeast  Quarter  Section a distance of
379.31 feet to the point or place of  beginning.  Containing in all 3.132 acres,
more or less.

        Also  beginning  at a point,  said point being  375.73 feet South of the
North line and  392.42  feet East of the West line of the  Southeast  Quarter of
said Section,  said point being in the center of a 100.0 feet electric easement;
running  thence West on and along the center of said  electric  easement and the
center of said easement  produced  westward a distance of 359.42 feet to a point
in the East  right of way line of the Monon  Railroad  Company,  said point also
being  33.0 feet East of the West line of the said  Southeast  Quarter  Section;
running thence South and parallel to the West line of the said Southeast Quarter
Section  and on the East  right of way line of said  Monon  Railroad  Company  a
distance of 50.0 feet to a point;  running  thence East on the South line of the
aforesaid  electric  easement  produced  westward  and on the South line of said
electric  easement a distance of 358.86 feet to a point;  thence  deflecting  89
degrees 21 minutes to the left in a northward  direction a distance of 50.0 feet
to the point or place of beginning. Containing in all 0.412 acres, more or less.

        Both of said tracts being  subject to the  restriction  that no electric
substation shall be erected thereon.

                                    PART II.

                         ELECTRIC DISTRIBUTING SYSTEMS.

        All electric  distributing  systems of the Company  acquired by it after
May 1, 1940, the date of the Original  Mortgage,  and located in the Counties of
Marion, Boone, Hamilton, Hancock, Hendricks,  Morgan, Shelby, and Johnson, State
of Indiana;  and any  additions to or extensions of any such plants and systems,
together with the buildings,  erections,  structures,  transmission lines, power
stations,   sub-stations,   engines,  boilers,   condensers,   pumps,  turbines,
machinery,  tools,  conduits,  manholes,  insulators,  dynamos,  motors,  lamps,
cables,  wires,  poles,  towers,  cross-arms,   piers,  abutments,   switchboard
equipment,  meters, appliances,  instruments,  apparatus,  appurtenances,  maps,
records, ledgers, contracts,  facilities and other property or equipment used or
provided for use in connection with the  construction,  maintenance,  repair and
operation   thereof;   together  also  with  all  of  the  rights,   privileges,
rights-of-way,  franchises, licenses, grants, liberties, immunities, ordinances,
permits  and   easements  of  the  Company  in  respect  of  the   construction,
maintenance, repair and operation of said plants and systems.

                                    PART III.

                    STEAM AND HOT WATER DISTRIBUTING SYSTEMS.

        All the steam and hot water distributing systems acquired by the Company
after May 1, 1940, the date of the Original Mortgage, and located in the City of
Indianapolis,  Marion County, Indiana, and any additions to or extensions of any
such plants and systems;  together with the  buildings,  erections,  structures,
boilers, heaters, engines, tanks, pipe lines, mains, connections, service pipes,
meters, tools, instruments,  appliances,  apparatus,  facilities,  machinery and
other  property  and  equipment  used or provided  for use in the  construction,
maintenance,  repair and  operation  thereof;  and together also with all of the
rights,  privileges,  rights-of-way,  franchises,  licenses,  grants, liberties,
immunities,  ordinances,  permits and easements of the Company in respect of the
construction, maintenance, repair and operation of said plants and systems.

                                    PART IV.

                      INDETERMINATE PERMITS AND FRANCHISES.

        All indeterminate permits, franchises,  ordinances,  licenses, and other
authorizations by or from any state, county, municipality, or other governmental
authority,  acquired by the Company after May 1, 1940,  the date of the Original
Mortgage, including particularly,  but not limited to, any indeterminate permits
under the Public Service  Commission  Act of the State of Indiana,  and all Acts
amendatory thereof and supplemental  thereto,  and all right, title and interest
therein now owned by the Company, and all renewals, extensions and modifications
of said  indeterminate  permits,  franchises,  ordinances,  licenses,  and other
authorizations,  and  of  the  indeterminate  permits,  franchises,  ordinances,
licenses,  and  other  authorizations  referred  to in Part VII of the  Granting
Clauses of the Original Mortgage.

                                     PART V.

                                 OTHER PROPERTY.

        All other property,  whether real,  personal or mixed (except any in the
Mortgage expressly excepted), now owned by the Company and wheresoever situated,
including  (without in anywise  limiting or impairing by the  enumeration of the
same the  scope  and  intent  of the  foregoing  or of any  general  description
contained in the  Mortgage) all lands,  flowage  rights,  water rights,  flumes,
raceways,  dams,  rights-of-way  and roads;  all plants  for the  generation  of
electricity by water, steam and/or other power, power houses, telephone systems,
water  systems,  steam heat and power plants,  hot water  plants,  sub-stations,
transmission  lines,  distribution  systems,  bridges,  culverts and tracks; all
offices,  buildings and structures,  and the equipment  thereof;  all machinery,
engines,  boilers,  dynamos,   machines,   regulators,   meters,   transformers,
generators and motors;  all appliances  whether  electrical,  gas or mechanical,
conduits,  cables and lines; all pipes whether for water,  steam heat and power,
or other  purposes;  all mains and pipes,  service pipes,  fittings,  valves and
connections, poles, wires, tools, implements, apparatus, furniture and chattels;
all municipal  franchises,  indeterminate  permits, and other permits; all lines
for the  transportation,  transmission  and/or distribution of electric current,
steam heat and power or water for any purpose,  including towers,  poles, wires,
cables, pipes,  conduits and all apparatus for use in connection therewith;  all
real estate,  lands,  leases,  leaseholds;  all contracts,  whether heat, light,
power, water or street lighting contracts; all easements,  servitudes, licenses,
permits, rights, powers, franchises, privileges,  rights-of-way and other rights
in or  relating  to real  estate or the  occupancy  of the same and  (except  as
hereinafter  or in the Mortgage  expressly  excepted)  all the right,  title and
interest  of the  Company  in and to all  other  property  of any kind or nature
appertaining  to and/or used and/or  occupied  and/or enjoyed in connection with
any property hereinbefore described or referred to;

        TOGETHER  WITH  all  and  singular  the  tenements,   hereditaments  and
appurtenances belonging or in any wise appertaining to the aforesaid property or
any part thereof,  with the reversion and  reversions,  remainder and remainders
and  (subject to the  provisions  of Section 64 of the Original  Mortgage),  the
tolls, rents, revenues,  issues, earnings, income, products and profits thereof,
and all the estate,  right,  title and interest and claim whatsoever,  at law as
well as in equity,  which the Company now has or may hereafter acquire in and to
the aforesaid property,  indeterminate permits and franchises and every part and
parcel thereof.

        SECTION 2. There shall be and is hereby created and established a series
of bonds,  limited in aggregate  principal  amount to $12,000,000,  to be issued
under and secured by the Mortgage, to be designated  "4 5/8% Series,  due 1990",
each of which shall also bear the descriptive  title "First Mortgage Bond"; said
bonds shall  mature on October 1, 1990,  and shall be issued as coupon  bonds in
the denomination of One thousand  dollars,  registrable as to principal,  and as
fully  registered bonds in denominations of One thousand dollars or any multiple
thereof;  they shall bear  interest  from October 1, 1960, in the case of coupon
bonds,  and from the beginning of the current  interest period during which each
fully  registered  bond is dated in the case of fully  registered  bonds, at the
rate per annum designated in the title thereof, payable semi-annually,  on April
1, and  October 1 of each year;  and the  principal  of,  premium,  if any,  and
interest on each said bond shall be payable in lawful money of the United States
of  America  at the  office  or agency of the  Company  in the City of  Chicago,
Illinois.

        American National Bank and Trust Company of Chicago is hereby designated
and  appointed  the  office  and agency of the  Company  for the  payment of the
principal  of,  premium,  if any, and interest on the 1990 Bonds;  all reference
herein to the office or agency of the Company  for the payment of the  principal
of,  premium,  if any,  and  interest  on the 1990 Bonds  being a  reference  to
American National Bank and Trust Company of Chicago. In event of the resignation
or inability to act of American National Bank and Trust Company of Chicago, then
a  successor  paying  agent or agents  in the City of  Chicago,  Illinois,  with
respect to the  principal of,  premium,  if any, and interest on the 1990 Bonds,
shall be appointed by the Board of Directors of the Company.

        1990  Bonds in  coupon  form  shall  be dated  October  1,  1960.  Fully
registered bonds of said series shall be dated as of the date of authentication,
except as otherwise provided in Section 10 of the Original Mortgage.

        Upon the notice and in the  manner and with the effect  provided  in the
Mortgage and in this Section 2, the 1990 Bonds shall be redeemable  prior to the
maturity  thereof,  as a whole at any time or in part from time to time,  at the
option of the Company,  at the principal  amount thereof and accrued interest to
the date of  redemption,  together  with a premium  equal to a percentage of the
principal  amount  thereof  set forth  under  the  heading  "Regular  Redemption
Premium" in the form of 1990 Bonds hereinafter  recited,  if redeemed  otherwise
than  through the  operation  of the Sinking Fund created for the benefit of the
1990 Bonds by Section 5 of this Tenth Supplemental  Indenture, or otherwise than
by the  application  of  monies  deposited  with the  Trustee  representing  the
proceeds of mortgaged and pledged property taken by the exercise of the power of
eminent  domain or  otherwise  as provided  in  paragraph B of Section 69 of the
Mortgage,  provided,  however,  that prior to October 1, 1965,  none of the 1990
Bonds may be  redeemed,  directly  or  indirectly,  from the  proceeds  of or in
anticipation  of any refunding  operation  involving the incurring of debt which
has an  interest  rate or cost  to the  Company,  computed  in  accordance  with
generally accepted financial  practice,  of less than the interest rate borne by
the 1990 Bonds.

        Upon the notice and in the  manner and with the effect  provided  in the
Mortgage  and in this  Section  2, the 1990  Bonds  shall be  redeemable  by the
Company  prior to the maturity  thereof,  as a whole at any time or in part from
time to time,  through the operation of the Sinking Fund created for the benefit
of the 1990 Bonds by Section 5 of this Tenth Supplemental  Indenture,  or out of
monies  deposited  with the Trustee  representing  the proceeds of mortgaged and
pledged  property  taken by the  exercise  of the  power of  eminent  domain  or
otherwise  as provided  in  paragraph  B of Section 69 of the  Mortgage,  at the
principal  amount of the 1990 Bonds so to be redeemed,  together  with a premium
equal to the  percentage  of such  principal  amount set forth under the heading
"Special Redemption Premium" in the form of 1990 Bonds hereinafter recited.

        The notice  required for the  redemption of the 1990 Bonds shall include
at least  thirty (80) days'  published  notice (such  publication  to be made at
least once in each of four (4) successive calendar weeks upon any secular day of
each such week, which need not be the same day in each week).

        At the  option  of the  holder,  any 1990  Bonds in  coupon  form,  upon
surrender  thereof with all unmatured coupons and any matured coupons in default
appertaining  thereto  at the  office or agency  of the  Company  in the City of
Chicago,  Illinois,  shall be exchangeable for a like aggregate principal amount
of fully registered bonds of the same series of authorized denominations. At the
option of the registered  holder, any fully registered 1990 Bond, upon surrender
thereof  at said  office  or  agency  of the  Company  together  with a  written
instrument  of transfer in form  approved  by the Company  duly  executed by the
registered holder or by his duly authorized attorney,  shall be exchangeable for
a like aggregate  principal amount of coupon bonds of the same series,  with all
unmatured  coupons and any matured  coupons in default  attached,  or for a like
aggregate principal amount of fully registered bonds of the same series of other
authorized denominations.

        The  holder  of any 1990  Bond in  coupon  form  nay have the  ownership
thereof  registered as to principal on the books of the Company at the office or
agency of the Company in the City of Chicago,  Illinois,  and such  registration
noted on such bond.  After such  registration  no transfer of such bond shall be
valid unless made at said office or agency by `the  registered  holder in person
or by his duly  authorized  attorney and similarly  noted on such bond;  but the
same may be discharged from registration by being in like manner  transferred to
bearer and thereupon  transferability  by delivery  shall be restored;  but such
bond may  again  from time to time be  registered  or  transferred  to bearer in
accordance  with the above  procedure.  Such  registration,  however,  shall not
affect the  negotiability  of the coupons  appertaining to such bonds, but every
such coupon  shall  continue  to be  transferable  by delivery  merely and shall
remain payable to bearer. Fully registered 1990 Bonds shall also be transferable
on the books of the  Company  at said  office or  agency of the  Company  by the
registered holder thereof,  in person or by his duly authorized  attorney,  upon
surrender for cancellation thereof.

        The issue of 1990  Bonds  shall be  limited  to an  aggregate  principal
amount of Twelve Million Dollars ($12,000,000) and shall be made on the basis of
property additions under the provisions of Article VI of the Original Mortgage.

        SECTION 3. Such  coupon 1990 Bonds,  coupons and fully  registered  1990
Bonds, and the Trustee's  certificate thereon,  shall be in the following forms,
respectively:
<PAGE>

                              [FORM OF COUPON BOND]

                       INDIANAPOLIS POWER & LIGHT COMPANY

                   First Mortgage Bond, 4 5/8% Series, due 1990

                               Due October 1, 1990
$1,000                                                            No. _________

        INDIANAPOLIS  POWER & LIGHT  COMPANY,  a  corporation  of the  State  of
Indiana (hereinafter called the Company), for value received, hereby promises to
pay to the  bearer,  or, if this bond be  registered,  to the  registered  owner
hereof,  One Thousand Dollars on October 1, 1990, at the office or agency of the
Company in the City of Chicago,  Illinois,  in lawful money of the United States
of America, and to pay interest thereon from the date hereof at the rate of Four
and  Five-Eighths  per centum per annum in like lawful money,  at said office or
agency on April 1 and  October 1 in each year,  until the  Company's  obligation
with respect to the payment of such principal  shall have been  discharged,  but
only, in the case of interest due on or before maturity,  according to the tenor
and upon  presentation  and surrender of the respective  coupons therefor hereto
attached, as they severally mature. This bond is one of an issue of bonds of the
Company,  issuable in series, and is one of a series known as its First Mortgage
Bonds of the series  designated  in its title,  limited in  aggregate  principal
amount to $12,000,000 and established by a Tenth Supplemental Indenture dated as
of October 1, 1960,  all bonds of all series  issued and to be issued  under and
equally  secured  (except  insofar as any sinking or other fund,  established in
accordance with the provisions of the Mortgage hereinafter mentioned, may afford
additional  security for the bonds of any  particular  series) by a Mortgage and
Deed of Trust,  dated as of May 1, 1940,  executed  by the  Company to  American
National Bank and Trust Company of Chicago,  as Trustee (which Mortgage and Deed
of Trust as supplemented by all supplemental  indentures is hereinafter referred
to as the "Mortgage"),  to which Mortgage reference is made for a description of
the property mortgaged and pledged,  the nature and extent of the security,  the
rights of the  bearers  or  registered  owners of the bonds in  respect  of such
security,  the duties and immunities of the Trustee and the terms and conditions
upon which the bonds are secured.

        With the consent of the Company  and to the extent  permitted  by and as
provided in the Mortgage,  the rights and  obligations  of the Company and/or of
the holders of the bonds and/or  coupons  and/or the terms and provisions of the
Mortgage  and/or of any  instruments  supplemental  thereto  may be  modified or
altered by affirmative  vote of the holders of at least sixty-six and two-thirds
per  centum  (66 2/3%) in  principal  amount  of the  bonds  affected,  by  such
modification or alteration then outstanding under the Mortgage  (excluding bonds
disqualified from voting by reason of the Company's interest therein as provided
in the Mortgage);  provided that no such modification or alteration shall permit
the  extension of the maturity of the principal of this bond or the reduction in
the rate of interest hereon or any other modification in the terms of payment of
such  principal  or  interest  without  the  consent of the holder  hereof.  The
principal  hereof may be  declared  or may become due and  payable  prior to the
stated date of maturity hereof, on the conditions, in the manner and at the time
set forth in the Mortgage,  upon the occurrence of a completed default as in the
Mortgage provided.

        This bond shall pass by delivery  unless  registered  as to principal in
the owner's  name at the office or agency of the Company in the City of Chicago,
Illinois,  and such  registration  noted hereon,  after which no valid  transfer
hereof can be made,  except at such  office or agency,  until  after  registered
transfer to bearer, but after such registered transfer to bearer this bond shall
be again transferable by delivery. Such registration,  however, shall not affect
the  negotiability  of the coupons,  which shall always remain payable to bearer
and transferable by delivery. The Company and the Trustee may deem and treat the
bearer of this bond if it be not registered as to principal, or, if this bond is
registered  as  herein  authorized,  the  person  in  whose  name  the  same  is
registered,  and the bearer of any coupon hereto  appertaining,  as the absolute
owner for the purpose' of receiving payment and for all other purposes.

        The 1990 Bonds are subject to redemption prior to the maturity  thereof,
as a whole  at any  time or in part  from  time to time,  at the  option  of the
Company,  at the  principal  amount of the 1990 Bonds to be redeemed and accrued
interest  to the  date  of  redemption,  together  with  a  premium  equal  to a
percentage  of the  principal  amount  thereof set forth below under the heading
"Regular Redemption Premium" if redeemed otherwise than through the operation of
the Sinking  Fund created for the benefit of the 1990 Bonds by Section 5 of said
Tenth  Supplemental  Indenture,  or otherwise than by the  application of monies
deposited  with the Trustee  representing  the proceeds of mortgaged and pledged
property  taken by the  exercise of the power of eminent  domain or otherwise as
provided in paragraph B of Section 69 of the Mortgage,  provided,  however, that
prior to October  1,1965,  none of the 1990 Bonds may be  redeemed,  directly or
indirectly,  from the proceeds of or in anticipation of any refunding  operation
involving  the  incurring  of debt  which  has an  interest  rate or cost to the
Company,  computed in accordance with generally accepted financial practice,  of
less than the interest rate borne by the 1990 Bonds.

        The 1990 Bonds are subject to redemption prior to the maturity  thereof,
as a whole at any time or in part from time to time,  through the  operation  of
the Sinking  Fund created for the benefit of the 1990 Bonds by Section 5 of said
Tenth  Supplemental  Indenture,  or out of  monies  deposited  with the  Trustee
representing  the  proceeds  of  mortgaged  and  pledged  property  taken by the
exercise of the power of eminent  domain or otherwise as provided in paragraph B
of Section 69 of the Mortgage,  at the principal  amount of the 1990 Bonds so to
be redeemed  and accrued  interest to the date of  redemption,  together  with a
premium equal to the percentage of such  principal  amount set forth below under
the heading "Special Redemption Premium":

             If Redeemed During the                    Regular         Special
              Twelve Months' Period                  Redemption      Redemption
            Ending With the Last Day                   Premium         Premium
               of September of the
                   Year Stated

    1961..........................................      5.85%           1.23%
    1962..........................................      5.65%           1.21%
    1963..........................................      5.45%           1.19%
    1964..........................................      5.25%           1.16%
    1965..........................................      5.04%           1.14%
    1966..........................................      4.84%           1.12%
    1967..........................................      4.64%           1.09%
    1968..........................................      4.44%           1.07%
    1969..........................................      4.24%           1.04%
    1970..........................................      4.04%           1.01%
    1971..........................................      3.83%           0.98%
    1972..........................................      3.63%           0.95%
    1973..........................................      3.43%           0.92%
    1974..........................................      3.23%           0.89%
    1975..........................................      3.03%           0.85%
    1976..........................................      2.83%           0.81%
    1977..........................................      2.63%           0.78%
    1978..........................................      2.42%           0.73%
    1979..........................................      2.22%           0.69%
    1980..........................................      2.02%           0.65%
    1981..........................................      1.82%           0.60%
    1982..........................................      1.62%           0.55%
    1983..........................................      1.42%           0.50%
    1984..........................................      1.21%           0.45%
    1985..........................................      1.01%           0.39%
    1986..........................................      0.81%           0.34%
    1987..........................................      0.61%           0.28%
    1988..........................................      0.41%           0.21%
    1989..........................................      0.21%           0.15%

and without premium in either case if redeemed after September 30, 1989.

        In the  manner  and  upon  payment  of  the  charges  prescribed  in the
Mortgage,  the 1990  Bonds in coupon  form,  upon,  surrender  thereof  with all
unmatured coupons and any matured coupons in default appertaining thereto at the
office  or  agency  of the  Company  in  the  City  of  Chicago,  Illinois,  are
exchangeable for a like aggregate  principal amount of fully registered bonds of
the same  series  of  authorized  denominations,  and in like  manner  any fully
registered  1990 Bonds,  upon surrender  thereof at said office or agency of the
Company,  together with a written instrument of transfer in form approved by the
Company  duly  executed  by the  registered  holder  or by his  duly  authorized
attorney, are exchangeable for a like aggregate principal amount of coupon bonds
of the same  series,  with all  unmatured  coupons  and any  matured  coupons in
default attached,  or for a like aggregate  principal amount of fully registered
bonds of the same series of other authorized denominations.

        No recourse shall be had for the payment of the principal of or interest
on this bond against any incorporator or any past,  present or future subscriber
to the capital stock, stockholder,  officer or director of the Company or of any
predecessor or successor  corporation,  as such,  either directly or through the
Company  or any  predecessor  or  successor  corporation  under any rule of law,
statute or  constitution  or by the  enforcement of any assessment or otherwise,
all such liability of  incorporators,  subscribers,  stockholders,  officers and
directors, as such, being waived and released by the terms of the Mortgage.

        This bond shall not become  obligatory until American  National Bank and
Trust  Company of Chicago,  the Trustee  under the  Mortgage,  or its  successor
thereunder, shall have signed the form of certificate endorsed hereon.

        IN WITNESS WHEREOF,  Indianapolis  Power & Light Company has caused this
bond to be signed in its name by its President or one of its Vice-Presidents, by
his signature or a facsimile  thereof,  and a facsimile of its corporate seal to
be  imprinted  hereon,  attested  by its  Secretary  or  one  of  its  Assistant
Secretaries,  by his  signature or a facsimile  thereof,  and  interest  coupons
`bearing the facsimile signature of its Treasurer to be attached hereto.


     Dated, October 1, 1960.


                                            INDIANAPOLIS POWER & LIGHT COMPANY,


                                            By
                                              --------------------------------
                                                                     President


Attest:



---------------------------------
                        Secretary


                             [FORM OF APRIL COUPON]
$23.13                                                            No. _________

     This coupon  will not be payable if the bond  hereinafter  mentioned  shall
have  previously  become  payable or been  called for  previous  redemption  and
payment duly provided for.

     On April  1,  _________,  INDIANAPOLIS  POWER & LIGHT  COMPANY  will pay to
bearer  upon  surrender  of this  coupon at its  office or agency in the City of
Chicago, Illinois, the amount shown hereon, in lawful money of the United States
of America, being six months' interest then due on its

                        FIRST MORTGAGE BOND, 4 5/8% SERIES
                              DUE OCTOBER 1, 1990.


                                                -------------------------------
                                                                       Treasurer


                            [FORM OF OCTOBER COUPON]
$23.12                                                             No. _________

     This coupon  will not be payable if the bond  hereinafter  mentioned  shall
have  previously  become  payable or been  called for  previous  redemption  and
payment duly provided for.

     On October 1, ______, INDIANAPOLIS POWER & LIGHT COMPANY will pay to bearer
upon  surrender  of this  coupon at its office or agency in the City of Chicago,
Illinois,  the amount  shown  hereon,  in lawful  money of the United  States of
America, being six months' interest then due on its

                        FIRST MORTGAGE BOND, 4 5/8% SERIES
                              DUE OCTOBER 1, 1990.


                                                --------------------------------
                                                                       Treasurer


                         [FORM OF FULLY REGISTERED BOND]

                       INDIANAPOLIS POWER & LIGHT COMPANY

                   First Mortgage Bond, 4 5/8% Series, due 1990

                               Due October 1, 1990

$_________                                                         No. _________

     INDIANAPOLIS  POWER & LIGHT COMPANY,  a corporation of the State of Indiana
(hereinafter called the Company), for value received,  hereby promises to pay to
__________________________  or  registered  assigns,  on October 1, 1990, at the
office  or   agency  of  the   Company   in  the  City  of   Chicago,   Illinois
____________________  Dollars in lawful  money of the United  States of America,
and to pay to the registered owner hereof interest thereon from the first day of
April or the first day of October next  preceding  the date of this bond, at the
rate of Four and Five-Eighths per centum per annum in like lawful money, at said
office or agency on April 1 and  October  1 in each  year,  until the  Company's
obligation  with  respect  to the  payment  of such  principal  shall  have been
discharged.  This bond is one of an issue of bonds of the  Company,  issuable in
series,  and is one of a series known as its First  Mortgage Bonds of the series
designated in its title,  limited in aggregate  principal  amount to $12,000,000
and established by a Tenth  Supplemental  Indenture dated as of October 1, 1960,
all bonds of all  series  issued  and to be issued  under  and  equally  secured
(except insofar as any sinking or other fund, established in accordance with the
provisions of the Mortgage hereinafter mentioned, may afford additional security
for the bonds of any particular  series) by a Mortgage and Deed of Trust,  dated
as of May 1, 1940,  executed by the Company to American  National Bank and Trust
Company of Chicago, as Trustee (which Mortgage and Deed of Trust as supplemented
by all supplemental indentures is hereinafter referred to as the "Mortgage"), to
which Mortgage reference is made for a description of the property mortgaged and
pledged,  the nature and extent of the  security,  the rights of the  bearers or
registered  owners of the bonds in  respect  of such  security,  the  duties and
immunities of the Trustee and the terms and conditions  upon which the bonds are
secured.

     With the  consent  of the  Company  and to the extent  permitted  by and as
provided in the Mortgage,  the rights and  obligations  of the Company and/or of
the holders of the bonds and/or  coupons  and/or the terms and provisions of the
Mortgage  and/or of any  instruments  supplemental  thereto  may be  modified or
altered by affirmative  vote of the holders of at least sixty-six and two-thirds
per  centum  (66 2/3%) in  principal  amount  of  the  bonds  affected  by  such
modification or alteration then outstanding under the Mortgage  (excluding bonds
dis-qualified  from  voting  by  reason of the  Company's  interest  therein  as
provided in the  Mortgage);  provided  that no such  modification  or alteration
shall permit the  extension of the maturity of the principal of this bond or the
reduction in the rate of interest hereon or any other  modification in the terms
of payment of such  principal  or  interest  without  the  consent of the holder
hereof. The principal hereof may be declared or may become due and payable prior
to the stated date of maturity hereof,  on the conditions,  in the manner and at
the time set forth in the Mortgage,  upon the occurrence of a completed  default
as in the Mortgage provided.

     This bond is  transferable  as prescribed in the Mortgage by the registered
owner hereof in person,  or by his duly  authorized  attorney,  at the office or
agency of the  Company in the City of  Chicago,  Illinois,  upon  surrender  and
cancellation  of this  bond and upon  presentation  of a written  instrument  of
transfer,  duly executed,  and upon payment, if the Company shall require it, of
the transfer charges  prescribed in the Mortgage,  and,  thereupon,  a new fully
registered bond of the same series for a like principal amount will be issued to
the transferee in exchange herefor as provided in the Mortgage.  The Company and
the Trustee may deem and treat the person in whose name this bond is  registered
as the absolute  owner  hereof for the purpose of receiving  payment and for all
other purposes.

     The 1990 Bonds are subject to redemption prior to the maturity thereof,  as
a whole at any time or in part from time to time,  at the option of the Company,
at the principal amount of the 1990 Bonds to be redeemed and accrued interest to
the date of  redemption,  together  with a premium  equal to a percentage of the
principal amount thereof set forth below under the heading  "Regular  Redemption
Premium" if redeemed  otherwise  than through the  operation of the Sinking Fund
created  for  the  benefit  of  the  1990  Bonds  by  Section  5 of  said  Tenth
Supplemental Indenture, or otherwise than by the application of monies deposited
with the Trustee  representing  the proceeds of mortgaged  and pledged  property
taken by the exercise of the power of eminent domain or otherwise as provided in
paragraph  B of Section 69 of the  Mortgage,  provided,  however,  that prior to
October 1, 1965, none of the 1990 Bonds may be redeemed, directly or indirectly,
from the proceeds of or in anticipation of any refunding operation involving the
incurring of debt which has an interest rate or cost to the Company, computed in
accordance with generally accepted financial practice, of less than the interest
rate borne by the 1990 Bonds.

     The 1990 Bonds are subject to redemption prior to the maturity thereof,  as
a whole at any time or in part from time to time,  through the  operation of the
Sinking  Fund  created  for the  benefit  of the 1990 Bonds by Section 5 of said
Tenth  Supplemental  Indenture,  or out of  monies  deposited  with the  Trustee
representing  the  proceeds  of  mortgaged  and  pledged  property  taken by the
exercise of the power of eminent  domain or otherwise as provided in paragraph B
of Section 69 of the Mortgage,  at the principal  amount of the 1990 Bonds so to
be redeemed  and accrued  interest to the date of  redemption,  together  with a
premium equal to the percentage of such  principal  amount set forth below under
the heading "Special Redemption Premium":

             If Redeemed During the                    Regular         Special
              Twelve Months' Period                  Redemption      Redemption
            Ending With the Last Day                   Premium         Premium
               of September of the
                   Year Stated
    1961.........................................       5.85%           1.23%
    1962.........................................       5.65%           1.21%
    1963.........................................       5.45%           1.19%
    1964.........................................       5.25%           1.16%
    1965.........................................       5.04%           1.14%
    1966.........................................       4.84%           1.12%
    1967.........................................       4.64%           1.09%
    1968.........................................       4.44%           1.07%
    1969.........................................       4.24%           1.04%
    1970.........................................       4.04%           1.01%
    1971.........................................       3.83%           0.98%
    1972 ........................................       3.63%           0.95%
    1973.........................................       3.43%           0.92%
    1974.........................................       3.23%           0.89%
    1975.........................................       3.03%           0.85%
    1976.........................................       2.83%           0.81%
    1977.........................................       2.63%           0.78%
    1978.........................................       2.42%           0.73%
    1979.........................................       2.22%           0.69%
    1980.........................................       2.02%           0.65%
    1981.........................................       1.82%           0.60%
    1982.........................................       1.62%           0.55%
    1983.........................................       1.42%           0.50%
    1984.........................................       1.21%           0.45%
    1985.........................................       1.01%           0.39%
    1986.........................................       0.81%           0.34%
    1987.........................................       0.61%           0.28%
    1988.........................................       0.41%           0.21%
    1989.........................................       0.21%           0.15%

and without premium in either case if redeemed after September 30, 1989.

     In the manner and upon payment of the charges  prescribed  in the Mortgage,
the 1990 Bonds in coupon form, upon surrender thereof with all unmatured coupons
and any matured coupons in default  appertaining thereto at the office or agency
of the Company in the City of Chicago,  Illinois,  are  exchangeable  for a like
aggregate  principal  amount  of fully  registered  bonds of the same  series of
authorized  denominations,  and in like manner any fully  registered 1990 Bonds,
upon surrender thereof at said office or agency of the Company,  together with a
written  instrument of transfer in form approved by the Company duly executed by
the registered holder or by his duly authorized attorney, are exchangeable for a
like  aggregate  principal  amount of coupon bonds of the same series,  with all
unmatured  coupons and any matured  coupons in default  attached,  or for a like
aggregate principal amount of fully registered bonds of the same series of other
authorized denominations.

     No recourse shall be had for the payment of the principal of or interest on
this bond against any incorporator or any past,  present or future subscriber to
the  capital  stock,  stockholder,  officer or director of the Company or of any
predecessor or successor  corporation,  as such,  either directly or through the
Company or any  predecessor  or  successor  corporation,  under any rule of law,
statute,  or  constitution or by the enforcement of any assessment or otherwise,
all such liability of  incorporators,  subscribers,  stockholders,  officers and
directors, as such, being waived and released by the terms of the Mortgage.

     This bond shall not become  obligatory  until  American  National  Bank and
Trust  Company of Chicago,  the Trustee  under the  Mortgage,  or its  successor
thereunder,  shall  have  signed the form of  certificate  endorsed  hereon.

     IN WITNESS WHEREOF, Indianapolis Power & Light Company has caused this bond
to be signed in its name by its President or one of its Vice-Presidents,  by his
signature or a facsimile  thereof,  and a facsimile of its corporate  seal to be
imprinted hereon, attested by its Secretary or one of its Assistant Secretaries,
by his signature or a facsimile thereof.

     Dated, ___________________


                                             INDIANAPOLIS POWER & LIGHT COMPANY,


                                             By
                                               ---------------------------------
                                                                       President


Attest:


-----------------------------------
                          Secretary



                  [FORM OF TRUSTEE'S CERTIFICATE ON ALL BONDS]

                              Trustee's Certificate

     This bond is one of the bonds,  of the series herein  designated,  provided
for in the within-mentioned Mortgage and Tenth Supplemental Indenture.

                                            AMERICAN NATIONAL BANK AND TRUST
                                              COMPANY OF CHICAGO,
                                                                       Trustee,

                                            By
                                              ----------------------------------
                                                              Authorized Officer

     SECTION 4. Until the 1990 Bonds in definitive  form are ready for delivery,
the Company  may  execute,  and upon its  request in writing  the Trustee  shall
authenticate  and deliver,  in lieu  thereof,  1990 Bonds in temporary  form, as
provided  in  Section  15 of  the  Original  Mortgage,  with  the  privilege  of
registration  as to principal only, and with coupons No. 1 and No. 2 maturing on
April 1, 1961, and October 1, 1961, respectively. Such bonds may, in lieu of the
statement of the  specific  redemption  prices  required to be set forth in such
Bonds in  definitive  form,  include  a  reference  to this  Tenth  Supplemental
Indenture for a statement of such redemption prices.

     SECTION 5. The  Company  covenants  that,  so long as any of the 1990 Bonds
shall remain outstanding, it will, on or before the first day of October of each
year beginning with the year 1965, deliver to the Trustee,  as and for a Sinking
Fund for the benefit of the holders or the registered  owners of 1990 Bonds,  an
amount in cash  and/or  principal  amount of 1990  Bonds  equivalent  to one per
centum (1%) of the greatest  principal  amount of 1990 Bonds  theretofore at any
one time outstanding.

     All  cash  deposited  by the  Company  with  the  Trustee  pursuant  to the
provisions of this Section shall be applied by the Trustee from time to time and
as rapidly as may be practicable to the purchase of 1990 Bonds then outstanding,
at public or  private  sale at the  lowest  prices  at which  such  bonds can be
obtained,  not exceeding,  however,  the principal amount thereof,  plus accrued
interest thereon to the date of purchase,  together with the special  redemption
premium  set forth in the form of 1990 Bonds  recited in Section 3 of this Tenth
Supplemental  Indenture,  or, if the Company shall so request, the Trustee shall
apply any cash then held by it under  this  Section  to the  redemption  of 1990
Bonds as soon as may be practicable  after such request.  In case the balance of
such cash  remaining  with the Trustee on the  twentieth  day of February of any
year beginning with the year 1966 shall  aggregate  $25,000 or more, the Trustee
shall  apply the same to the  redemption  of 1990  Bonds on the next  succeeding
first  day of  April,  in which  case the  Trustee  shall  give  notice  of such
redemption in the name of the Company in the manner and in  accordance  with the
applicable  provisions of Article XII of the Original  Mortgage and Section 2 of
this Tenth Supplemental Indenture; and the Trustee is hereby appointed the agent
of the Company  for such  purpose.  The  Company  covenants  that  whenever  any
redemption of 1990 Bonds shall be required under the provisions of this Section,
it will at the request of the Trustee take all action  necessary,  and authorize
the Trustee to take all action necessary, to redeem such bonds.

     The 1990 Bonds shall be subject to redemption through the operation of such
Sinking Fund at the  principal  amount  thereof,  plus  accrued  interest to the
redemption date,  together with the aforesaid special  redemption  premium.  The
Company  shall have the right to tender 1990 Bonds for sale by it to the Trustee
under the provisions of this Section.

     The Company shall pay to the Trustee,  on demand, the amount of accrued and
unpaid interest upon all bonds purchased or redeemed pursuant to this Section.

     Any bonds  deposited,  purchased or redeemed  pursuant to the provisions of
this Section,  shall forthwith be cancelled by the Trustee, and upon the request
of the  Company,  the  Trustee may cremate the same and deliver to the Company a
certificate of such cremation.

     The  Company  covenants  that it will not use any bonds  heretofore  issued
under the  Mortgage  (including  any of the 1990  Bonds)  which  may be  retired
pursuant to the respective  sinking funds provided for the bonds now outstanding
or the 1990 Bonds,  as the basis for the  authentication  and  delivery of bonds
pursuant  to Article  VII of the  Mortgage,  or as credit  pursuant to any other
provision of the Mortgage.

     SECTION 6. The  Company  covenants  that,  so long as any of the 1990 Bonds
shall  remain  outstanding,  it will  continue to make to the Trustee the annual
payments for a Maintenance  and  Improvement  Fund required by Section 41 of the
Original Mortgage and will comply with the provisions of said Section 41.

     SECTION 7. The  Company  covenants  that,  so long as any of the 1990 Bonds
shall remain  outstanding,  it will comply with all of the provisions of Section
47  of  the  Original  Mortgage,   including  the  provisions  with  respect  to
limitations  on dividends and  distributions  and the purchase and redemption of
stock.

     SECTION 8. In the event the Company  elects to redeem any of the 1990 Bonds
prior to October 1, 1965,  the  Company  shall,  prior  thereto,  furnish to the
Trustee a  Treasurer's  Certificate  stating that such  redemption  is not being
made,  directly or indirectly,  from the proceeds of or in  anticipation  of any
refunding  operation  involving the incurring of debt which has an interest rate
or cost to the Company, computed in accordance with generally accepted financial
practice,  of less than the interest  rate borne by the 1990 Bonds and that said
refunding  operation  is in full  compliance  with the terms and  conditions  of
Section 2 of this Tenth Supplemental Indenture.

     SECTION  9.  Section  14 of the  Original  Mortgage  is hereby  amended  by
amending the first sentence thereof to read as follows:

          All bonds issued  hereunder  shall,  from time to time, be executed on
     behalf of the Company by its President or one of its Vice-Presidents, whose
     signature, except on bonds of the 3% Series, due 1970, 3% Series, due 1974,
     277/8% Series,  due 1979, 277/8% Series,  due 1981, 35/8% Series, due 1983,
     35/8% Series,  due 1986 and 41/8% Series,  due 1988, may be a facsimile and
     its  corporate  seal shall be thereunto  affixed or  imprinted  thereon and
     attested  by its  Secretary  or one of  its  Assistant  Secretaries,  whose
     attestation,  except  on bonds of the  series  enumerated  above,  may be a
     facsimile.

and by amending the next to the last sentence thereof to read as follows:

          In case  any of the  officers  who  shall  have  signed  any  bonds or
     attested the seal thereon or whose facsimile signature appears on any bonds
     or coupons shall cease to be such officers of the Company  before the bonds
     so  signed  and/or  sealed  shall  have  been  actually  authenticated  and
     delivered by the Trustee or issued by the Company,  such bonds nevertheless
     may be  authenticated,  delivered  and/or  issued  with the same  force and
     effect as though the person or persons  who signed  such bonds or  attested
     the seal  thereon  or whose  facsimile  signature  appears  on any bonds or
     coupons had not ceased to be such officer or officers of the Company.

     SECTION 10. The Trustee hereby accepts the trusts herein declared, provided
and created and agrees to perform the same upon the terms and conditions  herein
and in the Mortgage set forth and upon the following terms and  conditions:

     The  recitals  contained  herein  and in the  bonds  shall  be taken as the
statements  of the  Company and the Trustee  assumes no  responsibility  for the
correctness of the same. The Trustee makes no  representations as to validity or
adequacy of the security  afforded  hereby,  or as to the validity of this Tenth
Supplemental Indenture or of the bonds or coupons issued hereunder.

     SECTION 11.  Whenever in this Tenth  Supplemental  Indenture  either of the
parties hereto is named or referred to, this shall, subject to the provisions of
Article XVII of the Original  Mortgage,  be deemed to include the  successors or
assigns  of such  party,  and all the  covenants  and  agreements  in this Tenth
Supplemental  Indenture  contained by or on behalf of the  Company,  or by or on
behalf  of the  Trustee,  shall,  subject  as  aforesaid,  bind and inure to the
benefit of the  respective  successors  and assigns of such parties,  whether so
expressed or not.

     SECTION 12.  Nothing in this Tenth  Supplemental  Indenture,  expressed  or
implied,  is  intended or shall be  construed  to confer upon or to give to, any
person,  co-partnership  or  corporation,  other than the parties hereto and the
holders of the bonds and  coupons  outstanding  under the  Mortgage,  any right,
remedy, or claim under or by reason of this Tenth Supplemental  Indenture or any
covenant, condition or stipulation hereof; and all the covenants,  stipulations,
promises and agreements in this Tenth Supplemental  Indenture contained by or on
behalf of the Company shall be for the sole and exclusive benefit of the parties
hereto and of the holders of the bonds and of the coupons  outstanding under the
Mortgage.

     SECTION 13. The Company  covenants  that all of the terms,  provisions  and
conditions  of the  Mortgage  shall  be  applicable  to the  1990  Bonds  issued
hereunder,  except as herein  otherwise  provided and except insofar as the same
may be inconsistent with the provisions of this Tenth Supplemental Indenture.

     SECTION 14.  This Tenth  Supplemental  Indenture  is dated as of October 1,
1960,  although executed and delivered on the date of the acknowledgment  hereof
by the Trustee;  and shall be simultaneously  executed in several  counterparts,
and all such  counterparts  executed and delivered,  each as an original,  shall
constitute but one and the same instrument.

     IN WITNESS WHEREOF,  INDIANAPOLIS POWER & LIGHT COMPANY, party of the first
part, has caused its corporate name to be hereunto  affixed and this  instrument
to be signed and  acknowledged  by its  President or a  Vice-President,  and its
corporate  seal  to be  hereto  affixed  and  attested  by its  Secretary  or an
Assistant Secretary, for and in its behalf, and AMERICAN NATIONAL BANK AND TRUST
COMPANY OF CHICAGO,  party of the second part,  has caused its corporate name to
be hereunto  affixed and this instrument to be signed and acknowledged by one of
its Vice-Presidents, and its corporate seal to be hereto affixed and attested by
its Assistant Secretary, all as of the day, month and year first above written.

                                 INDIANAPOLIS POWER & LIGHT COMPANY,

[SEAL]

Attest:
                                              By  /s/O.T. Fitzwater
                                            O.T. Fitzwater, President
    Ralph W. Husted, Secretary

                                              AMERICAN NATIONAL BANK AND TRUST
                                                  COMPANY OF CHICAGO,

[SEAL]

Attest:
                                              By  /s/E. L. Andrews
                                            E. L. Andrews, Vice-President


        /s/A. H. Morstadt
A. H. Morstadt, Assistant Secretary

<PAGE>


STATE OF INDIANA  )
                  )  SS.:
COUNTY OF MARION  )

     On this 28th day of September, in the year 1960, before me, a Notary Public
in and for the  County and State  aforesaid,  personally  came O. T.  Fitzwater,
President,  and  Ralph  W.  Husted,  Secretary,  of  Indianapolis  Power & Light
Company,  one of the corporations  described in and which executed the foregoing
instrument,  to me  personally  known  and  known  to me  personally  to be such
President and Secretary,  respectively. Said O. T. Fitzwater and Ralph W. Husted
being  by me  severally  duly  sworn  did  depose  and say  that  the said O. T.
Fitzwater resides in the City of Indianapolis,  Marion County, Indiana, and that
the said Ralph W. Husted  resides in the City of  Indianapolis,  Marion  County,
Indiana;  that said O. T.  Fitzwater  is  President  and said Ralph W. Husted is
Secretary of said  Indianapolis  Power & Light Company;  that each of them knows
the corporate seal of said corporation; that the seal affixed to said instrument
and bearing the name of said  corporation is such corporate seal; that it was so
affixed by order of the Board of Directors of said corporation; and that each of
them signed his name thereto by like order;  and each of them  acknowledged  the
execution of said  instrument on behalf of said  corporation  to be his free and
voluntary  act and  deed  and  the  free  and  voluntary  act  and  deed of said
corporation, for the uses and purposes therein set forth.

     IN WITNESS  WHEREOF,  I have  hereunto  set my hand and affixed my official
seal this 28th day of September, 1960.

                                                  /s/Margaret M. Miller
                                              Margaret M. Miller, Notary Public
                                                      (Notarial Seal)

My Commission Expires
   July 29, 1961

<PAGE>

STATE OF ILLINOIS )
                  ) SS.:
COUNTY OF COOK    )

     On this  28th day of  September,  in the  year  1960,  before  me, a Notary
Public.  in and  for the  County  and  State  aforesaid,  personally  came E. L.
Andrews,  Vice-President,  and A. H. Morstadt,  Assistant Secretary, of American
National Bank and Trust Company of Chicago, one of the corporations described in
and which executed the foregoing instrument, to me personally known and known to
me personally to be such Vice-President and Assistant  Secretary,  respectively.
Said E. L.  Andrews and A. H.  Morstadt,  being by me  severally  duly sworn did
depose and say that the said E. L. Andrews  resides in Highland  Park,  State of
Illinois,  and  that the  said A. H.  Morstadt  resides  in  Elmhurst,  State of
Illinois;  that said E. L. Andrews is Vice-President  and said A. H. Morstadt is
Assistant Secretary of said American National Bank and Trust Company of Chicago;
that each of them knows the corporate  seal of said  corporation;  that the seal
affixed to said  instrument  and  bearing the name of said  corporation  is such
corporate seal; that it was so affixed by authority of the Board of Directors of
said  corporation;  and  that  each of them  signed  his  name  thereto  by like
authority;  and each of them  acknowledged  the execution of said  instrument on
behalf of said  corporation  to be his free and  voluntary  act and deed and the
free and voluntary act and deed of said  corporation,  for the uses and purposes
therein set forth.

     IN WITNESS  WHEREOF,  I have  hereunto  set my hand and affixed my official
seal this 28th day of September, 1960.

                                                 /s/Ruth J. Baumgartner
                                              Ruth J. Baumgartner, Notary Public
                                                         (Notarial Seal)
My Commission Expires:
  December 5, 1961


                          This instrument was prepared
                               by Ralph W. Husted

<PAGE>
<TABLE>
<CAPTION>


                                                            RECORDING DATA

                                       TENTH SUPPLEMENTAL INDENTURE DATED AS OF OCTOBER 1, 1960


                County                Instrument                     Record              Page     Instru-          Recording
                                                                                                  ment No.           Date
<S>                            <C>                       <C>                      <C>       <C>       <C>     <C>
         Marion                Real Estate Mortgage      Mortgage Record          2059      378       71894   September 28, 1960
                               Chattel Mortgage          Chattel Minute Record     236      149       71895   September 28, 1960
         Boone                 Real Estate Mortgage      Mortgage Record           136      487        4544   September 29, 1960
                               Chattel Mortgage          Chattel Minute Record      24      194        4545   September 29, 1960
         Gibson                Real Estate Mortgage      Mortgage Record           185       94        8035   September 29, 1960
                               Chattel Mortgage          Chattel Minute Record      17      196        8036   September 29, 1960
         Hamilton              Real Estate Mortgage      Mortgage Record           146      205        1359   September 29, 1960
                               Chattel Mortgage          Chattel Minute Record      M9      234        1360   September 29, 1960
         Hancock               Real Estate Mortgage      Mortgage Record           104      513        4191   September 29, 1960
                               Chattel Mortgage          Chattel Minute Record      19      197        4192   September 29, 1960
         Hendricks             Real Estate Mortgage      Mortgage Record           153      438        7680   September 29, 1960
                               Chattel Mortgage          Chattel Minute Record      16      193        7681   September 29, 1960
         Johnson               Real Estate Mortgage      Mortgage Record           147      441       08206   September 29, 1960
                               Chattel Mortgage          Chattel Minute Record      23       37       08207   September 29, 1960
         Morgan                Real Estate Mortgage      Mortgage Record           142       75       24360   September 29, 1960
                               Chattel Mortgage          Chattel Minute Record      42       94       24359   September 29, 1960
         Pike                  Real Estate Mortgage      Mortgage Record            37      313        2482   September 29, 1960
                               Chattel Mortgage          Chattel Minute Record       7      130        2483   September 29, 1960
         Shelby                Real Estate Mortgage      Mortgage Record           179       13        3941   September 29, 1960
                               Chattel Mortgage          Chattel Minute Record      18      162        3942   September 29, 1960
         Sullivan              Real Estate Mortgage      Mortgage Record           161      407       33685   September 29, 1960
                               Chattel Mortgage          Chattel Minute Record      17       66       33686   September 29, 1960
</TABLE>

<PAGE>


                                                                   Exhibit 4.4.3

                                                                [CONFORMED COPY]
================================================================================

                       INDIANAPOLIS POWER & LIGHT COMPANY

                                       to

                        AMERICAN NATIONAL BANK AND TRUST
                               COMPANY OF CHICAGO

                                                 TRUSTEE

                              ____________________


                        Eighteenth Supplemental Indenture


                              ____________________



                          Dated as of February 15, 1974



                              ____________________



                   MODIFICATIONS OF MORTGAGE AND DEED OF TRUST
                    DATED AS OF MAY 1, 1940, AS SUPPLEMENTED


================================================================================
<PAGE>
                               TABLE OF CONTENTS*
                                       of
                        EIGHTEENTH SUPPLEMENTAL INDENTURE
                                       of
                       INDIANAPOLIS POWER & LIGHT COMPANY

                                                                            Page

PARTIES.....................................................................  1

RECITALS....................................................................  1

SEC. 1   Modification of Section 4(I) of Original Mortgage..................  3

SEC. 2   Modification of Section 6 of Original Mortgage.....................  3

SEC. 3   Modification of Section 80(7) (h) of Original Mortgage.............  3

SEC. 4   Modification of Section 39 of Original Mortgage....................  4

SEC. 5   Eighteenth Supplemental Indenture executed to embody
            modifications of Mortgage and Deed of Trust
            dated as of May 1, 1940.........................................  5

SEC. 6   Trustee assent under Section 125 of Original Mortgage..............  5

SEC. 7   Successors and assigns.............................................  5

SEC. 8   Limitation of rights hereunder.....................................  5

SEC. 9   Execution in counterparts..........................................  6

TESTIMONIUM.................................................................  6

SIGNATURES AND SEALS........................................................  6

ACKNOWLEDGMENTS.............................................................  8

-----------------------
*    Table of Contents is not part of the Eighteenth  Supplemental Indenture and
     should not be considered  as such. It is included  herein only for purposes
     of convenient reference.
<PAGE>

     THIS  EIGHTEENTH  SUPPLEMENTAL  INDENTURE,  dated as of February  15, 1974,
between  INDIANAPOLIS  POWER & LIGHT  COMPANY,  a  corporation  of the  State of
Indiana, hereinafter sometimes called the "Company", party of the first part and
AMERICAN  NATIONAL  BANK AND  TRUST  COMPANY  OF  CHICAGO,  a  national  banking
association,  as Trustee,  hereinafter sometimes called the "Trustee",  party of
the second part;

     WHEREAS, the Company by a Mortgage and Deed of Trust (hereinafter sometimes
called the  "Original  Mortgage"  when  referred  to as  existing  prior to any
supplement  thereto,  and the "Mortgage" when referred to as now or heretofore
supplemented)  dated as of May 1, 1940, made to said American  National Bank and
Trust Company of Chicago,  as Trustee, to secure the payment of the bonds issued
from time to time under the  Mortgage  for the  purposes  of and  subject to the
limitations  specified in the  Mortgage,  and to secure the  performance  of the
covenants  therein  contained,  conveyed to the Trustee  thereunder upon certain
trusts,  terms and  conditions,  and with and  subject to certain  provisos  and
covenants  therein  contained,  all  and  singular  the  property,   rights  and
franchises which the Company then owned or should thereafter acquire,  excepting
the property  expressly  excepted by the terms of the  Original  Mortgage or any
indenture  supplemental  thereto, to which Mortgage reference is hereby made for
greater certainty; and

     WHEREAS,  the  Original  Mortgage  has been  supplemented  by  supplemental
indentures dated as of May 1, 1942, as of February 1, 1948, as of April 1, 1949,
as of October 1, 1949,  as of February 1, 1951,  as of March 1, 1953, as of June
1, 1956, as of March 1, 1958, as of October 1, 1960, as of August 1, 1964, as of
April 1, 1966,  as of May 1, 1967,  as of May 1, 1968, as of October 1, 1970, as
of March 1, 1972, and as of March 15, 1973; and

     WHEREAS,  modifications  of the Original  Mortgage as hereinafter set forth
were made at an  adjourned  meeting of  bondholders  duly  convened  and held on
November  30,  1973,  in  accordance  with the  provisions  of Article XX of the
Original  Mortgage,  by resolutions duly adopted by the affirmative votes of the
holders of more than sixty-six and two-thirds per centum  (66-2/3%) in principal
amount of the bonds entitled to vote at such meeting then outstanding  under the
Mortgage,  and approved by  resolutions of the Board of Directors of the Company
duly adopted at a meeting thereof duly convened and held on December 14, 1973, a
copy of  which  resolutions  of  approval,  certified  by the  Secretary  of the
Company,  was filed by the Company with the Trustee on December  17,  1973,  and
became binding upon. the Company,  the Trustee, and the holders of all bonds and
coupons issued under the Mortgage, on February 15, 1974; and

     WHEREAS, Section 126 of Article XX of the Original Mortgage provides, among
other things,  that instruments  supplemental to the Original Mortgage embodying
any modification of the Original  Mortgage made at any bondholders'  meeting and
approved by resolution of the Board of Directors of the Company, may be executed
by the Trustee and the Company; and

     WHEREAS,  all things  necessary to make the  modifications  of the Original
Mortgage  hereinafter  set forth  binding upon the Company,  the Trustee and the
holders of all bonds and coupons  issued  under the  Mortgage,  and to make this
Eighteenth  Supplemental Indenture a valid mid binding agreement supplemental to
the Original  Mortgage,  have been done and  performed,  and the  execution  and
delivery  hereof,  in the form and terms hereof,  have been in all respects duly
authorized;

     NOW, THEREFORE,  THIS EIGHTEENTH SUPPLEMENTAL INDENTURE WITNESSETH that, in
consideration  of the premises and of the sum of one dollar  lawful money of the
United  States of America to the  Company  duly paid by the Trustee at or before
the  execution  and  delivery of this  Eighteenth  Supplemental  Indenture,  the
receipt   whereof  is  hereby   acknowledged,   the  Company  and  the  Trustee,
respectively,   have  entered  into,  executed  and  delivered  this  Eighteenth
Supplemental Indenture for the uses and purposes hereinafter expressed,  that is
to say:

     SECTION 1. Section 4(I) of the Original  Mortgage has been modified so that
the first sentence thereof now reads as follows:

          "SECTION  4. (I) The term  `property  additions'  shall  mean  plants,
          lines,  pipes,  mains,  cables,  machinery,  transmission  lines, pipe
          lines,  distribution  systems,  service  systems  and supply  systems,
          property, real or personal, and improvements, extensions or additions,
          located within the State of Indiana,  or located in any other State if
          such property is physically connected with any property of the Company
          located  in  Indiana  by or through  other  property  of the  Company,
          acquired by purchase, consolidation,  merger, donation or in any other
          way  whatsoever,  subsequent to April 30, 1940, or made or constructed
          subsequent  to April 30, 1940,  or in the process of  construction  or
          erection in so far as actually  constructed  or erected  subsequent to
          April 30,  1940,  and used or useful or to be used in the  business of
          generating, manufacturing, transporting, transmitting, distributing or
          supplying  electricity for light,  heat,  power or other purposes,  or
          steam  for  power,   heat  or  other  purposes,   including,   without
          limitation, nuclear fuel assemblies,  components and materials used in
          the generation of electricity."

     SECTION 2. Section 6 of the Original Mortgage has been modified by striking
out the word "or" at the end of subdivision  (f);  by  substituting a semi-colon
for the period at the end of subdivision (g), and adding the word "or" after the
semi-colon,  and by adding  immediately  after subdivision (g) the following new
subdivision (h) as follows:

          "(h) waivers of the right to partition property held by the Company as
     a tenant in common with another or others."

     SECTION  3.  Section  30 of the  Original  Mortgage  has been  modified  by
amending  clause (h) of subdivision (7) thereof so that said clause now reads as
follows:

          "(h)  that the  Company  has  corporate  authority  and all  necessary
     permission from governmental  authorities to own the property  additions in
     respect of which such application is made;"

     SECTION 4.  Section 39 of the Original  Mortgage has been  modified so that
said Section now reads as follows:

          "SECTION  39.  That it will pay all  taxes  and  assessments  lawfully
          levied or assessed upon the mortgaged  and pledged  property,  or upon
          any part thereof or upon any income  therefrom or upon the interest of
          the Trustee in the mortgaged  and.  pledged  property  before the same
          shall  become  delinquent,  and will duly  observe  and conform to all
          valid  requirements of any governmental  authority  relative to any of
          the  mortgaged  and pledged  property,  and all  covenants,  terms and
          conditions  upon or  under  which  any of the  mortgaged  and  pledged
          property  is held;  that it will not suffer  any lien to be  hereafter
          created upon the mortgaged and pledged property,  or any part thereof,
          or the income  therefrom,  prior to the lien of these presents,  other
          than  excepted  encumbrances,  and, in the case of property  hereafter
          acquired,  vendors'  liens,  purchase  money  mortgages  and any  lien
          thereon at the time of the acquisition  thereof,  and that within four
          months after the  accruing of any lawful  claims or demands for labor,
          materials,  supplies or other objects, which if unpaid might by law be
          given  precedence  over the lien of this Indenture as a lien or charge
          upon any of the mortgaged and pledged  property or the income thereof,
          it will pay or cause to be discharged  or make  adequate  provision to
          satisfy and discharge  the same;  provided,  however,  that nothing in
          this Section contained shall require the Company to observe or conform
          (1) to any  requirement  of  governmental  authority or to cause to be
          paid or discharged, or to make provision for, any such lien or charge,
          or to pay any such tax,  assessment or governmental  charge so long as
          the  validity  thereof  shall  be  contested  in  good  faith  and  by
          appropriate  legal  proceedings,  or (2) to  observe or conform to any
          requirement of governmental authority arising under any federal, state
          or local  environmental  law or  regulation  if the Company is in good
          faith doing all things  technologically and economically  feasible and
          prudent on its part to observe or conform to such requirement,  and if
          the  Company  shall  have  filed an  engineer's  certificate  with the
          Trustee to such effect  specifying such requirement and the good faith
          efforts  it is making  to comply  therewith;  and  provided  that such
          security for the payment of such lien, charge or tax shall be given as
          the Trustee may  require;  and that,  save as  aforesaid,  it will not
          suffer any matter or thing  whereby the lien hereof  might or could be
          impaired."

     SECTION 5. This Eighteenth Supplemental Indenture is executed and delivered
by the Company and the Trustee for the purpose of embodying the modifications of
the Original  Mortgage  set forth in Sections 1, 2, 8 and 4 hereof,  made at the
adjourned meeting of bondholders  referred to in the recitals  contained herein,
and approved by resolutions of the Board of Directors of the Company, as therein
stated, which modifications became binding upon the Company, the Trustee and the
holders of all bonds and coupons  issued  under the  Mortgage,  on February  15,
1974.

     SECTION  6. To the  extent  required  by  Section  125 of Article XX of the
Original Mortgage, the Trustee, by its execution of this Eighteenth Supplemental
Indenture,  evidences its written  assent to the  modifications  of the Original
Mortgage set forth in Sections 1, 2, 8 and 4 hereof.

     SECTION 7. Whenever in this Eighteenth Supplemental Indenture either of the
parties hereto is named or referred to, this shall, subject to the provisions of
Article XVII of the Original  Mortgage,  be deemed to include the  successors or
assigns of such party,  and all the covenants and agreements in this  Eighteenth
Supplemental  Indenture contained by or on behalf of the Company shall,  subject
as aforesaid,  bind and inure to the benefit of the  respective  successors  and
assigns of such parties, whether so expressed or not.

     SECTION 8. Nothing in this Eighteenth Supplemental Indenture,  expressed or
implied,  is intended or shall be construed  to confer upon,  or to give to, any
person,  co-partnership  or  corporation,  other than the parties hereto and the
holders of the bonds and coupons issued under the Mortgage,  any right,  remedy,
or claim under or by reason of this  Eighteenth  Supplemental  Indenture  or any
covenant,  condition or stipulation  hereof; and all the covenants,  conditions,
stipulations,  promises and agreements in this Eighteenth Supplemental Indenture
contained  by or on behalf of the  Company  shall be for the sole and  exclusive
benefit of the parties hereto and of the holders of the bonds and of the coupons
issued under the Mortgage.

     SECTION 9. This Eighteenth  Supplemental  Indenture is dated as of February
15,  1974,  although  executed and  delivered on the date of the  acknowledgment
hereof by the Trustee;  and shall be  simultaneously  executed and  delivered in
several counterparts,  and all such counterparts executed and delivered, each as
an original, shall constitute but one and the same instrument.

     IN WITNESS WHEREOF,  INDIANAPOLIS POWER & LIGHT COMPANY, party of the first
part has caused its corporate name to be hereunto affixed and this instrument to
be  signed  and  acknowledged  by its  President  or a Vice  President,  and its
corporate  seal  to be  hereto  affixed  and  attested  by its  Secretary  or an
Assistant Secretary, for and in its behalf, and AMERICAN NATIONAL BANK AND TRUST
COMPANY  OF  CHICAGO,  party of the  second  part,  as  Trustee,  has caused its
corporate  name to be  hereunto  affixed  and this  instrument  to be signed and
acknowledged by one of its Vice Presidents,  and its corporate seal to be hereto
affixed and  attested by one of its  Assistant  Secretaries,  all as of the day,
month and year first above written.


                                   INDIANAPOLIS POWER & LIGHT COMPANY



                                            By  /s/E. L. CASSADY
                                                   E.L. CASSADY, President

Attest:

        /s/M.E. Woods
        M.E. Woods, Secretary


                                            AMERICAN NATIONAL BANK AND TRUST
                                              COMPANY OF CHICAGO



                                            By /s/P. G. CALLAS
                                               PERRY G. CALLAS, Vice President


Attest:

    /s/RICHARD Y. GUTHRIE
    RICHARD Y. GUTHRIE, Assistant Secretary

<PAGE>

STATE OF INDIANA  )
COUNTY OF MARION  ) SS:


     On this 15th day of February,  in the year 1974, before me, a Notary Public
in and for the  County  and  State  aforesaid,  personally  came E. L.  CASSADY,
President,  and M. E. WOODS,  Secretary,  of Indianapolis Power & Light Company,
one  of  the  corporations   described  in  and  which  executed  the  foregoing
instrument,  to me  personally  known  and  known  to me  personally  to be such
President and Secretary, respectively. Said E. L. Cassady and M. E. Woods, being
by me severally duly sworn did depose and say that said E. L. Cassady resides in
Marion County,  Indiana,  and that said M. E. Woods resides in Hendricks County,
Indiana;  that said E. L. Cassady is President and said M. E. Woods is Secretary
of said  Indianapolis  Power &  Light  Company;  that  each  of them  knows  the
corporate seal of said corporation; that the seal affixed to said instrument and
bearing the name of said  corporation  is such  corporate  seal;  that it was so
affixed by order of the Board of Directors of said corporation; and that each of
them signed his name thereto by like order;  and each of them  acknowledged  the
execution of said  instrument on behalf of said  corporation  to be his free and
voluntary  act and  deed  and  the  free  and  voluntary  act  and  deed of said
corporation, for the uses and purposes therein set forth.

     IN WITNESS  WHEREOF,  I have  hereunto  set my hand and affixed my official
seal this 15th day of February, 1974.

                                              /s/L. ANGELA CRAWFORD
                                              L. ANGELA CRAWFORD, Notary Public


My Commission Expires:
May 2, 1977

(Notarial Seal)
<PAGE>

STATE OF ILLINOIS )
COUNTY OF COOK    ) SS:

     On this 15th day of February,  in the year 1974, before me, a Notary Public
in and for the County and State aforesaid, personally came PERRY G. CALLAS, Vice
President,  and RICHARD Y. GUTHRIE,  Assistant  Secretary,  of American National
Bank and Trust  Company of Chicago,  one of the  corporations  described  in and
which executed the foregoing instrument,  to me personally known and known to me
personally to be such Vice President and Assistant Secretary, respectively. Said
PERRY G. CALLAS,  AND RICHARD Y. GUTHRIE,  being by me severally  duly sworn did
depose and say that said PERRY G. CALLAS resides in Chicago,  State of Illinois,
and that said RICHARD Y. GUTHRIE  resides in Evanston,  State of Illinois;  that
said PERRY G. CALLAS,  Vice  President  and said RICHARD Y. GUTHRIE is Assistant
Secretary of said American National Bank and Trust Company of Chicago; that each
of them knows the corporate seal of said  corporation;  that the seal affixed to
said instrument and bearing the name of said corporation is such corporate seal;
that  it was so  affixed  by  authority  of  the  Board  of  Directors  of  said
corporation;  and that each of them signed his name  thereto by like  authority;
and each of them acknowledged the execution of said instrument on behalf of said
corporation to be his free and voluntary act and deed and the free and voluntary
act and deed of said corporation, for the uses and purposes therein set forth.

     IN WITNESS  WHEREOF,  I have  hereunto  set my hand and affixed my official
seal this 15th day of February, 1974.

                                              /s/SANDRA GURGONE
                                              SANDRA GURGONE, Notary Public

My Commission Expires:
January 15, 1978

                                                                 (Notarial Seal)

                          This instrument was prepared
                                 by M. E. Woods

<PAGE>
<TABLE>
<CAPTION>

                                 RECORDING DATA
         Eighteenth Supplemental Indenture Dates As Of February 15, 1974


                                                                      Recording
   County             Record            Page           Instr. No.        Date
   ------             ------            ----           ----------     ---------
<S>                <C>                   <C>              <C>         <C>
Boone ........     Mtg. Rec. 169         85               610         2/19/74

Daviess ......     Mtg. Rec. 181        743             10439         2/19/74

Gibson .......     Drawer No. 2         ---             37234         2/19/74
                   Card No. 5259

Greene .......     Mtg. Rec. H-7         65               862         2/19/74

Hamilton .....     Mtg. Rec. 294        429              1261         2/19/74

Hancock ......         ---              ---           74-0714         2/19/74

Hendricks ....     Mtg. Rec. 214      241-6             11721         2/19/74

Johnson ......     Mtg. Rec. 221        765            011890         2/19/74

Knox .........     Mtg. Rec. 240        365               593         2/19/74

Madison ......     Mtg. Rec. 600        407              9299         2/19/74

Marion .......         ---              ---            74-8625        2/19/74

Monroe .......     Mtg. Rec. A227       451             56636         2/19/74

Morgan .......     Mtg. Rec. 227         33               778         2/19/74

Owen .........     Mtg. Rec. AAV        397             32784         2/19/74

Pike .........     Mtg. Rec. 54         163               338         2/19/74

Putnam .......     Mtg. Rec. 139        443             13542         2/19/74

Shelby .......     Mtg. Rec. 220        671               705         2/19/74

Sullivan .....     Mtg. Rec. 202        484             16908         2/19/74


</TABLE>
<PAGE>

                                                                   Exhibit 4.4.4

                     INDIANAPOLIS POWER & LIGHT COMPANY

                                      TO

                       AMERICAN NATIONAL BANK AND TRUST
                              COMPANY OF CHICAGO
                                              TRUSTEE

                                ---------------

                      THIRTY-FOURTH SUPPLEMENTAL INDENTURE

                                ---------------

                         DATED AS OF OCTOBER 15, 1991

                      ESTABLISHING FIRST MORTGAGE BONDS,

                            8% SERIES, DUE 2006




                               TABLE OF CONTENTS*

                                       of

                      THIRTY-FOURTH SUPPLEMENTAL INDENTURE

                                       of

                       INDIANAPOLIS POWER & LIGHT COMPANY


                                                                 PAGE
                                                                 ----
Parties..................................................          1
Recitals.................................................          1
Section 1   Granting clauses..............................         3
               Part I Electric Distributing Systems.......         3
               Part II Steam and Hot Water Distributing
                         Systems..........................         4
               Part III Indeterminate Permits and
                         Franchises.......................         4
               Part IV Other Property.....................         5
            General and after-acquired title..............         6
Section 2   Designation of Thirty-Second series of bonds
              and kind and denominations thereof..........         6
            Record date for payment of interest...........         6
            Designation of American National Bank and Trust
              Company of Chicago as paying agent..........         7
            Exchange of bonds.............................         7
            Transfer of bonds.............................         8
            Series limited to $58,800,000.................         8
Section 3   Form of fully registered bond.................         8
            Form of Trustee's certificate on bonds........        10
Section 4   Temporary bonds...............................        13
Section 5   Annual Payments for Maintenance and
              Improvement Fund............................        13
Section 6   Compliance with Section 47 of Original
              Mortgage with respect to dividend
              restrictions................................        14
Section 7   Acceptance of trusts by Trustee and
              conditions of acceptance....................        14
Section 8   Successors and assigns........................        14
Section 9   Limitation of rights hereunder................        14
_________________________
*Table of Contents is not part of the Thirty-Fourth
Supplemental Indenture and should not be considered such.
It is included herein only for purposes of convenient
reference.

                                                                PAGE
                                                                ----
Section 10  Compliance with terms, provisions and
              conditions of Mortgage......................        15
Section 11  Execution in counterparts.....................        15
Testimonium...............................................        16
Signatures and Seals......................................        16
Acknowledgements..........................................        17

                                       ii


THIS THIRTY-FOURTH SUPPLEMENTAL INDENTURE, dated as of
October 15, 1991, between INDIANAPOLIS POWER & LIGHT
COMPANY, a corporation of the State of Indiana,
hereinafter sometimes called the "Company," party of the
first part, and AMERICAN NATIONAL BANK AND TRUST COMPANY
OF CHICAGO, a national banking association, as Trustee,
hereinafter sometimes called the "Trustee," party of the
second part;

WHEREAS, the Company by a Mortgage and Deed of Trust
(hereinafter sometimes called the "Original Mortgage"
when referred to as existing prior to any supplement
thereto or modification thereof, and the "Mortgage" when
referred to as now or heretofore supplemented and
modified) dated as of May 1, 1940, made to said American
National Bank and Trust Company of Chicago, as Trustee,
to secure the payment of the bonds issued from time to
time under the Mortgage for the purposes of and subject
to the limitations specified in the Mortgage, and to
secure the performance of the covenants therein
contained, conveyed to the Trustee thereunder upon
certain trusts, terms and conditions, and with and
subject to certain provisos and covenants therein
contained, all and singular the property, rights and
franchises which the Company then owned or should
thereafter acquire, excepting the property expressly
excepted by the terms of the Original Mortgage or any
indenture supplemental thereto, to which Mortgage
reference is hereby made for greater certainty; and

WHEREAS, the Original Mortgage has been supplemented and
modified by supplemental indentures dated as of May 1,
1942, as of February 1, 1948, as of April 1, 1949, as of
October 1, 1949, as of February 1, 1951, as of March 1,
1953, as of June 1, 1956, as of March 1, 1958, as of
October 1, 1960, as of August 1, 1964, as of April 1,
1966, as of May 1, 1967, as of May 1, 1968, as of October
1, 1970, as of March 1, 1972, as of March 15, 1973, as of
February 15, 1974, as of August 15, 1974, as of September
15, 1975, as of June 1, 1976, as of July 1, 1976, as of
August 1, 1977, as of September 1, 1978, as of August 1,
1981, as of November 1, 1983, as of November 1, 1984, as
of December 1, 1984, as of September 1, 1985, as of
October 1, 1986, as of June 1, 1989, and as of August 1,
1989; and

WHEREAS, Section 8 of the Original Mortgage provides,
among other things, that the form of each series of bonds
(other than the initial issue of bonds) issued thereunder
shall be established by an indenture supplemental thereto
authorized by resolution of the Board of Directors of the
Company, and that the form of each series, as established
by the Board of Directors, shall specify the descriptive
title of the bonds and various other terms thereof, and
may also contain other provisions as the Board of
Directors may, in its discretion, cause to be inserted
therein expressing or referring to the terms and
conditions upon which such bonds are to be issued and
secured under the Original Mortgage or any indenture
supplemental thereto or in modification thereof; and

WHEREAS, the Company now desires to provide for the
establishment, execution, authentication and delivery
under the Mortgage of bonds of a series to be known as
its "First Mortgage Bonds, 8% Series, due 2006" (the
bonds of said series being hereinafter sometimes referred
to as the "2006 Bonds"), limited to the aggregate
principal amount of Fifty-Eight Million Eight Hundred
Thousand Dollars ($58,800,000); and

WHEREAS, all things necessary to make the 2006 Bonds
hereinafter described, when duly executed by the Company
and authenticated and delivered by the Trustee, valid,
binding and legal obligations of the Company, and to make
this Thirty-Fourth Supplemental Indenture a valid and
binding agreement supplemental to the Original Mortgage,
have been done and performed; and

WHEREAS, the execution and delivery by the Company of
this Thirty-Fourth Supplemental Indenture, and the terms
of the 2006 Bonds, have been duly authorized by the Board
of Directors of the Company by appropriate resolutions of
said Board; and

WHEREAS, it is provided in and by the Original Mortgage
that the Company will execute and deliver such further
instruments and do such further acts as may be necessary
or proper to carry out more effectually the purposes of
the Mortgage, and to make subject to the lien thereof any
property thereafter acquired and intended to be subject
to the lien thereof; and

WHEREAS, the Company has, since the date of execution and
delivery of the Original Mortgage, purchased and acquired
property and desires by this Thirty-Fourth Supplemental
Indenture specifically to convey to the Trustee such
property for the better protection and security of the
bonds issued and to be issued under the Original
Mortgage, or any indenture supplemental thereto;

NOW, THEREFORE, THIS INDENTURE WITNESSETH that, in
consideration of the premises and of the acceptance or
purchase of the 2006 Bonds by the registered owners
thereof, and of the sum of one dollar, lawful money of
the United States of America, to the Company duly paid by
the Trustee at or before the execution and delivery of
this Thirty-Fourth Supplemental Indenture, the receipt
whereof is hereby acknowledged, the Company and the
Trustee, respectively, have entered into, executed and
delivered this Thirty-Fourth Supplemental Indenture, for
the uses and purposes hereinafter expressed, that is to
say:

Section 1. The Company has granted, bargained, sold,
released, conveyed, assigned, transferred, mortgaged,
pledged, set over and confirmed, and by these presents
does grant, bargain, sell, release, convey, assign,
transfer, mortgage, pledge, set over and confirm
(subject, however, to permitted encumbrances as defined
in the Original Mortgage), unto said American National
Bank and Trust Company of Chicago, as Trustee, as herein
provided, and its successors in the trusts declared in
the Original Mortgage and herein, all of the property,
real, personal and mixed, tangible and intangible, of
every kind, character and description which the Company
has acquired since the execution and delivery of the
Original Mortgage and now owns (except property, rights
and assets of a character similar to that excluded from
the lien and operation of the Mortgage by the Granting
Clauses of the Original Mortgage, which property, rights
and assets are excluded from the lien and operation of
the Mortgage only to the extent provided therein),
including, but without otherwise limiting the generality
of the foregoing, the following described property
situated within the State of Indiana:

                        PART I.

              ELECTRIC DISTRIBUTING SYSTEMS.

All electric distributing systems of the Company acquired
by it after May 1, 1940, the date of the Original
Mortgage, and located in the Counties of Bartholomew,
Boone, Daviess, Greene, Hamilton, Hancock, Hendricks,
Johnson, Knox, Madison, Marion, Monroe, Morgan, Owen,
Pike, Putnam, Shelby and Sullivan, State of Indiana; and
any additions to or extensions of any such systems,
together with the buildings, erections, structures,
transmission lines, power stations, sub-stations,
engines, boilers, condensers, pumps, turbines, machinery,
tools, conduits, manholes, insulators, dynamos, motors,
lamps, cables, wires, poles, towers, cross-arms, piers,
abutments, switchboard equipment, meters, appliances,
instruments, apparatus, appurtenances, maps, records,
ledgers, contracts, facilities and other property or
equipment used or provided for use in connection with the
construction, maintenance, repair and operation thereof;
together also with all of the rights, privileges, rights-
of-way, franchises, licenses, grants, liberties,
immunities, ordinances, permits and easements of the
Company in respect of the construction, maintenance,
repair and operation of said systems.

                      PART II.

      STEAM AND HOT WATER DISTRIBUTING SYSTEMS.

All the steam and hot water distributing systems acquired
by the Company after May 1, 1940, the date of the
Original Mortgage, and located in the City of
Indianapolis, Marion County, Indiana, and any additions
to or extensions of any such systems; together with the
buildings, erections, structures, boilers, heaters,
engines, tanks, pipe lines, mains, connections, service
pipes, meters, tools, instruments, appliances, apparatus,
facilities, machinery and other property and equipment
used or provided for use in the construction,
maintenance, repair and operation thereof; and together
also with all of the rights, privileges, rights-of-way,
franchises, licenses, grants, liberties, immunities,
ordinances, permits and easements of the Company in
respect of the construction, maintenance, repair and
operation of said systems.

                    PART III.

    INDETERMINATE PERMITS AND FRANCHISES.

All indeterminate permits, franchises, ordinances,
licenses, and other authorizations by or from any state,
county, municipality, or other governmental authority,
acquired by the Company after May 1, 1940, the date of
the Original Mortgage, including particularly, but not
limited to, any indeterminate permits
under the Public Service Commission Act of the State of
Indiana, and all Acts amendatory thereof and supplemental
thereto, and all right, title and interest therein now
owned by the Company, and all renewals, extensions and
modifications of said indeterminate permits, franchises,
ordinances, licenses, and other authorizations, and of
the indeterminate permits, franchises, ordinances,
licenses, and other authorizations referred to in Part
VII of the Granting Clauses of the Original Mortgage.

                    PART IV.

                OTHER PROPERTY.

All other property, whether real, personal or mixed
(except any in the Mortgage expressly excepted), now
owned by the Company and wheresoever situated, including
(without in anywise limiting or impairing by the
enumeration of the same the scope and intent of the
foregoing or of any general description contained in the
Mortgages) all lands, flowage rights, water rights,
flumes, raceways, dams, rights-of-way and roads; all
plants for the generation of electricity by water, steam
and/or other power, power houses, telephone systems,
water systems, steam heat and power plants, hot water
plants, sub-stations, transmission lines, distribution
systems, bridges, culverts and tracks; all offices,
buildings and structures and the equipment thereof; all
machinery, engines, boilers, dynamos, machines,
regulators, meters, transformers, generators and motors;
all appliances whether electrical, gas or mechanical,
conduits, cables and lines; all pipes whether for water,
steam heat and power, or other purposes; all mains and
pipes, service pipes, fittings, valves and connections,
poles, wires, tools, implements, apparatus, furniture and
chattels; all municipal franchises, indeterminate
permits, and other permits; all lines for the
transportation, transmission and/or distribution of
electric current, steam heat and power or water for any
purpose, including towers, poles, wires, cables, pipes,
conduits and all apparatus for use in connection
therewith; all real estate, lands, leases, leaseholds;
all contracts, whether heat, light, power, water or
street lighting contracts; all easements, servitudes,
licenses, permits, rights, powers, franchises,
privileges, rights-of-way and other rights in or relating
to real estate or the occupancy of the same and (except
as hereinafter or in the Mortgage expressly excepted) all
the right, title and interest of the Company in and to
all other property of any kind or nature appertaining to
and/or used and/or occupied and/or enjoyed in connection
with any property hereinbefore described or referred to;

Together with all and singular the tenements,
hereditaments and appurtenances belonging or in anywise
appertaining to the aforesaid property or any part
thereof, with the reversion and reversions, remainder and
remainders and (subject to the provisions of Section 64
of the Original Mortgage), the tools, rent, revenues,
issues, earnings, income, product and profits thereof,
and all the estate, right, title and interest and claim
whatsoever, at law as well as in equity, which the
Company now has or may hereafter acquire in and to the
aforesaid property, indeterminate permits, franchises,
ordinances, licenses
and other authorizations and every part and parcel
thereof.

Section 2. There shall be and is hereby established a
series of bonds, limited in aggregate principal amount to
Fifty-Eight Million Eight Hundred Thousand Dollars
($58,800,000) to be issued under and secured by the
Mortgage, to be designated "8% Series, due 2006", each of
which shall also bear the descriptive title "First
Mortgage Bonds"; said bonds shall mature on October 15,
2006, and shall be issued only as fully registered bonds
without coupons in the denomination of one thousand
dollars and any larger denomination which is a multiple
of one thousand dollars; they shall bear interest from
the beginning of the current interest period during which
each bond is dated, at the rate per annum designated in
the title thereof, payable semi-annually, on October 15
and April 15 of each year; and the principal of, premium,
if any, and interest on each said bond shall be payable
in lawful money of the United States of America at the
office or agency of the Company in the City of Chicago,
Illinois.  The person in whose name any such bond is
registered at the close of business on any record date
(as hereinafter defined) with respect to any interest
payment date shall be entitled to receive the interest
payable on such interest payment date, except if and to
the extent the Company shall default in the payment of
the interest due on such interest payment date, in which
case such defaulted interest shall be paid to the person
in whose name such bond is registered on the date of
payment of such defaulted interest or on a subsequent
record date for such payment if one shall have been
established as hereinafter provided.  A subsequent record
date with respect to payment of interest in default may
be established by or in behalf of the Company by notice
mailed to the holders of the 2006 Bonds not less than ten
(10) days preceding such record date, which record date
shall not be more than thirty (30) days prior to the
subsequent interest payment date.  The term "record date"
as used in this Section with respect to any regular
interest payment date shall mean the tenth day next
preceding such interest payment date, or, if such tenth
day shall be a legal holiday or a day on which banking
institutions in the City of Chicago, Illinois, are
authorized by law to close, the day next succeeding such
tenth day which shall not be a legal holiday or a day on
which such institutions are authorized to close.

American National Bank and Trust Company of Chicago is
hereby designated and appointed the office and agency of
the Company for the payment of the principal of, premium,
if any, and interest on the 2006 Bonds and for the
registration, transfer and exchange of such bonds as
hereinafter provided; all reference herein to the office
or agency of the Company for the payment of the principal
of, premium, if any, and interest on the 2006 Bonds, or
the registration, transfer or exchange thereof, being to
American National Bank and Trust Company of Chicago.  In
the event of the resignation or inability to act of
American National Bank and Trust Company of Chicago, then
a successor agent for all such purposes in the City of
Chicago, Illinois, shall be appointed by the Board of
Directors of the Company.

The 2006 Bonds shall be dated as of the date of
authentication thereof, except as otherwise provided in
Section 10 of the Original Mortgage.

The 2006 Bonds shall not be subject to redemption by the
Company prior to the maturity thereof except out of
monies deposited with the Trustee representing the
proceeds of mortgaged and pledged property taken by the
exercise of the power of eminent domain or otherwise as
provided in paragraph B of Section 69 of the Mortgage, in
which event the redemption price of the 2006 Bonds so to
be redeemed shall be the principal amount of such bonds
plus accrued interest thereon to the date of redemption.

At the option of the holder, any 2006 Bonds, upon
surrender thereof at said office or agency of the Company
together with a written instrument of transfer in form
approved by the Company duly executed by the holder or by
his duly authorized attorney, shall be exchangeable for a
like aggregate principal amount of fully registered bonds
of the same series of other authorized denominations.

The 2006 Bonds shall be transferable on the books of the
Company at said office or agency of the Company in the
City of Chicago, Illinois, by the registered holder
thereof, in person or by his duly authorized attorney,
upon surrender thereof for cancellation.

The Company shall not be required to make transfers or
exchanges of any of the 2006 Bonds for a period of ten
(10) days next preceding any interest payment date of
said bonds.

No charge shall be made upon any transfer or exchange of
any of the 2006 Bonds other than for any tax or taxes or
other governmental charge required to be paid by the
Company.

The 2006 Bonds shall be limited to an aggregate principal
amount of Fifty-Eight Million Eight Hundred Thousand
Dollars ($58,800,000) and shall be issued under the
provisions of Article VI and Article VII of the Original
Mortgage.

Section 3.  The 2006 Bonds, and the Trustee's Certificate
to be endorsed thereon, shall be in the following forms,
respectively:

[Form of Face of Bond]

     INDIANAPOLIS POWER & LIGHT COMPANY
     First Mortgage Bond, 8% Series, Due 2006
     Due October 15, 2006

No.                                       $

INDIANAPOLIS POWER & LIGHT COMPANY, a corporation of the
State of Indiana (hereinafter called the Company), for
value received, hereby promises to pay to
                                    or registered
assigns, on October 15, 2006, at the office or agency of
the Company in the City of Chicago, Illinois,
                             Dollars in lawful money of
the United States of America, and to pay to the
registered owner hereof interest thereon from the
fifteenth day of October or the fifteenth day of April
next preceding the date of this bond, at the rate of 8
per centum per annum in like lawful money, at said office
or agency on October 15 and April 15 in each year, until
the Company's obligation with respect to the payment of
such principal shall have been discharged.  The interest
payable hereunder on October 15 or April 15 will, subject
to the exception provided in Section 2 of the Thirty-
Fourth Supplemental Indenture hereinafter mentioned, be
paid to the person in whose name this bond is registered
at the close of business on the record date, which shall
be the tenth day next preceding such interest payment
date or, if such tenth day shall be a legal holiday or a
day on which banking institutions in the City of Chicago,
Illinois, are authorized by law to close, the day next
succeeding such tenth day which shall not be a legal
holiday or a day on which such institutions are
authorized to close.

REFERENCE IS MADE TO THE FURTHER PROVISIONS OF THIS BOND
SET FORTH ON THE REVERSE HEREOF.  SUCH FURTHER PROVISIONS
SHALL, FOR ALL PURPOSES, HAVE THE SAME EFFECT AS THOUGH
FULLY SET FORTH IN THIS PLACE.

This bond shall not become obligatory until American
National Bank and Trust Company of Chicago, the Trustee
under the Mortgage, or its successor thereunder, shall
have signed the form of certificate endorsed hereon.

IN WITNESS WHEREOF, Indianapolis Power & Light Company
has caused this Bond to be signed in its name by its
President or one of its Vice-Presidents, by his signature
or a facsimile thereof, and a facsimile of its corporate
seal to be imprinted hereon, attested by its Secretary or
one of its Assistant Secretaries, by his signature or a
facsimile thereof.

                     INDIANAPOLIS POWER & LIGHT COMPANY



Dated:               By_______________________________________
                                   President

Attest:

By_____________________________
           Secretary


[Form of Trustee's Certificate on Bonds]


     Trustee's Certificate

This Bond is one of the bonds, of the series herein
designated, provided for in the within-mentioned Mortgage
and Thirty-Fourth Supplemental Indenture.

                                   AMERICAN NATIONAL BANK AND
                                     TRUST COMPANY OF CHICAGO
                                                  Trustee



By______________________________________

Authorized Signature

[Form of Reverse Side of Bond]

     INDIANAPOLIS POWER & LIGHT COMPANY
     First Mortgage Bond, 8% Series, due 2006
     Due October 15, 2006

This Bond is one of an issue of bonds of the Company,
issuable in series, and is one of a series known as its
First Mortgage Bonds, 8% Series, due 2006 (herein
sometimes called the "2006 Bonds") limited in aggregate
principal amount to Fifty-Eight Million Eight Hundred
Thousand Dollars ($58,800,000) and established by a
Thirty-Fourth Supplemental Indenture, dated as of October
15, 1991, all bonds of all series issued and to be issued
under and equally secured (except insofar as any sinking
or other fund, established in accordance with the
provisions of the Mortgage hereinafter mentioned, may
afford additional security for the bonds of any
particular series) by a Mortgage and Deed of Trust, dated
as of May 1, 1940, executed by the Company to American
National Bank and Trust Company of Chicago, as Trustee
(which Mortgage and Deed of Trust as supplemented and
modified by all supplemental indentures thereto is
hereinafter referred to as the "Mortgage"), to which
Mortgage reference is made for a description of the
property mortgaged and pledged, the nature and extent of
the security, the rights of the bearers or registered
owners of the bonds in respect of such security, the
duties and immunities of the Trustee and terms and
conditions upon which the bonds are secured.

With the consent of the Company and to the extent
permitted by and as provided in the Mortgage, the rights
and obligations of the Company and/or of the holders of
the bonds and/or coupons and/or the terms and provisions
of the Mortgage and/or any instruments supplemental
thereto may be modified or altered by affirmative vote of
the holders of at least sixty-six and two-thirds per
centum (66-2/3%) in principal amount of the bonds
affected by such modification or alteration then
outstanding under the Mortgage (excluding bonds
disqualified from voting by reason of the Company's
interest therein as provided in the Mortgage); provided
that no such modification or alteration shall permit the
extension of the maturity of the principal of this bond
or the reduction in the rate of interest hereon or any
other modification in the terms of payment of such
principal or interest without the consent of the holder
hereof.  The principal hereof may be declared or may
become due and payable prior to the stated date of
maturity hereof, on the conditions, in the manner and at
the time set forth in the Mortgage, upon the occurrence
of a completed default as in the Mortgage provided.

The 2006 Bonds are issued only in fully registered form
without coupons in the denomination of one thousand
dollars and any larger denomination which is a multiple
of one thousand dollars.  In the manner and upon payment
of the charges hereinafter mentioned, the 2006 Bonds,
upon surrender thereof at the office or agency of the
Company in the City of Chicago, Illinois, together with a
written instrument of transfer in form approved by the
Company duly executed by the registered holder or by his
duly authorized attorney, are exchangeable for a like
aggregate principal amount of fully registered bonds of
the same series of other authorized denominations.

This bond is transferable as prescribed in the Mortgage
by the registered owner hereof in person, or by his duly
authorized attorney, at the office or agency of the
Company in the City of Chicago, Illinois, upon surrender
and cancellation of this bond and upon presentation of a
written instrument of transfer, duly executed and upon
payment of the charges hereinafter mentioned, and,
thereupon, a new fully registered bond of the same series
for a like principal amount will be issued to the
transferee in exchange hereof as provided in the
Mortgage.  The Company and the Trustee may deem and treat
the person in whose name this bond is registered as the
absolute owner hereof for the purpose of receiving
payment and for all other purposes.

No charge shall be made upon any transfer or exchange of
any of the 2006 Bonds other than for any tax or taxes or
other governmental charge required to be paid by the
Company.

The Company shall not be required to make transfers or
exchanges of any of the 2006 Bonds for a period of ten
(10) days next preceding any interest payment date of
said bonds.

The 2006 Bonds are not subject to redemption by the
Company prior to the maturity thereof except out of
monies deposited with the Trustee representing the
proceeds of mortgaged and pledged property taken by the
exercise of the power of eminent domain or otherwise as
provided in paragraph B of Section 69 of the Mortgage, in
which event the redemption price of the 2006 Bonds so to
be redeemed shall be the principal amount of such bonds
plus accrued interest thereon to the date of redemption.

No recourse shall be had for the payment of the principal
of or interest on this bond against any incorporator or
any past, present or future subscriber to the capital
stock, stockholder, officer or director of the Company or
of any predecessor or successor corporation, as such,
either directly or through the Company or any predecessor
or successor corporation, under any rule of law, statute
or constitution or by the enforcement of any assessment
or otherwise, all such liability of incorporators,
subscribers, stockholders, officers and directors, as
such, being waived and released by the terms of the
Mortgage.

Section 4. Until the 2006 Bonds in definitive form are
ready for delivery, the Company may execute, and upon its
request in writing the Trustee shall authenticate and
deliver, in lieu thereof, fully registered 2006 Bonds in
temporary form, as provided in Section 15 of the Original
Mortgage. Such bonds may, in lieu of the statement of the
specific redemption prices required to be set forth in
such bonds in definitive form, include a reference to
this Thirty-Fourth Supplemental Indenture for a statement
of such redemption prices.

Section 5. The covenant of the Company to make annual
payments to the Trustee for a Maintenance and Improvement
Fund as contained in Section 41 of the Original Mortgage
and in the first twenty-four Supplemental Indentures to
the Original Mortgage creating the several series of
First Mortgage Bonds presently outstanding under such
Supplemental Indentures shall not apply to, or be for the
benefit of the 2006 Bonds, and the Company reserves the
right, without any consent of, or other action by, the
holders of the 2006 Bonds, to amend, modify or delete the
provisions of the Mortgage relating to such Maintenance
and Improvement Fund, and by acceptance of the 2006
Bonds, the holders thereof waive any right or privilege
so to consent or take any other action with respect
thereto.

Section 6. The Company covenants that, so long as any of
the 2006 Bonds shall remain outstanding, it will comply
with all of the provisions of Section 47 of the Original
Mortgage, including the provisions with respect to
limitations on dividends and distributions and the
purchase and redemption of stock.

Section 7. The Trustee hereby accepts the trusts herein
declared, provided and created and agrees to perform the
same upon the terms and conditions herein and in the
Mortgage set forth and upon the following terms and
conditions:

The recitals contained herein and in the bonds shall be
taken as the statements of the Company and the Trustee
assumes no responsibility for the correctness of the
same. The Trustee makes no representations as to the
validity or adequacy of the security afforded hereby, or
as to the validity of this Thirty-Fourth Supplemental
Indenture or of the bonds issued hereunder.

Section 8. Whenever in this Thirty-Fourth Supplemental
Indenture either of the parties hereto is named or
referred to, this shall, subject to the provisions of
Article XVII of the Original Mortgage, be deemed to
include the successors or assigns of such party, and all
the covenants and agreements in this Thirty-Fourth
Supplemental Indenture contained by or on behalf of the
Company, or by or on behalf of the Trustee, shall,
subject as aforesaid, bind and inure to the benefit of
the respective successors and assigns of such parties,
whether so expressed or not.


Section 9. Nothing in this Thirty-Fourth Supplemental
Indenture, expressed or implied, is intended or shall be
construed to confer upon, or to give to, any person, co-
partnership or corporation, other than the parties hereto
and the holders of the bonds and coupons outstanding
under the Mortgage, any right, remedy, or claim under or
by reason of this Thirty-Fourth Supplemental Indenture or
any covenant, condition or stipulation hereof; and all
the covenants, conditions, stipulations, promises and
agreements in this Thirty-Fourth Supplemental Indenture
contained by or on behalf of the Company shall be for the
sole and exclusive benefit of the parties hereto and of
the holders of the bonds and of the coupons outstanding
under the Mortgage.

Section 10. The Company covenants that all of the terms,
provisions and conditions of the Mortgage shall be
applicable to the 2006 Bonds issued hereunder, except as
herein otherwise provided and except insofar as the same
may be inconsistent with the provisions of this Thirty-
Fourth Supplemental Indenture.

Section 11. This Thirty-Fourth Supplemental Indenture is
dated as of October 15, 1991, although executed and
delivered on the date of the acknowledgment hereof by the
Trustee; and shall be simultaneously executed and
delivered in several counterparts, and all such
counterparts executed and delivered, each as an original,
shall constitute but one and the same instrument.

In Witness Whereof, Indianapolis Power & Light Company,
party of the first part, has caused its corporate name to
be hereunto affixed and this instrument to be signed and
acknowledged by its President or a Vice-President, and
its corporate seal to be hereto affixed and attested by
its Secretary or an Assistant Secretary, for and in its
behalf, and American National Bank and Trust Company of
Chicago, party of the second part, as Trustee, has caused
its corporate name to be hereunto affixed and this
instrument to be signed and acknowledged by one of its
Vice-Presidents, and its corporate seal to be hereto
affixed and attested by one of its Assistant Secretaries,
all as of the day, month and year first above written.


                       Indianapolis Power & Light Company

(SEAL)

                       By    /s/ Marcus E. Woods
                             Marcus E. Woods, Vice-President.

Attest:


/s/ Clark L. Snyder,
Clark L. Snyder, Assistant Secretary.


                        American National Bank and Trust
                          Company of Chicago,
(SEAL)

                        By  /s/ Ronald B. Bremen
                            Ronald B. Bremen, Vice-President.



Attest:


/s/ Robert M. Selangowski
Robert M. Selangowski,
Assistant Secretary.




State of Indiana     )
                     )  ss.:
County of Marion     )

On this 16th day of October, in the year 1991, before me,
a Notary Public in and for the County and State
aforesaid, personally came Marcus E. Woods, Vice-
President, and Clark L. Snyder, Assistant Secretary, of
Indianapolis Power & Light Company, one of the
corporations described in and which executed the
foregoing instrument, to me personally known and known to
me personally to be such Vice-President, and Assistant
Secretary, respectively. Said Marcus E. Woods, and Clark
L. Snyder being by me severally duly sworn did depose and
say that the said Marcus E. Woods resides in Hendricks
County, Indiana and the said Clark L. Snyder resides in
Marion County, Indiana; that said Marcus E. Woods is Vice-
President and said Clark L. Snyder is Assistant Secretary
of said Indianapolis Power & Light Company; that each of
them knows the corporate seal of said corporation; that
the seal affixed to said instrument and bearing the name
of said corporation is such corporate seal; that it was
so affixed by order of the Board of Directors of said
corporation; and that each of them signed his name
thereto by like order; and each of them acknowledged the
execution of said instrument on behalf of said
corporation to be his free and voluntary act and deed and
the free and voluntary act and deed of said corporation,
for the uses and purposes therein set forth.

In Witness Whereof, I have hereunto set my hand and
affixed my official seal this 16th day of October, 1991.


                          /s/ Gloria K. Bryant
                          Gloria K. Bryant, Notary Public.

My Commission Expires:
  June 11, 1995

My County of Residence is:
  Marion


(Notarial Seal)



State of Illinois    )
                     )  ss.:
County of Cook       )


On this 16th day of October, in the year 1991, before me,
a Notary Public in and for the County and State
aforesaid, personally came Ronald B. Bremen, Vice-
President, and Robert M. Selangowski, Assistant
Secretary, of American National Bank and Trust Company of
Chicago, one of the corporations described in and which
executed the foregoing instrument, to me personally known
and known to me personally to be such Vice-President and
Assistant Secretary, respectively. Said Ronald B. Bremen
and Robert M. Selangowski, being by me severally sworn
did depose and say that the said Ronald B. Bremen resides
in Glencoe, Illinois, and that the said Robert M.
Selangowski resides in Lansing, Illinois; that said
Ronald B. Bremen is Vice-President and said Robert M.
Selangowski is Assistant Secretary of said American
National Bank and Trust Company of Chicago; that each of
them knows the corporate seal of said corporation; that
the seal affixed to said instrument and bearing the name
of said corporation is such corporate seal; that it was
so affixed by authority of the Board of Directors of said
corporation; that each of them signed his name thereto by
like authority; and each of them acknowledged the
execution of said instrument on behalf of said
corporation to be his free and voluntary act and deed and
the free and voluntary act and deed of said corporation,
for the uses and purposes therein set forth.

In Witness Whereof, I have hereunto set my hand and
affixed my official seal this 16th day of October, 1991.


                          /s/ Bernadette G. Janairo
                              Bernadette G. Janairo,
                              Notary Public.
(Notarial Seal)

My Commission Expires: May 22, 1994


My County of Residence is:
  Cook


                    This instrument was prepared by
                                Marcus E. Woods,
                                Attorney at Law
<PAGE>

                                                                   Exhibit 4.4.5

                     INDIANAPOLIS POWER & LIGHT COMPANY

                                      TO

                       AMERICAN NATIONAL BANK AND TRUST
                              COMPANY OF CHICAGO
                                                TRUSTEE

                                ---------------

                      THIRTY-FIFTH SUPPLEMENTAL INDENTURE

                                ---------------

                         DATED AS OF AUGUST 1, 1992

                      ESTABLISHING FIRST MORTGAGE BONDS,

                            7-3/8% SERIES, DUE 2007




                               TABLE OF CONTENTS*

                                       of

                      THIRTY-FIFTH SUPPLEMENTAL INDENTURE

                                       of

                       INDIANAPOLIS POWER & LIGHT COMPANY


                                                                PAGE
                                                                ----
Parties.....................................................      1
Recitals....................................................      1
Section 1    Granting clauses...............................      3
               Part I Electric Distributing Systems.........      3
               Part II Steam and Hot Water Distributing
                         Systems............................      4
               Part III Indeterminate Permits and Franchises      4
               Part IV Other Property.......................      5
             General and after-acquired title...............      6
Section 2    Designation of Thirty-Third series of bonds and
               kind and denominations thereof...............      6
             Record date for payment of interest............      7
             Designation of American National Bank and Trust
               Company of Chicago as paying agent...........      7
             Exchange of bonds..............................      7
             Transfer of bonds..............................      8
             Series limited to $80,000,000..................      8
Section 3    Form of fully registered bond..................      8
             Form of Trustee's certificate on bonds.........      8
Section 4    Temporary bonds................................     13
Section 5    Annual Payments for Maintenance and Improvement
               Fund.........................................     13
Section 6    Compliance with Section 47 of Original Mortgage
               with respect to dividend restrictions........     14
Section 7    Acceptance of trusts by Trustee and conditions
              of acceptance.................................     14
Section 8    Successors and assigns.........................     14
Section 9    Limitation of rights hereunder.................     14
_________________________
*Table of Contents is not part of the Thirty-Fifth
Supplemental Indenture and should not be considered such.
It is included herein only for purposes of convenient
reference.

PAGE

- ----
Section 10   Compliance with terms, provisions and
               conditions of Mortgage.......................     15
Section 11   Execution in counterparts......................     15
Testimonium.................................................     16
Signatures and Seals........................................     16
Acknowledgements............................................     17

                                       ii


THIS THIRTY-FIFTH SUPPLEMENTAL INDENTURE, dated as of
August 1, 1992, between INDIANAPOLIS POWER & LIGHT
COMPANY, a corporation of the State of Indiana,
hereinafter sometimes called the "Company," party of the
first part, and AMERICAN NATIONAL BANK AND TRUST COMPANY
OF CHICAGO, a national banking association, as Trustee,
hereinafter sometimes called the "Trustee," party of the
second part;

WHEREAS, the Company by a Mortgage and Deed of Trust
(hereinafter sometimes called the "Original Mortgage"
when referred to as existing prior to any supplement
thereto or modification thereof, and the "Mortgage" when
referred to as now or heretofore supplemented and
modified) dated as of May 1, 1940, made to said American
National Bank and Trust Company of Chicago, as Trustee,
to secure the payment of the bonds issued from time to
time under the Mortgage for the purposes of and subject
to the limitations specified in the Mortgage, and to
secure the performance of the covenants therein
contained, conveyed to the Trustee thereunder upon
certain trusts, terms and conditions, and with and
subject to certain provisos and covenants therein
contained, all and singular the property, rights and
franchises which the Company then owned or should
thereafter acquire, excepting the property expressly
excepted by the terms of the Original Mortgage or any
indenture supplemental thereto, to which Mortgage
reference is hereby made for greater certainty; and

WHEREAS, the Original Mortgage has been supplemented and
modified by supplemental indentures dated as of May 1,
1942, as of February 1, 1948, as of April 1, 1949, as of
October 1, 1949, as of February 1, 1951, as of March 1,
1953, as of June 1, 1956, as of March 1, 1958, as of
October 1, 1960, as of August 1, 1964, as of April 1,
1966, as of May 1, 1967, as of May 1, 1968, as of October
1, 1970, as of March 1, 1972, as of March 15, 1973, as of
February 15, 1974, as of August 15, 1974, as of September
15, 1975, as of June 1, 1976, as of July 1, 1976, as of
August 1, 1977, as of September 1, 1978, as of August 1,
1981, as of November 1, 1983, as of November 1, 1984, as
of December 1, 1984, as of September 1, 1985, as of
October 1, 1986, as of June 1, 1989, as of August 1,
1989, and as of October 15, 1991;

WHEREAS, Section 8 of the Original Mortgage provides,
among other things, that the form of each series of bonds
(other than the initial issue of bonds) issued thereunder
shall be established by an indenture supplemental thereto
authorized by resolution of the Board of Directors of the
Company, and that the form of each series, as established
by the Board of Directors, shall specify the descriptive
title of the bonds and various other terms thereof, and
may also contain such other provisions as the Board of
Directors may, in its discretion, cause to be inserted
therein expressing or referring to the terms and
conditions upon which such bonds are to be issued and
secured under the Original Mortgage or any indenture
supplemental thereto or in modification thereof; and

WHEREAS, the Company now desires to provide for the
establishment, execution, authentication and delivery
under the Mortgage of bonds of a series to be known as
its "First Mortgage Bonds, 7-3/8% Series, due 2007" (the
bonds of said series being hereinafter sometimes referred
to as the "2007 Bonds"), limited to the aggregate
principal amount of Eighty Million Dollars ($80,000,000);
and

WHEREAS, all things necessary to make the 2007 Bonds
hereinafter described, when duly executed by the Company
and authenticated and delivered by the Trustee, valid,
binding and legal obligations of the Company, and to make
this Thirty-Fifth Supplemental Indenture a valid and
binding agreement supplemental to the Original Mortgage,
have been done and performed; and

WHEREAS, the execution and delivery by the Company of
this Thirty-Fifth Supplemental Indenture, and the terms
of the 2007 Bonds, have been duly authorized by the Board
of Directors of the Company by appropriate resolutions of
said Board; and

WHEREAS, it is provided in and by the Original Mortgage
that the Company will execute and deliver such further
instruments and do such further acts as may be necessary
or proper to carry out more effectually the purposes of
the Mortgage, and to make subject to the lien thereof any
property thereafter acquired and intended to be subject
to the lien thereof; and

WHEREAS, the Company has, since the date of execution and
delivery of the Original Mortgage, purchased and acquired
property and desires by this Thirty-Fifth Supplemental
Indenture specifically to convey to the Trustee such
property for the better protection and security of the
bonds issued and to be issued under the Original
Mortgage, or any indenture supplemental thereto;

NOW, THEREFORE, THIS INDENTURE WITNESSETH that, in
consideration of the premises and of the acceptance or
purchase of the 2007 Bonds by the registered owners
thereof, and of the sum of one dollar, lawful money of
the United States of America, to the Company duly paid by
the Trustee at or before the execution and delivery of
this Thirty-Fifth Supplemental Indenture, the receipt
whereof is hereby acknowledged, the Company and the
Trustee, respectively, have entered into, executed and
delivered this Thirty-Fifth Supplemental Indenture, for
the uses and purposes hereinafter expressed, that is to
say:

Section 1. The Company has granted, bargained, sold,
released, conveyed, assigned, transferred, mortgaged,
pledged, set over and confirmed, and by these presents
does grant, bargain, sell, release, convey, assign,
transfer, mortgage, pledge, set over and confirm
(subject, however, to permitted encumbrances as defined
in the Original Mortgage), unto said American National
Bank and Trust Company of Chicago, as Trustee, as herein
provided, and its successors in the trusts declared in
the Original Mortgage and herein, all of the property,
real, personal and mixed, tangible and intangible, of
every kind, character and description which the Company
has acquired since the execution and delivery of the
Original Mortgage and now owns (except property, rights
and assets of a character similar to that excluded from
the lien and operation of the Mortgage by the Granting
Clauses of the Original Mortgage, which property, rights
and assets are excluded from the lien and operation of
the Mortgage only to the extent provided therein),
including, but without otherwise limiting the generality
of the foregoing, the following described property
situated within the State of Indiana:

                      PART I.

          ELECTRIC DISTRIBUTING SYSTEMS.

All electric distributing systems of the Company acquired
by it after May 1, 1940, the date of the Original
Mortgage, and located in the Counties of Bartholomew,
Boone, Daviess, Greene, Hamilton, Hancock, Hendricks,
Johnson, Knox, Madison, Marion, Monroe, Morgan, Owen,
Pike, Putnam, Shelby and Sullivan, State of Indiana; and
any additions to or extensions of any such systems,
together with the buildings, erections, structures,
transmission lines, power stations, sub-stations,
engines, boilers, condensers, pumps, turbines, machinery,
tools, conduits, manholes, insulators, dynamos, motors,
lamps, cables, wires, poles, towers, cross-arms, piers,
abutments, switchboard equipment, meters, appliances,
instruments, apparatus, appurtenances, maps, records,
ledgers, contracts, facilities and other property or
equipment used or provided for use in connection with the
construction, maintenance, repair and operation thereof;
together also with all of the rights, privileges, rights-
of-way, franchises, licenses, grants, liberties,
immunities, ordinances, permits and easements of the
Company in respect of the construction, maintenance,
repair and operation of said systems.

                       PART II.

    STEAM AND HOT WATER DISTRIBUTING SYSTEMS.

All the steam and hot water distributing systems acquired
by the Company after May 1, 1940, the date of the
Original Mortgage, and located in the City of
Indianapolis, Marion County, Indiana, and any additions
to or extensions of any such systems; together with the
buildings, erections, structures, boilers, heaters,
engines, tanks, pipe lines, mains, connections, service
pipes, meters, tools, instruments, appliances, apparatus,
facilities, machinery and other property and equipment
used or provided for use in the construction,
maintenance, repair and operation thereof; and together
also with all of the rights, privileges, rights-of-way,
franchises, licenses, grants, liberties, immunities,
ordinances, permits and easements of the Company in
respect of the construction, maintenance, repair and
operation of said systems.

                     PART III.

      INDETERMINATE PERMITS AND FRANCHISES.

All indeterminate permits, franchises, ordinances,
licenses, and other authorizations by or from any state,
county, municipality, or other governmental authority,
acquired by the Company after May 1, 1940, the date of
the Original Mortgage, including particularly, but not
limited to, any indeterminate permits
under the Public Service Commission Act of the State of
Indiana, and all Acts amendatory thereof and supplemental
thereto, and all right, title and interest therein now
owned by the Company, and all renewals, extensions and
modifications of said indeterminate permits, franchises,
ordinances, licenses, and other authorizations, and of
the indeterminate permits, franchises, ordinances,
licenses, and other authorizations referred to in Part
VII of the Granting Clauses of the Original Mortgage.

                   PART IV.

               OTHER PROPERTY.

All other property, whether real, personal or mixed
(except any in the Mortgage expressly excepted), now
owned by the Company and wheresoever situated, including
(without in anywise limiting or impairing by the
enumeration of the same the scope and intent of the
foregoing or of any general description contained in the
Mortgages) all lands, flowage rights, water rights,
flumes, raceways, dams, rights-of-way and roads; all
plants for the generation of electricity by water, steam
and/or other power, power houses, telephone systems,
water systems, steam heat and power plants, hot water
plants, sub-stations, transmission lines, distribution
systems, bridges, culverts and tracks; all offices,
buildings and structures and the equipment thereof; all
machinery, engines, boilers, dynamos, machines,
regulators, meters, transformers, generators and motors;
all appliances whether electrical, gas or mechanical,
conduits, cables and lines; all pipes whether for water,
steam heat and power, or other purposes; all mains and
pipes, service pipes, fittings, valves and connections,
poles, wires, tools, implements, apparatus, furniture and
chattels; all municipal franchises, indeterminate
permits, and other permits; all lines for the
transportation, transmission and/or distribution of
electric current, steam heat and power or water for any
purpose, including towers, poles, wires, cables, pipes,
conduits and all apparatus for use in connection
therewith; all real estate, lands, leases, leaseholds;
all contracts, whether heat, light, power, water or
street lighting contracts; all easements, servitudes,
licenses, permits, rights, powers, franchises,
privileges, rights-of-way and other rights in or relating
to real estate or the occupancy of the same and (except
as hereinafter or in the Mortgage expressly excepted) all
the right, title and interest of the Company in and to
all other property of any kind or nature appertaining to
and/or used and/or occupied and/or enjoyed in connection
with any property hereinbefore described or referred to;

Together with all and singular the tenements,
hereditaments and appurtenances belonging or in anywise
appertaining to the aforesaid property or any part
thereof, with the reversion and reversions, remainder and
remainders and (subject to the provisions of Section 64
of the Original Mortgage), the tools, rents, revenues,
issues, earnings, income, product and profits thereof,
and all the estate, right, title and interest and claim
whatsoever, at law as well as in equity, which the
Company now has or may hereafter acquire in and to the
aforesaid property, indeterminate permits, franchises,
ordinances, licenses
and other authorizations and every part and parcel
thereof.

Section 2. There shall be and is hereby established a
series of bonds, limited in aggregate principal amount to
Eighty Million Dollars ($80,000,000) to be issued under
and secured by the Mortgage, to be designated "7-3/8%
Series, due 2007", each of which shall also bear the
descriptive title "First Mortgage Bonds"; said bonds
shall mature on August 1, 2007, and shall be issued only
as fully registered bonds without coupons in the
denomination of one thousand dollars and any larger
denomination which is a whole multiple of one thousand
dollars; they shall bear interest from the beginning of
the current interest period during which each bond is
dated, at the rate per annum designated in the title
thereof, payable semi-annually, on August 1 and February
1 of each year; and the principal of, premium, if any,
and interest on each said bond shall be payable in lawful
money of the United States of America at the office or
agency of the Company in the City of Chicago, Illinois.
The person in whose name any such bond is registered at
the close of business on any record date (as hereinafter
defined) with respect to any interest payment date shall
be entitled to receive the interest payable on such
interest payment date, except if and to the extent the
Company shall default in the payment of the interest due
on such interest payment date, in which case such
defaulted interest shall be paid to the person in whose
name such bond is registered on the date of payment of
such defaulted interest or on a subsequent record date
for such payment if one shall have been established as
hereinafter provided.  A subsequent record date with
respect to payment of interest in default may be
established by or in behalf of the Company by notice
mailed to the holders of the 2007 Bonds not less than ten
(10) days preceding such record date, which record date
shall not be more than thirty (30) days prior to the
subsequent interest payment date.  The term "record date"
as used in this Section with respect to any regular
interest payment date shall mean the tenth day next
preceding such interest payment date, or, if such tenth
day shall be a legal holiday or a day on which banking
institutions in the City of Chicago, Illinois, are
authorized by law to close, the day next succeeding such
tenth day which shall not be a legal holiday or a day on
which such institutions are authorized to close.

American National Bank and Trust Company of Chicago is
hereby designated and appointed the office and agency of
the Company for the payment of the principal of, premium,
if any, and interest on the 2007 Bonds and for the
registration, transfer and exchange of such bonds as
hereinafter provided; all reference herein to the office
or agency of the Company for the payment of the principal
of, premium, if any, and interest on the 2007 Bonds, or
the registration, transfer or exchange thereof, being to
American National Bank and Trust Company of Chicago.  In
the event of the resignation or inability to act of
American National Bank and Trust Company of Chicago, then
a successor agent for all such purposes in the City of
Chicago, Illinois, shall be appointed by the Board of
Directors of the Company.

The 2007 Bonds shall be dated as of the date of
authentication thereof, except as otherwise provided in
Section 10 of the Original Mortgage.

The 2007 Bonds shall not be subject to redemption by the
Company prior to the maturity thereof except out of
monies deposited with the Trustee representing the
proceeds of mortgaged and pledged property taken by the
exercise of the power of eminent domain or otherwise as
provided in paragraph B of Section 69 of the Mortgage, in
which event the redemption price of the 2007 Bonds so to
be redeemed shall be the principal amount of such bonds
plus accrued interest thereon to the date of redemption.

At the option of the holder, any 2007 Bond, upon
surrender thereof at said office or agency of the Company
together with a written instrument of transfer in form
approved by the Company duly executed by the holder or by
his duly authorized attorney, shall be exchangeable for a
like aggregate principal amount of fully registered bonds
of the same series of other authorized denominations.

The 2007 Bonds shall be transferable on the books of the
Company at said office or agency of the Company in the
City of Chicago, Illinois, by the registered holder
thereof, in person or by his duly authorized attorney,
upon surrender thereof for cancellation.

The Company shall not be required to make transfers or
exchanges of any of the 2007 Bonds for a period of ten
(10) days next preceding any interest payment date of
said bonds.

No charge shall be made upon any transfer or exchange of
any of the 2007 Bonds other than for any tax or taxes or
other governmental charge required to be paid by the
Company.

The 2007 Bonds shall be limited to an aggregate principal
amount of Eighty Million Dollars ($80,000,000) and shall
be issued under the provisions of Article VII of the
Original Mortgage.

Section 3.  The 2007 Bonds and the Trustee's Certificate
to be endorsed thereon, shall be in the following forms,
respectively:

[Form of Face of Bond]

     INDIANAPOLIS POWER & LIGHT COMPANY
     First Mortgage Bond, 7-3/8% Series, Due 2007
     Due August 1, 2007

No.                                          $

INDIANAPOLIS POWER & LIGHT COMPANY, a corporation of the
State of Indiana (hereinafter called the "Company"), for
value received, hereby promises to pay to
or registered assigns, on August 1, 2007, at the office
or agency of the Company in the City of Chicago,
Illinois,
                             Dollars in lawful money of
the United States of America, and to pay to the
registered owner hereof interest thereon from the first
day of August or the first day of February next preceding
the date of this bond, at the rate of 7-3/8 per centum
per annum in like lawful money, at said office or agency
on August 1 and February 1 in each year, until the
Company's obligation with respect to the payment of such
principal shall have been discharged.  The interest
payable hereunder on August 1 or February 1 will, subject
to the exception provided in Section 2 of the Thirty-
Fifth Supplemental Indenture hereinafter mentioned, be
paid to the person in whose name this bond is registered
at the close of business on the record date, which shall
be the tenth day next preceding such interest payment
date or, if such tenth day shall be a legal holiday or a
day on which banking institutions in the City of Chicago,
Illinois, are authorized by law to close, the day next
succeeding such tenth day which shall not be a legal
holiday or a day on which such institutions are
authorized to close.

REFERENCE IS MADE TO THE FURTHER PROVISIONS OF THIS BOND
SET FORTH ON THE REVERSE HEREOF.  SUCH FURTHER PROVISIONS
SHALL, FOR ALL PURPOSES, HAVE THE SAME EFFECT AS THOUGH
FULLY SET FORTH IN THIS PLACE.

IN WITNESS WHEREOF, Indianapolis Power & Light Company
has caused this Bond to be signed in its name by its
President or one of its Vice-Presidents, by his signature
or a facsimile thereof, and a facsimile of its corporate
seal to be imprinted hereon, attested by its Secretary or
one of its Assistant Secretaries, by his signature or a
facsimile thereof.

                      INDIANAPOLIS POWER & LIGHT COMPANY



Dated:                By_______________________________________
                                      President

Attest:

By_____________________________
           Secretary


[Form of Trustee's Certificate on Bonds]


     Trustee's Certificate

This Bond is one of the bonds, of the series herein
designated, provided for in the within-mentioned Mortgage
and Thirty-Fifth Supplemental Indenture.

                        AMERICAN NATIONAL BANK AND
                          TRUST COMPANY OF CHICAGO
                                             Trustee



By______________________________________

Authorized Signature

[Form of Reverse Side of Bond]

     INDIANAPOLIS POWER & LIGHT COMPANY
     First Mortgage Bond, 7-3/8% Series, due 2007
     Due August 1, 2007

This Bond is one of an issue of bonds of the Company,
issuable in series, and is one of a series known as its
First Mortgage Bonds, 7-3/8% Series, due 2007 (herein
sometimes called the "2007 Bonds") limited in aggregate
principal amount to Eighty Million Dollars ($80,000,000)
and established by a Thirty-Fifth Supplemental Indenture,
dated as of August 1, 1992, all bonds of all series
issued and to be issued under and equally secured (except
insofar as any sinking or other fund, established in
accordance with the provisions of the Mortgage
hereinafter mentioned, may afford additional security for
the bonds of any particular series) by a Mortgage and
Deed of Trust, dated as of May 1, 1940, executed by the
Company to American National Bank and Trust Company of
Chicago, as Trustee (which Mortgage and Deed of Trust as
supplemented and modified by all supplemental indentures
thereto is hereinafter referred to as the "Mortgage"), to
which Mortgage reference is made for a description of the
property mortgaged and pledged, the nature and extent of
the security, the rights of the bearers or registered
owners of the bonds in respect of such security, the
duties and immunities of the Trustee and terms and
conditions upon which the bonds are secured.

With the consent of the Company and to the extent
permitted by and as provided in the Mortgage, the rights
and obligations of the Company and/or of the holders of
the bonds and/or coupons and/or the terms and provisions
of the Mortgage and/or any instruments supplemental
thereto may be modified or altered by affirmative vote of
the holders of at least sixty-six and two-thirds per
centum (66-2/3%) in principal amount of the bonds
affected by such modification or alteration then
outstanding under the Mortgage (excluding bonds
disqualified from voting by reason of the Company's
interest therein as provided in the Mortgage); provided
that no such modification or alteration shall permit the
extension of the maturity of the principal of this bond
or the reduction in the rate of interest hereon or any
other modification in the terms of payment of such
principal or interest without the consent of the holder
hereof.  The principal hereof may be declared or may
become due and payable prior to the stated date of
maturity hereof, on the conditions, in the manner and at
the time set forth in the Mortgage, upon the occurrence
of a completed default as in the Mortgage provided.

The 2007 Bonds are issuable only in fully registered form
without coupons in the denomination of one thousand
dollars and any larger denomination which is a multiple
of one thousand dollars.  In the manner and upon payment
of the charges hereinafter mentioned, the 2007 Bonds,
upon surrender thereof at the office or agency of the
Company in the City of Chicago, Illinois, together with a
written instrument of transfer in form approved by the
Company duly executed by the registered holder or by his
duly authorized attorney, are exchangeable for a like
aggregate principal amount of fully registered bonds of
the same series of other authorized denominations.

This bond is transferable as prescribed in the Mortgage
by the registered owner hereof in person, or by his duly
authorized attorney, at the office or agency of the
Company in the City of Chicago, Illinois, upon surrender
and cancellation of this bond and upon presentation of a
written instrument of transfer, duly executed and upon
payment of the charges hereinafter mentioned, and,
thereupon, a new fully registered bond of the same series
for a like principal amount will be issued to the
transferee in exchange hereof as provided in the
Mortgage.  The Company and the Trustee may deem and treat
the person in whose name this bond is registered as the
absolute owner hereof for the purpose of receiving
payment and for all other purposes.

No charge shall be made upon any transfer or exchange of
any of the 2007 Bonds other than for any tax or taxes or
other governmental charge required to be paid by the
Company.

The Company shall not be require to make transfers or
exchanges of any of the 2007 Bonds for a period of ten
(10) days next preceding any interest payment date of
said bonds.

The 2007 Bonds are not subject to redemption by the
Company prior to the maturity thereof except out of
monies deposited with the Trustee representing the
proceeds of mortgaged and pledged property taken by the
exercise of the power of eminent domain or otherwise as
provided in paragraph B of Section 69 of the Mortgage, in
which event the redemption price of the 2007 Bonds so to
be redeemed shall be the principal amount of such bonds
plus accrued interest thereon to the date of redemption.

No recourse shall be had for the payment of the principal
of or interest on this bond against any incorporator or
any past, present or future subscriber to the capital
stock, stockholder, officer or director of the Company or
of any predecessor or successor corporation, as such,
either directly or through the Company or any predecessor
or successor corporation, under any rule of law, statute
or constitution or by the enforcement of any assessment
or otherwise, all such liability of incorporators,
subscribers, stockholders, officers and directors, as
such, being waived and released by the terms of the
Mortgage.

Section 4. Until the 2007 Bonds in definitive form are
ready for delivery, the Company may execute, and upon its
request in writing the Trustee shall authenticate and
deliver, in lieu thereof, fully registered 2007 Bonds in
temporary form, as provided in Section 15 of the Original
Mortgage. Such bonds may, in lieu of the statement of the
specific redemption prices required to be set forth in
such bonds in definitive form, include a reference to
this Thirty-Fifth Supplemental Indenture for a statement
of such redemption prices.

Section 5. The covenant of the Company to make annual
payments to the Trustee for a Maintenance and Improvement
Fund as contained in Section 41 of the Original Mortgage
and in the first twenty-four Supplemental Indentures to
the Original Mortgage creating the several series of
First Mortgage Bonds presently outstanding under such
Supplemental Indentures shall not apply to, or be for the
benefit of the 2007 Bonds, and the Company reserves the
right, without any consent of, or other action by, the
holders of the 2007 Bonds, to amend, modify or delete the
provisions of the Mortgage relating to such Maintenance
and Improvement Fund, and by acceptance of the 2007
Bonds, the holders thereof waive any right or privilege
so to consent or take any other action with respect
thereto.

Section 6. The Company covenants that, so long as any of
the 2007 Bonds shall remain outstanding, it will comply
with all of the provisions of Section 47 of the Original
Mortgage, including the provisions with respect to
limitations on dividends and distributions and the
purchase and redemption of stock.

Section 7. The Trustee hereby accepts the trusts herein
declared, provided and created and agrees to perform the
same upon the terms and conditions herein and in the
Mortgage set forth and upon the following terms and
conditions:

The recitals contained herein and in the bonds shall be
taken as the statements of the Company and the Trustee
assumes no responsibility for the correctness of the
same. The Trustee makes no representations as to the
validity or adequacy of the security afforded hereby, or
as to the validity of this Thirty-Fifth Supplemental
Indenture or of the bonds issued hereunder.

Section 8. Whenever in this Thirty-Fifth Supplemental
Indenture either of the parties hereto is named or
referred to, this shall, subject to the provisions of
Article XVII of the Original Mortgage, be deemed to
include the successors or assigns of such party, and all
the covenants and agreements in this Thirty-Fifth
Supplemental Indenture contained by or on behalf of the
Company, or by or on behalf of the Trustee, shall,
subject as aforesaid, bind and inure to the benefit of
the respective successors and assigns of such parties,
whether so expressed or not.


Section 9. Nothing in this Thirty-Fifth Supplemental
Indenture, expressed or implied, is intended or shall be
construed to confer upon, or to give to, any person, co-
partnership or corporation, other than the parties hereto
and the holders of the bonds and coupons outstanding
under the Mortgage, any right, remedy, or claim under or
by reason of this Thirty-Fifth Supplemental Indenture or
any covenant, condition or stipulation hereof; and all
the covenants, conditions, stipulations, promises and
agreements in this Thirty-Fifth Supplemental Indenture
contained by or on behalf of the Company shall be for the
sole and exclusive benefit of the parties hereto and of
the holders of the bonds and of the coupons outstanding
under the Mortgage.

Section 10. The Company covenants that all of the terms,
provisions and conditions of the Mortgage shall be
applicable to the 2007 Bonds issued hereunder, except as
herein otherwise provided and except insofar as the same
may be inconsistent with the provisions of this Thirty-
Fifth Supplemental Indenture.

Section 11. This Thirty-Fifth Supplemental Indenture is
dated as of August 1, 1992, although executed and
delivered on the date of the acknowledgment hereof by the
Trustee; and shall be simultaneously executed and
delivered in several counterparts, and all such
counterparts executed and delivered, each as an original,
shall constitute but one and the same instrument.

In Witness Whereof, Indianapolis Power & Light Company,
party of the first part, has caused its corporate name to
be hereunto affixed and this instrument to be signed and
acknowledged by its President or a Vice-President, and
its corporate seal to be hereto affixed and attested by
its Secretary or an Assistant Secretary, for and in its
behalf, and American National Bank and Trust Company of
Chicago, party of the second part, as Trustee, has caused
its corporate name to be hereunto affixed and this
instrument to be signed and acknowledged by one of its
Vice-Presidents, and its corporate seal to be hereto
affixed and attested by one of its Assistant Secretaries,
all as of the day, month and year first above written.


                           Indianapolis Power & Light Company

(SEAL)

Attest:                    By    /s/ Marcus E. Woods
                                 Marcus E. Woods,
                                 Vice-President
/s/ Clark L. Snyder,
Clark L. Snyder,
Assistant Secretary


                            American National Bank and Trust
                              Company of Chicago,
(SEAL)

Attest:                     By  /s/ Ronald B. Bremen
                                Ronald B. Bremen,
                                Vice-President

/s/ Robert M. Selangowski
Robert M. Selangowski,
Assistant Secretary.




State of Indiana     )
                     )  ss.:
County of Marion     )

On this 31st day of July, in the year 1992, before me, a
Notary Public in and for the County and State aforesaid,
personally came Marcus E. Woods, Vice-President, and
Clark L. Snyder, Assistant Secretary, of Indianapolis
Power & Light Company, one of the corporations described
in and which executed the foregoing instrument, to me
personally known and known to me personally to be such
Vice-President, and Assistant Secretary, respectively.
Said Marcus E. Woods, and Clark L. Snyder being by me
severally duly sworn did depose and say that the said
Marcus E. Woods resides in Hendricks County, Indiana and
the said Clark L. Snyder resides in Marion County,
Indiana; that said Marcus E. Woods is Vice-President and
said Clark L. Snyder is Assistant Secretary of said
Indianapolis Power & Light Company; that each of them
knows the corporate seal of said corporation; that the
seal affixed to said instrument and bearing the name of
said corporation is such corporate seal; that it was so
affixed by order of the Board of Directors of said
corporation; and that each of them signed his name
thereto by like order; and each of them acknowledged the
execution of said instrument on behalf of said
corporation to be his free and voluntary act and deed and
the free and voluntary act and deed of said corporation,
for the uses and purposes therein set forth.

In Witness Whereof, I have hereunto set my hand and
affixed my official seal this 31st day of July, 1992.


                           /s/ Gloria K. Bryant
                           Gloria K. Bryant
                           Notary Public

My Commission Expires:
  June 11, 1995

My County of Residence is:
  Marion


(Notarial Seal)



State of Illinois    )
                     )  ss.:
County of Cook       )


On this 31st day of July, in the year 1992, before me, a
Notary Public in and for the County and State aforesaid,
personally came Ronald B. Bremen, Vice-President, and
Robert M. Selangowski, Assistant Secretary, of American
National Bank and Trust Company of Chicago, one of the
corporations described in and which executed the
foregoing instrument, to me personally known and known to
me personally to be such Vice-President and Assistant
Secretary, respectively. Said Ronald B. Bremen and Robert
M. Selangowski, being by me severally sworn did depose
and say that the said Ronald B. Bremen resides in
Glencoe, Illinois, and that the said Robert M.
Selangowski resides in Lansing, Illinois; that said
Ronald B. Bremen is Vice-President and said Robert M.
Selangowski is Assistant Secretary of said American
National Bank and Trust Company of Chicago; that each of
them knows the corporate seal of said corporation; that
the seal affixed to said instrument and bearing the name
of said corporation is such corporate seal; that it was
so affixed by authority of the Board of Directors of said
corporation; that each of them signed his name thereto by
like authority; and each of them acknowledged the
execution of said instrument on behalf of said
corporation to be his free and voluntary act and deed and
the free and voluntary act and deed of said corporation,
for the uses and purposes therein set forth.

In Witness Whereof, I have hereunto set my hand and
affixed my official seal this 31st day of July, 1992.


                            /s/ Bernadette G. Janairo
                            Bernadette G. Janairo,
                            Notary Public
(Notarial Seal)

My Commission Expires: May 22, 1994


My County of Residence is:
  Cook

                         This instrument was prepared by
                                Marcus E. Woods,
                                 Attorney at Law


<PAGE>


                                                                   Exhibit 4.4.6

                       INDIANAPOLIS POWER & LIGHT COMPANY

                                      TO

                       AMERICAN NATIONAL BANK AND TRUST
                              COMPANY OF CHICAGO
                                                 TRUSTEE

                                ---------------

                      THIRTY-SIXTH SUPPLEMENTAL INDENTURE

                                ---------------

                         DATED AS OF APRIL 1, 1993

                      ESTABLISHING FIRST MORTGAGE BONDS,

                            6.10% SERIES, DUE 2016




                               TABLE OF CONTENTS*

                                       of

                      THIRTY-SIXTH SUPPLEMENTAL INDENTURE

                                       of

                       INDIANAPOLIS POWER & LIGHT COMPANY


                                                                PAGE
                                                                ----
Parties..................................................         1
Recitals.................................................         1
Section 1   Granting clauses.............................         3
              Part I Electric Distributing Systems.......         4
              Part II Steam and Hot Water Distributing
                        Systems..........................         4
              Part III Indeterminate Permits and
                        Franchises.......................         5
              Part IV Other Property.....................         5
            General and after-acquired title.............         6
Section 2   Designation of Thirty-Fourth series of bonds
              and kind and denominations thereof.........         6
            Designation of Company or American National
              Bank and Trust Company of Chicago as paying
              agent......................................         7
            Purpose of bonds.............................         7
            Redemption of bonds..........................         8
            Exchange of bonds............................        12
            Transfer of bonds............................        13
            Series limited to $41,850,000................        13
Section 3   Form of fully registered bond................        13
            Form of Trustee's certificate on bonds.......        16
Section 4   Temporary bonds..............................        19
Section 5   Payment of principal and interest; credits...        19
Section 6   Annual Payments for Maintenance and Improvement
              Fund.......................................        20
Section 7   Compliance with Section 47 of Original Mortgage
              with respect to dividend restrictions......        20
Section 8   Acceptance of trusts by Trustee and conditions
              of acceptance..............................        20
_________________________
*Table of Contents is not part of the Thirty-Sixth
Supplemental Indenture and should not be considered such.
It is included herein only for purposes of convenient
reference.

                                                                PAGE
                                                                ----
Section 9   Successors and assigns.......................        20
Section 10  Limitation of rights hereunder...............        21
Section 11  Compliance with terms, provisions and
              conditions of Mortgage.....................        21
Section 12  Execution in counterparts....................        21
Testimonium..............................................        22
Signatures and Seals.....................................        22
Acknowledgements.........................................        23

                                       ii


THIS THIRTY-SIXTH SUPPLEMENTAL INDENTURE, dated as of
April 1, 1993, between INDIANAPOLIS POWER & LIGHT
COMPANY, a corporation of the State of Indiana,
hereinafter sometimes called the "Company," party of the
first part, and AMERICAN NATIONAL BANK AND TRUST COMPANY
OF CHICAGO, a national banking association, as Trustee,
hereinafter sometimes called the "Trustee," party of the
second part;

WHEREAS, the Company by a Mortgage and Deed of Trust
(hereinafter sometimes called the "Original Mortgage"
when referred to as existing prior to any supplement
thereto or modification thereof, and the "Mortgage" when
referred to as now or heretofore supplemented and
modified) dated as of May 1, 1940, made to said American
National Bank and Trust Company of Chicago, as Trustee,
to secure the payment of the bonds issued from time to
time under the Mortgage for the purposes of and subject
to the limitations specified in the Mortgage, and to
secure the performance of the covenants therein
contained, conveyed to the Trustee thereunder upon
certain trusts, terms and conditions, and with and
subject to certain provisos and covenants therein
contained, all and singular the property, rights and
franchises which the Company then owned or should
thereafter acquire, excepting the property expressly
excepted by the terms of the Original Mortgage or any
indenture supplemental thereto, to which Mortgage
reference is hereby made for greater certainty; and

WHEREAS, the Original Mortgage has been supplemented and
modified by supplemental indentures dated as of May 1,
1942, as of February 1, 1948, as of April 1, 1949, as of
October 1, 1949, as of February 1, 1951, as of March 1,
1953, as of June 1, 1956, as of March 1, 1958, as of
October 1, 1960, as of August 1, 1964, as of April 1,
1966, as of May 1, 1967, as of May 1, 1968, as of October
1, 1970, as of March 1, 1972, as of March 15, 1973, as of
February 15, 1974, as of August 15, 1974, as of September
15, 1975, as of June 1, 1976, as of July 1, 1976, as of
August 1, 1977, as of September 1, 1978, as of August 1,
1981, as of November 1, 1983, as of November 1, 1984, as
of December 1, 1984, as of September 1, 1985, as of
October 1, 1986, as of June 1, 1989, as of August 1,
1989, as of October 15, 1991 and as of August 1, 1992;

WHEREAS, Section 8 of the Original Mortgage provides,
among other things, that the form of each series of bonds
(other than the initial issue of bonds) issued thereunder
shall be established by an indenture supplemental thereto
authorized by resolution of the Board of Directors of the
Company, and that the form of each series, as established
by the Board of Directors, shall specify the descriptive
title of the bonds and various other terms thereof, and
may also contain such other provisions as the Board of
Directors may, in its discretion, cause to be inserted
therein expressing or referring to the terms and
conditions upon which such bonds are to be issued and
secured under the Original Mortgage or any indenture
supplemental thereto or in modification thereof; and

WHEREAS, the Company has entered into a Loan Agreement,
dated as of April 1, 1993 (hereinafter called the "Loan
Agreement") with the City of Petersburg, Indiana (the
"City"), in order to obtain funds for the refunding of
the aggregate principal amount of Forty One Million Eight
Hundred Fifty Thousand Dollars ($41,850,000) of the
City's Pollution Control Revenue Bonds, Series 1976 and
Series 1978 (Indianapolis Power & Light Company Project)
issued by the City pursuant to a related loan agreements
to pay a portion of the cost of acquisition,
construction, installation and equipping by the Company
of certain pollution control facilities (the
"Facilities"), and pursuant to the Loan Agreement the
Company has agreed to issue a series of its bonds under
the Mortgage and this Thirty-Sixth Supplemental Indenture
in order to evidence and secure its indebtedness under
the Loan Agreement; and

WHEREAS, the Company now desires to provide for the
establishment, execution, authentication and delivery
under the Mortgage of bonds of a series to be known as
its "First Mortgage Bonds, 6.10% Series, due 2016" (the
bonds of said series being hereinafter sometimes referred
to as the "2016 PC Bond"), limited to the aggregate
principal amount of Forty One Million Eight Hundred Fifty
Thousnd Dollars ($41,850,000); and

WHEREAS, all things necessary to make the 2016 PC Bond
hereinafter described, when duly executed by the Company
and authenticated and delivered by the Trustee, a valid,
binding and legal obligation of the Company, and to make
this Thirty-Sixth Supplemental Indenture a valid and
binding agreement supplemental to the Original Mortgage,
have been done and performed; and

WHEREAS, the execution and delivery by the Company of
this Thirty-Sixth Supplemental Indenture, and the terms
of the 2016 PC Bond, have been duly authorized by the
Board of Directors of the Company by appropriate
resolutions of said Board; and

WHEREAS, it is provided in and by the Original Mortgage
that the Company will execute and deliver such further
instruments and do such further acts as may be necessary
or proper to carry out more effectually the purposes of
the Mortgage, and to make subject to the lien thereof any
property thereafter acquired and intended to be subject
to the lien thereof; and

WHEREAS, the Company has, since the date of execution and
delivery of the Original Mortgage, purchased and acquired
property and desires by this Thirty-Sixth Supplemental
Indenture specifically to convey to the Trustee such
property for the better protection and security of the
bonds issued and to be issued under the Original
Mortgage, or any indenture supplemental thereto;

NOW, THEREFORE, THIS INDENTURE WITNESSETH that, in
consideration of the premises and of the acceptance or
purchase of the 2016 PC Bond by the registered owners
thereof, and of the sum of one dollar, lawful money of
the United States of America, to the Company duly paid by
the Trustee at or before the execution and delivery of
this Thirty-Sixth Supplemental Indenture, the receipt
whereof is hereby acknowledged, the Company and the
Trustee, respectively, have entered into, executed and
delivered this Thirty-Sixth Supplemental Indenture, for
the uses and purposes hereinafter expressed, that is to
say:

Section 1. The Company has granted, bargained, sold,
released, conveyed, assigned, transferred, mortgaged,
pledged, set over and confirmed, and by these presents
does grant, bargain, sell, release, convey, assign,
transfer, mortgage, pledge, set over and confirm
(subject, however, to permitted encumbrances as defined
in the Original Mortgage), unto said American National
Bank and Trust Company of Chicago, as Trustee, as herein
provided, and its successors in the trusts declared in
the Original Mortgage and herein, all of the property,
real, personal and mixed, tangible and intangible, of
every kind, character and description which the Company
has acquired since the execution and delivery of the
Original Mortgage and now owns (except property, rights
and assets of a character similar to that excluded from
the lien and operation of the Mortgage by the Granting
Clauses of the Original Mortgage, which property, rights
and assets are excluded from the lien and operation of
the Mortgage only to the extent provided therein),
including, but without otherwise limiting the generality
of the foregoing, the following described property
situated within the State of Indiana:

                       PART I.

            ELECTRIC DISTRIBUTING SYSTEMS.

All electric distributing systems of the Company acquired
by it after May 1, 1940, the date of the Original
Mortgage, and located in the Counties of Bartholomew,
Boone, Daviess, Greene, Hamilton, Hancock, Hendricks,
Johnson, Knox, Madison, Marion, Monroe, Morgan, Owen,
Pike, Putnam, Shelby and Sullivan, State of Indiana; and
any additions to or extensions of any such systems,
together with the buildings, erections, structures,
transmission lines, power stations, sub-stations,
engines, boilers, condensers, pumps, turbines, machinery,
tools, conduits, manholes, insulators, dynamos, motors,
lamps, cables, wires, poles, towers, cross-arms, piers,
abutments, switchboard equipment, meters, appliances,
instruments, apparatus, appurtenances, maps, records,
ledgers, contracts, facilities and other property or
equipment used or provided for use in connection with the
construction, maintenance, repair and operation thereof;
together also with all of the rights, privileges, rights-
of-way, franchises, licenses, grants, liberties,
immunities, ordinances, permits and easements of the
Company in respect of the construction, maintenance,
repair and operation of said systems.

                         PART II.

          STEAM AND HOT WATER DISTRIBUTING SYSTEMS.

All the steam and hot water distributing systems acquired
by the Company after May 1, 1940, the date of the
Original Mortgage, and located in the City of
Indianapolis, Marion County, Indiana, and any additions
to or extensions of any such systems; together with the
buildings, erections, structures, boilers, heaters,
engines, tanks, pipe lines, mains, connections, service
pipes, meters, tools, instruments, appliances, apparatus,
facilities, machinery and other property and equipment
used or provided for use in the construction,
maintenance, repair and operation thereof; and together
also with all of the rights, privileges, rights-of-way,
franchises, licenses, grants, liberties, immunities,
ordinances, permits and easements of the Company in
respect of the construction, maintenance, repair and
operation of said systems.

                         PART III.

        INDETERMINATE PERMITS AND FRANCHISES.

All indeterminate permits, franchises, ordinances,
licenses, and other authorizations by or from any state,
county, municipality, or other governmental authority,
acquired by the Company after May 1, 1940, the date of
the Original Mortgage, including particularly, but not
limited to, any indeterminate permits
under the Public Service Commission Act of the State of
Indiana, and all Acts amendatory thereof and supplemental
thereto, and all right, title and interest therein now
owned by the Company, and all renewals, extensions and
modifications of said indeterminate permits, franchises,
ordinances, licenses, and other authorizations, and of
the indeterminate permits, franchises, ordinances,
licenses, and other authorizations referred to in Part
VII of the Granting Clauses of the Original Mortgage.

                      PART IV.

                  OTHER PROPERTY.

All other property, whether real, personal or mixed
(except any in the Mortgage expressly excepted), now
owned by the Company and wheresoever situated, including
(without in anywise limiting or impairing by the
enumeration of the same the scope and intent of the
foregoing or of any general description contained in the
Mortgage) all lands, flowage rights, water rights,
flumes, raceways, dams, rights-of-way and roads; all
plants for the generation of electricity by water, steam
and/or other power, power houses, telephone systems,
water systems, steam heat and power plants, hot water
plants, sub-stations, transmission lines, distribution
systems, bridges, culverts and tracts; all offices,
buildings and structures and the equipment thereof; all
machinery, engines, boilers, dynamos, machines,
regulators, meters, transformers, generators and motors;
all appliances whether electrical, gas or mechanical,
conduits, cables and lines; all pipes whether for water,
steam heat and power, or other purposes; all mains and
pipes, service pipes, fittings, valves and connections,
poles, wires, tools, implements, apparatus, furniture and
chattels; all municipal franchises, indeterminate
permits, and other permits; all lines for the
transportation, transmission and/or distribution of
electric current, steam heat and power or water for any
purpose, including towers, poles, wires, cables, pipes,
conduits and all apparatus for use in connection
therewith; all real estate, lands, leases, leaseholds;
all contracts, whether heat, light, power, water or
street lighting contracts; all easements, servitudes,
licenses, permits, rights, powers, franchises,
privileges, rights-of-way and other rights in or relating
to real estate or the occupancy of the same and (except
as hereinafter or in the Mortgage expressly excepted) all
the right, title and interest of the Company in and to
all other property of any kind or nature appertaining to
and/or used and/or occupied and/or enjoyed in connection
with any property hereinbefore described or referred to;

Together with all and singular the tenements,
hereditaments and appurtenances belonging or in anywise
appertaining to the aforesaid property or any part
thereof, with the reversion and reversions, remainder and
remainders and (subject to the provisions of Section 64
of the Original Mortgage), the tolls, rents, revenues,
issues, earnings, income, product and profits thereof,
and all the estate, right, title and interest and claim
whatsoever, at law as well as in equity, which the
Company now has or may hereafter acquire in and to the
aforesaid property, indeterminate permits, franchises,
ordinances, licenses and other authorizations and every
part and parcel thereof.

Section 2. There shall be and is hereby established a
series of bonds, limited in aggregate principal amount to
Forty One Million Eight Hundred Fifty Thousand Dollars
($41,850,000) to be issued under and secured by the
Mortgage, to be designated "6.10% Series, due 2016", each
of which shall also bear the descriptive title "First
Mortgage Bonds"; said bonds shall mature on January 1,
2016, and shall be issued only as fully registered bonds
without coupons in the denomination of five thousand
dollars and any larger denomination which is a whole
multiple of five thousand dollars; they shall bear
interest from the beginning of the current interest
period during which each bond is dated, at the rate per
annum designated in the title thereof, payable semi-
annually, on January 1 and July 1 of each year (except
that the first interest payment thereon shall be made
July 1, 1993 for the three-month period from April 1,
1993 through June 30, 1993); and the principal of,
premium, if any, and interest on said bond shall be
payable in lawful money of the United States of America
at the office of the Company in the City of Indianapolis,
Indiana, or, if no such office is maintained, at American
National Bank and Trust Company of Chicago, which is
hereby designated and appointed the office and agency of
the Company in the City of Chicago, Illinois, for the
payment of the principal of, premium, if any, and
interest on the 2016 PC Bond, if necessary,  and for the
registration, transfer and exchange of such bond as
hereinafter provided; all reference herein to the office
or agency of the Company in the City of Chicago,
Illinois, for the payment of the principal of, premium,
if any, and interest on the 2016 PC Bond, or the
registration, transfer or exchange thereof, being to
American National Bank and Trust Company of Chicago. In
event of the resignation or inability to act of American
National Bank and Trust Company of Chicago, then a
successor agent for all such purposes in the City of
Chicago, Illinois, shall be appointed by the Board of
Directors of the Company.

The 2016 PC Bond shall be dated as of the date of
authentication thereof, except as otherwise provided in
Section 10 of the Original Mortgage.

The 2016 PC Bond will be issued to evidence and secure a
loan to the Company by the City pursuant to the Loan
Agreement of certain funds to be acquired by the City
through the issuance of City of Petersburg, Indiana,
Pollution Control Refunding Revenue Bonds, Series 1993A
(Indianapolis Power & Light Company Project)(the "Series
1993A Bonds"), authenticated and delivered under and
pursuant to an Indenture of Trust dated as of April 1,
1993 (hereinafter called the "City Indenture"), by and
between the City and National City Bank, Indiana, as
Trustee (the "City Trustee").  Pursuant to the City's
pledge and assignment of the Loan Agreement, as set forth
in the City Indenture, the 2016 PC Bond shall be issued
to the City and assigned to the City Trustee.  All of the
proceeds of the Series 1993A Bonds will be used for the
refunding of the aggregate principal amount of Forty One
Million Eight Hundred Fifty Thousand Dollars
($41,850,000) of the City's Pollution Control Revenue
Bonds, Series 1976 and Series 1978 (Indianapolis Power &
Light Company Project) issued by the City pursuant to
applicable loan agreements.

Upon the notice and in the manner and with the effect
provided in this Section 2, the 2016 PC Bond shall be
redeemable prior to the maturity thereof under any one or
more of the following circumstances:

(a)  In whole, at the option of the Company, if the
Facilities or Unit 3 of the Petersburg Generating Station
serviced by the Facilities shall have been damaged or
destroyed (i) to such extent that they cannot be
reasonably expected, in the opinion of the Company, to be
restored within a period of six (6) months to the
condition thereof immediately preceding such damage or
destruction, or (ii) to such extent that the Company, in
its reasonable opinion, is thereby prevented from
carrying on its normal operations for a period of six (6)
months or more, or (iii) to such extent that the
restoration thereof would not be, taking into
consideration the net proceeds of any insurance payable
as a result of such damage or destruction, economic in
the reasonable opinion of the Company.

(b)  In whole, at the option of the Company, if title to,
or the temporary use of, all or substantially all of the
Facilities or Unit 3 of the Petersburg Generation Station
serviced by the Facilities, shall have been taken, under
the exercise of the power of eminent domain, or should
any governmental body or agency exercise any right which
it may have to purchase or designate a purchaser of the
same, or should such property be sold to any governmental
body or agency so that the result of such taking or
takings is that (i) the Company, in its reasonable
opinion, is thereby prevented from carrying on its normal
operations of either the Facilities or such Unit 3 for a
period of six (6) months or more, (ii) the restoration
required as a result of the taking cannot be reasonably
expected, in the opinion of the Company, to be completed
in a period of six (6) months, or (iii) the restoration
thereof, taking into consideration the net proceeds from
such eminent domain award, would not be economic in the
reasonable opinion of the Company.

(c)  In whole, at the option of the Company, if, as a
result of any changes in the Constitution or law of the
State of Indiana or the Constitution or law of the United
States of America or of legislative or administrative
action (whether state or federal) or by final decree,
judgment or order of any court or administrative body
(whether state or federal) entered after the contest
thereof by the Company in good faith or the decision of
the Company not to contest the same, the Loan Agreement
shall, in the reasonable opinion of counsel for the
Company, have become void or unenforceable or impossible
of performance in accordance with the intent and purpose
of the parties as expressed in the Loan Agreement; or
unreasonable burdens or excessive liabilities shall, in
the reasonable opinion of the Company, have been imposed
upon the City or the Company, with respect to the
Facilities or operation thereof, including without
limitation federal, state or other ad valorem, property,
income or other taxes not being imposed on the date of
the Loan Agreement other than ad valorem taxes presently
levied upon privately owned property used for the same
general purpose as the Facilities.

(d)  In whole, at the option of the Company, if changes
in the economic availability of raw materials, operating
supplies or facilities necessary for the operation of the
Facilities or the operation of Unit 3 of the Petersburg
Generating Station serviced by the Facilities shall have
occurred or technological or other changes shall have
occurred which render the Facilities or said Unit 3
uneconomic for use in the reasonable opinion of the
Company.

(e)  In part, at the option of the Company, to the extent
of net proceeds received from any condemnation award,
taking or sale as stated herein, if title to, or the
temporary use of any portion of the Facilities shall have
been taken under the exercise of the power of eminent
domain, or should any governmental body or agency
exercise any right it may have to purchase or designate a
purchaser of the same, or should such property be sold to
any governmental body or agency; provided the Company
shall furnish to the City and the City Trustee a
certificate of an Independent Engineer (as defined in the
Loan Agreement) selected by the Company stating (i) that
the property forming the part of the Facilities that was
taken by such condemnation, taking or sale is not
essential to the character or significance of the
Facilities, or (ii) that the Facilities have been
restored to a condition substantially equivalent to their
condition prior to the taking by such condemnation,
taking or sale proceedings, or (iii) that improvements
have been acquired which are suitable for the operation
of the Facilities.

(f)  In whole, at any time on or after January 1, 2003,
or in part on any interest payment date on or after
January 1, 2003, at the option of the Company at a price
equal to the principal amount of the 2016 PC Bond so to
be redeemed and accrued interest to the date of
redemption, together with a premium equal to a percentage
of the principal amount thereof set forth under the
heading "Redemption Premium" in the form of the 2016 PC
Bond hereinafter recited, so long as the Company is not
in default under the Loan Agreement or the 2016 PC Bond.

(g)  the event all or substantially all of the mortgaged
and pledged property under the Mortgage, or all or
substantially all such property used in the business of
generating, manufacturing, transporting, transmitting,
distributing or supplying electricity, should be taken by
exercise of the power of eminent domain, or should any
governmental body or agency exercise any right which it
may have to purchase or designate a purchaser of the
same, or should such property be sold to any governmental
body or agency, the Company shall be obligated to redeem
the 2016 PC Bond outstanding as promptly as possible in
accordance with paragraph B of Section 69 of the Original
Mortgage.

(h)  In the event that the Company is notified by the
City Trustee that (i) an event of default under the City
Indenture has occurred and is continuing, and (ii) the
City Trustee has declared the principal of all the Series
1993A Bonds then outstanding immediately due and payable
pursuant to the City Indenture, the Company shall call
for redemption, on a redemption date selected by it not
later than thirty (30) days following the date on which
such notice is mailed, the 2016 PC Bond outstanding, and
shall on such redemption date redeem the same; provided,
however, that such requirement of redemption shall be
deemed waived, if prior to the date fixed for such
redemption of the 2016 PC Bond (x) such event of default
is waived or cured as set forth in the City Indenture, or
(y) there shall have occurred any completed default (as
defined in the Mortgage) which affects any bond of any
series outstanding under the Mortgage and which completed
default has not been cured and made good prior to such
redemption date, it being the intent of this proviso
that, in lieu of such right to redemption, the holder of
the 2016 PC Bond shall be entitled only to such rights as
are available to the holders of bonds of any other series
outstanding under the Mortgage in the event of such
completed default; and in case of any subsequent
occurrence or continuance of the events described in (i)
and (ii) of this Section 2(h), the Company shall have the
same obligation (subject to the same proviso) to redeem
the 2016 PC Bond.

(i) In the event the City Trustee notifies the Company
and the City that the interest payable on the Series
1993A Bonds held by persons other than a "substantial
user" or a "related person" as those terms are used in
Section 147(a)(2) of the Internal Revenue code of 1986,
as amended, has been determined by a court of competent
jurisdiction or a formal ruling of the Internal Revenue
Service to be subject to federal income taxation by
reason of a breach by the Company of any covenant,
agreement or representation in the Loan Agreement, the
Company shall call the 2016 PC Bond then outstanding to
be redeemed on the next succeeding interest payment date
within one hundred eighty (180) days after the date of
such notice; provided, however, that such requirement of
redemption, whether in whole or in part shall be deemed
waived if, prior to the date fixed for redemption of the
2016 PC Bond pursuant to this Section 2(i), there shall
have occurred any completed default (as defined in the
Mortgage) which affects any bond of any series
outstanding under the Mortgage and which completed
default has not been cured and made good prior to such
redemption date, it being the intent of this proviso
that, in lieu of such right to redemption, the holder of
the 2016 PC Bond shall be entitled only to such rights as
are available to the holders of bonds of any other series
outstanding under the Mortgage in the event of such
completed default; but when any such completed default
shall have been cured and made good, if interest on the
Series 1993A Bonds shall still be taxable as described
above, the Company shall have the same obligation
(subject to the same proviso) to redeem the 2016 PC Bond
on the next succeeding interest payment date within one
hundred eighty (180) days after the curing and making
good of such completed default; provided further, that
the Company may call for redemption such portion of the
2016 PC Bond, which in the written opinion of an attorney
or firm of attorneys of nationally recognized standing on
the subject of municipal bonds, would allow the City
Trustee to redeem the Series 1993A Bonds in part, which
redemption would have the result that the interest
payable on the Series 1993A Bonds remaining outstanding
after such redemption in part would not be subject to
federal income taxation in the hands of persons other
than a "substantial user" or a "related person" as those
terms are used in Section 147(a)(2) of the Internal
Revenue Code of 1986, as amended.

In case of redemption of 2016 PC Bond in whole for the
purpose of prepayment under the Loan Agreement pursuant
to subsections (a), (b), (c), (d), (f), (g), (h) or (i)
above, the amounts payable upon redemption of 2016 PC
Bond shall be a sum sufficient, together with other funds
deposited with the City Trustee and available for such
purpose, to pay the principal of (and premium, in the
case of redemption pursuant to (f) above), and interest
on the 2016 PC Bond then outstanding and to pay all
reasonable and necessary fees and expenses of the City
Trustee accrued and to accrue through final payment of
the 2016 PC Bond.

In case of redemption in part pursuant to (e), (f) or (i)
above, the amount payable by the Company under this
Thirty-Sixth Supplemental Indenture, the Loan Agreement
and the 2016 PC Bond shall be a sum sufficient, together
with other funds deposited with the Trustee and available
for such purpose, to pay the principal of (and premium in
the case of prepayment pursuant to (f) above) and
interest on the 2016 PC Bond so to be redeemed, which sum
together with other funds deposited with the City Trustee
and available for such purpose shall be sufficient to pay
the principal of, premium, if any, and interest on the
Series 1993A Bonds and to pay all reasonable and
necessary fees and expenses of the City Trustee accrued
and to accrue through such partial prepayment.

The 2016 PC Bond and the Series 1993A Bonds shall be
redeemable at any time within one hundred eighty (180)
days following the event or events described as giving
rise to an option of the Company to redeem them in
subsections (a), (b), (c), (d) or (e) above.

To exercise any of the options granted to redeem the 2016
PC Bond in whole or in part or to comply with any
obligations to redeem the 2016 PC Bond in whole or in
part imposed in this Section 2, the Company shall give
written notice of the date of redemption to the City
Trustee, which date shall be not less than thirty (30)
days nor more than ninety (90) days from the date the
notice is mailed.  No further notice, by publication or
otherwise, shall be required for redemption of the 2016
PC Bond, and the requirements of Section 59 of the
Mortgage for notice by newspaper publication shall not
apply to the 2016 PC Bond.

At the option of the holder, the 2016 PC Bond, upon
surrender thereof at the office or agency of the Company
in Chicago, Illinois, together with a written instrument
of transfer in form approved by the Company duly executed
by the holder or by his duly authorized attorney, shall
be exchangeable for a like aggregate principal amount of
fully registered bonds of the same series of other
authorized denominations.

The 2016 PC Bond will be nontransferable except to the
City Trustee and successors thereto, if any, and to the
Company.  To the extent that it is transferable, it is
transferable by the registered holder thereof, in person
or by attorney duly authorized in writing, on the books
of the Company at the office or agency of the Company in
the City of Chicago, Illinois, upon surrender thereof for
cancellation at said office and upon presentation of a
written instrument of transfer duly executed.  Thereupon,
the Company shall issue in the name of the transferee,
and the Trustee shall authenticate and deliver, a new
registered 2016 PC Bond or Bonds, in authorized
denominations, of equal aggregate principal amount.  Any
such transfer shall be subject to the terms and
conditions specified in the Mortgage and in this Thirty-
Sixth Supplemental Indenture.

The Company shall not be required to transfer or exchange
the 2016 PC Bond for a period of ten (10) days next
preceding any interest payment date of such bond.

Except as set forth herein, no charge shall be made upon
any transfer or exchange of any of the 2016 PC Bond other
than for any tax or taxes or other governmental charge
required to be paid by the Company.

The 2016 PC Bond shall be limited to an aggregate
principal amount of Forty One Million Eight Hundred Fifty
Thousand Dollars ($41,850,000) and shall be issued under
the provisions of Article VII of the Original Mortgage.

Section 3.  The 2016 PC Bond, and the Trustee's
Certificate to be endorsed thereon, shall be in the
following forms, respectively:

[form of face of 2016 PC Bond]

This First Mortgage Bond, 6.10% Series, due 2016
(hereinafter called the "2016 PC Bond") is not
transferable except to a successor trustee under the
Indenture of Trust dated as of April 1, 1993, between the
City of Petersburg, Indiana and National City Bank,
Indiana, as the Trustee, or to Indianapolis Power & Light
Company.



     INDIANAPOLIS POWER & LIGHT COMPANY
     First Mortgage Bond, 6.10% Series, Due 2016
     Due January 1, 2016

No.                                              $

INDIANAPOLIS POWER & LIGHT COMPANY, a corporation of the
State of Indiana (hereinafter called the "Company"), for
value received, hereby promises to pay to National City
Bank, Indiana, as the Trustee (hereinafter called the
"City Trustee") under the Indenture of Trust between the
City of Petersburg, Indiana (the "City") and the City
Trustee, dated as of April 1, 1993, (the "City
Indenture") or registered assigns, on January 1, 2016, at
the office of the Company, in the City of Indianapolis,
State of Indiana, or if no such office is maintained at
the time by the Company, then at the office or agency of
the Company for such purpose in the City of Chicago,
State of Illinois, Forty One Million Eight Hundred Fifty
Thousand Dollars ($41,850,000) in lawful money of the
United States of America, and to pay to the registered
owner hereof interest thereon from the first day of
January or the first day of July next preceding the date
of this 2016 PC Bond (except that the first interest
payment hereunder shall be made July 1, 1993 for the
three-month period from April 1, 1993 through June 30,
1993), at the rate of six and one-tenth per centum
(6.10%) per annum in like lawful money at said office or
agency, on January 1 and July 1 in each year, until the
Company's obligation with respect to the payment of such
principal shall have been discharged.  The interest
payable hereunder on January 1 or July 1 will be paid to
the registered owner of this 2016 PC Bond at or before
the close of business on such dates, or if such date
shall be a Saturday, Sunday, holiday or a day on which
banking institutions in the City of Indianapolis or the
city of any paying agents are authorized by law to close,
on or before the close of business on the next succeeding
business day on which such banking institutions are open
for business.

REFERENCE IS MADE TO THE FURTHER PROVISIONS OF THIS 2016
PC BOND SET FORTH ON THE REVERSE HEREOF.  SUCH FURTHER
PROVISIONS SHALL, FOR ALL PURPOSES, HAVE THE SAME EFFECT
AS THOUGH FULLY SET FORTH IN THIS PLACE.

No recourse shall be had for the payment of the principal
of or interest on this 2016 PC Bond against any
incorporator or any past, present or future subscriber to
the capital stock, stockholder, officer or director of
the Company or of any predecessor or successor
corporation, as such, either directly or through the
Company or any predecessor or successor corporation,
under any rule of law, statute, or constitution or by the
enforcement of any assessment or otherwise, all such
liability of incorporators, subscribers, stockholders,
officers and directors, as such, being waived and
released by the terms of the Mortgage, as herein defined.

This 2016 PC Bond shall not become obligatory until
American National Bank and Trust Company of Chicago, the
Trustee under the Mortgage, as herein defined, or its
successor thereunder, shall have signed the form of
certificate endorsed hereon.

IN WITNESS WHEREOF, Indianapolis Power & Light Company
has caused this 2016 PC Bond to be signed in its name by
its President or one of its Vice-Presidents, by his
signature or a facsimile thereof, and its corporate seal
to be affixed hereon, attested by its Secretary or one of
its Assistant Secretaries, by his signature or a
facsimile thereof.

                      INDIANAPOLIS POWER & LIGHT COMPANY



Dated:                By_______________________________________
                           Treasurer

Attest:

By_____________________________
           Secretary


[Form of Trustee's Certificate on 2016 PC Bond]


     Trustee's Certificate

This 2016 PC Bond is one of the bonds, of the series
herein designated, provided for in the within-mentioned
Mortgage and Thirty-Sixth Supplemental Indenture thereto.

                        AMERICAN NATIONAL BANK AND
                          TRUST COMPANY OF CHICAGO
                                                  Trustee


                        By______________________________________
                                Authorized Signature

[Form of Reverse Side of 2016 PC Bond]

     INDIANAPOLIS POWER & LIGHT COMPANY
     First Mortgage Bond, 6.10% Series, due 2016
     Due January 1, 2016

This 2016 PC Bond is one of an issue of bonds of the
Company, issuable in series, and is one of a series known
as its First Mortgage Bonds, 6.10% Series, due 2016
(herein called the "2016 PC Bond") limited in aggregate
principal amount to Forty One Million Eight Hundred Fifty
Thousand Dollars ($41,850,000) and established by a
Thirty-Sixth Supplemental Indenture dated as of April 1,
1993, all bonds of all series issued and to be issued
under and equally secured (except insofar as any sinking
or other fund, established in accordance with the
provisions of the Mortgage hereinafter mentioned, may
afford additional security for the bonds of any
particular series) by a Mortgage and Deed of Trust, dated
as of May 1, 1940, executed by the Company to American
National Bank and Trust Company of Chicago, as the
Trustee (which Mortgage and Deed of Trust as supplemented
and modified by all supplemental indentures thereto is
hereinafter referred to as the "Mortgage"), to which
Mortgage reference is made for a description of the
property mortgaged and pledged, the nature and extent of
the security, the rights of the bearers or registered
owners of the bonds in respect of such security, the
duties and immunities of the Trustee and terms and
conditions upon which the bonds are secured.

This 2016 PC Bond evidences and secures a loan made by
the City to the Company, pursuant to a Loan Agreement,
dated as of April 1, 1993, between the City and the
Company (the "Loan Agreement").  In order to obtain funds
for such loan, the City, contemporaneously with the issue
of this 2016 PC Bond, will issue Forty One Million Eight
Hundred Fifty Thousand Dollars ($41,850,000) principal
amount of its Pollution Control Refunding Revenue Bonds,
Series 1993A (Indianapolis Power & Light Company Project)
(the "City Bonds") under and pursuant to the City
Indenture.  The City Bonds are payable from payments made
by the Company of principal of, premium, if any, and
interest on this 2016 PC Bond and from moneys in the Bond
Fund created under the City Indenture.  The obligation of
the Company to pay the principal of, premium, if any, and
interest on this 2016 PC Bond shall be discharged to the
extent that any moneys in said Bond Fund are available
for payments on the City Bonds and are directed by the
Company to be applied thereto, all as provided in the
Thirty-Sixth Supplemental Indenture.

This 2016 PC Bond is not subject to redemption prior to
January 1, 2003, except as provided in Section 2 of the
Thirty-Sixth Supplemental Indenture, to which reference
is made for full description of redemption provisions.

This 2016 PC Bond is subject to redemption in whole at
any time on or after January 1, 2003, or in part on any
interest payment date on or after January 1, 2003, at the
option of the Company, upon at least thirty (30) days
prior notice, all as provided in the Thirty-Sixth
Supplemental Indenture, at a price equal to the principal
amount of the 2016 PC Bond so to be redeemed and accrued
interest to the date of redemption, together with a
premium equal to a percentage of the principal amount
thereof set forth below under the heading "Redemption
Premium":

If Redeemed During the Twelve Months
Ending With the Thirty-First Day                Redemption
of December of the Year Stated                  Premium

      2003...................                    2.0%
      2004...................                    1.0%

and without premium if redeemed after December 31, 2004.

With the consent of the Company and to the extent
permitted by and as provided in the Mortgage, the rights
and obligations of the Company and/or of the holders of
the bonds and/or coupons and/or the terms and provisions
of the Mortgage and/or any instruments supplemental
thereto may be modified or altered by affirmative vote of
the holders of at least sixty-six and two-thirds per
centum (66-2/3%) in principal amount of the bonds
affected by such modification or alteration then
outstanding under the Mortgage (excluding bonds
disqualified from voting by reason of the Company's
interest therein as provided in the Mortgage); provided
that no such modification or alteration shall permit the
extension of the maturity of the principal of this 2016
PC Bond or the reduction in the rate of interest hereon
or any other modification in the terms of payment of such
principal or interest without the consent of the holder
hereof.  The principal hereof may be declared or may
become due and payable prior to the stated date of
maturity hereof, on the conditions, in the manner and at
the time set forth in the Mortgage, upon the occurrence
of a completed default as in the Mortgage provided.

No reference herein to the Mortgage, and no provision of
this 2016 PC Bond or of the Mortgage, shall alter or
impair the obligation of the Company, which is absolute
and unconditional, to pay, subject to the provisions of
the Thirty-Sixth Supplemental Indenture, the principal
of, and premium, if any, and interest on this 2016 PC
Bond at the place, at the respective times and at the
rate and the manner herein prescribed.

This 2016 PC Bond is issuable only in full registered
form without coupons in denominations of Five Thousand
Dollars and any larger denomination which is a whole
multiple of Five Thousand Dollars.

This 2016 PC Bond will be nontransferable except to the
City Trustee and successors thereto, if any, and to the
Company.  To the extent that it is transferable, it is
transferable by the registered holder thereof, in person
or by attorney duly authorized in writing, on the books
of the Company at the office or agency of the Company in
the City of Chicago, Illinois, upon surrender thereof for
cancellation at said office and upon presentation of a
written instrument of transfer duly executed.  Thereupon,
the Company shall issue in the name of the transferee,
and the Trustee shall authenticate and deliver, a new
registered 2016 PC Bond or Bonds, in authorized
denominations, of equal aggregate principal amount.  Any
such transfer shall be subject to the terms and
conditions specified in the Mortgage and in the Thirty-
Sixth Supplemental Indenture.

[End of 2016 PC Bond Form]

Section 4. Until the 2016 PC Bond in definitive form is
ready for delivery, the Company may execute, and upon its
request in writing the Trustee shall authenticate and
deliver, in lieu thereof, a fully registered 2016 PC Bond
in temporary form, as provided in Section 15 of the
Original Mortgage. Such bond may, in lieu of the
statement of the specific redemption prices required to
be set forth in such bond in definitive form, include a
reference to this Thirty-Sixth Supplemental Indenture for
a statement of such redemption prices.

Section 5. The Company covenants and agrees that it will
duly and punctually pay to the holder of the 2016 PC Bond
the principal thereof, premium, if any, and interest on
said bond at the dates and place and in the manner
mentioned therein; provided, however, that:

     (a)  The obligation of the Company to pay the
principal of, and premium, if any, and interest on the
2016 PC Bond shall be discharged to the extent that any
moneys in the Series 1993A Bond Account within the Bond
Fund created under and pursuant to the City Indenture are
available for the payment of the principal of, or
premium, if any, or interest on the Series 1993A Bonds
and are directed by the Company to be applied to the
payment thereof in the manner provided in the City
Indenture on or prior to the dates on which the Company
is required to pay the principal of, or premium, if any,
or interest on the 2016 PC Bond.

     (b)  Except as otherwise provided in this Section 5,
the principal amount of any Series 1993A Bond acquired by
the Company and delivered to the City Trustee, or
acquired by the City Trustee and cancelled, shall be
credited against the obligation of the Company to pay the
principal of the 2016 PC Bond.

As the principal of, premium, if any, and interest on the
2016 PC Bond is paid or deemed paid in full, and upon its
receipt by the Company, such bond shall be delivered to
the Trustee for cancellation.  The Company shall promptly
inform the Trustee of all payments made and credits
availed of with respect to its obligations on the 2016 PC
Bond.  The Trustee shall not be required to recognize any
payment made or credit availed of with respect to any
2016 PC Bond unless it has received (a) the bond for
cancellation by it, or (b) a certificate signed by a duly
authorized officer of the City Trustee specifying the
amount of such payment or credit and the principal amount
of the 2016 PC Bond with respect to which the payment or
credit was applied.  In the absence of receipt by the
Trustee of any 2016 PC Bond, any such certificate shall
be controlling and conclusive.

Section 6. The covenant of the Company to make annual
payments to the Trustee for a Maintenance and Improvement
Fund as contained in Section 41 of the Original Mortgage
and in the first twenty-four Supplemental Indentures to
the Original Mortgage creating the several series of
First Mortgage Bonds presently outstanding under such
Supplemental Indentures shall not apply to nor be for the
benefit of the 2016 PC Bond, and the Company reserves the
right, without any consent of, or other action by, the
holder of the 2016 PC Bond, to amend, modify or delete
the provisions of the Mortgage relating to such
Maintenance and Improvement Fund and by acceptance of the
2016 PC Bond the holder thereof waives any right or
privilege so to consent or take any other action with
respect thereto.

Section 7. The Company covenants that, so long as the
2016 PC Bond shall remain outstanding, it will comply
with all of the provisions of Section 47 of the Original
Mortgage, including the provisions with respect to
limitations on dividends and distributions and the
purchase and redemption of stock.

Section 8. The Trustee hereby accepts the trusts herein
declared, provided and created and agrees to perform the
same upon the terms and conditions herein and in the
Mortgage set forth and upon the following terms and
conditions:

The recitals contained herein and in the bonds shall be
taken as the statements of the Company and the Trustee
assumes no responsibility for the correctness of the
same. The Trustee makes no representations as to the
validity or adequacy of the security afforded hereby, or
as to the validity of this Thirty-Sixth Supplemental
Indenture or of the 2016 PC Bond issued hereunder.

Section 9. Whenever in this Thirty-Sixth Supplemental
Indenture either of the parties hereto is named or
referred to, this shall, subject to the provisions of
Article XVII of the Original Mortgage, be deemed to
include the successors or assigns of such party, and all
the covenants and agreements in this Thirty-Sixth
Supplemental Indenture contained by or on behalf of the
Company, or by or on behalf of the Trustee, shall,
subject as aforesaid, bind and inure to the benefit of
the respective successors and assigns of such parties,
whether so expressed or not.

Section 10. Nothing in this Thirty-Sixth Supplemental
Indenture expressed or implied, is intended or shall be
construed to confer upon, or to give to, any person, co-
partnership or corporation, other than the parties hereto
and the holders of the bonds and coupons outstanding
under the Mortgage, any right, remedy, or claim under or
by reason of this Thirty-Sixth Supplemental Indenture or
any covenant, condition or stipulation hereof; and all
the covenants, conditions, stipulations, promises and
agreements in this Thirty-Sixth Supplemental Indenture
contained by or on behalf of the Company shall be for the
sole and exclusive benefit of the parties hereto and of
the holders of the bonds and of the coupons outstanding
under the Mortgage.

Section 11. The Company covenants that all of the terms,
provisions and conditions of the Mortgage shall be
applicable to the 2016 PC Bond issued hereunder, except
as herein otherwise provided and except insofar as the
same may be inconsistent with the provisions of this
Thirty-Sixth Supplemental Indenture.

Section 12. This Thirty-Sixth Supplemental Indenture is
dated as of April 1, 1993, although executed and
delivered on the date of the acknowledgment hereof by the
Trustee; and shall be simultaneously executed and
delivered in several counterparts, and all such
counterparts executed and delivered, each as an original,
shall constitute but one and the same instrument.

In Witness Whereof, Indianapolis Power & Light Company,
party of the first part, has caused its corporate name to
be hereunto affixed and this instrument to be signed and
acknowledged by its President or a Vice-President, and
its corporate seal to be hereto affixed and attested by
its Secretary or an Assistant Secretary, for and in its
behalf, and American National Bank and Trust Company of
Chicago, party of the second part, as Trustee, has caused
its corporate name to be hereunto affixed and this
instrument to be signed and acknowledged by one of its
Vice-Presidents, and its corporate seal to be hereto
affixed and attested by one of its Assistant Secretaries,
all as of the day, month and year first above written.


                      Indianapolis Power & Light Company


Attest:               By    /s/ Marcus E. Woods
                            Marcus E. Woods,
                            Vice-President


/s/ Clark L. Snyder
Clark L. Snyder,
Assistant Secretary

(Seal)

                      American National Bank and Trust
                        Company of Chicago


Attest:               By  /s/ Richard Y. Guthrie
                          Richard Y. Guthrie,
                          Senior Vice-President


/s/ Robert M. Selangowski
Robert M. Selangowski,
Assistant Secretary

(Seal)



State of Indiana     )
                     )  ss.:
County of Marion     )

On this 5th day of April, in the year 1993, before me, a
Notary Public in and for the County and State aforesaid,
personally came Marcus E. Woods, Vice-President, and
Clark L. Snyder, Assistant Secretary, of Indianapolis
Power & Light Company, one of the corporations described
in and which executed the foregoing instrument, to me
personally known and known to me personally to be such
Vice-President, and Assistant Secretary, respectively.
Said Marcus E. Woods and Clark L. Snyder being by me
severally duly sworn did depose and say that the said
Marcus E. Woods resides in Hendricks County, Indiana and
the said Clark L. Snyder resides in Marion County,
Indiana; that said Marcus E. Woods is Vice-President and
said Clark L. Snyder is Assistant Secretary of said
Indianapolis Power & Light Company; that each of them
knows the corporate seal of said corporation; that the
seal affixed to said instrument and bearing the name of
said corporation is such corporate seal; that is was so
affixed by order of the Board of Directors of said
corporation; and that each of them signed his name
thereto by like order; and each of them acknowledged the
execution of said instrument on behalf of said
corporation to be his free and voluntary act and deed and
the free and voluntary act and deed of said corporation,
for the uses and purposes therein set forth.

In Witness Whereof, I have hereunto set my hand and
affixed my official seal this 5th day of April, 1993.


                              /s/ Gloria K. Bryant
                              Gloria K. Bryant,
                              Notary Public

My Commission Expires:
  June 11, 1995

My County of Residence is:
  Marion


(Notarial Seal)



State of Illinois    )
                     )  ss.:
County of Cook       )


On this 2nd day of April, in the year 1993, before me, a
Notary Public in and for the County and State aforesaid,
personally came Richard Y. Guthrie, Senior Vice-
President, and Robert M. Selangowski, Assistant
Secretary, of American National Bank and Trust Company of
Chicago, one of the corporations described in and which
executed the foregoing instrument, to me personally known
and known to me personally to be such Senior Vice-
President and Assistant Secretary, respectively. Said
Richard Y. Guthrie and Robert M. Selangowski, being by me
severally sworn did depose and say that the said Richard
Y. Guthrie resides in Evanston, Illinois, and that the
said Robert M. Selangowski resides in Lansing, Illinois;
that said Richard Y. Guthrie is Senior Vice-President and
said Robert M. Selangowski is Assistant Secretary of said
American National Bank and Trust Company of Chicago; that
each of them knows the corporate seal of said
corporation; that the seal affixed to said instrument and
bearing the name of said corporation is such corporate
seal; that it was so affixed by authority of the Board of
Directors of said corporation; that each of them signed
his name thereto by like authority; and each of them
acknowledged the execution of said instrument on behalf
of said corporation to be his free and voluntary act and
deed and the free and voluntary act and deed of said
corporation, for the uses and purposes therein set forth.

In Witness Whereof, I have hereunto set my hand and
affixed my official seal this 2nd day of April, 1993.


                           /s/ Bernadette G. Janairo
                           Bernadette G. Janairo,
                           Notary Public

My Commission Expires: May 22, 1994


My County of Residence is:
  Cook

(Notarial Seal)

                        This instrument was prepared by
                                Marcus E. Woods,
                                Attorney at Law

<PAGE>

                                                                   Exhibit 4.4.7

                       INDIANAPOLIS POWER & LIGHT COMPANY

                                      TO

                       AMERICAN NATIONAL BANK AND TRUST
                              COMPANY OF CHICAGO
                                                  TRUSTEE

                                ---------------

                      THIRTY-SEVENTH SUPPLEMENTAL INDENTURE

                                ---------------

                         DATED AS OF OCTOBER 1, 1993

                      ESTABLISHING FIRST MORTGAGE BONDS,

                            5.40% SERIES, DUE 2017




                               TABLE OF CONTENTS*

                                       of

                      THIRTY-SEVENTH SUPPLEMENTAL INDENTURE

                                       of

                       INDIANAPOLIS POWER & LIGHT COMPANY


                                                                PAGE
                                                                ----
Parties..................................................         1
Recitals.................................................         1
Section 1   Granting clauses.............................         3
              Part I   Electric Distributing Systems.....         4
              Part II  Steam and Hot Water Distributing
                         Systems.........................         5
              Part III Indeterminate Permits and
                         Franchises......................         5
              Part IV  Other Property....................         5
            General and after-acquired title.............         6
Section 2   Designation of Thirty-Fifth series of bonds
              and kind and denominations thereof.........         7
            Designation of Company or American National
              Bank and Trust Company of Chicago as paying
              agent......................................         7
            Purpose of bonds.............................         7
            Redemption of bonds..........................         8
            Exchange of bonds............................        12
            Transfer of bonds............................        13
            Series limited to $24,650,000................        13
Section 3   Form of fully registered bond................        13
            Form of Trustee's certificate on bonds.......        16
Section 4   Temporary bonds..............................        19
Section 5   Payment of principal and interest; credits...        19
Section 6   Annual Payments for Maintenance and Improvement
              Fund.......................................        20
Section 7   Compliance with Section 47 of Original Mortgage
              with respect to dividend restrictions......        20
Section 8   Acceptance of trusts by Trustee and conditions
              of acceptance..............................        20
_________________________
*Table of Contents is not part of the Thirty-Seventh
Supplemental Indenture and should not be considered such.
It is included herein only for purposes of convenient
reference.

                                                                PAGE
                                                                ----
Section 9   Successors and assigns.......................        20
Section 10  Limitation of rights hereunder...............        21
Section 11  Compliance with terms, provisions and
              conditions of Mortgage.....................        21
Section 12  Execution in counterparts....................        21
Testimonium..............................................        22
Signatures and Seals.....................................        22
Acknowledgements.........................................        23

                                       ii


THIS THIRTY-SEVENTH SUPPLEMENTAL INDENTURE, dated as of
October 1, 1993, between INDIANAPOLIS POWER & LIGHT
COMPANY, a corporation of the State of Indiana,
hereinafter sometimes called the "Company," party of the
first part, and AMERICAN NATIONAL BANK AND TRUST COMPANY
OF CHICAGO, a national banking association, as Trustee,
hereinafter sometimes called the "Trustee," party of the
second part;

WHEREAS, the Company by a Mortgage and Deed of Trust
(hereinafter sometimes called the "Original Mortgage"
when referred to as existing prior to any supplement
thereto or modification thereof, and the "Mortgage" when
referred to as now or heretofore supplemented and
modified) dated as of May 1, 1940, made to said American
National Bank and Trust Company of Chicago, as Trustee,
to secure the payment of the bonds issued from time to
time under the Mortgage for the purposes of and subject
to the limitations specified in the Mortgage, and to
secure the performance of the covenants therein
contained, conveyed to the Trustee thereunder upon
certain trusts, terms and conditions, and with and
subject to certain provisos and covenants therein
contained, all and singular the property, rights and
franchises which the Company then owned or should
thereafter acquire, excepting the property expressly
excepted by the terms of the Original Mortgage or any
indenture supplemental thereto, to which Mortgage
reference is hereby made for greater certainty; and

WHEREAS, the Original Mortgage has been supplemented and
modified by supplemental indentures dated as of May 1,
1942, as of February 1, 1948, as of April 1, 1949, as of
October 1, 1949, as of February 1, 1951, as of March 1,
1953, as of June 1, 1956, as of March 1, 1958, as of
October 1, 1960, as of August 1, 1964, as of April 1,
1966, as of May 1, 1967, as of May 1, 1968, as of October
1, 1970, as of March 1, 1972, as of March 15, 1973, as of
February 15, 1974, as of August 15, 1974, as of September
15, 1975, as of June 1, 1976, as of July 1, 1976, as of
August 1, 1977, as of September 1, 1978, as of August 1,
1981, as of November 1, 1983, as of November 1, 1984, as
of December 1, 1984, as of September 1, 1985, as of
October 1, 1986, as of June 1, 1989, as of August 1,
1989, as of October 15, 1991, as of August 1, 1992 and
as of April 1, 1993;

WHEREAS, Section 8 of the Original Mortgage provides,
among other things, that the form of each series of bonds
(other than the initial issue of bonds) issued thereunder
shall be established by an indenture supplemental thereto
authorized by resolution of the Board of Directors of the
Company, and that the form of each series, as established
by the Board of Directors, shall specify the descriptive
title of the bonds and various other terms thereof,
and may also contain such other provisions as the Board
of Directors may, in its discretion, cause to be inserted
therein expressing or referring to the terms and conditions
upon which such bonds are to be issued and secured under the
Original Mortgage or any indenture supplemental thereto
or in modification thereof; and

WHEREAS, the Company has entered into a Loan Agreement,
dated as of October 1, 1993 (hereinafter called the "Loan
Agreement") with the City of Petersburg, Indiana (the
"City"), in order to obtain funds for the refunding of
the aggregate principal amount of Twenty Four Million Six
Hundred Fifty Thousand Dollars ($24,650,000) of the
City's Pollution Control Revenue Bonds, Series 1977
(Indianapolis Power & Light Company Project) issued by
the City pursuant to a related loan agreement to pay a
portion of the cost of acquisition, construction,
installation and equipping by the Company of certain
pollution control facilities (the "Facilities"), and
pursuant to the Loan Agreement the Company has agreed to
issue a series of its bonds under the Mortgage and this
Thirty-Seventh Supplemental Indenture in order to
evidence and secure its indebtedness under the Loan
Agreement; and

WHEREAS, the Company now desires to provide for the
establishment, execution, authentication and delivery
under the Mortgage of bonds of a series to be known as
its "First Mortgage Bonds, 5.40% Series, due 2017" (the
bonds of said series being hereinafter sometimes referred
to as the "2017 PC Bond"), limited to the aggregate
principal amount of Twenty Four Million Six Hundred Fifty
Thousnd Dollars ($24,650,000); and

WHEREAS, all things necessary to make the 2017 PC Bond
hereinafter described, when duly executed by the Company
and authenticated and delivered by the Trustee, a valid,
binding and legal obligation of the Company, and to make
this Thirty-Seventh Supplemental Indenture a valid and
binding agreement supplemental to the Original Mortgage,
have been done and performed; and

WHEREAS, the execution and delivery by the Company of
this Thirty-Seventh Supplemental Indenture, and the terms
of the 2017 PC Bond, have been duly authorized by the
Board of Directors of the Company by appropriate
resolutions of said Board; and

WHEREAS, it is provided in and by the Original Mortgage
that the Company will execute and deliver such further
instruments and do such further acts as may be necessary
or proper to carry out more effectually the purposes of
the Mortgage, and to make subject to the lien thereof any
property thereafter acquired and intended to be subject
to the lien thereof; and

WHEREAS, the Company has, since the date of execution and
delivery of the Original Mortgage, purchased and acquired
property and desires by this Thirty-Seventh Supplemental
Indenture specifically to convey to the Trustee such
property for the better protection and security of the
bonds issued and to be issued under the Original
Mortgage, or any indenture supplemental thereto;

NOW, THEREFORE, THIS INDENTURE WITNESSETH that, in
consideration of the premises and of the acceptance or
purchase of the 2017 PC Bond by the registered owners
thereof, and of the sum of one dollar, lawful money of
the United States of America, to the Company duly paid by
the Trustee at or before the execution and delivery of
this Thirty-Seventh Supplemental Indenture, the receipt
whereof is hereby acknowledged, the Company and the
Trustee, respectively, have entered into, executed and
delivered this Thirty-Seventh Supplemental Indenture, for
the uses and purposes hereinafter expressed, that is to
say:

Section 1. The Company has granted, bargained, sold,
released, conveyed, assigned, transferred, mortgaged,
pledged, set over and confirmed, and by these presents
does grant, bargain, sell, release, convey, assign,
transfer, mortgage, pledge, set over and confirm
(subject, however, to permitted encumbrances as defined
in the Original Mortgage), unto said American National
Bank and Trust Company of Chicago, as Trustee, as herein
provided, and its successors in the trusts declared in
the Original Mortgage and herein, all of the property,
real, personal and mixed, tangible and intangible, of
every kind, character and description which the Company
has acquired since the execution and delivery of the
Original Mortgage and now owns (except property, rights
and assets of a character similar to that excluded from
the lien and operation of the Mortgage by the Granting
Clauses of the Original Mortgage, which property, rights
and assets are excluded from the lien and operation of
the Mortgage only to the extent provided therein),
including, but without otherwise limiting the generality
of the foregoing, the following described property
situated within the State of Indiana:

                        PART I.

            ELECTRIC DISTRIBUTING SYSTEMS.

All electric distributing systems of the Company acquired
by it after May 1, 1940, the date of the Original
Mortgage, and located in the Counties of Bartholomew,
Boone, Daviess, Greene, Hamilton, Hancock, Hendricks,
Johnson, Knox, Madison, Marion, Monroe, Morgan, Owen,
Pike, Putnam, Shelby and Sullivan, State of Indiana; and
any additions to or extensions of any such systems,
together with the buildings, erections, structures,
transmission lines, power stations, sub-stations,
engines, boilers, condensers, pumps, turbines, machinery,
tools, conduits, manholes, insulators, dynamos, motors,
lamps, cables, wires, poles, towers, cross-arms, piers,
abutments, switchboard equipment, meters, appliances,
instruments, apparatus, appurtenances, maps, records,
ledgers, contracts, facilities and other property or
equipment used or provided for use in connection with the
construction, maintenance, repair and operation thereof;
together also with all of the rights, privileges, rights-
of-way, franchises, licenses, grants, liberties,
immunities, ordinances, permits and easements of the
Company in respect of the construction, maintenance,
repair and operation of said systems.

                    PART II.

      STEAM AND HOT WATER DISTRIBUTING SYSTEMS.

All the steam and hot water distributing systems acquired
by the Company after May 1, 1940, the date of the
Original Mortgage, and located in the City of
Indianapolis, Marion County, Indiana, and any additions
to or extensions of any such systems; together with the
buildings, erections, structures, boilers, heaters,
engines, tanks, pipe lines, mains, connections, service
pipes, meters, tools, instruments, appliances, apparatus,
facilities, machinery and other property and equipment
used or provided for use in the construction,
maintenance, repair and operation thereof; and together
also with all of the rights, privileges, rights-of-way,
franchises, licenses, grants, liberties, immunities,
ordinances, permits and easements of the Company in
respect of the construction, maintenance, repair and
operation of said systems.

                       PART III.

         INDETERMINATE PERMITS AND FRANCHISES.

All indeterminate permits, franchises, ordinances,
licenses, and other authorizations by or from any state,
county, municipality, or other governmental authority,
acquired by the Company after May 1, 1940, the date of
the Original Mortgage, including particularly, but not
limited to, any indeterminate permits
under the Public Service Commission Act of the State of
Indiana, and all Acts amendatory thereof and supplemental
thereto, and all right, title and interest therein now
owned by the Company, and all renewals, extensions and
modifications of said indeterminate permits, franchises,
ordinances, licenses, and other authorizations, and of
the indeterminate permits, franchises, ordinances,
licenses, and other authorizations referred to in Part
VII of the Granting Clauses of the Original Mortgage.

                       PART IV.

                   OTHER PROPERTY.

All other property, whether real, personal or mixed
(except any in the Mortgage expressly excepted), now
owned by the Company and wheresoever situated, including
(without in anywise limiting or impairing by the
enumeration of the same the scope and intent of the
foregoing or of any general description contained in the
Mortgages) all lands, flowage rights, water rights,
flumes, raceways, dams, rights-of-way and roads; all
plants for the generation of electricity by water, steam
and/or other power, power houses, telephone systems,
water systems, steam heat and power plants, hot water
plants, sub-stations, transmission lines, distribution
systems, bridges, culverts and tracts; all offices,
buildings and structures and the equipment thereof; all
machinery, engines, boilers, dynamos, machines,
regulators, meters, transformers, generators and motors;
all appliances whether electrical, gas or mechanical,
conduits, cables and lines; all pipes whether for water,
steam heat and power, or other purposes; all mains and
pipes, service pipes, fittings, valves and connections,
poles, wires, tools, implements, apparatus, furniture and
chattels; all municipal franchises, indeterminate
permits, and other permits; all lines for the
transportation, transmission and/or distribution of
electric current, steam heat and power or water for any
purpose, including towers, poles, wires, cables, pipes,
conduits and all apparatus for use in connection
therewith; all real estate, lands, leases, leaseholds;
all contracts, whether heat, light, power, water or
street lighting contracts; all easements, servitudes,
licenses, permits, rights, powers, franchises,
privileges, rights-of-way and other rights in or relating
to real estate or the occupancy of the same and (except
as hereinafter or in the Mortgage expressly excepted) all
the right, title and interest of the Company in and to
all other property of any kind or nature appertaining to
and/or used and/or occupied and/or enjoyed in connection
with any property hereinbefore described or referred to;

Together with all and singular the tenements,
hereditaments and appurtenances belonging or in anywise
appertaining to the aforesaid property or any part
thereof, with the reversion and reversions, remainder and
remainders and (subject to the provisions of Section 64
of the Original Mortgage), the tolls, rents, revenues,
issues, earnings, income, product and profits thereof,
and all the estate, right, title and interest and claim
whatsoever, at law as well as in equity, which the
Company now has or may hereafter acquire in and to the
aforesaid property, indeterminate permits, franchises,
ordinances, licenses and other authorizations and every
part and parcel thereof.

Section 2. There shall be and is hereby established a
series of bonds, limited in aggregate principal amount to
Twenty Four Million Six Hundred Fifty Thousand Dollars
($24,650,000) to be issued under and secured by the
Mortgage, to be designated "5.40% Series, due 2017", each
of which shall also bear the descriptive title "First
Mortgage Bonds"; said bonds shall mature on August 1,
2017, and shall be issued only as fully registered bonds
without coupons in the denomination of five thousand
dollars and any larger denomination which is a whole
multiple of five thousand dollars; they shall bear
interest from the beginning of the current interest
period during which each bond is dated, at the rate per
annum designated in the title thereof, payable semi-
annually, on February 1 and August 1 of each year (except
that the first interest payment thereon shall be made
February 1, 1994 for the four-month period from October
1, 1993 through January 31, 1994); and the principal of,
premium, if any, and interest on said bond shall be
payable in lawful money of the United States of America
at the office of the Company in the City of Indianapolis,
Indiana, or, if no such office is maintained, at American
National Bank and Trust Company of Chicago, which is
hereby designated and appointed the office and agency of
the Company in the City of Chicago, Illinois, for the
payment of the principal of, premium, if any, and
interest on the 2017 PC Bond, if necessary, and for the
registration, transfer and exchange of such bond as
hereinafter provided; all reference herein to the office
or agency of the Company in the City of Chicago,
Illinois, for the payment of the principal of, premium,
if any, and interest on the 2017 PC Bond, or the
registration, transfer or exchange thereof, being to
American National Bank and Trust Company of Chicago. In
event of the resignation or inability to act of American
National Bank and Trust Company of Chicago, then a
successor agent for all such purposes in the City of
Chicago, Illinois, shall be appointed by the Board of
Directors of the Company.

The 2017 PC Bond shall be dated as of the date of
authentication thereof, except as otherwise provided in
Section 10 of the Original Mortgage.

The 2017 PC Bond will be issued to evidence and secure a
loan to the Company by the City pursuant to the Loan
Agreement of certain funds to be acquired by the City
through the issuance of City of Petersburg, Indiana,
Pollution Control Refunding Revenue Bonds, Series 1993B
(Indianapolis Power & Light Company Project)(the "Series
1993B Bonds"), authenticated and delivered under and
pursuant to an Indenture of Trust dated as of October 1,
1993 (hereinafter called the "City Indenture"), by and
between the City and National City Bank, Indiana, as
Trustee (the "City Trustee").  Pursuant to the City's
pledge and assignment of the Loan Agreement, as set forth
in the City Indenture, the 2017 PC Bond shall be issued
to the City and assigned to the City Trustee.  All of the
proceeds of the Series 1993B Bonds will be used for the
refunding of the aggregate principal amount of Twenty
Four Million Six Hundred Fifty Thousand Dollars
($24,650,000) of the City's Pollution Control Revenue
Bonds, Series 1977 (Indianapolis Power & Light Company
Project) issued by the City pursuant to applicable loan
agreement.

Upon the notice and in the manner and with the effect
provided in this Section 2, the 2017 PC Bond shall be
redeemable prior to the maturity thereof under any one or
more of the following circumstances:

(a)  In whole, at the option of the Company, if the
Facilities or Unit 3 of the Petersburg Generating Station
serviced by the Facilities shall have been damaged or
destroyed (i) to such extent that they cannot be
reasonably expected, in the opinion of the Company, to be
restored within a period of six (6) months to the
condition thereof immediately preceding such damage or
destruction, or (ii) to such extent that the Company, in
its reasonable opinion, is thereby prevented from
carrying on its normal operations for a period of six (6)
months or more, or (iii) to such extent that the
restoration thereof would not be, taking into
consideration the net proceeds of any insurance payable
as a result of such damage or destruction, economic in
the reasonable opinion of the Company.

(b)  In whole, at the option of the Company, if title to,
or the temporary use of, all or substantially all of the
Facilities or Unit 3 of the Petersburg Generation Station
serviced by the Facilities, shall have been taken, under
the exercise of the power of eminent domain, or should
any governmental body or agency exercise any right which
it may have to purchase or designate a purchaser of the
same, or should such property be sold to any governmental
body or agency so that the result of such taking or
takings is that (i) the Company, in its reasonable
opinion, is thereby prevented from carrying on its normal
operations of either the Facilities or such Unit 3 for a
period of six (6) months or more, (ii) the restoration
required as a result of the taking cannot be reasonably
expected, in the opinion of the Company, to be completed
in a period of six (6) months, or (iii) the restoration
thereof, taking into consideration the net proceeds from
such eminent domain award, would not be economic in the
reasonable opinion of the Company.

(c)  In whole, at the option of the Company, if, as a
result of any changes in the Constitution or law of the
State of Indiana or the Constitution or law of the United
States of America or of legislative or administrative
action (whether state or federal) or by final decree,
judgment or order of any court or administrative body
(whether state or federal) entered after the contest
thereof by the Company in good faith or the decision of
the Company not to contest the same, the Loan Agreement
shall, in the reasonable opinion of counsel for the
Company, have become void or unenforceable or impossible
of performance in accordance with the intent and purpose
of the parties as expressed in the Loan Agreement; or
unreasonable burdens or excessive liabilities shall, in
the reasonable opinion of the Company, have been imposed
upon the City or the Company, with respect to the
Facilities or operation thereof, including without
limitation federal, state or other ad valorem, property,
income or other taxes not being imposed on the date of
the Loan Agreement other than ad valorem taxes presently
levied upon privately owned property used for the same
general purpose as the Facilities.

(d)  In whole, at the option of the Company, if changes
in the economic availability of raw materials, operating
supplies or facilities necessary for the operation of the
Facilities or the operation of Unit 3 of the Petersburg
Generating Station serviced by the Facilities shall have
occurred or technological or other changes shall have
occurred which render the Facilities or said Unit 3
uneconomic for use in the reasonable opinion of the
Company.

(e)  In part, at the option of the Company, to the extent
of net proceeds received from any condemnation award,
taking or sale as stated herein, if title to, or the
temporary use of any portion of the Facilities shall have
been taken under the exercise of the power of eminent
domain, or should any governmental body or agency
exercise any right it may have to purchase or designate a
purchaser of the same, or should such property be sold to
any governmental body or agency; provided the Company
shall furnish to the City and the City Trustee a
certificate of an Independent Engineer (as defined in the
Loan Agreement) selected by the Company stating (i) that
the property forming the part of the Facilities that was
taken by such condemnation, taking or sale is not
essential to the character or significance of the
Facilities, or (ii) that the Facilities have been
restored to a condition substantially equivalent to their
condition prior to the taking by such condemnation,
taking or sale proceedings, or (iii) that improvements
have been acquired which are suitable for the operation
of the Facilities.

(f)  In the event all or substantially all of the
mortgaged and pledged property under the Mortgage, or all
or substantially all such property used in the business
of generating, manufacturing, transporting, transmitting,
distributing or supplying electricity, should be taken by
exercise of the power of eminent domain, or should any
governmental body or agency exercise any right which it
may have to purchase or designate a purchaser of the
same, or should such property be sold to any governmental
body or agency, the Company shall be obligated to redeem
the 2017 PC Bond outstanding as promptly as possible in
accordance with paragraph B of Section 69 of the Original
Mortgage.

(g)  In the event that the Company is notified by the
City Trustee that (i) an event of default under the City
Indenture has occurred and is continuing, and (ii) the
City Trustee has declared the principal of all the Series
1993B Bonds then outstanding immediately due and payable
pursuant to the City Indenture, the Company shall call
for redemption, on a redemption date selected by it not
later than thirty (30) days following the date on which
such notice is mailed, the 2017 PC Bond outstanding, and
shall on such redemption date redeem the same; provided,
however, that such requirement of redemption shall be
deemed waived, if prior to the date fixed for such
redemption of the 2017 PC Bond (x) such event of default
is waived or cured as set forth in the City Indenture, or
(y) there shall have occurred any completed default (as
defined in the Mortgage) which affects any bond of any
series outstanding under the Mortgage and which completed
default has not been cured and made good prior to such
redemption date, it being the intent of this proviso
that, in lieu of such right to redemption, the holder of
the 2017 PC Bond shall be entitled only to such rights as
are available to the holders of bonds of any other series
outstanding under the Mortgage in the event of such
completed default; and in case of any subsequent
occurrence or continuance of the events described in (i)
and (ii) of this Section 2(g), the Company shall have the
same obligation (subject to the same proviso) to redeem
the 2017 PC Bond.

(h) In the event the City Trustee notifies the Company
and the City that the interest payable on the Series
1993B Bonds held by persons other than a "substantial
user" or a "related person" as those terms are used in
Section 147(a)(2) of the Internal Revenue code of 1986,
as amended, has been determined by a court of competent
jurisdiction or a formal ruling of the Internal Revenue
Service to be subject to federal income taxation by
reason of a breach by the Company of any covenant,
agreement or representation in the Loan Agreement, the
Company shall call the 2017 PC Bond then outstanding to
be redeemed on the next succeeding interest payment date
within one hundred eighty (180) days after the date of
such notice; provided, however, that such requirement of
redemption, whether in whole or in part shall be deemed
waived if, prior to the date fixed for redemption of the
2017 PC Bond pursuant to this Section 2(h), there shall
have occurred any completed default (as defined in the
Mortgage) which affects any bond of any series
outstanding under the Mortgage and which completed
default has not been cured and made good prior to such
redemption date, it being the intent of this proviso
that, in lieu of such right to redemption, the holder of
the 2017 PC Bond shall be entitled only to such rights as
are available to the holders of bonds of any other series
outstanding under the Mortgage in the event of such
completed default; but when any such completed default
shall have been cured and made good, if interest on the
Series 1993B Bonds shall still be taxable as described
above, the Company shall have the same obligation
(subject to the same proviso) to redeem the 2017 PC Bond
on the next succeeding interest payment date within one
hundred eighty (180) days after the curing and making
good of such completed default; provided further, that
the Company may call for redemption such portion of the
2017 PC Bond, which in the written opinion of an attorney
or firm of attorneys of nationally recognized standing on
the subject of municipal bonds, would allow the City
Trustee to redeem the Series 1993B Bonds in part, which
redemption would have the result that the interest
payable on the Series 1993B Bonds remaining outstanding
after such redemption in part would not be subject to
federal income taxation in the hands of persons other
than a "substantial user" or a "related person" as those
terms are used in Section 147(a)(2) of the Internal
Revenue Code of 1986, as amended.

In case of redemption of 2017 PC Bond in whole for the
purpose of prepayment under the Loan Agreement pursuant
to subsections (a), (b), (c), (d), (f), (g), or (h)
above, the amounts payable upon redemption of 2017 PC
Bond shall be a sum sufficient, together with other funds
deposited with the City Trustee and available for such
purpose, to pay the principal of and interest on the 2017
PC Bond then outstanding and to pay all reasonable and
necessary fees and expenses of the City Trustee accrued
and to accrue through final payment of the 2017 PC Bond.

In case of redemption in part pursuant to (e) or (h)
above, the amount payable by the Company under this
Thirty-Seventh Supplemental Indenture, the Loan Agreement
and the 2017 PC Bond shall be a sum sufficient, together
with other funds deposited with the Trustee and available
for such purpose, to pay the principal of and interest on
the 2017 PC Bond so to be redeemed, which sum together
with other funds deposited with the City Trustee and
available for such purpose shall be sufficient to pay the
principal of, premium, if any, and interest on the Series
1993B Bonds and to pay all reasonable and necessary fees
and expenses of the City Trustee accrued and to accrue
through such partial prepayment.

The 2017 PC Bond and the Series 1993B Bonds shall be
redeemable at any time within one hundred eighty (180)
days following the event or events described as giving
rise to an option of the Company to redeem them in
subsections (a), (b), (c), (d) or (e) above.

To exercise any of the options granted to redeem the 2017
PC Bond in whole or in part or to comply with any
obligations to redeem the 2017 PC Bond in whole or in
part imposed in this Section 2, the Company shall give
written notice of the date of redemption to the City
Trustee, which date shall be not less than thirty (30)
days nor more than ninety (90) days from the date the
notice is mailed.  No further notice, by publication or
otherwise, shall be required for redemption of the 2017
PC Bond, and the requirements of Section 59 of the
Mortgage for notice by newspaper publication shall not
apply to the 2017 PC Bond.

At the option of the holder, the 2017 PC Bond, upon
surrender thereof at the office or agency of the Company
in Chicago, Illinois, together with a written instrument
of transfer in form approved by the Company duly executed
by the holder or by his duly authorized attorney, shall
be exchangeable for a like aggregate principal amount of
fully registered bonds of the same series of other
authorized denominations.

The 2017 PC Bond will be nontransferable except to the
City Trustee and successors thereto, if any, and to the
Company.  To the extent that it is transferable, it is
transferable by the registered holder thereof, in person
or by attorney duly authorized in writing, on the books
of the Company at the office or agency of the Company in
the City of Chicago, Illinois, upon surrender thereof for
cancellation at said office and upon presentation of a
written instrument of transfer duly executed.  Thereupon,
the Company shall issue in the name of the transferee,
and the Trustee shall authenticate and deliver, a new
registered 2017 PC Bond or Bonds, in authorized
denominations, of equal aggregate principal amount.  Any
such transfer shall be subject to the terms and
conditions specified in the Mortgage and in this Thirty-
Seventh Supplemental Indenture.

The Company shall not be required to transfer or exchange
the 2017 PC Bond for a period of ten (10) days next
preceding any interest payment date of such bond.

Except as set forth herein, no charge shall be made upon
any transfer or exchange of any of the 2017 PC Bond other
than for any tax or taxes or other governmental charge
required to be paid by the Company.

The 2017 PC Bond shall be limited to an aggregate
principal amount of Twenty Four Million Six Hundred Fifty
Thousand Dollars ($24,650,000) and shall be issued under
the provisions of Article VII of the Original Mortgage.

Section 3.  The 2017 PC Bond, and the Trustee's
Certificate to be endorsed thereon, shall be in the
following forms, respectively:

[form of face of 2017 PC Bond]

This First Mortgage Bond, 5.40% Series, due 2017
(hereinafter called the "2017 PC Bond") is not
transferable except to a successor trustee under the
Indenture of Trust dated as of October 1, 1993, between
the City of Petersburg, Indiana and National City Bank,
Indiana, as the Trustee, or to Indianapolis Power & Light
Company.



     INDIANAPOLIS POWER & LIGHT COMPANY
     First Mortgage Bond, 5.40% Series, Due 2017
     Due August 1, 2017

No.                                              $

INDIANAPOLIS POWER & LIGHT COMPANY, a corporation of the
State of Indiana (hereinafter called the "Company"), for
value received, hereby promises to pay to National City
Bank, Indiana, as the Trustee (hereinafter called the
"City Trustee") under the Indenture of Trust between the
City of Petersburg, Indiana (the "City") and the City
Trustee, dated as of October 1, 1993, (the "City
Indenture") or registered assigns, on August 1, 2017, at
the office of the Company, in the City of Indianapolis,
State of Indiana, or if no such office is maintained at
the time by the Company, then at the office or agency of
the Company for such purpose in the City of Chicago,
State of Illinois, Twenty Four Million Six Hundred Fifty
Thousand Dollars ($24,650,000) in lawful money of the
United States of America, and to pay to the registered
owner hereof interest thereon from the first day of
February or the first day of August next preceding the
date of this 2017 PC Bond (except that the first interest
payment hereunder shall be made February 1, 1994 for the
four-month period from October 1, 1993 through January
31, 1994), at the rate of five and forty hundredths per
centum (5.40%) per annum in like lawful money at said
office or agency, on February 1 and August 1 in each
year, until the Company's obligation with respect to the
payment of such principal shall have been discharged.
The interest payable hereunder on February 1 or August 1
will be paid to the registered owner of this 2017 PC Bond
at or before the close of business on such dates, or if
such date shall be a Saturday, Sunday, holiday or a day
on which banking institutions in the City of Indianapolis
or the city of any paying agents are authorized by law to
close, on or before the close of business on the next
succeeding business day on which such banking
institutions are open for business.

REFERENCE IS MADE TO THE FURTHER PROVISIONS OF THIS 2017
PC BOND SET FORTH ON THE REVERSE HEREOF.  SUCH FURTHER
PROVISIONS SHALL, FOR ALL PURPOSES, HAVE THE SAME EFFECT
AS THOUGH FULLY SET FORTH IN THIS PLACE.

No recourse shall be had for the payment of the principal
of or interest on this 2017 PC Bond against any
incorporator or any past, present or future subscriber to
the capital stock, stockholder, officer or director of
the Company or of any predecessor or successor
corporation, as such, either directly or through the
Company or any predecessor or successor corporation,
under any rule of law, statute, or constitution or by the
enforcement of any assessment or otherwise, all such
liability of incorporators, subscribers, stockholders,
officers and directors, as such, being waived and
released by the terms of the Mortgage, as herein defined.

This 2017 PC Bond shall not become obligatory until
American National Bank and Trust Company of Chicago, the
Trustee under the Mortgage, as herein defined, or its
successor thereunder, shall have signed the form of
certificate endorsed hereon.

IN WITNESS WHEREOF, Indianapolis Power & Light Company
has caused this 2017 PC Bond to be signed in its name by
its President or one of its Vice-Presidents, by his
signature or a facsimile thereof, and its corporate seal
to be affixed hereon, attested by its Secretary or one of
its Assistant Secretaries, by his signature or a
facsimile thereof.

                     INDIANAPOLIS POWER & LIGHT COMPANY



Dated:               By_______________________________________
                              Vice-President

Attest:

By_____________________________
           Secretary


[Form of Trustee's Certificate on 2017 PC Bond]


     Trustee's Certificate

This 2017 PC Bond is one of the bonds, of the series
herein designated, provided for in the within-mentioned
Mortgage and Thirty-Seventh Supplemental Indenture
thereto.

                    AMERICAN NATIONAL BANK AND
                      TRUST COMPANY OF CHICAGO
                                            Trustee


                    By______________________________________
                             Authorized Signature

[Form of Reverse Side of 2017 PC Bond]

     INDIANAPOLIS POWER & LIGHT COMPANY
     First Mortgage Bond, 5.40% Series, due 2017
     Due August 1, 2017

This 2017 PC Bond is one of an issue of bonds of the
Company, issuable in series, and is one of a series known
as its First Mortgage Bonds, 5.40% Series, due 2017
(herein called the "2017 PC Bond") limited in aggregate
principal amount to Twenty Four Million Six Hundred Fifty
Thousand Dollars ($24,650,000) and established by a
Thirty-Seventh Supplemental Indenture dated as of October
1, 1993, all bonds of all series issued and to be issued
under and equally secured (except insofar as any sinking
or other fund, established in accordance with the
provisions of the Mortgage hereinafter mentioned, may
afford additional security for the bonds of any
particular series) by a Mortgage and Deed of Trust, dated
as of May 1, 1940, executed by the Company to American
National Bank and Trust Company of Chicago, as the
Trustee (which Mortgage and Deed of Trust as supplemented
and modified by all supplemental indentures thereto is
hereinafter referred to as the "Mortgage"), to which
Mortgage reference is made for a description of the
property mortgaged and pledged, the nature and extent of
the security, the rights of the bearers or registered
owners of the bonds in respect of such security, the
duties and immunities of the Trustee and terms and
conditions upon which the bonds are secured.

This 2017 PC Bond evidences and secures a loan made by
the City to the Company, pursuant to a Loan Agreement,
dated as of October 1, 1993, between the City and the
Company (the "Loan Agreement").  In order to obtain funds
for such loan, the City, contemporaneously with the issue
of this 2017 PC Bond, will issue Twenty Four Million Six
Hundred Fifty Thousand Dollars ($24,650,000) principal
amount of its Pollution Control Refunding Revenue Bonds,
Series 1993B (Indianapolis Power & Light Company Project)
(the "City Bonds") under and pursuant to the City
Indenture.  The City Bonds are payable from payments made
by the Company of principal of, premium, if any, and
interest on this 2017 PC Bond and from moneys in the Bond
Fund created under the City Indenture.  The obligation of
the Company to pay the principal of, premium, if any, and
interest on this 2017 PC Bond shall be discharged to the
extent that any moneys in said Bond Fund are available
for payments on the City Bonds and are directed by the
Company to be applied thereto, all as provided in the
Thirty-Seventh Supplemental Indenture.

This 2017 PC Bond is not subject to redemption except as
provided in Section 2 of the Thirty-Seventh Supplemental
Indenture, to which reference is made for full
description of redemption provisions.

With the consent of the Company and to the extent
permitted by and as provided in the Mortgage, the rights
and obligations of the Company and/or of the holders of
the bonds and/or coupons and/or the terms and provisions
of the Mortgage and/or any instruments supplemental
thereto may be modified or altered by affirmative vote of
the holders of at least sixty-six and two-thirds per
centum (66-2/3%) in principal amount of the bonds
affected by such modification or alteration then
outstanding under the Mortgage (excluding bonds
disqualified from voting by reason of the Company's
interest therein as provided in the Mortgage); provided
that no such modification or alteration shall permit the
extension of the maturity of the principal of this 2017
PC Bond or the reduction in the rate of interest hereon
or any other modification in the terms of payment of such
principal or interest without the consent of the holder
hereof.  The principal hereof may be declared or may
become due and payable prior to the stated date of
maturity hereof, on the conditions, in the manner and at
the time set forth in the Mortgage, upon the occurrence
of a completed default as in the Mortgage provided.

No reference herein to the Mortgage, and no provision of
this 2017 PC Bond or of the Mortgage, shall alter or
impair the obligation of the Company, which is absolute
and unconditional, to pay, subject to the provisions of
the Thirty-Seventh Supplemental Indenture, the principal
of, and premium, if any, and interest on this 2017 PC
Bond at the place, at the respective times and at the
rate and the manner herein prescribed.

This 2017 PC Bond is issuable only in full registered
form without coupons in denominations of Five Thousand
Dollars and any larger denomination which is a whole
multiple of Five Thousand Dollars.

This 2017 PC Bond will be nontransferable except to the
City Trustee and successors thereto, if any, and to the
Company.  To the extent that it is transferable, it is
transferable by the registered holder thereof, in person
or by attorney duly authorized in writing, on the books
of the Company at the office or agency of the Company in
the City of Chicago, Illinois, upon surrender thereof for
cancellation at said office and upon presentation of a
written instrument of transfer duly executed.  Thereupon,
the Company shall issue in the name of the transferee,
and the Trustee shall authenticate and deliver, a new
registered 2017 PC Bond or Bonds, in authorized
denominations, of equal aggregate principal amount.  Any
such transfer shall be subject to the terms and
conditions specified in the Mortgage and in the Thirty-
Seventh Supplemental Indenture.

[End of 2017 PC Bond Form]

Section 4. Until the 2017 PC Bond in definitive form is
ready for delivery, the Company may execute, and upon its
request in writing the Trustee shall authenticate and
deliver, in lieu thereof, fully registered 2017 PC Bond
in temporary form, as provided in Section 15 of the
Original Mortgage. Such bond may, in lieu of the
statement of the specific redemption prices required to
be set forth in such bond in definitive form, include a
reference to this Thirty-Seventh Supplemental Indenture
for a statement of such redemption prices.

Section 5. The Company covenants and agrees that it will
duly and punctually pay to the holder of the 2017 PC Bond
the principal thereof, premium, if any, and interest on
said bond at the dates and place and in the manner
mentioned therein; provided, however, that:

     (a)  The obligation of the Company to pay the
principal of, and premium, if any, and interest on the
2017 PC Bond shall be discharged to the extent that any
moneys in the Series 1993B Bond Account within the Bond
Fund created under and pursuant to the City Indenture are
available for the payment of the principal of, or
premium, if any, or interest on the Series 1993B Bonds
and are directed by the Company to be applied to the
payment thereof in the manner provided in the City
Indenture on or prior to the dates on which the Company
is required to pay the principal of, or premium, if any,
or interest on the 2017 PC Bond.

     (b)  Except as otherwise provided in this Section 5,
the principal amount of any Series 1993B Bond acquired by
the Company and delivered to the City Trustee, or
acquired by the City Trustee and cancelled, shall be
credited against the obligation of the Company to pay the
principal of the 2017 PC Bond.

As the principal of, premium, if any, and interest on the
2017 PC Bond is paid or deemed paid in full, and upon its
receipt by the Company, such bond shall be delivered to
the Trustee for cancellation.  The Company shall promptly
inform the Trustee of all payments made and credits
availed of with respect to its obligations on the 2017 PC
Bond.  The Trustee shall not be required to recognize any
payment made or credit availed of with respect to any
2017 PC Bond unless it has received (a) the bond for
cancellation by it, or (b) a certificate signed by a duly
authorized officer of the City Trustee specifying the
amount of such payment or credit and the principal amount
of the 2017 PC Bond with respect to which the payment or
credit was applied.  In the absence of receipt by the
Trustee of any 2017 PC Bond, any such certificate shall
be controlling and conclusive.

Section 6. The covenant of the Company to make annual
payments to the Trustee for a Maintenance and Improvement
Fund as contained in Section 41 of the Original Mortgage
and in the first twenty-four Supplemental Indentures to
the Original Mortgage creating the several series of
First Mortgage Bonds presently outstanding under such
Supplemental Indentures shall not apply to nor be for the
benefit of the 2017 PC Bond, and the Company reserves the
right, without any consent of, or other action by, the
holder of the 2017 PC Bond, to amend, modify or delete
the provisions of the Mortgage relating to such
Maintenance and Improvement Fund and by acceptance of the
2017 PC Bond the holder thereof waives any right or
privilege so to consent or take any other action with
respect thereto.

Section 7. The Company covenants that, so long as the
2017 PC Bond shall remain outstanding, it will comply
with all of the provisions of Section 47 of the Original
Mortgage, including the provisions with respect to
limitations on dividends and distributions and the
purchase and redemption of stock.

Section 8. The Trustee hereby accepts the trusts herein
declared, provided and created and agrees to perform the
same upon the terms and conditions herein and in the
Mortgage set forth and upon the following terms and
conditions:

The recitals contained herein and in the bonds shall be
taken as the statements of the Company and the Trustee
assumes no responsibility for the correctness of the
same. The Trustee makes no representations as to the
validity or adequacy of the security afforded hereby, or
as to the validity of this Thirty-Seventh Supplemental
Indenture or of the 2017 PC Bond issued hereunder.

Section 9. Whenever in this Thirty-Seventh Supplemental
Indenture either of the parties hereto is named or
referred to, this shall, subject to the provisions of
Article XVII of the Original Mortgage, be deemed to
include the successors or assigns of such party, and all
the covenants and agreements in this Thirty-Seventh
Supplemental Indenture contained by or on behalf of the
Company, or by or on behalf of the Trustee, shall,
subject as aforesaid, bind and inure to the benefit of
the respective successors and assigns of such parties,
whether so expressed or not.


Section 10. Nothing in this Thirty-Seventh Supplemental
Indenture expressed or implied, is intended or shall be
construed to confer upon, or to give to, any person, co-
partnership or corporation, other than the parties hereto
and the holders of the bonds and coupons outstanding
under the Mortgage, any right, remedy, or claim under or
by reason of this Thirty-Seventh Supplemental Indenture
or any covenant, condition or stipulation hereof; and all
the covenants, conditions, stipulations, promises and
agreements in this Thirty-Seventh Supplemental Indenture
contained by or on behalf of the Company shall be for the
sole and exclusive benefit of the parties hereto and of
the holders of the bonds and of the coupons outstanding
under the Mortgage.

Section 11. The Company covenants that all of the terms,
provisions and conditions of the Mortgage shall be
applicable to the 2017 PC Bond issued hereunder, except
as herein otherwise provided and except insofar as the
same may be inconsistent with the provisions of this
Thirty-Seventh Supplemental Indenture.

Section 12. This Thirty-Seventh Supplemental Indenture is
dated as of October 1, 1993, although executed and
delivered on the date of the acknowledgment hereof by the
Trustee; and shall be simultaneously executed and
delivered in several counterparts, and all such
counterparts executed and delivered, each as an original,
shall constitute but one and the same instrument.

In Witness Whereof, Indianapolis Power & Light Company,
party of the first part, has caused its corporate name to
be hereunto affixed and this instrument to be signed and
acknowledged by its President or a Vice-President, and
its corporate seal to be hereto affixed and attested by
its Secretary or an Assistant Secretary, for and in its
behalf, and American National Bank and Trust Company of
Chicago, party of the second part, as Trustee, has caused
its corporate name to be hereunto affixed and this
instrument to be signed and acknowledged by one of its
Vice-Presidents, and its corporate seal to be hereto
affixed and attested by one of its Assistant Secretaries,
all as of the day, month and year first above written.


                        Indianapolis Power & Light Company


Attest:                 By    /s/ Marcus E. Woods
                              Marcus E. Woods,
                              Vice-President
/s/ Clark L. Snyder
Clark L. Snyder,
Assistant Secretary

(Seal)

                         American National Bank and Trust
                           Company of Chicago


Attest:                  By  /s/ Ronald B. Bremen
                             Ronald B. Bremen,
                             Vice-President
/s/ Robert M. Selangowski
Robert M. Selangowski,
Assistant Secretary



(Seal)



State of Indiana     )
                     )  ss.:
County of Marion     )

On this 5th day of October, in the year 1993, before me,
a Notary Public in and for the County and State aforesaid,
personally came Marcus E. Woods, Vice-President, and
Clark L. Snyder, Assistant Secretary, of Indianapolis Power &
Light Company, one of the corporations described in and
which executed the foregoing instrument, to me personally
known and known to me personally to be such Vice-President,
and Assistant Secretary, respectively. Said Marcus E.
Woods and Clark L. Snyder being by me severally duly
sworn did depose and say that the said Marcus E. Woods
resides in Hendricks County, Indiana and the said
Clark L. Snyder resides in Marion County, Indiana; that
said Marcus E. Woods is Vice-President and said Clark L.
Snyder is Assistant Secretary of said Indianapolis Power
& Light Company; that each of them knows the corporate seal of
said corporation; that the seal affixed to said instrument
and bearing the name of said corporation is such corporate
seal; that is was so affixed by order of the Board of
Directors of said corporation; and that each of them signed his
name thereto by like order; and each of them acknowledged
the execution of said instrument on behalf of said corporation
to be his free and voluntary act and deed and the free and
voluntary act and deed of said corporation, for the uses
and purposes therein set forth.

In Witness Whereof, I have hereunto set my hand and
affixed my official seal this 5th day of October, 1993.


                                /s/ Dinah L. Kirkham
                                Dinah L. Kirkham,
                                Notary Public

My Commission Expires:
  June 23, 1996

My County of Residence is:
  Johnson


(Notarial Seal)



State of Illinois    )
                     )  ss.:
County of Cook       )


On this 4th day of October, in the year 1993, before me,
a Notary Public in and for the County and State
aforesaid, personally came Ronald B. Bremen, Vice-
President, and Robert M. Selangowski, Assistant
Secretary, of American National Bank and Trust Company of
Chicago, one of the corporations described in and which
executed the foregoing instrument, to me personally known
and known to me personally to be such Vice-President and
Assistant Secretary, respectively. Said Ronald B. Bremen
and Robert M. Selangowski, being by me severally sworn
did depose and say that the said Ronald B. Bremen resides
in Glencoe, Illinois, and that the said Robert M.
Selangowski resides in Lansing,Illinois; that said Ronald
B. Bremen is Vice-President and said Robert M.
Selangowski is Assistant Secretary of said American
National Bank and Trust Company of Chicago; that each of
them knows the corporate seal of said corporation; that
the seal affixed to said instrument and bearing the name
of said corporation is such corporate seal; that it was
so affixed by authority of the Board of Directors of said
corporation; that each of them signed his name thereto by
like authority; and each of them acknowledged the
execution of said instrument on behalf of said
corporation to be his free and voluntary act and deed and
the free and voluntary act and deed of said corporation,
for the uses and purposes therein set forth.

In Witness Whereof, I have hereunto set my hand and
affixed my official seal this 4th day of October, 1993.


                                /s/ Bernadette G. Janairo
                                Bernadette G. Janairo,
                                Notary Public

My Commission Expires: May 22, 1994


My County of Residence is:
  Cook

(Notarial Seal)

                        This instrument was prepared by
                                Marcus E. Woods,
                                Attorney at Law

<PAGE>

                                                                   Exhibit 4.4.8

                      INDIANAPOLIS POWER & LIGHT COMPANY

                                      TO

                       AMERICAN NATIONAL BANK AND TRUST
                              COMPANY OF CHICAGO
                                                TRUSTEE

                                ---------------

                      THIRTY-EIGHTH SUPPLEMENTAL INDENTURE

                                ---------------

                         DATED AS OF OCTOBER 1, 1993

                      ESTABLISHING FIRST MORTGAGE BONDS,

                            5.50% SERIES, DUE 2023




                               TABLE OF CONTENTS*

                                       of

                      THIRTY-EIGHTH SUPPLEMENTAL INDENTURE

                                       of

                       INDIANAPOLIS POWER & LIGHT COMPANY


                                                                PAGE
                                                                ----
Parties..................................................         1
Recitals.................................................         1
Section 1   Granting clauses.............................         3
               Part I   Electric Distributing Systems....         4
               Part II  Steam and Hot Water Distributing
                          Systems........................         4
               Part III Indeterminate Permits and
                          Franchises.....................         5
               Part IV  Other Property...................         5
            General and after-acquired title.............         6
Section 2   Designation of Thirty-Sixth series of bonds
              and kind and denominations thereof.........         6
            Designation of Company or American National
              Bank and Trust Company of Chicago as paying
              agent......................................         7
            Purpose of bonds.............................         7
            Redemption of bonds..........................         8
            Exchange of bonds............................        12
            Transfer of bonds............................        13
            Series limited to $30,000,000................        13
Section 3   Form of fully registered bond................        13
            Form of Trustee's certificate on bonds.......        16
Section 4   Temporary bonds..............................        19
Section 5   Payment of principal and interest; credits...        19
Section 6   Annual Payments for Maintenance and Improvement
              Fund.......................................        20
Section 7   Compliance with Section 47 of Original Mortgage
              with respect to dividend restrictions......        20
Section 8   Acceptance of trusts by Trustee and conditions
              of acceptance..............................        20
Section 9   Successors and assigns.......................        21
Section 10  Limitation of rights hereunder...............        21
_________________________
*Table of Contents is not part of the Thirty-Eighth
Supplemental Indenture and should not be considered such.
It is included herein only for purposes of convenient
reference.

                                                                PAGE
                                                                ----
Section 11  Compliance with terms, provisions and
              conditions of Mortgage.....................        21
Section 12  Execution in counterparts....................        21
Testimonium..............................................        22
Signatures and Seals.....................................        22
Acknowledgements.........................................        23

                                       ii


THIS THIRTY-EIGHTH SUPPLEMENTAL INDENTURE, dated as of
October 1, 1993, between INDIANAPOLIS POWER & LIGHT
COMPANY, a corporation of the State of Indiana,
hereinafter sometimes called the "Company," party of the
first part, and AMERICAN NATIONAL BANK AND TRUST COMPANY
OF CHICAGO, a national banking association, as Trustee,
hereinafter sometimes called the "Trustee," party of the
second part;

WHEREAS, the Company by a Mortgage and Deed of Trust
(hereinafter sometimes called the "Original Mortgage"
when referred to as existing prior to any supplement
thereto or modification thereof, and the "Mortgage" when
referred to as now or heretofore supplemented and
modified) dated as of May 1, 1940, made to said American
National Bank and Trust Company of Chicago, as Trustee,
to secure the payment of the bonds issued from time to
time under the Mortgage for the purposes of and subject
to the limitations specified in the Mortgage, and to
secure the performance of the covenants therein
contained, conveyed to the Trustee thereunder upon
certain trusts, terms and conditions, and with and
subject to certain provisos and covenants therein
contained, all and singular the property, rights and
franchises which the Company then owned or should
thereafter acquire, excepting the property expressly
excepted by the terms of the Original Mortgage or any
indenture supplemental thereto, to which Mortgage
reference is hereby made for greater certainty; and

WHEREAS, the Original Mortgage has been supplemented and
modified by supplemental indentures dated as of May 1,
1942, as of February 1, 1948, as of April 1, 1949, as of
October 1, 1949, as of February 1, 1951, as of March 1,
1953, as of June 1, 1956, as of March 1, 1958, as of
October 1, 1960, as of August 1, 1964, as of April 1,
1966, as of May 1, 1967, as of May 1, 1968, as of October
1, 1970, as of March 1, 1972, as of March 15, 1973, as of
February 15, 1974, as of August 15, 1974, as of September
15, 1975, as of June 1, 1976, as of July 1, 1976, as of
August 1, 1977, as of September 1, 1978, as of August 1,
1981, as of November 1, 1983, as of November 1, 1984, as
of December 1, 1984, as of September 1, 1985, as of
October 1, 1986, as of June 1, 1989, as of August 1,
1989, as of October 15, 1991, as of August 1, 1992, as of
April 1, 1993 and as of October 1, 1993;

WHEREAS, Section 8 of the Original Mortgage provides,
among other things, that the form of each series of bonds
(other than the initial issue of bonds) issued thereunder
shall be established by an indenture supplemental thereto
authorized by resolution of the Board of Directors of the
Company, and that the form of each series, as established
by the Board of Directors, shall specify the descriptive
title of the bonds and various other terms thereof,
and may also contain such other provisions as the Board
of Directors may, in its discretion, cause to be inserted
therein expressing or referring to the terms and conditions
upon which such bonds are to be issued and secured under the
Original Mortgage or any indenture supplemental thereto
or in modification thereof; and

WHEREAS, the Company has entered into a Loan Agreement,
dated as of October 1, 1993 (hereinafter called the "Loan
Agreement") with the City of Petersburg, Indiana (the
"City"), in order to obtain funds for the refunding of
the aggregate principal amount of Thirty Million Dollars
($30,000,000) of the City's Pollution Control Revenue
Bonds, Series 1983 (Indianapolis Power & Light Company
Project) issued by the City pursuant to a related loan
agreement to pay a portion of the cost of acquisition,
construction, installation and equipping by the Company
of certain pollution control facilities (the
"Facilities"), and pursuant to the Loan Agreement the
Company has agreed to issue a series of its bonds under
the Mortgage and this Thirty-Eighth Supplemental
Indenture in order to evidence and secure its
indebtedness under the Loan Agreement; and

WHEREAS, the Company now desires to provide for the
establishment, execution, authentication and delivery
under the Mortgage of bonds of a series to be known as
its "First Mortgage Bonds, 5.50% Series, due 2023" (the
bonds of said series being hereinafter sometimes referred
to as the "2023 PC Bond"), limited to the aggregate
principal amount of Thirty Million Dollars ($30,000,000);
and

WHEREAS, all things necessary to make the 2023 PC Bond
hereinafter described, when duly executed by the Company
and authenticated and delivered by the Trustee, a valid,
binding and legal obligation of the Company, and to make
this Thirty-Eighth Supplemental Indenture a valid and
binding agreement supplemental to the Original Mortgage,
have been done and performed; and

WHEREAS, the execution and delivery by the Company of
this Thirty-Eighth Supplemental Indenture, and the terms
of the 2023 PC Bond, have been duly authorized by the
Board of Directors of the Company by appropriate
resolutions of said Board; and

WHEREAS, it is provided in and by the Original Mortgage
that the Company will execute and deliver such further
instruments and do such further acts as may be necessary
or proper to carry out more effectually the purposes of
the Mortgage, and to make subject to the lien thereof any
property thereafter acquired and intended to be subject
to the lien thereof; and

WHEREAS, the Company has, since the date of execution and
delivery of the Original Mortgage, purchased and acquired
property and desires by this Thirty-Eighth Supplemental
Indenture specifically to convey to the Trustee such
property for the better protection and security of the
bonds issued and to be issued under the Original
Mortgage, or any indenture supplemental thereto;

NOW, THEREFORE, THIS INDENTURE WITNESSETH that, in
consideration of the premises and of the acceptance or
purchase of the 2023 PC Bond by the registered owners
thereof, and of the sum of one dollar, lawful money of
the United States of America, to the Company duly paid by
the Trustee at or before the execution and delivery of
this Thirty-Eighth Supplemental Indenture, the receipt
whereof is hereby acknowledged, the Company and the
Trustee, respectively, have entered into, executed and
delivered this Thirty-Eighth Supplemental Indenture, for
the uses and purposes hereinafter expressed, that is to
say:

Section 1. The Company has granted, bargained, sold,
released, conveyed, assigned, transferred, mortgaged,
pledged, set over and confirmed, and by these presents
does grant, bargain, sell, release, convey, assign,
transfer, mortgage, pledge, set over and confirm
(subject, however, to permitted encumbrances as defined
in the Original Mortgage), unto said American National
Bank and Trust Company of Chicago, as Trustee, as herein
provided, and its successors in the trusts declared in
the Original Mortgage and herein, all of the property,
real, personal and mixed, tangible and intangible, of
every kind, character and description which the Company
has acquired since the execution and delivery of the
Original Mortgage and now owns (except property, rights
and assets of a character similar to that excluded from
the lien and operation of the Mortgage by the Granting
Clauses of the Original Mortgage, which property, rights
and assets are excluded from the lien and operation of
the Mortgage only to the extent provided therein),
including, but without otherwise limiting the generality
of the foregoing, the following described property
situated within the state of Indiana:

                      PART I.

          ELECTRIC DISTRIBUTING SYSTEMS.

All electric distributing systems of the Company acquired
by it after May 1, 1940, the date of the Original
Mortgage, and located in the Counties of Bartholomew,
Boone, Daviess, Greene, Hamilton, Hancock, Hendricks,
Johnson, Knox, Madison, Marion, Monroe, Morgan, Owen,
Pike, Putnam, Shelby and Sullivan, State of Indiana; and
any additions to or extensions of any such systems,
together with the buildings, erections, structures,
transmission lines, power stations, sub-stations,
engines, boilers, condensers, pumps, turbines, machinery,
tools, conduits, manholes, insulators, dynamos, motors,
lamps, cables, wires, poles, towers, cross-arms, piers,
abutments, switchboard equipment, meters, appliances,
instruments, apparatus, appurtenances, maps, records,
ledgers, contracts, facilities and other property or
equipment used or provided for use in connection with the
construction, maintenance, repair and operation thereof;
together also with all of the rights, privileges, rights-
of-way, franchises, licenses, grants, liberties,
immunities, ordinances, permits and easements of the
Company in respect of the construction, maintenance,
repair and operation of said systems.

                        PART II.

        STEAM AND HOT WATER DISTRIBUTING SYSTEMS.

All the steam and hot water distributing systems acquired
by the Company after May 1, 1940, the date of the
Original Mortgage, and located in the City of
Indianapolis, Marion County, Indiana, and any additions
to or extensions of any such systems; together with the
buildings, erections, structures, boilers, heaters,
engines, tanks, pipe lines, mains, connections, service
pipes, meters, tools, instruments, appliances, apparatus,
facilities, machinery and other property and equipment
used or provided for use in the construction,
maintenance, repair and operation thereof; and together
also with all of the rights, privileges, rights-of-way,
franchises, licenses, grants, liberties, immunities,
ordinances, permits and easements of the Company in
respect of the construction, maintenance, repair and
operation of said systems.

                     PART III.

         INDETERMINATE PERMITS AND FRANCHISES.

All indeterminate permits, franchises, ordinances,
licenses, and other authorizations by or from any state,
county, municipality, or other governmental authority,
acquired by the Company after May 1, 1940, the date of
the Original Mortgage, including particularly, but not
limited to, any indeterminate permits
under the Public Service Commission Act of the State of
Indiana, and all Acts amendatory thereof and supplemental
thereto, and all right, title and interest therein now
owned by the Company, and all renewals, extensions and
modifications of said indeterminate permits, franchises,
ordinances, licenses, and other authorizations, and of
the indeterminate permits, franchises, ordinances,
licenses, and other authorizations referred to in Part
VII of the Granting Clauses of the Original Mortgage.

                     PART IV.

                 OTHER PROPERTY.

All other property, whether real, personal or mixed
(except any in the Mortgage expressly excepted), now
owned by the Company and wheresoever situated, including
(without in anywise limiting or impairing by the
enumeration of the same the scope and intent of the
foregoing or of any general description contained in the
Mortgages) all lands, flowage rights, water rights,
flumes, raceways, dams, rights-of-way and roads; all
plants for the generation of electricity by water, steam
and/or other power, power houses, telephone systems,
water systems, steam heat and power plants, hot water
plants, sub-stations, transmission lines, distribution
systems, bridges, culverts and tracts; all offices,
buildings and structures and the equipment thereof; all
machinery, engines, boilers, dynamos, machines,
regulators, meters, transformers, generators and motors;
all appliances whether electrical, gas or mechanical,
conduits, cables and lines; all pipes whether for water,
steam heat and power, or other purposes; all mains and
pipes, service pipes, fittings, valves and connections,
poles, wires, tools, implements, apparatus, furniture and
chattels; all municipal franchises, indeterminate
permits, and other permits; all lines for the
transportation, transmission and/or distribution of
electric current, steam heat and power or water for any
purpose, including towers, poles, wires, cables, pipes,
conduits and all apparatus for use in connection
therewith; all real estate, lands, leases, leaseholds;
all contracts, whether heat, light, power, water or
street lighting contracts; all easements, servitudes,
licenses, permits, rights, powers, franchises,
privileges, rights-of-way and other rights in or relating
to real estate or the occupancy of the same and (except
as hereinafter or in the Mortgage expressly excepted) all
the right, title and interest of the Company in and to
all other property of any kind or nature appertaining to
and/or used and/or occupied and/or enjoyed in connection
with any property hereinbefore described or referred to;

Together with all and singular the tenements,
hereditaments and appurtenances belonging or in anywise
appertaining to the aforesaid property or any part
thereof, with the reversion and reversions, remainder and
remainders and (subject to the provisions of Section 64
of the Original Mortgage), the tolls, rents, revenues,
issues, earnings, income, product and profits thereof,
and all the estate, right, title and interest and claim
whatsoever, at law as well as in equity, which the
Company now has or may hereafter acquire in and to the
aforesaid property, indeterminate permits, franchises,
ordinances, licenses
and other authorizations and every part and parcel
thereof.

Section 2. There shall be and is hereby established a
series of bonds, limited in aggregate principal amount to
Thirty Million Dollars ($30,000,000) to be issued under
and secured by the Mortgage, to be designated "5.50%
Series, due 2023", each of which shall also bear the
descriptive title "First Mortgage Bonds"; said bonds
shall mature on October 1, 2023, and shall be issued only
as fully registered bonds without coupons in the
denomination of five thousand dollars and any larger
denomination which is a multiple of five thousand
dollars; they shall bear interest from the beginning of
the current interest period during which each bond is
dated, at the rate per annum designated in the title
thereof, payable semi-annually, on April 1 and October 1
of each year; and the principal of, premium, if any, and
interest on said bond shall be payable in lawful money of
the United States of America at the office of the Company
in the City of Indianapolis, Indiana, or, if no such
office is maintained, at American National Bank and Trust
Company of Chicago, which is hereby designated and
appointed the office and agency of the Company in the
City of Chicago, Illinois, for the payment of the
principal of, premium, if any, and interest on the 2023
PC Bond, if necessary,  and for the registration,
transfer and exchange of such bonds as hereinafter
provided; all reference herein to the office or agency of
the Company in the City of Chicago, Illinois, for the
payment of the principal of, premium, if any, and
interest on the 2023 PC Bond, or the registration,
transfer or exchange thereof, being to American National
Bank and Trust Company of Chicago. In the event of the
resignation or inability to act of American National Bank
and Trust Company of Chicago, then a successor agent for
all such purposes in the City of Chicago, Illinois, shall
be appointed by the Board of Directors of the Company.

The 2023 PC Bond shall be dated as of the date of
authentication thereof, except as otherwise provided in
Section 10 of the Original Mortgage.

The 2023 PC Bond will be issued to evidence and secure a
loan to the Company by the City pursuant to the Loan
Agreement of certain funds to be acquired by the City
through the issuance of City of Petersburg, Indiana,
Pollution Control Refunding Revenue Bonds, Series 1993C
(Indianapolis Power & Light Company Project)(the "Series
1993C Bonds"), authenticated and delivered under and
pursuant to an Indenture of Trust dated as of October 1,
1993 (hereinafter called the "City Indenture"), by and
between the City and Bank One, Indianapolis, NA, as
Trustee (the "City Trustee").  Pursuant to the City's
pledge and assignment of the Loan Agreement, as set forth
in the City Indenture, the 2023 PC Bond shall be issued
to the City and assigned to the City Trustee.  All of the
proceeds of the Series 1993C Bonds will be used for the
refunding of the aggregate principal amount of Thirty
Million Dollars ($30,000,000) of the City's Pollution
Control Revenue Bonds, Series 1983 (Indianapolis Power &
Light Company Project) issued by the City pursuant to
applicable loan agreements.

Upon the notice and in the manner and with the effect
provided in this Section 2, the 2023 PC Bond shall be
redeemable prior to the maturity thereof under any one or
more of the following circumstances:

(a)  In whole, at the option of the Company, if the
Facilities or Unit 4 of the Petersburg Generating Station
serviced by the Facilities shall have been damaged or
destroyed (i) to such extent that they cannot be
reasonably expected, in the opinion of the Company, to be
restored within a period of six (6) months to the
condition thereof immediately preceding such damage or
destruction, or (ii) to such extent that the Company, in
its reasonable opinion, is thereby prevented from
carrying on its normal operations for a period of six (6)
months or more, or (iii) to such extent that the
restoration thereof would not be, taking into
consideration the net proceeds of any insurance payable
as a result of such damage or destruction, economic in
the reasonable opinion of the Company.

(b)  In whole, at the option of the Company, if title to,
or the temporary use of, all or substantially all of the
Facilities or Unit 4 of the Petersburg Generation Station
serviced by the Facilities, shall have been taken, under
the exercise of the power of eminent domain, or should
any governmental body or agency exercise any right which
it may have to purchase or designate a purchaser of the
same, or should such property be sold to any governmental
body or agency so that the result of such taking or
takings is that (i) the Company, in its reasonable
opinion, is thereby prevented from carrying on its normal
operations of either the Facilities or such Unit 4 for a
period of six (6) months or more, (ii) the restoration
required as a result of the taking cannot be reasonably
expected, in the opinion of the Company, to be completed
in a period of six (6) months, or (iii) the restoration
thereof, taking into consideration the net proceeds from
such eminent domain award, would not be economic in the
reasonable opinion of the Company.

(c)  In whole, at the option of the Company, if, as a
result of any changes in the Constitution or law of the
State of Indiana or the Constitution or law of the United
States of America or of legislative or administrative
action (whether state or federal) or by final decree,
judgment or order of any court or administrative body
(whether state or federal) entered after the contest
thereof by the Company in good faith or the decision of
the Company not to contest the same, the Loan Agreement
shall, in the reasonable opinion of counsel for the
Company, have become void or unenforceable or impossible
of performance in accordance with the intent and purpose
of the parties as expressed in the Loan Agreement; or
unreasonable burdens or excessive liabilities shall, in
the reasonable opinion of the Company, have been imposed
upon the City or the company, with respect to the
Facilities or operation thereof, including without
limitation federal, state or other ad valorem, property,
income or other taxes not being imposed on the date of
the Loan Agreement other than ad valorem taxes presently
levied upon privately owned property used for the same
general purpose as the Facilities.

(d)  In whole, at the option of the Company, if changes
in the economic availability of raw materials, operating
supplies or facilities necessary for the operation of the
Facilities or the operation of Unit 4 of the Petersburg
Generating Station serviced by the Facilities shall have
occurred or technological or other changes shall have
occurred which render the Facilities or said Unit 4
uneconomic for use in the reasonable opinion of the
company.

(e)  In part, at the option of the Company, to the extent
of net proceeds received from any condemnation award,
taking or sale as stated herein, if title to, or the
temporary use of any portion of the Facilities shall have
been taken under the exercise of the power of eminent
domain, or should any governmental body or agency
exercise any right it may have to pruchase or designate a
purchaser of the same, or should such property be sold to
any governmental body or agency; provided the Company
shall furnish to the City and the City Trustee a
certificate of an Independent Engineer (as defined in the
Loan Agreement) selected by the Company stating (i) that
the property forming the part of the Facilities that was
taken by such condemnation, taking or sale is not
essential to the character or significance of the
Facilities, or (ii) that the Facilities have been
restored to a condition substantially equivalent to their
condition prior to the taking by such condemnation,
taking or sale proceedings, or (iii) that improvements
have been acquired which are suitable for the operation
of the Facilities.

(f)  In whole, at any time on or after October 1, 2003,
or in part on any interest payment date on or after
October 1, 2003, at the option of the Company at a price
equal to the principal amount of the 2023 PC Bond so to
be redeemed and accrued interest to the date of
redemption, together with a premium equal to a percentage
of the principal amount thereof set forth under the
heading "Redemption Premium" in the form of the 2023 PC
Bond hereinafter recited, so long as the Company is not
in default under the Loan Agreement or the 2023 PC Bond.

(g)  In the event all or substantially all of the
mortgaged and pledged property under the Mortgage, or all
or substantially all such property used in the business
of generating, manufacturing, transporting, transmitting,
distributing or supplying electricity, should be taken by
exercise of the power of eminent domain, or should any
governmental body or agency exercise any right which it
may have to purchase or designate a purchaser of the
same, or should such property be sold to any governmental
body or agency, the Company shall be obligated to redeem
the 2023 PC Bond outstanding as promptly as possible in
accordance with paragraph B of Section 69 of the Original
Mortgage.

(h)  In the event that the Company is notified by the
City Trustee that (i) an event of default under the City
Indenture has occurred and is continuing, and (ii) the
City Trustee has declared the principal of all the Series
1993C Bonds then outstanding immediately due and payable
pursuant to the City Indenture, the Company shall call
for redemption, on a redemption date selected by it not
later than thirty (30) days following the date on which
such notice is mailed, the 2023 PC Bond outstanding, and
shall on such redemption date redeem the same; provided,
however, that such requirement of redemption shall be
deemed waived, if prior to the date fixed for such
redemption of the 2023 PC Bond (x) such event of default
is waived or cured as set forth in the City Indenture, or
(y) there shall have occurred any completed default (as
defined in the Mortgage) which affects any bond of any
series outstanding under the Mortgage and which completed
default has not been cured and made good prior to such
redemption date, it being the intent of this proviso
that, in lieu of such right to redemption, the holder of
the 2023 PC Bond shall be entitled only to such rights as
are available to the holders of bonds of any other series
outstanding under the Mortgage in the event of such
completed default; and in case of any subsequent
occurrence or continuance of the events described in (i)
and (ii) of this Section 2(h), the Company shall have the
same obligation (subject to the same proviso) to redeem
the 2023 PC Bond.

(i) In the event the City Trustee notifies the Company
and the City that the interest payable on the Series
1993C Bonds held by persons other than a "substantial
user" or a "related person" as those terms are used in
Section 147(a)(2) of the Internal Revenue code of 1986,
as amended, has been determined by a court of competent
jurisdiction or a formal ruling of the Internal Revenue
Service to be subject to federal income taxation by
reason of a breach by the Company of any covenant,
agreement or representation in the Loan Agreement, the
Company shall call the 2023 PC Bond then outstanding to
be redeemed on the next succeeding interest payment date
within one hundred eighty (180) days after the date of
such notice; provided, however, that such requirement of
redemption, whether in whole or in part shall be deemed
waived if, prior to the date fixed for redemption of the
2023 PC Bond pursuant to this Section 2(i), there shall
have occurred any completed default (as defined in the
Mortgage) which affects any bond of any series
outstanding under the Mortgage and which completed
default has not been cured and made good prior to such
redemption date, it being the intent of this proviso
that, in lieu of such right to redemption, the holder of
the 2023 PC Bond shall be entitled only to such rights as
are available to the holders of bonds of any other series
outstanding under the Mortgage in the event of such
completed default; but when any such completed default
shall have been cured and made good, if interest on the
Series 1993C Bonds shall still be taxable as described
above, the Company shall have the same obligation
(subject to the same proviso) to redeem the 2023 PC Bond
on the next succeeding interest payment date within one
hundred eighty (180) days after the curing and making
good of such completed default; provided further, that
the Company may call for redemption such portion of the
2023 PC Bond, which in the written opinion of an attorney
or firm of attorneys of nationally recognized standing on
the subject of municipal bonds, would allow the City
Trustee to redeem the Series 1993C Bonds in part, which
redemption would have the result that the interest
payable on the Series 1993C Bonds remaining outstanding
after such redemption in part would not be subject to
federal income taxation in the hands of persons other
than a "substantial user" or a "related person" as those
terms are used in Section 147(a)(2) of the Internal
Revenue Code of 1986, as amended.

In case of redemption of 2023 PC Bond in whole for the
purpose of repayment under the Loan Agreement pursuant to
subsection (a), (b), (c), (d), (f), (g), (h) or (i)
above, the amounts payable upon redemption of 2023 PC
Bond shall be a sum sufficient, together with other funds
deposited with the City Trustee and available for such
purpose, to pay the principal of (and premium, in the
case of redemption pursuant to (f) above, and interest on
the 2023 PC Bond then outstanding and to pay all
reasonable and necessary fees and expenses of the City
Trustee accrued and to accrue through final payment of
the 203 PC Bond.

In case of redemption in part pursuant to (e), (f) or (i)
above, the amount payable by the Company under this
Thirty-Eighth Supplemental Indenture, the Loan Agreement
and the 2023 PC Bond shall be a sum sufficient, together
with other funds deposited with the Trustee and available
for such purpose, to pay the principal of (and premium in
the case of prepayment pursuant to (f) above) and
interest on the 2023 PC Bond so to be redeemed, which sum
together with other funds deposited with the City Trustee
and available for such purpose shall be sufficient to pay
the principal of, premium, if any, and interest on the
Series 1993C Bonds and to pay all reasonable and
necessary fees and expenses of the City Trustee accrued
and to accrue through such partial prepayment.

The 2023 PC Bond and the Series 1993C Bonds shall be
redeemable at any time within one hundred eighty (180)
days following the event or events described as giving
rise to an option of the Company to redeem them in
subsections (a), (b), (c), (d) or (e) above.

To exercise any of the options granted to redeem the 2023
PC Bond in whole or in part or to comply with any
obligations to redeem the 2023 PC Bond in whole or in
part imposed in this Section 2, the Company shall give
written notice of the date of redemption to the City
Trustee, which date shall be not less than thirty (30)
days nor more than ninety (90) days from the date the
notice is mailed.  NO further notice, by publication or
otherwise, shall be required for redemption of the 2023
PC Bond, and the requirements of Section 59 of the
Mortgage for notice by newspaper publication shall not
apply to the 2023 PC Bond.

At the option of the holder, the 2023 PC Bond, upon
surrender thereof at the office or agency of the company
in Chicago, Illinois, together with a written instrument
of transfer in form approved by the Company duly executed
by the holder or by his duly authorized attorney, shall
be exchangeable for a like aggregate principal amount of
fully registered bonds of the same series of other
authorized denominations.

The 2023 PC Bond will be nontransferable except to the
City Trustee and successors thereto, if any, and to the
Company.  To the extent that it is transferable, it is
tranferable by the registered holder thereof, in person
or by attorney duly authorized in writing, on the books
of the Company at the office or agency of the Company in
the City of Chicago, Illinois, upon surrender thereof for
cancellation at said office and upon presentation of a
written instrument of transfer duly executed.  Thereupon,
the Company shall issue in the name of the transferee,
and the Trustee shall authenticate and deliver, a new
registered 2023 PC Bond or Bonds, in authorized
denominations, of equal aggregate principal amount.  Any
such transfer shall be subject to the terms and
conditions specified in the Mortgage and in this Thirty-
Eighth Supplemental Indenture.

The Company shall not be required to transfer or exchange
the 2023 PC Bond for a period of ten (10) days next
preceding any interest payment date of said bond.

Except as set forth herein, no charge shall be made upon
any transfer or exchange of any of the 2023 PC Bond other
than for any tax or taxes or other governmental charge
required to be paid by the Company.

The 2023 PC Bond shall be limited to an aggregate
principal amount of Thirty Million Dollars ($30,000,000)
and shall be issued under the provisions of Article VII
of the Original Mortgage.

Section 3.  The 2023 PC Bond, and the Trustee's
Certificate to be endorsed thereon, shall be in the
following forms, respectively:

[form of face of 2023 PC Bond]

This First Mortgage Bond, 5.50% Series, due 2023
(hereinafter called the "2023 PC Bond") is not
transferable except to a successor trustee under the
Indenture of Trust dated as of October 1, 1993, between
the City of Petersburg, Indiana and Bank One,
Indianapolis, NA, as the Trustee, or to Indianapolis
Power & Light Company.



     INDIANAPOLIS POWER & LIGHT COMPANY
     First Mortgage Bond, 5.50% Series, Due 2023
     Due October 1, 2023

No.                                     $

INDIANAPOLIS POWER & LIGHT COMPANY, a corporation of the
State of Indiana (hereinafter called the "Company"), for
value received, hereby promises to pay to Bank One,
Indianapolis, NA, as the Trustee (hereinafter called the
"City Trustee") under the Indenture of Trust between the
City of Petersburg, Indiana (the "City") and the City
Trustee, dated as of October 1, 1993, (the "City
Indenture") or registered assigns, on October 1, 2023, at
the office of the Company, in the City of Indianapolis,
State of Indiana, or if no such office is maintained at
the time by the Company, then at the office or agency of
the Company for such purpose in the City of Chicago,
State of Illinois, Thirty Million Dollars ($30,000,000)
in lawful money of the United States of America, and to
pay to the registered owner hereof interest thereon from
the first day of October or the first day of April next
preceding the date of this 2023 PC Bond, at the rate of
five and fifty hundredths per centum (5.50%) per annum in
like lawful money at said office or agency, on October 1
and April 1 in each year, until the Company's obligation
with respect to the payment of such principal shall have
been discharged.  The interest payable hereunder on
October 1 or April 1 will be paid to the registered owner
of this 2023 PC Bond at or before the close of business
on such dates, or if such date shall be a Saturday,
Sunday, holiday or a day on which banking institutions in
the City of Indianapolis or the city of any paying agents
are authorized by law to close, on or before the close of
business on the next succeeding business day on which
such banking institutions are open for business.

REFERENCE IS MADE TO THE FURTHER PROVISIONS OF THIS 2023
PC BOND SET FORTH ON THE REVERSE HEREOF.  SUCH FURTHER
PROVISIONS SHALL, FOR ALL PURPOSES, HAVE THE SAME EFFECT
AS THOUGH FULLY SET FORTH IN THIS PLACE.

No recourse shall be had for the payment of the principal
of or interest on this 2023 PC Bond against any
incorporator or any past, present or future subscriber to
the capital stock, stockholder, officer or director of
the Company or of any predecessor or successor
corporation, as such, either directly or through the
Company or any predecessor or successor corporation,
under any rule of law, statute, or constitution or by the
enforcement of any assessment or otherwise, all such
liability of incorporators, subscribers, stockholders,
officers and directors, as such, being waived and
released by the terms of the Mortgage, as herein defined.

This 2023 PC Bond shall not become obligatory until
American National Bank and Trust Company of Chicago, the
Trustee under the Mortgage, as herein defined, or its
successor thereunder, shall have signed the form of
certificate endorsed hereon.

IN WITNESS WHEREOF, Indianapolis Power & Light Company
has caused this 2023 PC Bond to be signed in its name by
its President or one of its Vice-Presidents, by his
signature or a facsimile thereof, and its corporate seal
to be affixed hereon, attested by its Secretary or one of
its Assistant Secretaries, by his signature or a
facsimile thereof.

                   INDIANAPOLIS POWER & LIGHT COMPANY



Dated:             By_______________________________________
                           Vice-President

Attest:

By_____________________________
           Secretary


[Form of Trustee's Certificate on 2023 PC Bond]


     Trustee's Certificate

This 2023 PC Bond is one of the bonds, of the series
herein designated, provided for in the within-mentioned
Mortgage and Thirty-Eighth Supplemental Indenture
thereto.

                       AMERICAN NATIONAL BANK AND
                         TRUST COMPANY OF CHICAGO
                                               Trustee


                       By______________________________________
                                   Authorized Signature

[Form of Reverse Side of 2023 PC Bond]

     INDIANAPOLIS POWER & LIGHT COMPANY
     First Mortgage Bond, 5.50% Series, due 2023
     Due October 1, 2023

This 2023 PC Bond is one of an issue of bonds of the
Company, issuable in series, and is one of a series known
as its First Mortgage Bonds, 5.50% Series, due 2023
(herein called the "2023 PC Bond") limited in aggregate
principal amount to Thirty Million Dollars ($30,000,000)
and established by a Thirty-Eighth Supplemental Indenture
dated as of October 1, 1993, all bonds of all series
issued and to be issued under and equally secured (except
insofar as any sinking or other fund, established in
accordance with the provisions of the Mortgage
hereinafter mentioned, may afford additional security for
the bonds of any particular series) by a Mortgage and
Deed of Trust, dated as of May 1, 1940, executed by the
Company to American National Bank and Trust Company of
Chicago, as the Trustee (which Mortgage and Deed of Trust
as supplemented and modified by all supplemental
indentures thereto is hereinafter referred to as the
"Mortgage"), to which Mortgage reference is made for a
description of the property mortgaged and pledged, the
nature and extent of the security, the rights of the
bearers or registered owners of the bonds in respect of
such security, the duties and immunities of the Trustee
and terms and conditions upon which the bonds are
secured.

This 2023 PC Bond evidences and secures a loan made by
the City to the Company, pursuant to a Loan Agreement,
dated as of October 1, 1993, between the City and the
Company (the "Loan Agreement").  In order to obtain funds
for such loan, the City, contemporaneously with the issue
of this 2023 PC Bond, will issue Thirty Million Dollars
($30,000,000) principal amount of its Pollution Control
Refunding Revenue Bonds, Series 1993C (Indianapolis Power
& Light Company Project) (the "City Bonds") under and
pursuant to the City Indenture.  The City Bonds are
payable from payments made by the Company of principal
of, premium, if any, and interest on this 2023 PC Bond
and from moneys in the Bond Fund created under the City
Indenture.  The obligation of the Company to pay the
principal of, premium, if any, and interest on this 2023
PC Bond shall be discharged to the extent that any moneys
in said Bond Fund are available for payments on the City
Bonds and are directed by the Company to be applied
thereto, all as provided in the Thirty-Eighth
Supplemental Indenture.

This 2023 PC Bond is not subject to redemption prior to
October 1, 2003, except as provided in Section 2 of the
Thirty-Eighth Supplemental Indenture, to which reference
is made for full description of redemption provisions.

This 2023 PC Bond is subject to redemption in whole at
any time on or after October 1, 2003, or in part on any
interest payment date on or after October 1, 2003, at the
option of the Company, upon at least thirty (30) days
prior notice, all as provided in the Thirty-Eighth
Supplemental Indenture, at a price equal to the principal
amount of the 2023 PC Bond so to be redeemed and accrued
interest to the date of redemption, together with a
premium equal to a percentage of the principal amount
thereof set forth below under the heading "Redemption
Premium":

If Redeemed During the Twelve Months
Ending With the Thirtieth Day               Redemption
of September of the Year Stated             Premium

     2004................................      2.0%
     2005................................      1.0%

and without premium if redeemed after September 30, 2005.

With the consent of the Company and to the extent
permitted by and as provided in the Mortgage, the rights
and obligations of the Company and/or of the holders of
the bonds and/or coupons and/or the terms and provisions
of the Mortgage and/or any instruments supplemental
thereto may be modified or altered by affirmative vote of
the holders of at least sixty-six and two-thirds per
centum (66-2/3%) in principal amount of the bonds
affected by such modification or alteration then
outstanding under the Mortgage (excluding bonds
disqualified from voting by reason of the Company's
interest therein as provided in the Mortgage); provided
that no such modification or alteration shall permit the
extension of the maturity of the principal of this 2023
PC Bond or the reduction in the rate of interest hereon
or any other modification in the terms of payment of such
principal or interest without the consent of the holder
hereof.  The principal hereof may be declared or may
become due and payable prior to the stated date of
maturity hereof, on the conditions, in the manner and at
the time set forth in the Mortgage, upon the occurrence
of a completed default as in the Mortgage provided.

No reference herein to the Mortgage, and no provision of
this 2023 PC Bond or of the Mortgage, shall alter or
impair the obligation of the Company, which is absolute
and unconditional, to pay, subject to the provisions of
the Thirty-Eighth Supplemental Indenture, the principal
of, and premium, if any, and interest on this 2023 PC
Bond at the place, at the respective times and at the
rate and the manner herein prescribed.

This 2023 PC Bond is issuable only in full registered
form without coupons in denominations of Five Thousand
Dollars and any larger denomination which is a whole
multiple of Five Thousand Dollars.

This 2023 PC Bond will be nontransferable except to the
City Trustee and successor thereto, if any, and to the
Company.  To the extent that it is transferable, it is
transferable by the registered holder thereof, in person
or by attorney duly authorized in writing, on the books
of the Company at the office or agency of the Company in
the City of Chicago, Illinois, upon surrender thereof for
cancellation at said office and upon presentation of a
written instrument of transfer duly executed.  Thereupon,
the Company shall issue in the name of the transferee,
and the Trustee shall authenticate and deliver, a new
registered 2023 PC Bond or Bonds, in authorized
denominations, of equal aggregate principal amount.  Any
such transfer shall be subject to the terms and
conditions specified in the Mortgage and in the Thirty-
Eighth Supplemental Indenture.

[End of 2023 PC Bond Form]

Section 4. Until the 2023 PC Bond in definitive form is
ready for delivery, the Company may execute, and upon its
request in writing the Trustee shall authenticate and
deliver, in lieu thereof, fully registered 2023 PC Bond
in temporary form, as provided in Section 15 of the
Original Mortgage. Such bond may, in lieu of the
statement of the specific redemption prices required to
be set forth in such bond in definitive form, include a
reference to this Thirty-Eighth Supplemental Indenture
for a statement of such redemption prices.

Section 5. The Company covenants and agrees that it will
duly and punctually pay to the holder of the 2023 PC Bond
the principal thereof, premium, if any, and interest on
said bond at the dates and place and in the manner
mentioned therein; provided, however, that:

     (a)  The obligation of the Company to pay the
principal of, and premium, if any, and interest on the
2023 PC Bond shall be discharged to the extent that any
moneys in the Series 1993C Bond Account within the Bond
Fund created under and pursuant to the City Indenture are
available for the payment of the principal of, or
premium, if any, of interest on the Series 1993C Bonds
and are directed by the Company to be applied to the
payment thereof in the manner provided in the City
Indenture on or prior to the dates on which the Company
is required to pay the principal of, or premium, if any,
or interest on the 2023 PC Bond.

     (b)  Except as otherwise provided in this Section 5,
the principal amount of any Series 1993C Bond acquired by
the Company and delivered to the City Trustee, or
acquired by the City Trustee and cancelled, shall be
credited against the obligation of the Company to pay the
principal of the 2023 PC Bond.

As the principal of, premium, if any, and interest on the
2023 PC Bond is paid or deemed paid in full, and upon its
receipt by the Company, such bond shall be delivered to
the Trustee for cancellation.  The Company shall promptly
inform the Trustee of all payments made and credits
availed of with respect to its obligations on the 2023 PC
Bond.  The Trustee shall not be required to recognize any
payment made or credit availed of with respect to any
2023 PC Bond unless it has received (a) the bond for
cancellation by it, or (b) a certificate signed by a duly
authorized officer of the City Trustee specifying the
amount of such payment or credit and the principal amount
of the 2023 PC Bond with respect to which the payment or
credit was applied.  In the absence of receipt by the
Trustee of any 2023 PC Bond, any such certificate shall
be controlling and conclusive.

Section 6. The covenant of the Company to make annual
payments to the Trustee for a Maintenance and Improvement
Fund as contained in Section 41 of the Original Mortgage
and in the first twenty-four Supplemental Indentures in
the Original Mortgage creating the several series of
First Mortgage Bonds presently outstanding under such
Supplemental Indentures shall not apply to nor be for the
benefit of the 2023 PC Bond, and the Company reserves the
right, without any consent of, or other action by, the
holder of the 2023 PC Bond, to amend, modify or delete
the provisions of the Mortgage relating to such
Maintenance and Improvement Fund and by acceptance of the
2023 PC Bond the holder thereof waives any right or
privilege so to consent or take any other action with
repsect thereto.

Section 7. The Company covenants that, so long as the
2023 PC Bond shall remain outstanding, it will comply
with all of the provisions of Section 47 of the Original
Mortgage, including the provisions with respect to
limitations on dividends and distributions and the
purchase and redemption of stock.

Section 8. The Trustee hereby accepts the trusts herein
declared, provided and created and agrees to perform the
same upon the terms and conditions herein and in the
Mortgage set forth and upon the following terms and
conditions:

The recitals contained herein and in the bonds shall be
taken as the statements of the Company, and the Trustee
assumes no responsibility for the correctness of the
same. The Trustee makes no representations as to the
validity or adequacy of the security afforded hereby, or
as to the validity of this Thirty-Eighth Supplemental
Indenture or of the 2023 PC Bond issued hereunder.

Section 9. Whenever in this Thirty-Eighth Supplemental
Indenture either of the parties hereto is named or
referred to, this shall, subject to the provisions of
Article XVII of the Original Mortgage, be deemed to
include the successors or assigns of such party, and all
the covenants and agreements in this Thirty-Eighth
Supplemental Indenture contained by or on behalf of the
Company, or by or on behalf of the Trustee, shall,
subject as aforesaid, bind and inure to the benefit of
the respective successors and assigns of such parties,
whether so expressed or not.


Section 10. Nothing in this Thirty-Eighth Supplemental
Indenture expressed or implied, is intended or shall be
construed to confer upon, or to give to, any person, co-
partnership or corporation, other than the parties hereto
and the holders of the bonds and coupons outstanding
under the Mortgage, any right, remedy, or claim under or
by reason of this Thirty-Eighth Supplemental Indenture or
any covenant, condition or stipulation hereof; and all
the covenants, conditions, stipulations, promises and
agreements in this Thirty-Eighth Supplemental Indenture
contained by or on behalf of the Company shall be for the
sole and exclusive benefit of the parties hereto and of
the holders of the bonds and of the coupons outstanding
under the Mortgage.

Section 11. The Company covenants that all of the terms,
provisions and conditions of the Mortgage shall be
applicable to the 2023 PC Bond issued hereunder, except
as herein otherwise provided and except insofar as the
same may be inconsistent with the provisions of this
Thirty-Eighth Supplemental Indenture.

Section 12. This Thirty-Eighth Supplemental Indenture is
dated as of October 1, 1993, although executed and
delivered on the date of the acknowledgment hereof by the
Trustee; and shall be simultaneously executed and
delivered in several counterparts, and all such
counterparts executed and delivered, each as an original,
shall constitute but one and the same instrument.

IN WITNESS WHEREOF, INDIANAPOLIS POWER & LIGHT COMPANY,
party of the first part, has caused its corporate name to
be hereunto affixed and this instrument to be signed and
acknowledged by its President or a Vice-President, and
its corporate seal to be hereto affixed and attested by
one of its Secretary or an Assistant Secretary, for and
in its behalf, and American National Bank and Trust
Company of Chicago, party of the second part, as Trustee,
has caused its corporate name to be hereunto affixed and
this instrument to be signed and acknowledged by one of
its Vice-Presidents, and its corporate seal to be hereto
affixed and attested by one of its Assistant Secretaries,
all as of the day, month and year first above written.


                      Indianapolis Power & Light Company


Attest:               By  /s/ Marcus E. Woods
                          Marcus E. Woods,
                          Vice-President
/s/ Clark L. Snyder
Clark L. Snyder,
Assistant Secretary

(Seal)

                       American National Bank and Trust
                          Company of Chicago,

Attest:                By  /s/ Ronald B. Bremen
                           Ronald B. Bremen,
                           Vice-President
/s/ Robert M. Selangowski
Robert M. Selangowski,
Assistant Secretary

(Seal)



State of Indiana     )
                     )  ss.:
County of Marion     )

On this 5th day of October, in the year 1993, before me,
a Notary Public in and for the County and State aforesaid,
personally came Marcus E. Woods, Vice-President, and
Clark L. Snyder, Assistant Secretary, of Indianapolis Power &
Light Company, one of the corporations described in and
which executed the foregoing instrument, to me personally
known and known to me personally to be such Vice-President,
and Assistant Secretary, respectively. Said Marcus E.
Woods and Clark L. Snyder being by me severally duly
sworn did depose and say that the said Marcus E. Woods
resides in Hendricks County, Indiana and the said
Clark L. Snyder resides in Marion County, Indiana; that
said Marcus E. Woods is Vice-President and said Clark L.
Snyder is Assistant Secretary of said Indianapolis Power
& Light Company; that each of them knows the corporate seal of
said corporation; that the seal affixed to said instrument
and bearing the name of said corporation is such corporate seal;
that is was so affixed by order of the Board of Directors of
said corporation; and that each of them signed his
name thereto by like order; and each of them acknowledged
the execution of said instrument on behalf of said corporation
to be his free and voluntary act and deed and the free and
voluntary act and deed of said corporation, for the uses
and purposes therein set forth.

In Witness Whereof, I have hereunto set my hand and
affixed my official seal this 5th day of October, 1993.


                         /s/ Dinah L. Kirkham
                         Dinah L. Kirkham,
                         Notary Public

My Commission Expires:
  June 23, 1996

My County of Residence is:
  Johnson


(Notarial Seal)



State of Illinois    )
                     )  ss.:
County of Cook       )


  On this 4th day of October, in the year 1993, before
me, a Notary Public in and for the County and State
aforesaid, personally came Ronald B. Bremen, Vice-
President, and Robert M. Selangowski, Assistant
Secretary, of American National Bank and Trust
Company of Chicago, one of the corporations described
in and which executed the foregoing instrument,
to me personally known and known to me personally to
be such Vice-President and Assistant Secretary,
respectively. Said Ronald B. Bremen and Robert M.
Selangowski, being by me severally sworn did depose
and say that the said Ronald B. Bremen resides in
Glencoe, Illinois, and that the said Robert M.
Selangowski resides in Lansing, Illinois; that said
Ronald B. Bremen is Vice-President and said Robert M.
Selangowski is Assistant Secretary of said American
National Bank and Trust Company of Chicago; that
each of them knows the corporate seal of said corpora-
tion; that the seal affixed to said instrument and
bearing the name of said corporation is such corporate
seal; that it was so affixed by authority of the
Board of Directors of said corporation; that each of them
signed his name thereto by like authority; and each of
them acknowledged the execution of said instrument on
behalf of said corporation to be his free and voluntary
act and deed and the free and voluntary act and deed
of said corporation, for the uses and purposes therein
set forth.

In Witness Whereof, I have hereunto set my hand and
affixed my official seal this 4th day of October, 1993.



                                /s/ Bernadette G. Janairo
                                Bernadette G. Janairo,
                                Notary Public

My Commission Expires: May 22, 1994


My County of Residence is:
  Cook

(Notarial Seal)

                        This instrument was prepared by
                                Marcus E. Woods,
                                Attorney at Law

<PAGE>
                                                                   Exhibit 4.4.9

                    INDIANAPOLIS POWER & LIGHT COMPANY

                                      TO

                       AMERICAN NATIONAL BANK AND TRUST
                              COMPANY OF CHICAGO
                                                TRUSTEE

                                ---------------

                      THIRTY-NINTH SUPPLEMENTAL INDENTURE

                                ---------------

                         DATED AS OF FEBRUARY 1, 1994

                      ESTABLISHING FIRST MORTGAGE BONDS,

                            6.05% SERIES, DUE 2004


                               TABLE OF CONTENTS*

                                       OF

                      THIRTY-NINTH SUPPLEMENTAL INDENTURE

                                       OF

                       INDIANAPOLIS POWER & LIGHT COMPANY

                                                                PAGE
                                                                ----

Parties..................................................         1
Recitals.................................................         1
Section 1  Granting clauses..............................         3
             Part I   Electric Distributing Systems......         3
             Part II  Steam and Hot Water Distributing
                        Systems..........................         4
             Part III Indeterminate Permits and
                        Franchises.......................         4
             Part IV   Other Property....................         5
           General and after-acquired title..............         6
Section 2  Designation of thirty-seventh series of bonds
             and kind and denominations thereof..........         6
           Record date for payment of interest...........         7
           Designation of American National Bank and
             Trust Company of Chicago as paying agent....         7
           Bonds issued in book-entry form...............         7
           Exchange of bonds.............................         9
           Transfer of bonds.............................         9
           Series limited to $80,000,000.................        10
Section 3  Form of fully registered bond.................        10
           Form of Trustee's certificate on bonds........        12
Section 4  Temporary bonds...............................        14
Section 5  Annual Payments for Maintenance and Improvement
             Fund........................................        14
Section 6  Compliance with Section 47 of Original Mortgage
             with respect to dividend restrictions.......        15
Section 7  Acceptance of trusts by Trustee and conditions
             of acceptance...............................        15
Section 8  Successors and assigns........................        15
Section 9  Limitation of rights hereunder................        15

- ---------
  *Table of Contents is not part of the Thirty-Ninth
Supplemental Indenture and should not be considered such.
It is included herein only for purposes of convenient reference.


                                                                PAGE
                                                                ----
Section 10  Compliance with terms, provisions and
              conditions of Mortgage.....................        16
Section 11  Execution in counterparts....................        16
Testimonium..............................................        17
Signatures and Seals.....................................        17
Acknowledgements.........................................        18


                                       ii

  THIS THIRTY-NINTH SUPPLEMENTAL INDENTURE, dated as of
February 1, 1994, between Indianapolis Power & Light Company,
a corporation of the State of Indiana, hereinafter sometimes
called the "Company," party of the first part, and American
National Bank and Trust Company of Chicago, a national banking
association, as Trustee, hereinafter sometimes called the
"Trustee," party of the second part;

  Whereas, the Company by a Mortgage and Deed of Trust
(hereinafter sometimes called the "Original Mortgage" when
referred to as existing prior to any supplement thereto or
modification thereof, and the "Mortgage" when referred to
as now or heretofore supplemented and modified) dated as
of May 1, 1940, made to said American National Bank and
Trust Company of Chicago, as Trustee, to secure the payment
of the bonds issued from time to time under the Mortgage
for the purposes of and subject to the limitations
specified in the Mortgage, and to secure the performance
of the covenants therein contained, conveyed to
the Trustee thereunder upon certain trusts, terms and
conditions, and with and subject to certain provisos and
covenants therein contained, all and singular the property,
rights and franchises which the Company then owned or should
thereafter acquire, excepting the property expressly excepted
by the terms of the Original Mortgage or any indenture supplemental
thereto, to which Mortgage reference is hereby made for greater
certainty; and

  Whereas, the Original Mortgage has been supplemented
and modified by supplemental indentures dated as of
May 1, 1942, as of February 1, 1948, as of April
1, 1949, two as of October 1, 1949, as of February 1,
1951, as of March 1, 1953, as of June 1, 1956, as of
March 1, 1958, as of October 1, 1960, as of August 1, 1964,
as of April 1, 1966, as of May 1, 1967, as of May 1, 1968, as
of October 1, 1970, as of March 1, 1972, as of March 15,
1973, as of February 15, 1974, as of August 15, 1974,
as of September 15, 1975, as of June 1, 1976, as of July 1,
1976, as of August 1, 1977, as of September 1, 1978, two as of
August 1, 1981, as of November 1, 1983, as of November 1,
1984, as of December 1, 1984, as of September 1, 1985,
as of October 1, 1986, as of June 1, 1989, as of August 1,
1989, as of October 15, 1991, as of August 1, 1992, as of
April 1, 1993 and two as of October 1, 1993;

  Whereas, Section 8 of the Original Mortgage provides,
among other things, that the form of each series of bonds
(other than the initial issue of bonds) issued thereunder
shall be established by an indenture supplemental thereto
authorized by resolution of the Board of Directors of the
Company, and that the form of each series, as established
by the Board of Directors, shall specify the descriptive
title of the bonds and various other terms thereof, and
may also contain other provisions as the Board of Directors
may, in its discretion, cause to be inserted therein expressing
or referring to the terms and conditions upon which such bonds
are to be issued and secured under the Original Mortgage or
any indenture supplemental thereto or in modification
thereof; and

  Whereas, the Company now desires to provide for the
establishment, execution, authentication and delivery
under the Mortgage of bonds of a series to be known
as its "First Mortgage Bonds, 6.05% Series, due
2004" (the bonds of said series being hereinafter
sometimes referred to as the "2004 Bonds"), limited to
the aggregate principal amount of Eighty Million
Dollars ($80,000,000); and

  Whereas, all things necessary to make the 2004 Bonds
hereinafter described, when duly executed by the Company
and authenticated and delivered by the Trustee, valid,
binding and legal obligations of the Company, and to make
this Thirty-Ninth Supplemental Indenture a valid and binding
agreement supplemental to the Original Mortgage, have been
done and performed; and

  Whereas, the execution and delivery by the Company of
this Thirty-Ninth Supplemental Indenture, and the terms
of the 2004 Bonds, have been duly authorized by the Board
of Directors of the Company by appropriate resolutions of
said Board; and

  Whereas, it is provided in and by the Original Mortgage
that the Company will execute and deliver such further
instruments and do such further acts as may be necessary
or proper to carry out more effectually the purposes of the
Mortgage, and to make subject to the lien thereof any
property thereafter acquired and intended to be subject
to the lien thereof; and

  Whereas, the Company has, since the date of execution
and delivery of the Original Mortgage, purchased and
acquired property and desires by this Thirty-Ninth
Supplemental Indenture specifically to convey to
the Trustee such property for the better protection
and security of the bonds issued and to be issued under
the Original Mortgage, or any indenture supplemental thereto;

  Now, Therefore, This Indenture Witnesseth that, in
consideration of the premises and of the acceptance or
purchase of the 2004 Bonds by the registered owners thereof,
and of the sum of one dollar, lawful money of the United
States of America, to the Company duly paid by the Trustee
at or before the execution and delivery of this Thirty-Ninth
Supplemental Indenture, the receipt whereof is hereby
acknowledged, the Company and the Trustee, respectively,
have entered into, executed and delivered this Thirty-Ninth
Supplemental Indenture, for the uses and purposes hereinafter
expressed, that is to say:

  Section 1. The Company has granted, bargained, sold,
released, conveyed, assigned, transferred, mortgaged, pledged,
set over and confirmed, and by these presents does grant,
bargain, sell, release, convey, assign, transfer, mortgage,
pledge, set over and confirm (subject, however, to permitted
encumbrances as defined in the Original Mortgage), unto said
American National Bank and Trust Company of Chicago, as Trustee,
as herein provided, and its successors in the trusts declared
in the Original Mortgage and herein, all of the property, real,
personal and mixed, tangible and intangible, of every kind,
character and description which the Company has acquired
since the execution and delivery of the Original Mortgage and
now owns (except property, rights and assets of a character
similar to that excluded from the lien and operation of the
Mortgage by the Granting Clauses of the Original Mortgage, which
property, rights and assets are excluded from the lien and
operation of the Mortgage only to the extent provided therein),
including, but without otherwise limiting the generality of the
foregoing, the following described property situated within the
state of Indiana:

                           PART I.

              ELECTRIC DISTRIBUTING SYSTEMS.

  All electric distributing systems of the Company acquired by
it after May 1, 1940, the date of the Original Mortgage, and located in
the Counties of Bartholomew, Boone, Daviess, Greene, Hamilton, Hancock,
Hendricks, Johnson, Knox, Madison, Marion, Monroe, Morgan, Owen, Pike,
Putnam, Shelby and Sullivan, State of Indiana; and any additions to or
extensions of any such systems, together with the buildings, erections,
structures, transmission lines, power stations, sub-stations, engines,
boilers, condensers, pumps, turbines, machinery, tools, conduits,
manholes, insulators, dynamos, motors, lamps, cables, wires, poles,
towers, cross-arms, piers, abutments, switchboard equipment, meters,
appliances, instruments, apparatus, appurtenances, maps, records,
ledgers, contracts, facilities and other property or equipment used
or provided for use in connection with the construction, maintenance,
repair and operation thereof; together also with all of the
rights, privileges, rights-of-way, franchises, licenses, grants,
liberties, immunities, ordinances, permits and easements of the Company
in respect of the construction, maintenance, repair and operation of
said systems.

                           PART II.

        STEAM AND HOT WATER DISTRIBUTING SYSTEMS.

  All the steam and hot water distributing systems acquired by the
Company after May 1, 1940, the date of the Original Mortgage, and
located in the City of Indianapolis, Marion County, Indiana, and any
additions to or extensions of any such systems; together with the
buildings, erections, structures, boilers, heaters, engines, tanks,
pipe lines, mains, connections, service pipes, meters, tools, instruments,
appliances, apparatus, facilities, machinery and other property and
equipment used or provided for use in the construction, maintenance,
repair and operation thereof; and together also with all of the rights,
privileges, rights-of-way, franchises, licenses, grants, liberties,
immunities, ordinances, permits and easements of the Company in respect
of the construction, maintenance, repair and operation of said systems.

                           PART III.

          INDETERMINATE PERMITS AND FRANCHISES.

  All indeterminate permits, franchises, ordinances, licenses, and other
authorizations by or from any state, county, municipality, or other
governmental authority, acquired by the Company after May 1, 1940, the
date of the Original Mortgage, including particularly, but not limited to,
any indeterminate permits under the Public Service Commission Act of the
State of Indiana, and all Acts amendatory thereof and supplemental thereto,
and all right, title and interest therein now owned by the Company, and all
renewals, extensions and modifications of said indeterminate permits,
franchises, ordinances, licenses, and other authorizations, and of the
indeterminate permits, franchises, ordinances, licenses, and other
authorizations referred to in Part VII of the Granting Clauses of the
Original Mortgage.

                            PART IV.

                        OTHER PROPERTY.

  All other property, whether real, personal or mixed (except any in the
Mortgage expressly excepted), now owned by the Company and wheresoever
situated, including (without in anywise limiting or impairing by the
enumeration of the same the scope and intent of the foregoing or of any
general description contained in the Mortgages) all lands, flowage rights,
water rights, flumes, raceways, dams, rights-of-way and roads; all plants
for the generation of electricity by water, steam and/or other power, power
houses, telephone systems, water systems, steam heat and power plants, hot
water plants, sub-stations, transmission lines, distribution systems,
bridges, culverts and tracks; all offices, buildings and structures and the
equipment thereof; all machinery, engines, boilers, dynamos, machines,
regulators, meters, transformers, generators and motors; all appliances
whether electrical, gas or mechanical, conduits, cables and lines; all pipes
whether for water, steam heat and power, or other purposes; all mains and
pipes, service pipes, fittings, valves and connections, poles, wires, tools,
implements, apparatus, furniture and chattels; all municipal franchises,
indeterminate permits, and other permits; all lines for the transportation,
transmission and/or distribution of electric current, steam heat and power
or water for any purpose, including towers, poles, wires, cables, pipes,
conduits and all apparatus for use in connection therewith; all real estate,
lands, leases, leaseholds; all contracts, whether heat, light, power, water
or street lighting contracts; all easements, servitudes, licenses, permits,
rights, powers, franchises, privileges, rights-of-way and other rights in or
relating to real estate or the occupancy of the same and (except as
hereinafter or in the Mortgage expressly excepted) all the right, title and
interest of the Company in and to all other property of any kind or nature
appertaining to and/or used and/or occupied and/or enjoyed in connection
with any property hereinbefore described or referred to;

  Together with all and singular the tenements, hereditaments and appurte-
nances belonging or in anywise appertaining to the aforesaid property or any
part thereof, with the reversion and reversions, remainder and remainders and
(subject to the provisions of Section 64 of the Original Mortgage), the
tools, rent, revenues, issues, earnings, income, product and profits thereof,
and all the estate, right, title and interest and claim whatsoever, at law as
well as in equity, which the Company now has or may hereafter acquire in and
to the aforesaid property, indeterminate permits, franchises, ordinances,
licenses and other authorizations and every part and parcel thereof.

  Section 2. There shall be and is hereby established a series of bonds, lim-
ited in aggregate principal amount to Eighty Million Dollars ($80,000,000) to
be issued under and secured by the Mortgage, to be designated "6.05% Series,
due 2004", each of which shall also bear the descriptive title "First
Mortgage Bonds"; said bonds shall mature on February 1, 2004, and shall be
issued only as fully registered bonds without coupons in the denomination of
one thousand dollars and any larger denomination which is a multiple
of one thousand dollars; they shall bear interest from the beginning of the
current interest period during which each bond is dated, at the rate per
annum designated in the title thereof, payable semi-annually, on February 1
and August 1 of each year; and the principal of, premium, if any, and
interest on each said bond shall be payable in lawful money of the United
States of America at the office or agency of the Company in the City of
Chicago, Illinois. The person in whose name any such bond is registered at
the close of business on any record date (as hereinafter defined) with
respect to any interest payment date shall be entitled to receive the
interest payable on such interest payment date, except if and to the extent
the Company shall default in the payment of the interest due on such interest
payment date, in which case such defaulted interest shall be paid to the
person in whose name such bond is registered on the date of payment of such
defaulted interest or on a subsequent record date for such payment if one
shall have been established as hereinafter provided. A subsequent record
date with respect to payment of interest in default may be established by or
in behalf of the Company by notice mailed to the holders of the 2004 Bonds
not less than ten (10) days preceding such record date, which record date
shall not be more than thirty (30) days prior to the subsequent interest
payment date. The term "record date" as used in this Section with respect
to any regular interest payment date shall mean the tenth day next preceding
such interest payment date, or, if such tenth day shall be a legal holiday
or a day on which banking institutions in the City of Chicago, Illinois,
are authorized by law to close, the day next succeeding such tenth day which
shall not be a legal holiday or a day on which such institutions are autho-
rized to close.

  American National Bank and Trust Company of Chicago is hereby designated
and appointed the office and agency of the Company for the payment of the
principal of, premium, if any, and interest on the 2004 Bonds and for the
registration, transfer and exchange of such bonds as hereinafter provided;
all reference herein to the office or agency of the Company for the payment
of the principal of, premium, if any, and interest on the 2004 Bonds, or the
registration, transfer or exchange thereof, being to American National Bank
and Trust Company of Chicago. In the event of the resignation or inability
to act of American National Bank and Trust Company of Chicago, then a
successor agent for all such purposes in the City of Chicago, Illinois,
shall be appointed by the Board of Directors of the Company.

  The 2004 Bonds shall be dated as of the date of authentication thereof,
except as otherwise provided in Section 10 of the Original Mortgage.

  The 2004 Bonds shall initially be issued and held in book-entry form on
the books of the central depository system, The Depository Trust Company,
its successors, or any successor central depository system appointed by the
Company from time to time (the "Clearing Agency"). The Company and the
Trustee may, in connection herewith, do or perform or cause to be done or
performed any acts or things not adverse to the rights of the holders of the
2004 Bonds, as are necessary or appropriate to accomplish or recognize such
book-entry form 2004 Bonds.

  So long as the 2004 Bonds remain and are held in book-entry form on the
books of a Clearing Agency, then (a) any such 2004 Bond may be registered
upon the books kept by the Trustee in the name of such Clearing Agency, or
any nominee thereof, including Cede & Co., as nominee of The Depository
Trust Company; (b) the Clearing Agency in whose names such 2004 Bond is so
registered shall be, and the Company and the Trustee may deem and treat
such Clearing Agency as, the absolute owner and holder of such 2004 Bond
for all purposes of the Indenture, including, without limitation, the
receiving of payment of the principal of, premium, if any, and interest on
such 2004 Bond, the receiving of notice and giving of consent; (c) neither
the Company nor the Trustee shall have any responsibility or obligation
hereunder to any direct or indirect participant, within the meaning of
Section 17A of the Securities Exchange Act of 1934, as amended, of such
Clearing Agency, or any person on behalf of which, or otherwise in respect
of which, any such participant holds any interest in any 2004 Bond,
including, without limitation, any responsibility or obligation hereunder
to maintain accurate records of any beneficial interests in any 2004 Bond
or any responsibility or obligation hereunder with respect to the receiv-
ing by such participants or the beneficial owners of payment of principal,
premium, if any, or interest on any 2004 Bonds, the receiving by such
participants or the beneficial owners of notice or the giving of consent
by such participants or the beneficial owners; and (d) the Clearing
Agency is not required to present any 2004 Bond called for partial
redemption prior to receiving payment so long as the Trustee and the
Clearing Agency have agreed to the method for noting such partial redemption.

  If (a) the Company receives notice from the Clearing Agency which is cur-
rently the registered owner of the 2004 Bonds to the effect that such
Clearing Agency is unable or unwilling to discharge its responsibility as a
Clearing Agency for the 2004 Bonds or (b) the Company elects to discontinue
its use of such Clearing Agency as a Clearing Agency for the 2004 Bonds,
then the Company and Trustee each shall do or perform or cause to be done
or performed all acts or things, not adverse to the rights of the holders of
the 2004 Bonds, as are necessary or appropriate to discontinue use of such
Clearing Agency as a Clearing Agency for the 2004 Bonds and to transfer the
ownership of each of the 2004 Bonds to such person or persons, including any
other Clearing Agency, as the holder of the 2004 Bonds may direct in
accordance with the Indenture. Any expenses of such discontinuance and
transfer, including expenses of printing new certificates to evidence the
2024 Bonds, shall be paid by the Company.

  So long as the 2004 Bonds remain and are held in book-entry form on the
books of a Clearing Agency, the Trustee shall be entitled to request and
rely upon a certificate or other written representation from the Clearing
Agency or any participant or indirect participant with respect to the
identity of any beneficial owners of the 2004 Bonds as of a record date
selected by the Trustee. For purposes of determining whether the consent,
advice, direction or demand of a Bondholder has been obtained, the Trustee
shall be entitled to treat the beneficial owners of the 2004 Bonds as the
Bondholders and any consent, request, direction, approval, objection or
other instrument of such beneficial owner may be obtained in the same
fashion described in the Indenture.

  The 2004 Bonds shall not be subject to redemption by the Company prior to
the maturity thereof except out of monies deposited with the Trustee repre-
senting the proceeds of mortgaged and pledged property taken by the exercise
of the power of eminent domain or otherwise as provided in paragraph B of
Section 69 of the Mortgage, in which event the redemption price of the 2004
Bonds so to be redeemed shall be the principal amount of such bonds plus
accrued interest thereon to the date of redemption.

  At the option of the holder, any 2004 Bond, upon surrender thereof at said
office or agency of the Company together with a written instrument of
transfer in form approved by the Company duly executed by the holder or by
his duly authorized attorney, shall be exchangeable for a like aggregate
principal amount of fully registered bonds of the same series of other
authorized denominations.

  The 2004 Bonds shall be transferable on the books of the Company at said
office or agency of the Company in the City of Chicago, Illinois, by the
registered holder thereof, in person or by his duly authorized attorney,
upon surrender thereof for cancellation.

 The Company shall not be required to make transfers or exchanges of any of
the 2004 Bonds for a period of ten (10) days next preceding any interest
payment date of said bonds.

  No charge shall be made upon any transfer or exchange of any of the 2004
Bonds other than for any tax or taxes or other governmental charge required
to be paid by the Company.

  The 2004 Bonds shall be limited to an aggregate principal amount of Eighty
Million Dollars ($80,000,000) and shall be issued under the provisions of
Article VII of the Original Mortgage.

  Section 3. The 2004 Bonds, and the Trustee's Certificate to be endorsed
thereon, shall be in the following forms, respectively:

                            [form of face of bond]

                      INDIANAPOLIS POWER & LIGHT COMPANY

                  First Mortgage Bond, 6.05% Series, Due 2004
                             Due February 1, 2004

No.......                                                $......

  Indianapolis Power & Light Company, a corporation of the State of Indiana
(hereinafter called the Company), for value received, hereby promises to pay
to           or registered assigns, on February 1, 2004, at the office or
agency of the Company in the City of Chicago, Illinois,
Dollars in lawful money of the United States of America, and to pay
to the registered owner hereof interest thereon from the first day of
February or the first day of August next preceding the date of this bond, at
the rate of 6.05 per centum per annum in like lawful money, at said office
or agency on February 1 and August 1 in each year, until the Company's
obligation with respect to the payment of such principal shall have been
discharged. The interest payable hereunder on February 1 or August 1 will,
subject to the exception provided in Section 2 of the Thirty-Ninth
Supplemental Indenture hereinafter mentioned, be paid to the person in whose
name this bond is registered at the close of business on the record date,
which shall be the tenth day next preceding such interest payment date or,
if such tenth day shall be a legal holiday or a day on which banking
institutions in the City of Chicago, Illinois, are authorized by law to
close, the day next succeeding such tenth day which shall not be a legal
holiday or a day on which such institutions are authorized to close.

  REFERENCE IS MADE TO THE FURTHER PROVISIONS OF THIS BOND SET FORTH ON THE
REVERSE HEREOF. SUCH FURTHER PROVISIONS SHALL, FOR ALL PURPOSES, HAVE THE
SAME EFFECT AS THOUGH FULLY SET FORTH IN THIS PLACE.

  This bond shall not become obligatory until American National Bank and
Trust Company of Chicago, the Trustee under the Mortgage, or its successor
thereunder, shall have signed the form of certificate endorsed hereon.

  In Witness Whereof, Indianapolis Power & Light Company has caused this bond
to be signed in its name by its President or one of its Vice-Presidents, by
his signature or a facsimile thereof, and a facsimile of its corporate seal
to be imprinted hereon, attested by its Secretary or one of its Assistant
Secretaries, by his signature or a facsimile thereof.


                                Indianapolis Power & Light Company


Dated                           By______________________________________
                                   President.

Attest:

  By________________________
               Secretary.

                 [form of trustee's certificate on bonds]

                        Trustee's Certificate

  This bond is one of the bonds, of the series herein designated, provided
for in the within-mentioned Mortgage and Thirty-Ninth Supplemental Indenture.


                                   American National Bank and
                                   Trust Company of Chicago,
                                                    Trustee


                                   By_____________________________________
                                        Authorized Signature

                        [form of reverse side of bond]

                      INDIANAPOLIS POWER & LIGHT COMPANY

                  First Mortgage Bond, 6.05% Series, Due 2004
                             Due February 1, 2004

  This bond is one of an issue of bonds of the Company, issuable in series,
and is one of a series known as its First Mortgage Bonds, 6.05% Series, due
2004 (herein sometimes called the "2004 Bonds") limited in aggregate
principal amount to Eighty Million Dollars ($80,000,000) and established by
a Thirty-Ninth Supplemental Indenture, dated as of February 1, 1994, all
bonds of all series issued and to be issued under and equally secured
(except insofar as any sinking or other fund, established in accordance with
the provisions of the Mortgage hereinafter mentioned, may afford additional
security for the bonds of any particular series) by a Mortgage and Deed of
Trust, dated as of May 1, 1940, executed by the Company to American National
Bank and Trust Company of Chicago, as Trustee (which Mortgage and Deed of
Trust as supplemented and modified by all supplemental indentures thereto is
hereinafter referred to as the "Mortgage"), to which Mortgage reference is
made for a description of the property mortgaged and pledged, the nature and
extent of the security, the rights of the bearers or registered owners of the
bonds in respect of such security, the duties and immunities of the Trustee
and the terms and conditions upon which the bonds are secured.

  With the consent of the Company and to the extent permitted by and as pro-
vided in the Mortgage, the rights and obligations of the Company and/or of
the holders of the bonds and/or coupons and/or the terms and provisions of
the Mortgage and/or any instruments supplemental thereto may be modified or
altered by affirmative vote of the holders of at least sixty-six
and two-thirds per centum (66 2/3%) in principal amount of the bonds
affected by such modification or alteration then outstanding under the
Mortgage (excluding bonds disqualified from voting by reason of the
Company's interest therein as provided in the Mortgage); provided that no
such modification or alteration shall permit the extension of the maturity
of the principal of this bond or the reduction in the rate of interest hereon
or any other modification in the terms of payment of such principal or
interest without the consent of the holder hereof. The principal hereof may
be declared or may become due and payable prior to the stated date of
maturity hereof, on the conditions, in the manner and at the time set forth
in the Mortgage, upon the occurrence of a completed default as in the
Mortgage provided.

  The 2004 Bonds are issuable only in fully registered form without coupons
in the denomination of one thousand dollars and any larger denomination
which is a multiple of one thousand dollars. In the manner and upon
payment of the charges hereinafter mentioned, the 2004 Bonds, upon surrender
thereof at the office or agency of the Company in the City of Chicago,
Illinois, together with a written instrument of transfer in form approved by
the Company duly executed by the registered holder or by his duly authorized
attorney, are exchangeable for a like aggregate principal amount of fully
registered bonds of the same series of other authorized denominations.

  This bond is transferable as prescribed in the Mortgage by the registered
owner hereof in person, or by his duly authorized attorney, at the office or
agency of the Company in the City of Chicago, Illinois, upon surrender and
cancellation of this bond and upon presentation of a written instrument of
transfer, duly executed and upon payment of the charges hereinafter
mentioned, and, thereupon, a new fully registered bond of the same series
for a like principal amount will be issued to the transferee in exchange
herefor as provided in the Mortgage. The Company and the Trustee may deem
and treat the person in whose name this bond is registered as the absolute
owner hereof for the purpose of receiving payment and for all other purposes.

  No charge shall be made upon any transfer or exchange of any of the 2004
Bonds other than for any tax or taxes or other governmental charge required
to be paid by the Company.

  The Company shall not be required to make transfers or exchanges of any of
the 2004 Bonds for a period of ten (10) days next preceding any interest pay-
ment date of said bonds.

  The 2004 Bonds are not subject to redemption by the Company prior to the
maturity thereof except out of monies deposited with the Trustee representing
the proceeds of mortgaged and pledged property taken by the exercise of the
power of eminent domain or otherwise as provided in paragraph B of Section 69
of the Mortgage, in which event the redemption price of the 2004 Bonds so to
be redeemed shall be the principal amount of such bonds plus accrued interest
thereon to the date of redemption.

  No recourse shall be had for the payment of the principal of or interest on
this bond against any incorporator or any past, present or future subscriber
to the capital stock, stockholder, officer or director of the Company or of
any predecessor or successor corporation, as such, either directly or through
the Company or any predecessor or successor corporation, under any rule of
law, statute or constitution or by the enforcement of any assessment or other-
wise, all such liability of incorporators, subscribers, stockholders, officers
and directors, as such, being waived and released by the terms of the Mort-
gage.

  Section 4. Until the 2004 Bonds in definitive form are ready for delivery,
the Company may execute, and upon its request in writing the Trustee shall au-
thenticate and deliver, in lieu thereof, fully registered 2004 Bonds in tempo-
rary form, as provided in Section 15 of the Original Mortgage. Such bonds may,
in lieu of the statement of the specific redemption prices required to be set
forth in such bonds in definitive form, include a reference to this Thirty-
Ninth Supplemental Indenture for a statement of such redemption prices.

  Section 5. The covenant of the Company to make annual payments
to the Trustee for a Maintenance and Improvement Fund as contained in Section
41 of the Original Mortgage and in the first twenty-four Supplemental Inden-
tures to the Original Mortgage creating the several series of First Mortgage
Bonds presently outstanding under such Supplemental Indentures shall not
apply to, or be for the benefit of, the 2004 Bonds, and the Company reserves
the right, without any consent of, or other action by, the holders of the
2004 Bonds, to amend, modify or delete the provisions of the Mortgage
relating to such Maintenance and Improvement Fund, and by acceptance of the
2004 Bonds, the holders thereof waive any right or privilege so to consent or
take any other action with respect thereto.

  Section 6. The Company covenants that, so long as any of the 2004 Bonds
shall remain outstanding, it will comply with all of the provisions of
Section 47 of the Original Mortgage, including the provisions with respect
to limitations on dividends and distributions and the purchase and
redemption of stock.

  Section 7. The Trustee hereby accepts the trusts herein declared, provided
and created and agrees to perform the same upon the terms and conditions
herein and in the Mortgage set forth and upon the following terms and
conditions:

  The recitals contained herein and in the bonds shall be taken as the state-
ments of the Company, and the Trustee assumes no responsibility for the cor-
rectness of the same. The Trustee makes no representations as to the validity
or adequacy of the security afforded hereby, or as to the validity of this
Thirty-Ninth Supplemental Indenture or of the bonds issued hereunder.

  Section 8. Whenever in this Thirty-Ninth Supplemental Indenture either of
the parties hereto is named or referred to, this shall, subject to the
provisions of Article XVII of the Original Mortgage, be deemed to include
the successors or assigns of such party, and all the covenants and
agreements in this Thirty-Ninth Supplemental Indenture contained by or on
behalf of the Company, or by or on behalf of the Trustee, shall, subject as
aforesaid, bind and inure to the benefit of the respective successors and
assigns of such parties, whether so expressed or not.

  Section 9. Nothing in this Thirty-Ninth Supplemental Indenture, expressed
or implied, is intended or shall be construed to confer upon, or to give to,
any person, co-partnership or corporation, other than the parties hereto and
the holders of the bonds and coupons outstanding under the Mortgage, any
right, remedy, or claim under or by reason of this Thirty-Ninth Supplemental
Indenture or any covenant, condition or stipulation hereof; and all the
covenants, conditions, stipulations, promises and agreements in this
Thirty-Ninth Supplemental Indenture contained by or on behalf of the Company
shall be for the sole and exclusive benefit of the parties hereto and of the
holders of the bonds and of the coupons outstanding under the Mortgage.

  Section 10. The Company covenants that all of the terms, provisions and
conditions of the Mortgage shall be applicable to the 2004 Bonds issued
hereunder, except as herein otherwise provided and except insofar as
the same may be inconsistent with the provisions of this Thirty-Ninth
Supplemental Indenture.

  Section 11. This Thirty-Ninth Supplemental Indenture is dated as of
February 1, 1994, although executed and delivered on the date of
the acknowledgment hereof by the Trustee; and shall be simultaneously
executed and delivered in several counterparts, and all such counterparts
executed and delivered, each as an original, shall constitute but one and
the same instrument.

  In Witness Whereof, Indianapolis Power & Light Company, party of the first
part, has caused its corporate name to be hereunto affixed and this
instrument to be signed and acknowledged by its President or a Vice-
President, and its corporate seal to be hereto affixed and attested by its
Secretary or an Assistant Secretary, for and in its behalf, and American
National Bank and Trust Company of Chicago, party of the second part, as
Trustee, has caused its corporate name to be hereunto affixed and this
instrument to be signed and acknowledged by one of its Vice-Presidents, and
its corporate seal to be hereto affixed and attested by one of its Assistant
Secretaries, all as of the day, month and year first above written.


                               Indianapolis Power & Light Company

(Seal)


Attest:                        By  /s/ Marcus E. Woods
                                   Marcus E. Woods,
                                   Vice-President.

/s/ Clark L. Snyder
      Clark L. Snyder,
    Assistant Secretary.

                                American National Bank and Trust
                                          Company of Chicago,

(Seal)


Attest:                         By  /s/ Ronald B. Bremen
                                    Ronald B. Bremen,
                                    Vice-President.
/s/ Robert M. Selangowski
    Robert M. Selangowski,
    Assistant Secretary.


State of Indiana     )
                     )  ss.:
County of Marion     )

  On this 28th day of January, in the year 1994, before me, a Notary Public
in and for the County and State aforesaid, personally came Marcus E. Woods,
Vice-President, and Clark L. Snyder, Assistant Secretary, of Indianapolis
Power & Light Company, one of the corporations described in and which
executed the foregoing instrument, to me personally known and known to
me personally to be such Vice-President, and Assistant Secretary,
respectively. Said Marcus E. Woods, and Clark L. Snyder being by me severally
duly sworn did depose and say that the said Marcus E. Woods resides in
Hendricks County, Indiana and the said Clark L. Snyder resides in Marion
County, Indiana; that said Marcus E. Woods is Vice-President and said
Clark L. Snyder is Assistant Secretary of said Indianapolis Power & Light
Company; that each of them knows the corporate seal of said corporation;
that the seal affixed to said instrument and bearing the name of said
corporation is such corporate seal; that is was so affixed by order of
the Board of Directors of said corporation; and that each of them signed his
name thereto by like order; and each of them acknowledged the execution of
said instrument on behalf of said corporation to be his free and voluntary
act and deed and the free and voluntary act and deed of said corporation, for
the uses and purposes therein set forth.

  In Witness Whereof, I have hereunto set my hand and affixed my official
seal this 28th day of January, 1994.



                                        /s/ Gloria K. Bryant
                                        Gloria K. Bryant
                                        Notary Public.

My Commission Expires:
  June 11, 1995

My County of Residence is:
  Marion


(Notarial Seal)

State of Illinois    )
                     )  ss.:
County of Cook       )


  On this 27th day of January, in the year 1994, before me, a Notary Public
in and for the County and State aforesaid, personally came Ronald B. Bremen,
Vice-President, and Robert M. Selangowski, Assistant Secretary, of Ameri-
can National Bank and Trust Company of Chicago, one of the corporations de-
scribed in and which executed the foregoing instrument, to me personally
known and known to me personally to be such Vice-President and Assistant
Secretary, respectively. Said Ronald B. Bremen, and Robert M. Selangowski,
being by me severally sworn did depose and say that the said Ronald
B. Bremen, resides in Glencoe, Illinois, and that the said Robert M.
Selangowski resides in Lansing, Illinois; that said Ronald B. Bremen is
Vice-President and said Robert M. Selangowski is Assistant Secretary of said
American National Bank and Trust Company of Chicago; that each of them knows
the corporate seal of said corporation; that the seal affixed to said
instrument and bearing the name of said corporation is such corporate seal;
that is was so affixed by authority of the Board of Directors of said
corporation; that each of them signed his name thereto by like authority; and
each of them acknowledged the execution of said instrument on behalf of said
corporation to be his free and voluntary act and deed and the free and
voluntary act and deed of said corporation, for the uses and purposes
therein set forth.

  In Witness Whereof, I have hereunto set my hand and affixed my official
seal this 27th day of January, 1994.


                                /s/ Bernadette G. Janairo
                                Bernadette G. Janairo
                                Notary Public.

(Notarial Seal)

My Commission Expires: May 22, 1994


My County of Residence is:
  Cook

                        This instrument was prepared by
                                Marcus E. Woods,
                                Attorney at Law



<PAGE>

                                                                  Exhibit 4.4.10

                      INDIANAPOLIS POWER & LIGHT COMPANY

                                      TO

                       AMERICAN NATIONAL BANK AND TRUST
                              COMPANY OF CHICAGO
                                                TRUSTEE

                                ---------------

                        FORTIETH SUPPLEMENTAL INDENTURE

                                ---------------

                         DATED AS OF FEBRUARY 1, 1994

                      ESTABLISHING FIRST MORTGAGE BONDS,

                            7.05% SERIES, DUE 2024


                               TABLE OF CONTENTS*

                                       OF

                      FORTIETH SUPPLEMENTAL INDENTURE

                                       OF

                       INDIANAPOLIS POWER & LIGHT COMPANY


                                                                PAGE
                                                                ----
Parties..................................................         1
Recitals.................................................         1
Section 1   Granting clauses.............................         3
              Part I   Electric Distributing Systems.....         3
              Part II  Steam and Hot Water Distributing
                         Systems.........................         4
              Part III Indeterminate Permits and
                         Franchises......................         4
              Part IV  Other Property....................         5
              General and after-acquired title...........         6
Section 2   Designation of thirty-eighth series of bonds
              and kind and denominations thereof.........         6
            Record date for payment of interest..........         7
            Designation of American National Bank and
              Trust Company of Chicago as paying
              agent......................................         7
            Bonds issued in book-entry form..............         7
            Exchange of bonds............................        10
            Transfer of bonds............................        10
            Series limited to $100,000,000...............        10
Section 3   Form of fully registered bond................        10
            Form of Trustee's certificate on bonds.......        12
Section 4   Temporary bonds..............................        15
Section 5   Annual Payments for Maintenance and
              Improvement Fund...........................        16
Section 6   Compliance with Section 47 of Original
              Mortgage with respect to dividend
              restrictions...............................        16
Section 7   Acceptance of trusts by Trustee and
              conditions of acceptance...................        16
Section 8   Successors and assigns.......................        16
Section 9   Limitation of rights hereunder...............        17

______________________________
  *Table of Contents is not part of the Fortieth Supplemental
Indenture and should not be considered such. It is included
herein only for purposes of convenient reference.

                                                                PAGE
                                                                ----
Section 10  Compliance with terms, provisions and
              conditions of Mortgage.....................        17
Section 11  Execution in counterparts....................        17
Testimonium..............................................        18
Signatures and Seals.....................................        18
Acknowledgements.........................................        19

                                       ii

  THIS FORTIETH SUPPLEMENTAL INDENTURE, dated as of February 1, 1994,
between Indianapolis Power & Light Company, a corporation of the
State of Indiana, hereinafter sometimes called the "Company," party of the
first part, and American National Bank and Trust Company of Chicago, a
national banking association, as Trustee, hereinafter sometimes called the
"Trustee," party of the second part;

  Whereas, the Company by a Mortgage and Deed of Trust (hereinafter
sometimes called the "Original Mortgage" when referred to as existing
prior to any supplement thereto or modification thereof, and the
"Mortgage" when referred to as now or heretofore supplemented and modified)
dated as of May 1, 1940, made to said American National Bank and Trust
Company of Chicago, as Trustee, to secure the payment of the bonds issued
from time to time under the Mortgage for the purposes of and subject to the
limitations specified in the Mortgage, and to secure the performance of the
covenants therein contained, conveyed to the Trustee thereunder upon certain
trusts, terms and conditions, and with and subject to certain provisos and
covenants therein contained, all and singular the property, rights and
franchises which the Company then owned or should thereafter acquire,
excepting the property expressly excepted by the terms of the Original
Mortgage or any indenture supplemental thereto, to which Mortgage reference
is hereby made for greater certainty; and

  Whereas, the Original Mortgage has been supplemented and modified by
supplemental indentures dated as of May 1, 1942, as of February 1, 1948, as
of April 1, 1949, two as of October 1, 1949, as of February 1, 1951, as of
March 1, 1953, as of June 1, 1956, as of March 1, 1958, as of October 1,
1960, as of August 1, 1964, as of April 1, 1966, as of May 1, 1967, as of
May 1, 1968, as of October 1, 1970, as of March 1, 1972, as of March 15,
1973, as of February 15, 1974, as of August 15, 1974, as of September 15,
1975, as of June 1, 1976, as of July 1, 1976, as of August 1, 1977, as of
September 1, 1978, two as of August 1, 1981, as of November 1, 1983, as of
November 1, 1984, as of December 1, 1984, as of September 1, 1985, as of
October 1, 1986, as of June 1, 1989, as of August 1, 1989, as of October 15,
1991, as of August 1, 1992, as of April 1, 1993, two as of October 1, 1993
and as of February 1, 1994.

  Whereas, Section 8 of the Original Mortgage provides, among other things,
that the form of each series of bonds (other than the initial issue of bonds)
issued thereunder shall be established by an
indenture supplemental thereto authorized by resolution of the Board of
Directors of the Company, and that the form of each series, as established
by the Board of Directors, shall specify the descriptive title of the bonds
and various other terms thereof, and may also contain other provisions as
the Board of Directors may, in its discretion, cause to be inserted therein
expressing or referring to the terms and conditions upon which such bonds
are to be issued and secured under the Original Mortgage or any indenture
supplemental thereto or in modification thereof; and

  Whereas, the Company now desires to provide for the establishment, execu-
tion, authentication and delivery under the Mortgage of bonds of a series to
be known as its "First Mortgage Bonds, 7.05% Series, due 2024" (the bonds of
said series being hereinafter sometimes referred to as the "2024 Bonds"), lim-
ited to the aggregate principal amount of One Hundred Million Dollars
($100,000,000); and

  Whereas, all things necessary to make the 2024 Bonds hereinafter described,
when duly executed by the Company and authenticated and delivered by the
Trustee, valid, binding and legal obligations of the Company, and to make this
Fortieth Supplemental Indenture a valid and binding agreement supplemental to
the Original Mortgage, have been done and performed; and

  Whereas, the execution and delivery by the Company of this Fortieth Supple-
mental Indenture, and the terms of the 2024 Bonds, have been duly authorized
by the Board of Directors of the Company by appropriate resolutions of said
Board; and

  Whereas, it is provided in and by the Original Mortgage that the Company
will execute and deliver such further instruments and do such further acts as
may be necessary or proper to carry out more effectually the purposes of the
Mortgage, and to make subject to the lien thereof any property thereafter ac-
quired and intended to be subject to the lien thereof; and

  Whereas, the Company has, since the date of execution and delivery of the
Original Mortgage, purchased and acquired property and desires by this Forti-
eth Supplemental Indenture specifically to convey to the Trustee such
property for the better protection and security of the bonds issued and to
be issued under the Original Mortgage, or any indenture supplemental thereto;

  Now, Therefore, This Indenture Witnesseth that, in consideration of the
premises and of the acceptance or purchase of the 2024 Bonds by the
registered owners thereof, and of the sum of one dollar, lawful money
of the United States of America, to the Company duly paid by the Trustee at
or before the execution and delivery of this Fortieth Supplemental Indenture,
the receipt whereof is hereby acknowledged, the Company and the Trustee,
respectively, have entered into, executed and delivered this Fortieth
Supplemental Indenture, for the uses and purposes hereinafter expressed,
that is to say:

  Section 1. The Company has granted, bargained, sold, released, conveyed, as-
signed, transferred, mortgaged, pledged, set over and confirmed, and by these
presents does grant, bargain, sell, release, convey, assign, transfer, mort-
gage, pledge, set over and confirm (subject, however, to permitted
encumbrances as defined in the Original Mortgage), unto said American
National Bank and Trust Company of Chicago, as Trustee, as herein provided,
and its successors in the trusts declared in the Original Mortgage and
herein, all of the property, real, personal and mixed, tangible and
intangible, of every kind, character and description which the Company has
acquired since the execution and delivery of the Original Mortgage and now
owns (except property, rights and assets of a character similar to that
excluded from the lien and operation of the Mortgage by the Granting Clauses
of the Original Mortgage, which property, rights and assets are excluded from
the lien and operation of the Mortgage only to the extent provided therein),
including, but without otherwise limiting the generality of the foregoing,
the following described property situated within the state of Indiana:

                                    PART I.

                         ELECTRIC DISTRIBUTING SYSTEMS.

  All electric distributing systems of the Company acquired by it after May 1,
1940, the date of the Original Mortgage, and located in the Counties of Bar-
tholomew, Boone, Daviess, Greene, Hamilton, Hancock, Hendricks, John-
son, Knox, Madison, Marion, Monroe, Morgan, Owen, Pike, Putnam, Shelby and
Sullivan, State of Indiana; and any additions to or extensions of any such
systems, together with the buildings, erections, structures, transmission
lines, power stations, sub-stations, engines, boilers, condensers, pumps,
turbines, machinery, tools, conduits, manholes, insulators, dynamos, motors,
lamps, cables, wires, poles, towers, cross-arms, piers, abutments,
switchboard equipment, meters, appliances, instruments, apparatus,
appurtenances, maps, records, ledgers, contracts, facilities and other
property or equipment used or provided for use in connection with the
construction, maintenance, repair and operation thereof; together also with
all of the rights, privileges, rights-of-way, franchises, licenses, grants,
liberties, immunities, ordinances, permits and easements of the Company in
respect of the construction, maintenance, repair and operation of said
systems.


                                    PART II.

                   STEAM AND HOT WATER DISTRIBUTING SYSTEMS.

  All the steam and hot water distributing systems acquired by the Company af-
ter May 1, 1940, the date of the Original Mortgage, and located in the City
of Indianapolis, Marion County, Indiana, and any additions to or extensions of
any such systems; together with the buildings, erections, structures, boilers,
heaters, engines, tanks, pipe lines, mains, connections, service pipes,
meters, tools, instruments, appliances, apparatus, facilities, machinery and
other property and equipment used or provided for use in the construction,
maintenance, repair and operation thereof; and together also with all of the
rights, privileges, rights-of-way, franchises, licenses, grants, liberties,
immunities, ordinances, permits and easements of the Company in respect of
the construction, maintenance, repair and operation of said systems.

                                   PART III.

                     INDETERMINATE PERMITS AND FRANCHISES.

  All indeterminate permits, franchises, ordinances, licenses, and other
authorizations by or from any state, county, municipality, or other
governmental authority, acquired by the Company after May 1, 1940, the
date of the Original Mortgage, including particularly, but not limited to,
any indeterminate permits under the Public Service Commission Act of the
State of Indiana, and all Acts amendatory thereof and supplemental thereto,
and all right, title and interest therein now owned by the Company, and all
renewals, extensions and modifications of said indeterminate permits,
franchises, ordinances, licenses, and other authorizations, and of the
indeterminate permits, franchises, ordinances, licenses, and other
authorizations referred to in Part VII of the Granting Clauses of the
Original Mortgage.

                                    PART IV.

                                OTHER PROPERTY.

  All other property, whether real, personal or mixed (except any in the Mort-
gage expressly excepted), now owned by the Company and wheresoever situated,
including (without in anywise limiting or impairing by the enumeration of the
same the scope and intent of the foregoing or of any general description con-
tained in the Mortgages) all lands, flowage rights, water rights, flumes,
raceways, dams, rights-of-way and roads; all plants for the generation of
electricity by water, steam and/or other power, power houses, telephone
systems, water systems, steam heat and power plants, hot water plants,
sub-stations, transmission lines, distribution systems, bridges, culverts and
tracks; all offices, buildings and structures and the equipment thereof; all
machinery, engines, boilers, dynamos, machines, regulators, meters,
transformers, generators and motors; all appliances whether electrical, gas
or mechanical, conduits, cables and lines; all pipes whether for water, steam
heat and power, or other purposes; all mains and pipes, service pipes,
fittings, valves and connections, poles, wires, tools, implements, apparatus,
furniture and chattels; all municipal franchises, indeterminate permits, and
other permits; all lines for the transportation, transmission and/or
distribution of electric current, steam heat and power or water for any
purpose, including towers, poles, wires, cables, pipes, conduits and all
apparatus for use in connection therewith; all real estate, lands, leases,
leaseholds; all contracts, whether heat, light, power, water or street
lighting contracts; all easements, servitudes, licenses, permits, rights,
powers, franchises, privileges, rights-of-way and other rights in or
relating to real estate or the occupancy of the same and (except as here-
inafter or in the Mortgage expressly excepted) all the right, title and
interest of the Company in and to all other property of any kind or nature
appertaining to and/or used and/or occupied and/or enjoyed in connection
with any property hereinbefore described or referred to;

  Together with all and singular the tenements, hereditaments and appurte-
nances belonging or in anywise appertaining to the aforesaid property or any
part thereof, with the reversion and reversions, remainder and remainders and
(subject to the provisions of Section 64 of the Original Mortgage), the
tools, rent, revenues, issues, earnings, income, product and profits thereof,
and all the estate, right, title and interest and claim whatsoever, at law as
well as in equity, which the Company now has or may hereafter acquire in and
to the aforesaid property, indeterminate permits, franchises, ordinances,
licenses and other authorizations and every part and parcel thereof.

  Section 2. There shall be and is hereby established a series of bonds, lim-
ited in aggregate principal amount to One Hundred Million Dollars
($100,000,000) to be issued under and secured by the Mortgage, to be desig-
nated "7.05% Series, due 2024", each of which shall also bear the descriptive
title "First Mortgage Bonds"; said bonds shall mature on February 1, 2024,
and shall be issued only as fully registered bonds without coupons in the
denomination of one thousand dollars and any larger denomination which is a
multiple of one thousand dollars; they shall bear interest from the
beginning of the current interest period during which each bond is dated,
at the rate per annum designated in the title thereof, payable semi-annually,
on February 1 and August 1 of each year; and the principal of, premium, if
any, and interest on each said bond shall be payable in lawful money of the
United States of America at the office or agency of the Company in the City
of Chicago, Illinois. The person in whose name any such bond is registered at
the close of business on any record date (as hereinafter defined) with
respect to any interest payment date shall be entitled to receive the
interest payable on such interest payment date, except if and to the extent
the Company shall default in the payment of the interest due on such interest
payment date, in which case such defaulted interest shall be paid to the
person in whose name such bond is registered on the date of payment of such
defaulted interest or on a subsequent record date for such payment if one
shall have been established as hereinafter provided. A subsequent record
date with respect to payment of interest in default may be established by or
in behalf of the Company by notice mailed to the holders of the 2024 Bonds
not less than ten (10) days preceding such record date, which record date
shall not be more than thirty (30) days prior to the subsequent interest
payment date. The term "record date" as used in this Section with respect to
any regular interest payment date shall mean the tenth day next preceding
such interest payment date, or, if such tenth day shall be a legal holiday
or a day on which banking institutions in the City of Chicago, Illinois, are
authorized by law to close, the day next succeeding such tenth day which
shall not be a legal holiday or a day on which such institutions are
authorized to close.

  American National Bank and Trust Company of Chicago is hereby designated
and appointed the office and agency of the Company for the payment of the
principal of, premium, if any, and interest on the 2024 Bonds and
for the registration, transfer and exchange of such bonds as hereinafter
provided; all reference herein to the office or agency of the Company for
the payment of the principal of, premium, if any, and interest on the 2024
Bonds, or the registration, transfer or exchange thereof, being to American
National Bank and Trust Company of Chicago. In the event of the resignation
or inability to act of American National Bank and Trust Company of Chicago,
then a successor agent for all such purposes in the City of Chicago,
Illinois, shall be appointed by the Board of Directors of the Company.

  The 2024 Bonds shall be dated as of the date of authentication thereof, ex-
cept as otherwise provided in Section 10 of the Original Mortgage.

  The 2024 Bonds shall initially be issued and held in book-entry form on the
books of the central depository system, The Depository Trust Company, its suc-
cessors, or any successor central depository system appointed by the Company
from time to time (the "Clearing Agency"). The Company and the Trustee may,
in connection herewith, do or perform or cause to be done or performed any
acts or things not adverse to the rights of the holders of the 2024 Bonds,
as are necessary or appropriate to accomplish or recognize such
book-entry form 2024 Bonds.

  So long as the 2024 Bonds remain and are held in book-entry form on the
books of a Clearing Agency, then (a) any such 2024 Bond may be registered
upon the books kept by the Trustee in the name of such Clearing Agency, or
any nominee thereof, including Cede & Co., as nominee of The Depository
Trust Company; (b) the Clearing Agency in whose names such 2024 Bond is so
registered shall be, and the Company and the Trustee may deem and treat such
Clearing Agency as, the absolute owner and holder of such 2024 Bond for all
purposes of the Indenture, including, without limitation, the receiving of
payment of the principal of, premium, if any, and interest on such 2024
Bond, the receiving of notice and giving of consent; (c) neither the Company
nor the Trustee shall have any responsibility or obligation hereunder to any
direct or indirect participant, within the meaning of Section 17A of the
Securities Exchange Act of 1934, as amended, of such Clearing Agency, or any
person on behalf of which, or otherwise in respect of which, any such
participant holds any interest in any 2024 Bond, including, without
limitation, any responsibility or obligation hereunder to maintain accurate
records of any beneficial interests in any 2024 Bond or any responsibility
or obligation hereunder with respect to the receiving by such participants
or the beneficial owners of payment of principal, premium, if any, or
interest on any 2024 Bonds, the receiving by such participants or the
beneficial owners of notice or the giving of consent by such participants or
the beneficial owners; and (d) the Clearing Agency is not required to present
any 2024 Bond called for partial redemption prior to receiving payment so
long as the Trustee and the Clearing Agency have agreed to the method for
noting such partial redemption.

  If (a) the Company receives notice from the Clearing Agency which is cur-
rently the registered owner of the 2024 Bonds to the effect that such
Clearing Agency is unable or unwilling to discharge its responsibility as a
Clearing Agency for the 2024 Bonds or (b) the Company elects to discontinue
its use of such Clearing Agency as a Clearing Agency for the 2024 Bonds, then
the Company and Trustee each shall do or perform or cause to be done or
performed all acts or things, not adverse to the rights of the holders of
the 2024 Bonds, as are necessary or appropriate to discontinue use of such
Clearing Agency as a Clearing Agency for the 2024 Bonds and to transfer the
ownership of each of the 2024 Bonds to such person or persons, including any
other Clearing Agency, as the holder of the 2024 Bonds may direct in
accordance with the Indenture. Any expenses of such discontinuance and
transfer, including expenses of printing new certificates to evidence the
2024 Bonds, shall be paid by the Company.

  So long as the 2024 Bonds remain and are held in book-entry form on the
books of a Clearing Agency, the Trustee shall be entitled to request and rely
upon a certificate or other written representation from the Clearing Agency
or any participant or indirect participant with respect to the identity of
any beneficial owners of the 2024 Bonds as of a record date selected by the
Trustee. For purposes of determining whether the consent, advice, direction
or demand of a Bondholder has been obtained, the Trustee shall be entitled to
treat the beneficial owners of the 2024 Bonds as the Bondholders and any
consent, request, direction, approval, objection or other instrument of such
beneficial owner may be obtained in the same fashion described in the
Indenture.

  Upon the notice and in the manner and with the effect provided in the Mort-
gage and in this Section 2, the 2024 Bonds shall be redeemable prior to the
maturity thereof, as a whole at any time or in part from time to time, at the
option of the Company, at the principal amount thereof and accrued interest to
the date of redemption, and at the redemption prices set forth under the head-
ing "Redemption Price" in the form of 2024 Bonds hereinafter recited, if re-
deemed otherwise than in the manner provided in the next paragraph, provided,
however, that none of the 2024 Bonds may be redeemed prior to February 1,
2004.

  Upon the notice and in the manner and with the effect provided in the Mort-
gage and in this Section 2, the 2024 Bonds shall be redeemable by the Company
prior to the maturity thereof out of monies deposited with the Trustee repre-
senting the proceeds of mortgaged and pledged property taken by the exercise
of the power of eminent domain or otherwise as provided in paragraph B of Sec-
tion 69 of the Mortgage, at the principal amount of the 2024 Bonds as to be
redeemed and accrued interest to the date of redemption.

  The notice required for the redemption of the 2024 Bonds shall be as pro-
vided in Section 59 of the Mortgage.

  At the option of the holder, any 2024 Bond, upon surrender thereof at said
office or agency of the Company together with a written instrument of
transfer in form approved by the Company duly executed by the holder or by
his duly authorized attorney, shall be exchangeable for a like aggregate
principal amount of fully registered bonds of the same series of other
authorized denominations.

  The 2024 Bonds shall be transferable on the books of the Company at said of-
fice or agency of the Company in the City of Chicago, Illinois, by the regis-
tered holder thereof, in person or by his duly authorized attorney, upon sur-
render thereof for cancellation.

  The Company shall not be required to make transfers or exchanges of any of
the 2024 Bonds for a period of ten (10) days next preceding any interest
payment date of said bonds.

  No charge shall be made upon any transfer or exchange of any of the 2024
Bonds other than for any tax or taxes or other governmental charge required
to be paid by the Company.

  The 2024 Bonds shall be limited to an aggregate principal amount of One Hun-
dred Million Dollars ($100,000,000) and shall be issued under the provisions
of Article VI of the Original Mortgage.

  Section 3. The 2024 Bonds, and the Trustee's Certificate to be endorsed
thereon, shall be in the following forms, respectively:

                            [form of face of bond]

                      INDIANAPOLIS POWER & LIGHT COMPANY

                  First Mortgage Bond, 7.05% Series, Due 2024
                             Due February 1, 2024
No.......                                                $......

  Indianapolis Power & Light Company, a corporation of the State of Indiana
(hereinafter called the Company), for value received, hereby promises to pay
to           or registered assigns, on February 1, 2024, at the office or
agency of the Company in the City of Chicago, Illinois, Dollars in
lawful money of the United States of America, and to pay to the registered
owner hereof interest thereon from the first day of February or the first day
of August next preceding the date of this bond, at the rate of 7.05 per
centum per annum in like lawful money, at said office or agency on February
1 and August 1 in each year, until the Company's obligation with respect to
the payment of such principal shall have been discharged. The interest
payable hereunder on February 1 or August 1 will, subject to the exception
provided in Section 2 of the Fortieth Supplemental Indenture hereinafter
mentioned, be paid to the person in whose name this bond is registered
at the close of business on the record date, which shall be the tenth day
next preceding such interest payment date or, if such tenth day shall be a
legal holiday or a day on which banking institutions in the City of Chicago,
Illinois, are authorized by law to close, the day next succeeding such tenth
day which shall not be a legal holiday or a day on which such institutions
are authorized to close.

  REFERENCE IS MADE TO THE FURTHER PROVISIONS OF THIS BOND SET FORTH ON THE
REVERSE HEREOF. SUCH FURTHER PROVISIONS SHALL, FOR ALL PURPOSES, HAVE THE
SAME EFFECT AS THOUGH FULLY SET FORTH IN THIS PLACE.

  This bond shall not become obligatory until American National Bank and Trust
Company of Chicago, the Trustee under the Mortgage, or its successor thereun-
der, shall have signed the form of certificate endorsed hereon.

  In Witness Whereof, Indianapolis Power & Light Company has caused this bond
to be signed in its name by its President or one of its Vice-Presidents, by
his signature or a facsimile thereof, and a facsimile of its corporate seal
to be imprinted hereon, attested by its Secretary or one of its Assistant
Secretaries, by his signature or a facsimile thereof.


                             Indianapolis Power & Light Company


Dated.....................   By......................................
                                          President.

Attest:

By......................................
Secretary.

                    [form of trustee's certificate on bonds]

                             Trustee's Certificate

  This bond is one of the bonds, of the series herein designated, provided for
in the within-mentioned Mortgage and Fortieth Supplemental Indenture.


                                American National Bank and Trust
                                  Company of Chicago, Trustee



                                By......................................
                                          Authorized Signature

                        [form of reverse side of bond]

                      INDIANAPOLIS POWER & LIGHT COMPANY

                  First Mortgage Bond, 7.05% Series, Due 2024
                             Due February 1, 2024

  This bond is one of an issue of bonds of the Company, issuable in series,
and is one of a series known as its First Mortgage Bonds, 7.05% Series, due
2024 (herein sometimes called the "2024 Bonds") limited in aggregate principal
amount to One Hundred Million Dollars ($100,000,000) and established by a For-
tieth Supplemental Indenture, dated as of February 1, 1994, all bonds of all
series issued and to be issued under and equally secured (except insofar as
any sinking or other fund, established in accordance with the provisions of
the Mortgage hereinafter mentioned, may afford additional security for the
bonds of any particular series) by a Mortgage and Deed of Trust, dated as of
May 1, 1940, executed by the Company to American National Bank and Trust Com-
pany of Chicago, as Trustee (which Mortgage and Deed of Trust as supplemented
and modified by all supplemental indentures thereto is hereinafter referred to
as the "Mortgage"), to which Mortgage reference is made for a description of
the property mortgaged and pledged, the nature and extent of the security,
the rights of the bearers or registered owners of the bonds in respect of
such security, the duties and immunities of the Trustee and the terms and
conditions Upon which the bonds are secured.

  With the consent of the Company and to the extent permitted by and as pro-
vided in the Mortgage, the rights and obligations of the Company and/or of the
holders of the bonds and/or coupons and/or the terms and provisions of the
Mortgage and/or any instruments supplemental thereto may be modified or al-
tered by affirmative vote of the holders of at least sixty-six and two-thirds
per centum (66 2/3%) in principal amount of the bonds affected by such modifi-
cation or alteration then outstanding under the Mortgage (excluding bonds dis-
qualified from voting by reason of the Company's interest therein as provided
in the Mortgage); provided that no such modification or alteration shall per-
mit the extension of the maturity of the principal of this bond or the reduc-
tion in the rate of interest hereon or any other modification in the terms
of payment of such principal or interest without the consent of the holder
hereof. The principal hereof may be declared or may become due and payable
prior to the stated date of maturity hereof, on the conditions, in the manner
and at the time set forth in the Mortgage, upon the occurrence of a completed
default as in the Mortgage provided.

  The 2024 Bonds are issuable only in fully registered form without coupons in
the denomination of one thousand dollars and any larger denomination which is a
multiple of one thousand dollars. In the manner and upon payment of the
charges hereinafter mentioned, the 2024 Bonds, upon surrender thereof at the
office or agency of the Company in the City of Chicago, Illinois, together
with a written instrument of transfer in form approved by the Company
duly executed by the registered holder or by his duly authorized attorney,
are exchangeable for a like aggregate principal amount of fully registered
bonds of the same series of other authorized denominations.

  This bond is transferable as prescribed in the Mortgage by the registered
owner hereof in person, or by his duly authorized attorney, at the office or
agency of the Company in the City of Chicago, Illinois, upon surrender and
cancellation of this bond and upon presentation of a written instrument of
transfer, duly executed and upon payment of the charges hereinafter
mentioned, and, thereupon, a new fully registered bond of the same series
for a like principal amount will be issued to the transferee in exchange
herefor as provided in the Mortgage. The Company and the Trustee may deem
and treat the person in whose name this bond is registered as the absolute
owner hereof for the purpose of receiving payment and for all other purposes.

  No charge shall be made upon any transfer or exchange of any of the 2024
Bonds other than for any tax or taxes or other governmental charge required to
be paid by the Company.

  The Company shall not be required to make transfers or exchanges of any of
the 2024 Bonds for a period of ten (10) days next preceding any interest pay-
ment date of said bonds.

  The 2024 Bonds are subject to redemption prior to the maturity thereof, as
a whole at any time or in part from time to time, at the option of the
Company, at the redemption prices set forth below under the heading "Redemp-
tion Price" plus accrued interest to the date of redemption if redeemed other-
wise than in the manner provided in the next paragraph, provided, however,
that none of the 2024 Bonds may be redeemed prior to February 1, 2004.


   IF REDEEMED
DURING THE TWELVE
 MONTHS' PERIOD
 ENDING WITH THE
THIRTY-FIRST DAY
OF JANUARY OF THE               REDEMPTION
   YEAR STATED                  PRICE
- -------------------             ----------
   2005.........                103.31%
   2006.........                102.98%
   2007.........                102.65%
   2008.........                102.32%
   2009.........                101.99%


   IF REDEEMED
DURING THE TWELVE
 MONTHS' PERIOD
 ENDING WITH THE
THIRTY-FIRST DAY
OF JANUARY OF THE               REDEMPTION
   YEAR STATED                  PRICE
- -------------------             ----------
   2010.........                101.66%
   2011.........                101.32%
   2012.........                100.99%
   2013.........                100.66%
   2014.........                100.33%

and 100% if redeemed after January 31, 2014.

  Upon the notice and in the manner and with the effect provided in the
Mortgage and in this Section 2, the 2024 Bonds shall be redeemable by the
Company prior to the maturity thereof out of monies deposited with the
Trustee representing the proceeds of mortgaged and pledged property taken by
the exercise of the power of eminent domain or otherwise as provided in
paragraph B of Section 69 of the Mortgage, at the principal amount of the
2024 Bonds as to be redeemed and accrued interest to the date of redemption.

  No recourse shall be had for the payment of the principal of or interest on
this bond against any incorporator or any past, present or future subscriber
to the capital stock, stockholder, officer or director of the Company or of
any predecessor or successor corporation, as such, either directly or through
the Company or any predecessor or successor corporation, under any rule of
law, statute or constitution or by the enforcement of any assessment or other-
wise, all such liability of incorporators, subscribers, stockholders, officers
and directors, as such, being waived and released by the terms of the Mort-
gage.

  Section 4. Until the 2024 Bonds in definitive form are ready for delivery,
the Company may execute, and upon its request in writing the Trustee shall
authenticate and deliver, in lieu thereof, fully registered 2024 Bonds in tem-
porary form, as provided in Section 15 of the Original Mortgage. Such bonds
may, in lieu of the statement of the specific redemption prices required to be
set forth in such bonds in definitive form, include a reference to this Forti-
eth Supplemental Indenture for a statement of such redemption prices.

  Section 5. The covenant of the Company to make annual payments to the
Trustee for a Maintenance and Improvement Fund as contained in Section 41 of
the Original Mortgage and in the first twenty-four Supplemental Indentures to
the Original Mortgage creating the several series of First Mortgage Bonds
presently outstanding under such Supplemental Indentures shall not apply to,
or be for the benefit of, the 2024 Bonds, and the Company reserves the
right, without any consent of, or other action by, the holders of the 2024
Bonds, to amend, modify or delete the provisions of the Mortgage relating to
such Maintenance and Improvement Fund, and by acceptance of the 2024 Bonds,
the holders thereof waive any right or privilege so to consent or take any
other action with respect thereto.

  Section 6. The Company covenants that, so long as any of the 2024 Bonds
shall remain outstanding, it will comply with all of the provisions of
Section 47 of the Original Mortgage, including the provisions with
respect to limitations on dividends and distributions and the purchase and
redemption of stock.

  Section 7. The Trustee hereby accepts the trusts herein declared, provided
and created and agrees to perform the same upon the terms and conditions herein
and in the Mortgage set forth and upon the following terms and conditions:

  The recitals contained herein and in the bonds shall be taken as the state-
ments of the Company, and the Trustee assumes no responsibility for the cor-
rectness of the same. The Trustee makes no representations as to the validity
or adequacy of the security afforded hereby, or as to the validity of this
Fortieth Supplemental Indenture or of the bonds issued hereunder.

  Section 8. Whenever in this Fortieth Supplemental Indenture either of the
parties hereto is named or referred to, this shall, subject to the provisions
of Article XVII of the Original Mortgage, be deemed to include the successors
or assigns of such party, and all the covenants and agreements in this
Fortieth Supplemental Indenture contained by or on behalf of the Company, or
by or on behalf of the Trustee, shall, subject as aforesaid, bind and inure
to the benefit of the respective successors and assigns of such parties,
whether so expressed or not.

  Section 9. Nothing in this Fortieth Supplemental Indenture, expressed or im-
plied, is intended or shall be construed to confer upon, or to give to, any
person, co-partnership or corporation, other than the parties hereto and the
holders of the bonds and coupons outstanding under the Mortgage, any right,
remedy, or claim under or by reason of this Fortieth Supplemental Indenture
or any covenant, condition or stipulation hereof; and all the covenants,
conditions, stipulations, promises and agreements in this Fortieth
Supplemental Indenture contained by or on behalf of the Company shall be
for the sole and exclusive benefit of the parties hereto and of the holders
of the bonds and of the coupons outstanding under the Mortgage.

  Section 10. The Company covenants that all of the terms, provisions and con-
ditions of the Mortgage shall be applicable to the 2024 Bonds issued hereunder,
except as herein otherwise provided and except insofar as the same may be in-
consistent with the provisions of this Fortieth Supplemental Indenture.

  Section 11. This Fortieth Supplemental Indenture is dated as of February 1,
1994, although executed and delivered on the date of the acknowledgment hereof
by the Trustee; and shall be simultaneously executed and delivered in several
counterparts, and all such counterparts executed and delivered, each as an
original, shall constitute but one and the same instrument.

  In Witness Whereof, Indianapolis Power & Light Company, party of the first
part, has caused its corporate name to be hereunto affixed and this
instrument to be signed and acknowledged by its President or a Vice-
President, and its corporate seal to be hereto affixed and attested by its
Secretary or an Assistant Secretary, for and in its behalf, and American
National Bank and Trust Company of Chicago, party of the second part, as
Trustee, has caused its corporate name to be hereunto affixed and this
instrument to be signed and acknowledged by one of its Vice-Presidents, and
its corporate seal to be hereto affixed and attested by one of its Assistant
Secretaries, all as of the day, month and year first above written.


                               Indianapolis Power & Light Company

(Seal)


Attest:                        By /s/ Marcus E. Woods
                                    Marcus E. Woods,
                                    Vice-President.
/s/ Clark L. Snyder
Clark L. Snyder,
Assistant Secretary.

                                American National Bank and Trust
                                          Company of Chicago,

(Seal)


Attest:                         By /s/ Ronald B. Bremen
                                    Ronald B. Bremen,
                                    Vice-President.
/s/ Robert M. Selangowski
Robert M. Selangowski,
Assistant Secretary.

State of Indiana     )
                     )  ss.:
County of Marion     )

  On this 28th day of January, in the year 1994, before me, a Notary Public in
and for the County and State aforesaid, personally came Marcus E. Woods, Vice-
President, and Clark L. Snyder, Assistant Secretary, of Indianapolis Power &
Light Company, one of the corporations described in and which executed the
foregoing instrument, to me personally known and known to me personally to be
such Vice-President, and Assistant Secretary, respectively. Said Marcus E.
Woods, and Clark L. Snyder being by me severally duly sworn did depose and say
that the said Marcus E. Woods resides in Hendricks County, Indiana and the
said Clark L. Snyder resides in Marion County, Indiana; that said Marcus E.
Woods is Vice-President and said Clark L. Snyder is Assistant Secretary of
said Indianapolis Power & Light Company; that each of them knows the
corporate seal of said corporation; that the seal affixed to said instrument
and bearing the name of said corporation is such corporate seal; that is was
so affixed by order of the Board of Directors of said corporation; and that
each of them signed his name thereto by like order; and each of them
acknowledged the execution of said instrument on behalf of said corporation
to be his free and voluntary act and deed and the free and voluntary act and
deed of said corporation, for the uses and purposes therein set forth.

  In Witness Whereof, I have hereunto set my hand and affixed my official
seal this 28th day of January, 1994.



                                        /s/ Gloria K. Bryant
                                            Gloria K. Bryant
                                            Notary Public.

My Commission Expires:
  June 11, 1995

My County of Residence is:
  Marion


(Notarial Seal)

State of Illinois    )
                     )  ss.:
County of Cook       )


  On this 27th day of January, in the year 1994, before me, a Notary Public in
and for the County and State aforesaid, personally came Ronald B. Bremen, Vice-
President, and Robert M. Selangowski, Assistant Secretary, of American
National Bank and Trust Company of Chicago, one of the corporations
described in and which executed the foregoing instrument, to me personally
known and known to me personally to be such Vice-President and Assistant
Secretary, respectively. Said Ronald B. Bremen, and Robert M. Selangowski,
being by me severally sworn did depose and say that the said Ronald B.
Bremen, resides in Glencoe, Illinois, and that the said Robert M. Selangowski
resides in Lansing, Illinois; that said Ronald B. Bremen is Vice-President
and said Robert M. Selangowski is Assistant Secretary of said American
National Bank and Trust Company of Chicago; that each of them knows the
corporate seal of said corporation; that the seal affixed to said instrument
and bearing the name of said corporation is such corporate seal; that is was
so affixed by authority of the Board of Directors of said corporation; that
each of them signed his name thereto by like authority; and each of them
acknowledged the execution of said instrument on behalf of said corporation
to be his free and voluntary act and deed and the free and voluntary act and
deed of said corporation, for the uses and purposes therein set forth.

  In Witness Whereof, I have hereunto set my hand and affixed my official
seal this 27th day of January, 1994.



                                        /s/ Bernadette G. Janairo
                                        Bernadette G. Janairo
                                        Notary Public.

(Notarial Seal)

My Commission Expires: May 22, 1994


My County of Residence is:
  Cook

                        This instrument was prepared by
                                Marcus E. Woods,
                                Attorney at Law

<PAGE>

                                                                  Exhibit 4.4.11

                       INDIANAPOLIS POWER & LIGHT COMPANY

                                       TO

                       AMERICAN NATIONAL BANK AND TRUST
                               COMPANY OF CHICAGO
                                                TRUSTEE



                        FORTY-FIRST SUPPLEMENTAL INDENTURE



                        Dated as of January 15, 1995


                        ESTABLISHING FIRST MORTGAGE BONDS,

                            6-5.8% Series, Due 2024







                        TABLE OF CONTENTS*

                                of

                FORTY-FIRST SUPPLEMENTAL INDENTURE

                                of

                INDIANAPOLIS POWER & LIGHT COMPANY

                                                                Page
Parties                                                          1
Recitals                                                         1
Section 1  Granting clauses                                      3

             Part I   Electric Distributing Systems              4
             Part II  Steam and Hot Water
                      Distributing Systems                       4
             Part III Indeterminate Permits and
                      Franchises                                 5
             Part IV  Other Property                             5
             General and after-acquired title                    6

Section 2  Designation of Thirty-Ninth series of
             bonds and kind and denominations thereof            6
           Designation of Company or American
           National Bank and Trust Company of
           Chicago as paying agent                               7
           Purpose of bonds                                      7
           Redemption of bonds                                   8
           Exchange of bonds                                    12
           Transfer of bonds                                    13
           Series limited to $40,000,000                        13

Section 3  Form of fully registered bond                        13
           Form of Trustee's certificate on bonds               16

Section 4  Temporary bonds                                      19

Section 5  Payment of principal and interest;
             credits                                            19

Section 6  Annual Payments for Maintenance and
             Improvement Fund                                   20

Section 7  Compliance with Section 47 of Original
             Mortgage with respect to dividend
             restrictions                                       20

Section 8  Acceptance of trusts by Trustee and
             conditions of acceptance                           20

     *Table of Contents is not part of the Forty-First
Supplemental Indenture and should not be considered such.
It is included herein only for purposes of convenient reference.


                                                               Page

Section 9   Successors and assigns                              20

Section 10  Limitation of rights hereunder                      21

Section 11  Compliance with terms, provisions and
                conditions of Mortgage                          21

Section 12  Execution in counterparts                           21

Testimonium                                                     22

Signatures and Seals                                            22

Acknowledgements                                                23

THIS FORTY-FIRST SUPPLEMENTAL INDENTURE, dated as of January 15,
1995, between Indianapolis Power & Light Company, a corporation of the
State of Indiana, hereinafter sometimes called the ''Company,'' party
of the first part, and American National Bank and Trust Company of
Chicago, a national banking association, as Trustee, hereinafter
sometimes called the ''Trustee,'' party of the second part;

     Whereas, the Company by a Mortgage and Deed of Trust (hereinafter
sometimes called the ''Original Mortgage'' when referred to as existing
prior to any supplement thereto or modification thereof, and the
''Mortgage'' when referred to as now or heretofore supplemented and
modified) dated as of May 1, 1940, made to said American National Bank
and Trust Company of Chicago, as Trustee, to secure the payment of the
bonds issued from time to time under the Mortgage for the purposes of
and subject to the limitations specified in the Mortgage, and to secure
the performance of the covenants therein contained, conveyed to the
Trustee thereunder upon certain trusts, terms and conditions, and with
and subject to certain provisos and covenants therein contained, all
and singular the property, rights and franchises which the Company then
owned or should thereafter acquire, excepting the property expressly
excepted by the terms of the Original Mortgage or any indenture
supplemental thereto, to which Mortgage reference is hereby made for
greater certainty; and

     Whereas, the Original Mortgage has been supplemented and modified by
supplemental indentures dated as of May 1, 1942, as of February 1,
1948, as of April 1, 1949, as of October 1, 1949, as of February 1,
1951, as of March 1, 1953, as of June 1, 1956, as of March 1, 1958, as
of October 1, 1960, as of August 1, 1964, as of April 1, 1966, as of
May 1, 1967, as of May 1, 1968, as of October 1, 1970, as of March 1,
1972, as of March 15, 1973, as of February 15, 1974, as of August 15,
1974, as of September 15, 1975, as of June 1, 1976, as of July 1, 1976,
as of August 1, 1977, as of September 1, 1978, as of August 1, 1981, as
of November 1, 1983, as of November 1, 1984, as of December 1, 1984, as
of September 1, 1985, as of October 1, 1986, as of June 1, 1989, as of
August 1, 1989, as of October 15, 1991, as of August 1, 1992, as of
April 1, 1993, as of October 1, 1993 and as of February 1, 1994.

     Whereas, Section 8 of the Original Mortgage provides, among other
things, that the form of each series of bonds (other than the initial
issue of bonds) issued thereunder shall be established by an indenture
supplemental thereto authorized by resolution of the Board of Directors
of the Company, and that the form of each series, as established by the
Board of Directors, shall specify the descriptive title of the bonds
and various other terms thereof, and may also contain such other
provisions as the Board of Directors may, in its discretion, cause to
be inserted therein expressing or referring to the terms and conditions
upon which such bonds are to be issued and secured under the Original
Mortgage or any indenture supplemental thereto or in modification
thereof; and

     Whereas, the Company has entered into a Loan Agreement, dated as of
January 15, 1995 (hereinafter called the Loan Agreement'') with the
City of Petersburg, Indiana (the ''City''), in order to obtain funds
for the refunding of the aggregate principal amount of Forty Million
Dollars ($40,000,000) of the City's Pollution Control Revenue Bonds,
Series 1984 (Indianapolis Power & Light Company Project) issued by the
City pursuant to related loan agreements to pay a portion of the cost
of acquisition, construction, installation and equipping by the Company
of certain pollution control facilities (the ''Facilities''), and
pursuant to the Loan Agreement the Company has agreed to issue a series
of its bonds under the Mortgage and this Forty-First Supplemental
Indenture in order to evidence and secure its indebtedness under the
Loan Agreement; and

     Whereas, the Company now desires to provide for the establishment,
execution, authentication and delivery under the Mortgage of bonds of a
series to be known as its ''First Mortgage Bonds, 6-5/8% Series, due
2024'' (the bonds of said series being hereinafter sometimes referred
to as the ''2024 PC Bond''), limited to the aggregate principal amount
of Forty Million Dollars ($40,000,000); and

     Whereas, all things necessary to make the 2024 PC Bond hereinafter
described, when duly executed by the Company and authenticated and
delivered by the Trustee, a valid, binding and legal obligation of the
Company, and to make this Forty-First Supplemental Indenture a valid
and binding agreement supplemental to the Original Mortgage, have been
done and performed; and

     Whereas, the execution and delivery by the Company of this
Forty-First Supplemental Indenture, and the terms of the 2024 PC Bond,
have been duly authorized by the Board of Directors of the Company by
appropriate resolutions of said Board; and

     Whereas, it is provided in and by the Original Mortgage that the
Company will execute and deliver such further instruments and do such
further acts as may be necessary or proper to carry out more
effectually the purposes of the Mortgage, and to make subject to the
lien thereof any property thereafter acquired and intended to be
subject to the lien thereof; and

     Whereas, the Company has, since the date of execution and delivery
of the Original Mortgage, purchased and acquired property and desires
by this Forty-First Supplemental Indenture specifically to convey to
the Trustee such property for the better protection and security of the
bonds issued and to be issued under the Original Mortgage, or any
indenture supplemental thereto;

     Now, Therefore, This Indenture Witnesseth that, in consideration of
the premises and of the acceptance or purchase of the 2024 PC Bond by
the registered owners thereof, and of the sum of one dollar, lawful
money of the United States of America, to the Company duly paid by the
Trustee at or before the execution and delivery of this Forty-First
Supplemental Indenture, the receipt whereof is hereby acknowledged, the
Company and the Trustee, respectively, have entered into, executed and
delivered this Forty-First Supplemental Indenture, for the uses and
purposes hereinafter expressed, that is to say:

     Section 1. The Company has granted, bargained, sold, released,
conveyed, assigned, transferred, mortgaged, pledged, set over and
confirmed, and by these presents does grant, bargain, sell, release,
convey, assign, transfer, mortgage, pledge, set over and confirm
(subject, however, to permitted encumbrances as defined in the Original
Mortgage), unto said American National Bank and Trust Company of
Chicago, as Trustee, as herein provided, and its successors in the
trusts declared in the Original Mortgage and herein, all of the
property, real, personal and mixed, tangible and intangible, of every
kind, character and description which the Company has acquired since
the execution and delivery of the Original Mortgage and now owns
(except property, rights and assets of a character similar to that
excluded from the lien and operation of the Mortgage by the Granting
Clauses of the Original Mortgage, which property, rights and assets are
excluded from the lien and operation of the Mortgage only to the extent
provided therein), including, but without otherwise limiting the
generality of the foregoing, the following described property situated
within the State of Indiana:


                         PART I.

             ELECTRIC DISTRIBUTING SYSTEMS.

     All electric distributing systems of the Company acquired by it
after May 1, 1940, the date of the Original Mortgage, and located in
the Counties of Bartholomew, Boone, Daviess, Greene, Hamilton, Hancock,
Hendricks, Johnson, Knox, Madison, Marion, Monroe, Morgan, Owen, Pike,
Putnam, Shelby and Sullivan, State of Indiana; and any additions to or
extensions of any such systems, together with the buildings, erections,
structures, transmission lines, power stations, sub-stations, engines,
boilers, condensers, pumps, turbines, machinery, tools, conduits,
manholes, insulators, dynamos, motors, lamps, cables, wires, poles,
towers, cross-arms, piers, abutments, switchboard equipment, meters,
appliances, instruments, apparatus, appurtenances, maps, records,
ledgers, contracts, facilities and other property or equipment used or
provided for use in connection with the construction, maintenance,
repair and operation thereof; together also with all of the rights,
privileges, rights-of-way, franchises, licenses, grants, liberties,
immunities, ordinances, permits and easements of the Company in respect
of the construction, maintenance, repair and operation of said systems.



                            PART II.

            STEAM AND HOT WATER DISTRIBUTING SYSTEMS.

     All the steam and hot water distributing systems acquired by the
Company after May 1, 1940, the date of the Original Mortgage, and
located in the City of Indianapolis, Marion County, Indiana, and any
additions to or extensions of any such systems; together with the
buildings, erections, structures, boilers, heaters, engines, tanks,
pipe lines, mains, connections, service pipes, meters, tools,
instruments, appliances, apparatus, facilities, machinery and other
property and equipment used or provided for use in the construction,
maintenance, repair and operation thereof; and together also with all
of the rights, privileges, rights-of-way, franchises, licenses, grants,
liberties, immunities, ordinances, permits and easements of the Company
in respect of the construction, maintenance, repair and operation of
said systems.


                               PART III.

               INDETERMINATE PERMITS AND FRANCHISES.

     All indeterminate permits, franchises, ordinances, licenses, and
other authorizations by or from any state, county, municipality, or
other governmental authority, acquired by the Company after May 1,
1940, the date of the Original Mortgage, including particularly, but
not limited to, any indeterminate permits under the Public Service
Commission Act of the State of Indiana, and all Acts amendatory thereof
and supplemental thereto, and all right, title and interest therein now
owned by the Company, and all renewals, extensions and modifications of
said indeterminate permits, franchises, ordinances, licenses, and other
authorizations, and of the indeterminate permits, franchises,
ordinances, licenses, and other authorizations referred to in Part VII
of the Granting Clauses of the Original Mortgage.


                             PART IV.

                          OTHER PROPERTY.

     All other property, whether real, personal or mixed (except any in
the Mortgage expressly excepted), now owned by the Company and
wheresoever situated, including (without in anywise limiting or
impairing by the enumeration of the same the scope and intent of the
foregoing or of any general description contained in the Mortgage) all
lands, flowage rights, water rights, flumes, raceways, dams,
rights-of-way and roads; all plants for the generation of electricity
by water, steam and/or other power, power houses, telephone systems,
water systems, steam heat and power plants, hot water plants,
sub-stations, transmission lines, distribution systems, bridges,
culverts and tracts; all offices, buildings and structures and the
equipment thereof; all machinery, engines, boilers, dynamos, machines,
regulators, meters, transformers, generators and motors; all appliances
whether electrical, gas or mechanical, conduits, cables and lines; all
pipes whether for water, steam heat and power, or other purposes; all
mains and pipes, service pipes, fittings, valves and connections,
poles, wires, tools, implements, apparatus, furniture and chattels; all
municipal franchises, indeterminate permits, and other permits; all
lines for the transportation, transmission and/or distribution of
electric current, steam heat and power or water for any purpose,
including towers, poles, wires, cables, pipes, conduits and all
apparatus for use in connection therewith; all real estate, lands,
leases, leaseholds; all contracts, whether heat, light, power, water or
street lighting contracts; all easements, servitudes, licenses,
permits, rights, powers, franchises, privileges, rights-of-way and
other rights in or relating to real estate or the occupancy of the same
and (except as hereinafter or in the Mortgage expressly excepted) all
the right, title and interest of the Company in and to all other
property of any kind or nature appertaining to and/or used and/or
occupied and/or enjoyed in connection with any property hereinbefore
described or referred to;

     Together with all and singular the tenements, hereditaments and
appurtenances belonging or in anywise appertaining to the aforesaid
property or any part thereof, with the reversion and reversions,
remainder and remainders and (subject to the provisions of Section 64
of the Original Mortgage), the tolls, rents, revenues, issues,
earnings, income, product and profits thereof, and all the estate,
right, title and interest and claim whatsoever, at law as well as in
equity, which the Company now has or may hereafter acquire in and to
the aforesaid property, indeterminate permits, franchises, ordinances,
licenses and other authorizations and every part and parcel thereof.

     Section 2. There shall be and is hereby established a series of
bonds, limited in aggregate principal amount to Forty Million Dollars
($40,000,000) to be issued under and secured by the Mortgage, to be
designated '' 6-5/8% Series, due 2024'', each of which shall also bear
the descriptive title ''First Mortgage Bonds''; said bonds shall mature
on December 1, 2024, and shall be issued only as fully registered bonds
without coupons in the denomination of five thousand dollars and any
larger denomination which is a whole multiple of five thousand dollars;
they shall bear interest from the beginning of the current interest
period during which each bond is dated, at the rate per annum
designated in the title thereof, payable semi-annually, on June 1 and
December 1 of each year (except that the first interest payment thereon
shall be made June 1, 1995 for the period from January 15, 1995 through
May 31, 1995); and the principal of, premium, if any, and interest on
said bond shall be payable in lawful money of the United States of
America at the office of the Company in the City of Indianapolis,
Indiana, or, if no such office is maintained, at American National Bank
and Trust Company of Chicago, which is hereby designated and appointed
the office and agency of the Company in the City of Chicago, Illinois,
for the payment of the principal of, premium, if any, and interest on
the 2024 PC Bond, if necessary, and for the registration, transfer and
exchange of such bond as hereinafter provided; all reference herein to
the office or agency of the Company in the City of Chicago, Illinois,
for the payment of the principal of, premium, if any, and interest on
the 2024 PC Bond, or the registration, transfer or exchange thereof,
being to American National Bank and Trust Company of Chicago. In event
of the resignation or inability to act of American National Bank and
Trust Company of Chicago, then a successor agent for all such purposes
in the City of Chicago, Illinois, shall be appointed by the Board of
Directors of the Company.

     The 2024 PC Bond shall be dated as of the date of authentication
thereof, except as otherwise provided in Section 10 of the Original
Mortgage.

     The 2024 PC Bond will be issued to evidence and secure a loan to the
Company by the City pursuant to the Loan Agreement of certain funds to
be acquired by the City through the issuance of City of Petersburg,
Indiana, Pollution Control Refunding Revenue Bonds, Series 1995A
(Indianapolis Power & Light Company Project) (the ''Series 1995A
Bonds''), authenticated and delivered under and pursuant to an
Indenture of Trust dated as of January 15, 1995 (hereinafter called the
''City Indenture''), by and between the City and Bank One Indianapolis,
NA, as Trustee (the ''City Trustee''). Pursuant to the City's pledge
and assignment of the Loan Agreement, as set forth in the City
Indenture, the 2024 PC Bond shall be issued to the City and assigned to
the City Trustee. All of the proceeds of the Series 1995A Bonds will be
used for the refunding of the aggregate principal amount of Forty
Million Dollars ($40,000,000) of the City's Pollution Control Revenue
Bonds, Series 1984 (Indianapolis Power & Light Company Project) issued
by the City pursuant to applicable loan agreements.

     Upon the notice and in the manner and with the effect provided in
this Section 2, the 2024 PC Bond shall be redeemable prior to the
maturity thereof under any one or more of the following circumstances:


     (a) In whole, at the option of the Company, if the Facilities or
Units 3 or 4 of the Petersburg Generating Station serviced by the
Facilities shall have been damaged or destroyed (i) to such extent
that they cannot be reasonably expected, in the opinion of the
Company, to be restored within a period of six (6) months to the
condition thereof immediately preceding such damage or destruction,
or (ii) to such extent that the Company, in its reasonable opinion,
is thereby prevented from carrying on its normal operations for a
period of six (6) months or more, or (iii) to such extent that the
restoration thereof would not be, taking into consideration the net
proceeds of any insurance payable as a result of such damage or
destruction, economic in the reasonable opinion of the Company.

     (b) In whole, at the option of the Company, if title to, or the
temporary use of, all or substantially all of the Facilities or
Units 3 or 4 of the Petersburg Generating Station serviced by the
Facilities, shall have been taken, under the exercise of the power
of eminent domain, or should any governmental body or agency
exercise any right which it may have to purchase or designate a
purchaser of the same, or should such property be sold to any
governmental body or agency so that the result of such taking or
takings is that (i) the Company, in its reasonable opinion, is
thereby prevented from carrying on its normal operations of either
the Facilities or such Units 3 or 4 for a period of six (6) months
or more, (ii) the restoration required as a result of the taking
cannot be reasonably expected, in the opinion of the Company, to be
completed in a period of six (6) months, or (iii) the restoration
thereof, taking into consideration the net proceeds from such
eminent domain award, would not be economic in the reasonable
opinion of the Company.

     (c) In whole, at the option of the Company, if, as a result of
any changes in the Constitution or law of the State of Indiana or
the Constitution or law of the United States of America or of
legislative or administrative action (whether state or federal) or
by final decree, judgment or order of any court or administrative
body (whether state or federal) entered after the contest thereof by
the Company in good faith or the decision of the Company not to
contest the same, the Loan Agreement shall, in the reasonable
opinion of counsel for the Company, have become void or unenforceable or
impossible of performance in accordance with the intent and purpose of the
parties as expressed in the Loan Agreement; or unreasonable burdens or
excessive liabilities shall, in the reasonable opinion of the Company, have
been imposed upon the City or the Company, with respect to the Facilities or
operation thereof, including without limitation federal, state or other ad
valorem, property, income or other taxes not being imposed on the
date of the Loan Agreement other than ad valorem taxes presently
levied upon privately owned property used for the same general
purpose as the Facilities.

     (d) In whole, at the option of the Company, if changes in the
economic availability of raw materials, operating supplies or
facilities necessary for the operation of the Facilities or the
operation of Units 3 or 4 of the Petersburg Generating Station serviced by
the Facilities shall have occurred or technological or other changes
shall have occurred which render the Facilities or said Units 3 or 4
uneconomic for use in the reasonable opinion of the Company.

     (e) In part, at the option of the Company, to the extent of net
proceeds received from any condemnation award, taking or sale as
stated herein, if title to, or the temporary use of any portion of
the Facilities shall have been taken under the exercise of the power
of eminent domain, or should any governmental body or agency
exercise any right it may have to purchase or designate a purchaser
of the same, or should such property be sold to any governmental
body or agency; provided the Company shall furnish to the City and
the City Trustee a certificate of an Independent Engineer (as
defined in the Loan Agreement) selected by the Company stating (i)
that the property forming the part of the Facilities that was taken
by such condemnation, taking or sale is not essential to the
character or significance of the Facilities, or (ii) that the
Facilities have been restored to a condition substantially
equivalent to their condition prior to the taking by such
condemnation, taking or sale proceedings, or (iii) that improvements
have been acquired which are suitable for the operation of the Facilities.

     (f) In whole, at any time on or after December 1, 2004, or in
part on any interest payment date on or after December 1, 2004, at
the option of the Company at a price equal to the principal amount
of the 2024 PC Bond so to be redeemed and accrued interest to the
date of redemption, together with a premium equal to a  percentage of
the principal amount thereof set forth under the heading ''Redemption
Premium'' in the form of the 2024 PC Bond hereinafter recited, so long as
the Company is not in default under the Loan Agreement or the 2024 PC Bond.

     (g) In the event all or substantially all of the mortgaged and
pledged property under the Mortgage, or all or substantially all
such property used in the business of generating, manufacturing,
transporting, transmitting, distributing or supplying electricity,
should be taken by exercise of the power of eminent domain, or
should any governmental body or agency exercise any right which it
may have to purchase or designate a purchaser of the same, or should
such property be sold to any governmental body or agency, the
Company shall be obligated to redeem the 2024 PC Bond outstanding as
promptly as possible in accordance with paragraph B of Section 69 of
the Original Mortgage.

     (h) In the event that the Company is notified by the City Trustee
that (i) an event of default under the City Indenture has occurred
and is continuing, and (ii) the City Trustee has declared the
principal of all the Series 1995A Bonds then outstanding immediately
due and payable pursuant to the City Indenture, the Company shall
call for redemption, on a redemption date selected by it not later
than thirty (30) days following the date on which such notice is
mailed, the 2024 PC Bond outstanding, and shall on such redemption
date redeem the same; provided, however, that such requirement of
redemption shall be deemed waived, if prior to the date fixed for
such redemption of the 2024 PC Bond (x) such event of default is
waived or cured as set forth in the City Indenture, or (y) there
shall have occurred any completed default (as defined in the
Mortgage) which affects any bond of any series outstanding under the
Mortgage and which completed default has not been cured and made
good prior to such redemption date, it being the intent of this
proviso that, in lieu of such right to redemption, the holder of the
2024 PC Bond shall be entitled only to such rights as are available
to the holders of bonds of any other series outstanding under the
Mortgage in the event of such completed default; and in case of any
subsequent occurrence or continuance of the events described in (i)
and (ii) of this Section 2(h), the Company shall have the same
obligation (subject to the same proviso) to redeem the 2024 PC Bond.


     (i) In the event the City Trustee notifies the Company and the
City that the interest payable on the Series 1995A Bonds held by
persons other than a ''substantial user'' or a ''related person'' as
those terms are used in Section 147(a)(2) of the Internal Revenue
Code of 1986, as amended, has been determined by a court of
competent jurisdiction or a formal ruling of the Internal Revenue
Service to be subject to federal income taxation by reason of a
breach by the Company of any covenant, agreement or representation
in the Loan Agreement, the Company shall call the 2024 PC Bond then
outstanding to be redeemed on the next succeeding interest payment
date within one hundred eighty (180) days after the date of such
notice; provided, however, that such requirement of redemption,
whether in whole or in part shall be deemed waived if, prior to the
date fixed for redemption of the 2024 PC Bond pursuant to this
Section 2(i), there shall have occurred any completed default (as
defined in the Mortgage) which affects any bond of any series
outstanding under the Mortgage and which completed default has not
been cured and made good prior to such redemption date, it being the
intent of this proviso that, in lieu of such right to redemption,
the holder of the 2024 PC Bond shall be entitled only to such rights
as are available to the holders of bonds of any other series
outstanding under the Mortgage in the event of such completed
default; but when any such completed default shall have been cured
and made good, if interest on the Series 1995A Bonds shall still be
taxable as described above, the Company shall have the same
obligation (subject to the same proviso) to redeem the 2024 PC Bond
on the next succeeding interest payment date within one hundred
eighty (180) days after the curing and making good of such completed
default; provided further, that the Company may call for redemption
such portion of the 2024 PC Bond, which in the written opinion of an
attorney or firm of attorneys of nationally recognized standing on
the subject of municipal bonds, would allow the City Trustee to
redeem the Series 1995A Bonds in part, which redemption would have
the result that the interest payable on the Series 1995A Bonds
remaining outstanding after such redemption in part would not be
subject to federal income taxation in the hands of persons other
than a ''substantial user'' or a ''related person'' as those terms
are used in Section 147(a)(2) of the Internal Revenue Code of 1986,
as amended.

     In case of redemption of 2024 PC Bond in whole for the purpose of
prepayment under the Loan Agreement pursuant to subsections (a), (b),
(c), (d), (f), (g), (h) or (i) above, the amounts payable upon
redemption of 2024 PC Bond shall be a sum sufficient, together with
other funds deposited with the City Trustee and available for such
purpose, to pay the principal of (and premium, in the case of
redemption pursuant to (f) above), and interest on the 2024 PC Bond
then outstanding and to pay all reasonable and necessary fees and
expenses of the City Trustee accrued and to accrue through final
payment of the 2024 PC Bond.

     In case of redemption in part pursuant to (e), (f) or (i) above,
the amount payable by the Company under this Forty-First Supplemental
Indenture, the Loan Agreement and the 2024 PC Bond shall be a sum
sufficient, together with other funds deposited with the Trustee and
available for such purpose, to pay the principal of (and premium in the
case of prepayment pursuant to (f) above) and interest on the 2024 PC
Bond so to be redeemed, which sum together with other funds deposited
with the City Trustee and available for such purpose shall be
sufficient to pay the principal of, premium, if any, and interest on
the Series 1995A Bonds and to pay all reasonable and necessary fees and
expenses of the City Trustee accrued and to accrue through such partial
prepayment.

     The 2024 PC Bond and the Series 1995A Bonds shall be redeemable at
any time within one hundred eighty (180) days following the event or
events described as giving rise to an option of the Company to redeem
them in subsections (a), (b), (c), (d) or (e) above.

     To exercise any of the options granted to redeem the 2024 PC Bond
in whole or in part or to comply with any obligations to redeem the 2024
PC Bond in whole or in part imposed in this Section 2, the Company
shall give written notice of the date of redemption to the City
Trustee, which date shall be not less than thirty (30) days nor more
than ninety (90) days from the date the notice is mailed.  No further
notice, by publication or otherwise, shall be required for redemption
of the 2024 PC Bond, and the requirements of Section 59 of the Mortgage
for notice by newspaper publication shall not apply to the 2024 PC Bond.

     At the option of the holder, the 2024 PC Bond, upon surrender
thereof at the office or agency of the Company in Chicago, Illinois,
together with a written instrument of transfer in form approved by the
Company duly executed by the holder or by his duly authorized attorney,
shall be exchangeable for a like aggregate principal amount of fully
registered bonds of the same series of other authorized denominations.


     The 2024 PC Bond will be nontransferable except to the City Trustee
and successors thereto, if any, and to the Company. To the extent that
it is transferable, it is transferable by the registered holder
thereof, in person or by attorney duly authorized in writing, on the
books of the Company at the office or agency of the Company in the City
of Chicago, Illinois, upon surrender thereof for cancellation at said
office and upon presentation of a written instrument of transfer duly
executed. Thereupon, the Company shall issue in the name of the
transferee, and the Trustee shall authenticate and deliver, a new
registered 2024 PC Bond or Bonds, in authorized denominations, of equal
aggregate principal amount. Any such transfer shall be subject to the
terms and conditions specified in the Mortgage and in this Forty-First
Supplemental Indenture.

     The Company shall not be required to transfer or exchange the 2024
PC Bond for a period of ten (10) days next preceding any interest
payment date of said bond.

     Except as set forth herein, no charge shall be made upon any
transfer or exchange of any of the 2024 PC Bond other than for any tax
or taxes or other governmental charge required to be paid by the Company.

     The 2024 PC Bond shall be limited to an aggregate principal amount
of Forty Million Dollars ($40,000,000) and shall be issued under the
provisions of Article VII of the Original Mortgage.

     Section 3. The 2024 PC Bond, and the Trustee's Certificate to be
endorsed thereon, shall be in the following forms, respectively:


[form of face of 2024 pc bond]

     This First Mortgage Bond, 6-5/8% Series, due 2024 (hereinafter
called the ''2024 PC Bond'') is not transferable except to a successor
trustee under the Indenture of Trust dated as of January 15, 1995,
between the City of Petersburg, Indiana and Bank One Indianapolis, N.A.,
Indiana, as the Trustee, or to Indianapolis Power & Light Company.


INDIANAPOLIS POWER & LIGHT COMPANY

First Mortgage Bond, 6-5/8% Series, Due 2024
Due December 1, 2024

No. 1                                       $40,000,000

     INDIANAPOLIS POWER & LIGHT COMPANY, a corporation of the State of
Indiana (hereinafter called the ''Company''), for value received,
hereby promises to pay to BankOne Indianapolis, N.A., Indiana, as the
Trustee (hereinafter called the ''City Trustee'') under the Indenture
of Trust between the City of Petersburg, Indiana (the ''City'') and the
City Trustee, dated as of January 15, 1995 (the ''City Indenture'') or
registered assigns, on December 1, 2024, at the office of the Company,
in the City of Indianapolis, State of Indiana, or if no such office is
maintained at the time by the Company, then at the office or agency of
the Company for such purpose in the City of Chicago, State of Illinois,
Forty Million Dollars ($40,000,000) in lawful money of the United
States of America, and to pay to the registered owner hereof interest
thereon from the first day of June or the first day of December next
preceding the date of this 2024 PC Bond (except that the first interest
payment hereunder shall be made June 1, 1995 for the period from
January 15, 1995 through May 31, 1995), at the rate of six and five-eighths
percent (6-5/8%) per annum in like lawful money at said office or agency, on
June 1 and December 1 in each year, until the Company's obligation with
respect to the payment of such principal shall have been discharged.
The interest payable hereunder on June 1 or December 1 will be paid to
the registered owner of this 2024 PC Bond at or before the close of
business on such dates, or if such date shall be a Saturday, Sunday,
holiday or a day on which banking institutions in the City of
Indianapolis or the city of any paying agents are authorized by law to
close, on or before the close of business on the next succeeding
business day on which such banking institutions are open for business.


REFERENCE IS MADE TO THE FURTHER PROVISIONS OF THIS 2024 PC BOND SET
FORTH ON THE REVERSE HEREOF. SUCH FURTHER PROVISIONS SHALL, FOR ALL
PURPOSES, HAVE THE SAME EFFECT AS THOUGH FULLY SET FORTH IN THIS PLACE.


     No recourse shall be had for the payment of the principal of or
interest on this 2024 PC Bond against any incorporator or any past,
present or future subscriber to the capital stock, stockholder, officer
or director of the Company or of any predecessor or successor
corporation, as such, either directly or through the Company or any
predecessor or successor corporation, under any rule of law, statute,
or constitution or by the enforcement of any assessment or otherwise,
all such liability of incorporators, subscribers, stockholders,
officers and directors, as such, being waived and released by the terms
of the Mortgage, as herein defined.

     This 2024 PC Bond shall not become obligatory until American
National Bank and Trust Company of Chicago, the Trustee under the
Mortgage, as herein defined, or its successor thereunder, shall have
signed the form of certificate endorsed hereon.

     In Witness Whereof, Indianapolis Power & Light Company has caused
this 2024 PC Bond to be signed in its name by its President or its
Treasurer, by his signature or a facsimile thereof, and its corporate
seal to be affixed hereon, attested by its Secretary or one of its
Assistant Secretaries, by his signature or a facsimile thereof.


                                Indianapolis Power & Light Company


Dated                           By
                                        Treasurer
Attest:

By
Secretary


[form of trustee's certificate on 2024 pc bond]

                        Trustee's Certificate

     This 2024 PC Bond is one of the bonds, of the series herein
designated, provided for in the within-mentioned Mortgage and
Forty-First Supplemental Indenture thereto.


                        American National Bank and Trust Company of
                                Chicago       Trustee

                        By
                                Authorized Signature


[form of reverse side of 2024 pc bond]

                INDIANAPOLIS POWER & LIGHT COMPANY

           First Mortgage Bond, 6-5/8% Series, due 2024
                Due January 1, 2024

     This 2024 PC Bond is one of an issue of bonds of the Company,
issuable in series, and is one of a series known as its First Mortgage
Bonds, 6-5/8% Series, due 2024 (herein called the ''2024 PC Bond'')
limited in aggregate principal amount to Forty Million Dollars
($40,000,000) and established by a Forty-First Supplemental Indenture
dated as of January 15, 1995, all bonds of all series issued and to be
issued under and equally secured (except insofar as any sinking or
other fund, established in accordance with the provisions of the
Mortgage hereinafter mentioned, may afford additional security for the
bonds of any particular series) by a Mortgage and Deed of Trust, dated
as of May 1, 1940, executed by the Company to American National Bank
and Trust Company of Chicago, as the Trustee (which Mortgage and Deed
of Trust as supplemented and modified by all supplemental indentures
thereto is hereinafter referred to as the ''Mortgage''), to which
Mortgage reference is made for a description of the property mortgaged
and pledged, the nature and extent of the security, the rights of the
bearers or registered owners of the bonds in respect of such security,
the duties and immunities of the Trustee and the terms and conditions
upon which the bonds are secured.

     This 2024 PC Bond evidences and secures a loan made by the City to
the Company, pursuant to a Loan Agreement, dated as of January 15,
1995, between the City and the Company (the ''Loan Agreement''). In
order to obtain funds for such loan, the City, contemporaneously with
the issue of this 2024 PC Bond, will issue Forty Million Dollars
($40,000,000) principal amount of its Pollution Control Refunding
Revenue Bonds, Series 1995A (Indianapolis Power & Light Company
Project) (the ''City Bonds'') under and pursuant to the City Indenture.
The City Bonds are payable from payments made by the Company of
principal of, premium, if any, and interest on this 2024 PC Bond and
from moneys in the Bond Fund created under the City Indenture. The
obligation of the Company to pay the principal of, premium, if any, and
interest on this 2024 PC Bond shall be discharged to the extent that
any moneys in said Bond Fund are available for payments on the City
Bonds and are directed by the Company to be applied thereto, all as
provided in the Forty-First Supplemental Indenture.

     This 2024 PC Bond is not subject to redemption prior to December 1,
2004, except as provided in Section 2 of the Forty-First Supplemental
Indenture, to which reference is made for full description of
redemption provisions.
<PAGE>

     This 2024 PC Bond is subject to redemption in whole at any time on
or after December 1, 2004, or in part on any interest payment date on
or after December 1, 2004, at the option of the Company, upon at least
thirty (30) days prior notice, all as provided in the Forty-First
Supplemental Indenture, at a price equal to the principal amount of the
2024 PC Bond so to be redeemed and accrued interest to the date of
redemption, together with a premium equal to a percentage of the
principal amount thereof set forth below under the heading ''Redemption
Premium'':

If Redeemed During the Twelve Months
Ending With the Thirtieth Day
Redemption
of November of the Year Stated                  Premium

2005                                            2.0%
2006                                            1.0%

and without premium if redeemed after November 30, 2006.

     With the consent of the Company and to the extent permitted by and
as provided in the Mortgage, the rights and obligations of the Company
and/or of the holders of the bonds and/or coupons and/or the terms and
provisions of the Mortgage and/or any instruments supplemental thereto
may be modified or altered by affirmative vote of the holders of at
least sixty-six and two-thirds per centum (662/3%) in principal amount
of the bonds affected by such modification or alteration then
outstanding under the Mortgage (excluding bonds disqualified from
voting by reason of the Company's interest therein as provided in the
Mortgage); provided that no such modification or alteration shall
permit the extension of the maturity of the principal of this 2024 PC
Bond or the reduction in the rate of interest hereon or any other
modification in the terms of payment of such principal or interest
without the consent of the holder hereof. The principal hereof may be
declared or may become due and payable prior to the stated date of
maturity hereof, on the conditions, in the manner and at the time set
forth in the Mortgage, upon the occurrence of a completed default as in
the Mortgage provided.

     No reference herein to the Mortgage, and no provision of this 2024
PC Bond or of the Mortgage, shall alter or impair the obligation of the
Company, which is absolute and unconditional, to pay, subject to the
provisions of the Forty-First Supplemental Indenture, the principal of,
and premium, if any, and interest on this 2024 PC Bond at the place, at
the respective times and at the rate and the manner herein prescribed.


     This 2024 PC Bond is issuable only in full registered form without
coupons in denominations of Five Thousand Dollars and any larger
denomination which is a whole multiple of Five Thousand Dollars.

     This 2024 PC Bond will be nontransferable except to the City Trustee
and successors thereto, if any, and to the Company. To the extent that
it is transferable, it is transferable by the registered holder
thereof, in person or by attorney duly authorized in writing, on the
books of the Company at the office or agency of the Company in the City
of Chicago, Illinois, upon surrender thereof for cancellation at said
office and upon presentation of a written instrument of transfer duly
executed. Thereupon, the Company shall issue in the name of the
transferee, and the Trustee shall authenticate and deliver, a new
registered 2024 PC Bond or Bonds, in authorized denominations, of equal
aggregate principal amount. Any such transfer shall be subject to the
terms and conditions specified in the Mortgage and in the Forty-First
Supplemental Indenture.

[end of 2024 pc bond form]

     Section 4. Until the 2024 PC Bond in definitive form is ready for
delivery, the Company may execute, and upon its request in writing the
Trustee shall authenticate and deliver, in lieu thereof, a fully
registered 2024 PC Bond in temporary form, as provided in Section 15 of
the Original Mortgage. Such bond may, in lieu of the statement of the
specific redemption prices required to be set forth in such bond in
definitive form, include a reference to this Forty-First Supplemental
Indenture for a statement of such redemption prices.

     Section 5. The Company covenants and agrees that it will duly and
punctually pay to the holder of the 2024 PC Bond the principal thereof,
premium, if any, and interest on said bond at the dates and place and
in the manner mentioned therein; provided, however, that:

     (a) The obligation of the Company to pay the principal of, and
premium, if any, and interest on the 2024 PC Bond shall be
discharged to the extent that any moneys in the Series 1995A Bond
Account within the Bond Fund created under and pursuant to the City
Indenture are available for the payment of the principal of, or
premium, if any, or interest on the Series 1995A Bonds and are
directed by the Company to be applied to the payment thereof in the
manner provided in the City Indenture on or prior to the dates on
which the Company is required to pay the principal of, or premium,
if any, or interest on the 2024 PC Bond.

     (b) Except as otherwise provided in this Section 5, the principal
amount of any Series 1995A Bond acquired by the Company and
delivered to the City Trustee, or acquired by the City Trustee and
cancelled, shall be credited against the obligation of the Company
to pay the principal of the 2024 PC Bond.

As the principal of, premium, if any, and interest on the 2024 PC Bond
is paid or deemed paid in full, and upon its receipt by the Company,
such bond shall be delivered to the Trustee for cancellation. The
Company shall promptly inform the Trustee of all payments made and
credits availed of with respect to its obligations on the 2024 PC Bond.
The Trustee shall not be required to recognize any payment made or
credit availed of with respect to any 2024 PC Bond unless it has
received (a) the bond for cancellation by it, or (b) a certificate
signed by a duly authorized officer of the City Trustee specifying the
amount of such payment or credit and the principal amount of the 2024
PC Bond with respect to which the payment or credit was applied. In the
absence of receipt by the Trustee of any 2024 PC Bond, any such
certificate shall be controlling and conclusive.

     Section 6. The covenant of the Company to make annual payments to
the Trustee for a Maintenance and Improvement Fund as contained in
Section 41 of the Original Mortgage and in the first twenty-four
Supplemental Indentures to the Original Mortgage creating the several
series of First Mortgage Bonds presently outstanding under such
Supplemental Indentures shall not apply to nor be for the benefit of
the 2024 PC Bond, and the Company reserves the right, without any
consent of, or other action by, the holder of the 2024 PC Bond, to
amend, modify or delete the provisions of the Mortgage relating to such
Maintenance and Improvement Fund and by acceptance of the 2024 PC Bond
the holder thereof waives any right or privilege so to consent or take
any other action with respect thereto.

     Section 7. The Company covenants that, so long as the 2024 PC Bond
shall remain outstanding, it will comply with all of the provisions of
Section 47 of the Original Mortgage, including the provisions with
respect to limitations on dividends and distributions and the purchase
and redemption of stock.

     Section 8. The Trustee hereby accepts the trusts herein declared,
provided and created and agrees to perform the same upon the terms and
conditions herein and in the Mortgage set forth and upon the following
terms and conditions:

     The recitals contained herein and in the bonds shall be taken as the
statements of the Company and the Trustee assumes no responsibility for
the correctness of the same. The Trustee makes no representations as to
the validity or adequacy of the security afforded hereby, or as to the
validity of this Forty-First Supplemental Indenture or of the 2024 PC
Bond issued hereunder.

     Section 9. Whenever in this Forty-First Supplemental Indenture
either of the parties hereto is named or referred to, this shall,
subject to the provisions of Article XVII of the Original Mortgage, be
deemed to include the successors or assigns of such party, and all the
covenants and agreements in this Forty-First Supplemental Indenture
contained by or on behalf of the Company, or by or on behalf of the
Trustee, shall, subject as aforesaid, bind and inure to the benefit of
the respective successors and assigns of such parties, whether so
expressed or not.

     Section 10. Nothing in this Forty-First Supplemental Indenture
expressed or implied, is intended or shall be construed to confer upon,
or to give to, any person, co-partnership or corporation, other than
the parties hereto and the holders of the bonds and coupons outstanding
under the Mortgage, any right, remedy, or claim under or by reason of
this Forty-First Supplemental Indenture or any covenant, condition or
stipulation hereof; and all the covenants, conditions, stipulations,
promises and agreements in this Forty-First Supplemental Indenture
contained by or on behalf of the Company shall be for the sole and
exclusive benefit of the parties hereto and of the holders of the bonds
and of the coupons outstanding under the Mortgage.

     Section 11. The Company covenants that all of the terms, provisions
and conditions of the Mortgage shall be applicable to the 2024 PC Bond
issued hereunder, except as herein otherwise provided and except
insofar as the same may be inconsistent with the provisions of this
Forty-First Supplemental Indenture.

     Section 12. This Forty-First Supplemental Indenture is dated as of
January 15, 1995, although executed and delivered on the date of the
acknowledgement hereof by the Trustee; and shall be simultaneously
executed and delivered in several counterparts, and all such
counterparts executed and delivered, each as an original, shall
constitute but one and the same instrument.
<PAGE>

     In Witness Whereof, Indianapolis Power & Light Company, party of the
first part, has caused its corporate name to be hereunto affixed and
this instrument to be signed and acknowledged by its President or a
Vice-President, and its corporate seal to be hereto affixed and
attested by its Secretary or an Assistant Secretary, for and in its
behalf, and American National Bank And Trust Company Of Chicago, party
of the second part, as Trustee, has caused its corporate name to be
hereunto affixed and this instrument to be signed and acknowledged by
one of its Vice-Presidents, and its corporate seal to be hereto affixed
and attested by one of its Assistant Secretaries, all as of the day,
month and year first above written.


Indianapolis Power & Light Company,



By /s/ Bryan G. Tabler
Bryan G. Tabler,
Senior Vice-President

Attest:


/s/ Clark L. Snyder
Clark L. Snyder,
Assistant Secretary

American National Bank And Trust Company of
Chicago



By /s/ Ronald B. Bremen
Ronald B. Bremen,
Vice-President

Attest:
(Seal)

/s/ Robert M. Selangowski
Robert M. Selangowski,
Assistant Secretary
<PAGE>

State of Indiana
County of Marion


     On this 2nd day of February, in the year 1995, before me, a Notary
Public in and for the County and State aforesaid, personally came Bryan
G. Tabler, Senior Vice-President, and Clark L. Snyder, Assistant
Secretary, of Indianapolis Power & Light Company, one of the
corporations described in and which executed the foregoing instrument,
to me personally known and known to me personally to be such Senior
Vice-President and Assistant Secretary, respectively. Said Bryan G.
Tabler and Clark L. Snyder being by me severally duly sworn did depose
and say that the said Bryan G. Tabler resides in Marion County, Indiana
and the said Clark L. Snyder resides in Marion County, Indiana; that
said Bryan G. Tabler is Senior Vice-President and said Clark L. Snyder
is Assistant Secretary of said Indianapolis Power & Light Company; that
each of them knows the corporate seal of said corporation; that the
seal affixed to said instrument and bearing the name of said
corporation is such corporate seal; that it was so affixed by order of
the Board of Directors of said corporation; and that each of them
signed his name thereto by like order; and each of them acknowledged
the execution of said instrument on behalf of said corporation to be
his free and voluntary act and deed and the free and voluntary act and
deed of said corporation, for the uses and purposes therein set forth.


     In Witness Whereof, I have hereunto set my hand and affixed my
official seal this 2nd day of February 1995.




/s/ Gloria K. Bryant
Gloria K. Bryant,
Notary Public

My Commission Expires:
     June 11, 1995

My County of Residence is:
     Marion

(Notarial Seal)
State of Illinois
County of Cook


<PAGE>

     On this 1st day of February, in the year 1995, before me, a Notary
Public in and for the County and State aforesaid, personally came Ronald B.
Bremen, Vice-President, and Robert M. Selangowski, Assistant Secretary, of
American National Bank and Trust Company of Chicago, one of the corporations
described in and which executed the foregoing instrument, to me personally
known and known to me personally to be such Senior Vice-President and
Assistant Secretary, respectively. Said Ronald B. Bremen and Robert M.
Selangowski, being by me severally sworn did depose and say that the said
Ronald B. Bremen resides in Glencoe, Illinois, and that the said Robert M.
Selangowski resides in Lansing, Illinois; that said Ronald B. Bremen is
Vice-President and said Robert M. Selangowski is Assistant Secretary of
said American National Bank and Trust Company of Chicago; that each of them
knows the corporate seal of said corporation; that the seal affixed to said
instrument and bearing the name of said corporation is such corporate seal;
that it was so affixed by authority of the Board of Directors of said
corporation; that each of them signed his name thereto by like authority;
and each of them acknowledged the execution of said instrument on behalf of
said corporation to be his free and voluntary act and deed and the free and
voluntary act and deed of said corporation, for the uses and purposes
therein set forth.

     In Witness Whereof, I have hereunto set my hand and affixed my
official seal this 1st day of February, 1995.





/s/ Bernadette G. Janairo
Bernadette G. Janairo
Notary Public

My Commission Expires:
     May 22, 1998

My County of Residence is:
     Cook

(Notarial Seal)

This instrument was prepared by
Bryan G. Tabler

<PAGE>

                                                                  Exhibit 4.4.12

             INDIANAPOLIS POWER & LIGHT COMPANY

                             TO

             AMERICAN NATIONAL BANK AND TRUST

                   COMPANY OF CHICAGO

                                      Trustee





            Forty-Second Supplemental Indenture





              Dated as of October 1, 1995


            ESTABLISHING FIRST MORTGAGE BONDS,

                 5.21% Series, Due 2023









                   TABLE OF CONTENTS*

                         of

         FORTY-SECOND SUPPLEMENTAL INDENTURE

                         of

         INDIANAPOLIS POWER & LIGHT COMPANY

                                                           Page
Parties                                                      1
Recitals                                                     1
Section 1   Granting clauses                                 4
              Part I   Electric Distributing Systems         5
              Part II  Steam and Hot Water Distributing
                         Systems                             5
              Part III Indeterminate Permits and Franchises  6
              Part IV  Other Property                        6
            General and after-acquired title                 6
Section 2   Designation of Fortieth series of bonds
              and kind and denominations thereof             7
            Designation of Company or American National
              Bank and Trust Company of Chicago as
              paying agent                                   8
            Purpose of bonds                                 8
            Redemption of bonds                              8
            Exchange of bonds                                9
            Transfer of bonds                                9
            Series limited to $40,000,000                    9
Section 3   Form of fully registered bond                   10
            Form of Trustee's certificate on bonds          12
Section 4   Temporary bonds                                 14
Section 5   Payments made hereunder; discharge of
              obligation; credits                           14
Section 6   Annual Payments for Maintenance and
              Improvement Fund                              15
Section 7   Compliance with Section 47 of Original
              Mortgage with respect to dividend
              restrictions                                  15
Section 8   Acceptance of trusts by Trustee and
              conditions of acceptance                      15

*Table of Contents is not part of the Forty-Second
Supplemental Indenture and should not be considered
such. It is included herein only for purposes of
convenient reference.


                                                          Page
Section 9   Successors and assigns                         16
Section 10  Limitation of rights hereunder                 16
Section 11  Compliance with terms, provisions and
              conditions of Mortgage                       16
Section 12  Execution in counterparts                      16
Testimonium                                                17
Signatures and Seals                                       17
Acknowledgements                                           18

THIS FORTY-SECOND SUPPLEMENTAL INDENTURE, dated as of October 1,
1995, between Indianapolis Power & Light Company, a corporation of the
State of Indiana, hereinafter sometimes called the ''Company,'' party
of the first part, and American National Bank and Trust Company of
Chicago, a national banking association, as Trustee, hereinafter
sometimes called the ''Trustee,'' party of the second part;

     Whereas, the Company by a Mortgage and Deed of Trust (hereinafter
sometimes called the ''Original Mortgage'' when referred to as existing
prior to any supplement thereto or modification thereof, and the
''Mortgage'' when referred to as now or heretofore supplemented and
modified) dated as of May 1, 1940, made to said American National Bank
and Trust Company of Chicago, as Trustee, to secure the payment of the
bonds issued from time to time under the Mortgage for the purposes of
and subject to the limitations specified in the Mortgage, and to secure
the performance of the covenants therein contained, conveyed to the
Trustee thereunder upon certain trusts, terms and conditions, and with
and subject to certain provisos and covenants therein contained, all
and singular the property, rights and franchises which the Company then
owned or should thereafter acquire, excepting the property expressly
excepted by the terms of the Original Mortgage or any indenture
supplemental thereto, to which Mortgage reference is hereby made for
greater certainty; and

     Whereas, the Original Mortgage has been supplemented and modified by
supplemental indentures dated as of May 1, 1942, as of February 1,
1948, as of April 1, 1949, as of October 1, 1949, as of February 1,
1951, as of March 1, 1953, as of June 1, 1956, as of March 1, 1958, as
of October 1, 1960, as of August 1, 1964, as of April 1, 1966, as of
May 1, 1967, as of May 1, 1968, as of October 1, 1970, as of March 1,
1972, as of March 15, 1973, as of February 15, 1974, as of August 15,
1974, as of September 15, 1975, as of June 1, 1976, as of July 1, 1976,
as of August 1, 1977, as of September 1, 1978, as of August 1, 1981, as
of November 1, 1983, as of November 1, 1984, as of December 1, 1984, as
of September 1, 1985, as of October 1, 1986, as of June 1, 1989, as of
August 1, 1989, as of October 15, 1991, as of August 1, 1992, as of
April 1, 1993, as of October 1, 1993, as of February 1, 1994 and as of
January 15, 1995.

     Whereas, Section 8 of the Original Mortgage provides, among other
things, that the form of each series of bonds (other than the initial
issue of bonds) issued thereunder shall be established by an indenture
supplemental thereto authorized by resolution of the Board of Directors
of the Company, and that the form of each series, as established by the
Board of Directors, shall specify the descriptive title of the bonds
and various other terms thereof, and may also contain such other
provisions as the Board of Directors may, in its discretion, cause to
be inserted therein expressing or referring to the terms and conditions
upon which such bonds are to be issued and secured under the Original
Mortgage or any indenture supplemental thereto or in modification
thereof; and

     Whereas, the Company has entered into a Loan Agreement, dated as of
October 1, 1995 (hereinafter called the ''Loan Agreement'') with the
City of Petersburg, Indiana (the ''City''), in order to obtain funds
for the refunding of the aggregate principal amount of Forty Million
Dollars ($40,000,000) of the City's Pollution Control Refunding Revenue
Bonds, Series 1985 (Indianapolis Power & Light Company Project) issued
by the City pursuant to related loan agreements to pay a portion of the
cost of acquisition, construction, installation and equipping by the
Company of certain pollution control facilities (the ''Facilities''); and

     Whereas, the Company has secured a Municipal Bond Insurance Policy
issued by AMBAC Indemnity Corporation (''AMBAC'') to secure the timely
payment of principal and interest on the City of Petersburg Pollution
Control Refunding Revenue Bonds, Adjustable Rate Tender Securities
(ARTS)SM, Series 1995B (Indianapolis Power & Light Company Project),
due January 1, 2023 (the ''Series 1995B Bonds''); and

     Whereas, the Company will enter into an Insurance Agreement dated as
of October 18, 1995 with AMBAC (the ''Insurance Agreement'') to
evidence the reimbursement obligations of the Company to AMBAC for the
payment by AMBAC of the principal of and interest on the Series 1995B
Bonds pursuant to the Municipal Bond Insurance Policy issued by AMBAC
(the ''Bond Obligations''); and

     Whereas, the Company has entered into an Interest Rate Swap
Agreement, dated as of October 11, 1995 with AMBAC Financial Services
Limited Partnership (hereinafter ''AFSLP''), (the ''Swap Agreement'')
under which AFSLP will have an obligation to make payments to the
Company equal to the variable rate interest payments on the Series
1995B Bonds, subject to adjustment in accordance with the terms of the
Swap Agreement, and the Company will have an obligation to make
payments to AFSLP equal to the fixed rate interest payment on the
Company's 2023 PC Bond, as defined below, and such payments subject to
a netting of those obligations in accordance with the terms of the Swap
Agreement (to the extent amounts are owing by the Company after such
netting, the ''Swap Obligations''); and

     Whereas, the Company has secured a Financial Guaranty Insurance
Policy pursuant to which AMBAC insures the payment obligations of the
Company pursuant to the Swap Agreement (the ''Swap Policy''); and

     Whereas, the Insurance Agreement also evidences the reimbursement
obligations of the Company to AMBAC for any payments made pursuant to
the Swap Policy; and

     Whereas, pursuant to the terms of the Swap Agreement and the
Insurance Agreement the Company has agreed to issue a series of its
bonds under the Mortgage and this Forty-Second Supplemental Indenture
in order to evidence and secure amounts owing under the terms of the
Swap Agreement and the Insurance Agreement; and

     Whereas, the Company now desires to provide for the establishment,
execution, authentication and delivery under the Mortgage of bonds of a


series to be known as its ''First Mortgage Bonds, 5.21% Series, due
2023'' (the bonds of said series being hereinafter sometimes referred
to as the ''2023 PC Bond''), limited to the aggregate principal amount
of Forty Million Dollars ($40,000,000); and

     Whereas, all things necessary to make the 2023 PC Bond hereinafter
described, when duly executed by the Company and authenticated and
delivered by the Trustee, a valid, binding and legal obligation of the
Company, and to make this Forty-Second Supplemental Indenture a valid
and binding agreement supplemental to the Original Mortgage, have been
done and performed; and

     Whereas, the execution and delivery by the Company of this
Forty-Second Supplemental Indenture, and the terms of the 2023 PC Bond,
have been duly authorized by the Board of Directors of the Company by
appropriate resolutions of said Board; and

     Whereas, it is provided in and by the Original Mortgage that the
Company will execute and deliver such further instruments and do such
further acts as may be necessary or proper to carry out more
effectually the purposes of the Mortgage, and to make subject to the
lien thereof any property thereafter acquired and intended to be
subject to the lien thereof; and

     Whereas, the Company has, since the date of execution and delivery
of the Original Mortgage, purchased and acquired property and desires
by this Forty-Second Supplemental Indenture specifically to convey to
the Trustee such property for the better protection and security of the
bonds issued and to be issued under the Original Mortgage, or any
indenture supplemental thereto;

     Now, Therefore, This Indenture Witnesseth that, in consideration of
the premises and of the acceptance or purchase of the 2023 PC Bond by
the registered owners thereof, and of the sum of one dollar, lawful
money of the United States of America, to the Company duly paid by the
Trustee at or before the execution and delivery of this Forty-Second
Supplemental Indenture, the receipt whereof is hereby acknowledged, the
Company and the Trustee, respectively, have entered into, executed and
delivered this Forty-Second Supplemental Indenture, for the uses and
purposes hereinafter expressed, that is to say:

     Section 1. The Company has granted, bargained, sold, released,
conveyed, assigned, transferred, mortgaged, pledged, set over and
confirmed, and by these presents does grant, bargain, sell, release,
convey, assign, transfer, mortgage, pledge, set over and confirm
(subject, however, to permitted encumbrances as defined in the Original
Mortgage), unto said American National Bank and Trust Company of
Chicago, as Trustee, as herein provided, and its successors in the
trusts declared in the Original Mortgage and herein, all of the
property, real, personal and mixed, tangible and intangible, of every
kind, character and description which the Company has acquired since
the execution and delivery of the Original Mortgage and now owns
(except property, rights and assets of a character similar to that
excluded from the lien and operation of the Mortgage by the Granting
Clauses of the Original Mortgage, which property, rights and assets are
excluded from the lien and operation of the Mortgage only to the extent
provided therein), including, but without otherwise limiting the
generality of the foregoing, the following described property situated
within the State of Indiana:


                             PART I.

                 ELECTRIC DISTRIBUTING SYSTEMS.

     All electric distributing systems of the Company acquired by it
after May 1, 1940, the date of the Original Mortgage, and located in
the Counties of Bartholomew, Boone, Daviess, Gibson, Greene, Hamilton,
Hancock, Hendricks, Johnson, Knox, Madison, Marion, Monroe, Morgan,
Owen, Pike, Putnam, Shelby and Sullivan, State of Indiana; and any
additions to or extensions of any such systems, together with the
buildings, erections, structures, transmission lines, power stations,
sub-stations, engines, boilers, condensers, pumps, turbines, machinery,
tools, conduits, manholes, insulators, dynamos, motors, lamps, cables,
wires, poles, towers, cross-arms, piers, abutments, switchboard
equipment, meters, appliances, instruments, apparatus, appurtenances,
maps, records, ledgers, contracts, facilities and other property or
equipment used or provided for use in connection with the construction,
maintenance, repair and operation thereof; together also with all of
the rights, privileges, rights-of-way, franchises, licenses, grants,
liberties, immunities, ordinances, permits and easements of the Company
in respect of the construction, maintenance, repair and operation of
said systems.


                              PART II.

             STEAM AND HOT WATER DISTRIBUTING SYSTEMS.

     All the steam and hot water distributing systems acquired by the
Company after May 1, 1940, the date of the Original Mortgage, and
located in the City of Indianapolis, Marion County, Indiana, and any
additions to or extensions of any such systems; together with the
buildings, erections, structures, boilers, heaters, engines, tanks,
pipe lines, mains, connections, service pipes, meters, tools,
instruments, appliances, apparatus, facilities, machinery and other
property and equipment used or provided for use in the construction,
maintenance, repair and operation thereof; and together also with all
of the rights, privileges, rights-of-way, franchises, licenses, grants,
liberties, immunities, ordinances, permits and easements of the Company
in respect of the construction, maintenance, repair and operation of
said systems.


                              PART III.

                 INDETERMINATE PERMITS AND FRANCHISES.

     All indeterminate permits, franchises, ordinances, licenses, and
other authorizations by or from any state, county, municipality, or
other governmental authority, acquired by the Company after May 1,
1940, the date of the Original Mortgage, including particularly, but
not limited to, any indeterminate permits under the Public Service
Commission Act of the State of Indiana, and all Acts amendatory thereof
and supplemental thereto, and all right, title and interest therein now
owned by the Company, and all renewals, extensions and modifications of
said indeterminate permits, franchises, ordinances, licenses, and other
authorizations, and of the indeterminate permits, franchises,
ordinances, licenses, and other authorizations referred to in Part VII
of the Granting Clauses of the Original Mortgage.


                                 PART IV.

                               OTHER PROPERTY.

     All other property, whether real, personal or mixed (except any in
the Mortgage expressly excepted), now owned by the Company and
wheresoever situated, including (without in anywise limiting or
impairing by the enumeration of the same the scope and intent of the
foregoing or of any general description contained in the Mortgage) all
lands, flowage rights, water rights, flumes, raceways, dams,
rights-of-way and roads; all plants for the generation of electricity
by water, steam and/or other power, power houses, telephone systems,
water systems, steam heat and power plants, hot water plants,
sub-stations, transmission lines, distribution systems, bridges,
culverts and tracts; all offices, buildings and structures and the
equipment thereof; all machinery, engines, boilers, dynamos, machines,
regulators, meters, transformers, generators and motors; all appliances
whether electrical, gas or mechanical, conduits, cables and lines; all
pipes whether for water, steam heat and power, or other purposes; all
mains and pipes, service pipes, fittings, valves and connections,
poles, wires, tools, implements, apparatus, furniture and chattels; all
municipal franchises, indeterminate permits, and other permits; all
lines for the transportation, transmission and/or distribution of
electric current, steam heat and power or water for any purpose,
including towers, poles, wires, cables, pipes, conduits and all
apparatus for use in connection therewith; all real estate, lands,
leases, leaseholds; all contracts, whether heat, light, power, water or
street lighting contracts; all easements, servitudes, licenses,
permits, rights, powers, franchises, privileges, rights-of-way and
other rights in or relating to real estate or the occupancy of the same
and (except as hereinafter or in the Mortgage expressly excepted) all
the right, title and interest of the Company in and to all other
property of any kind or nature appertaining to and/or used and/or
occupied and/or enjoyed in connection with any property hereinbefore
described or referred to;

     Together with all and singular the tenements, hereditaments and
appurtenances belonging or in anywise appertaining to the aforesaid
property or any part thereof, with the reversion and reversions,
remainder and remainders and (subject to the provisions of Section 64
of the Original Mortgage), the tolls, rents, revenues, issues,
earnings, income, product and profits thereof, and all the estate,
right, title and interest and claim whatsoever, at law as well as in
equity, which the Company now has or may hereafter acquire in and to
the aforesaid property, indeterminate permits, franchises, ordinances,
licenses and other authorizations and every part and parcel thereof.

     Section 2. There shall be and is hereby established a series of
bonds, limited in aggregate principal amount to Forty Million Dollars
($40,000,000) to be issued under and secured by the Mortgage, to be
designated ''5.21% Series, due 2023'', each of which shall also bear
the descriptive title ''First Mortgage Bonds''; said bonds shall mature
on January 1, 2023, and shall be issued only as fully registered bonds
without coupons in the denomination of five thousand dollars and any
larger denomination which is a whole multiple of five thousand dollars;
they shall be payable on the dates, at the times and in the amounts
required by the Swap Agreement and the Insurance Agreement; provided,
however, that the amount payable hereunder shall not exceed the
principal amount of $40,000,000 plus interest at the per annum rate of
5.21% and shall be payable in lawful money of the United States of
America at the office of the Company in the City of Indianapolis,
Indiana, or, if no such office is maintained, at American National Bank
and Trust Company of Chicago, which is hereby designated and appointed
the office and agency of the Company in the City of Chicago, Illinois,
for the payment of amounts due hereunder, if necessary, and for the
registration, transfer and exchange of such bond as hereinafter
provided; all reference herein to the office or agency of the Company
in the City of Chicago, Illinois, being to American National Bank and
Trust Company of Chicago. In event of the resignation or inability to
act of American National Bank and Trust Company of Chicago, then a
successor agent for all such purposes in the City of Chicago, Illinois,
shall be appointed by the Board of Directors of the Company.

     The 2023 PC Bond shall be dated as of the date of authentication
thereof, except as otherwise provided in Section 10 of the Original Mortgage.

     The 2023 PC Bond will be issued to evidence and secure the
reimbursement obligations of the Company to AMBAC under the Insurance
Agreement for the payment by AMBAC of the principal of and interest on
the Series 1995B Bonds pursuant to the Municipal Bond Insurance Policy,
and to secure payments made by the Company to AFSLP under the Swap
Agreement.

     Upon the notice and in the manner and with the effect provided in
this Section 2, the 2023 PC Bond shall be redeemable prior to the
maturity thereof in whole or in part at the times, and in the amounts
that corresponding redemptions are made on the Series 1995B Bonds and
to the extent that a corresponding reduction occurs in the notional
amount under the Swap Agreement.

     The Company shall provide notice to the Trustee of a reduction, in
whole or in part, in the notional amounts owing under the Swap
Agreement and a corresponding reduction, in whole or in part, in the
outstanding principal amount of the Series 1995B Bonds, and the Trustee
shall thereafter notify the holders of such event and request the
holders to surrender their 2023 PC Bonds for cancellation; or, in the
case of a partial reduction, surrender of the bonds in connection with
the issuance of replacement bonds in denominations equal to the
remaining notional amount owing under the Swap Agreement and the
outstanding principal amount of the Series 1995B Bonds.

     At the option of the holder, the 2023 PC Bond, upon surrender
thereof at the office or agency of the Company in Chicago, Illinois,
together with a written instrument of transfer in form approved by the
Company duly executed by the holder or by his duly authorized attorney,
shall be exchangeable for a like aggregate principal amount of fully
registered bonds of the same series of other authorized denominations.

     The 2023 PC Bond will be nontransferable except with the prior
written consent of the Company and to the Company. To the extent that
it is transferable, it is transferable by the registered holder
thereof, in person or by attorney duly authorized in writing, on the
books of the Company at the office or agency of the Company in the City
of Chicago, Illinois, upon surrender thereof for cancellation at said
office and upon presentation of a written instrument of transfer duly
executed. Thereupon, the Company shall issue in the name of the
transferee, and the Trustee shall authenticate and deliver, a new
registered 2023 PC Bond or Bonds, in authorized denominations, of equal
aggregate principal amount. Any such transfer shall be subject to the
terms and conditions specified in the Mortgage and in this Forty-Second
Supplemental Indenture.

     Except as set forth herein, no charge shall be made upon any
transfer or exchange of any of the 2023 PC Bond other than for any tax
or taxes or other governmental charge required to be paid by the Company.

     The 2023 PC Bond shall be limited to an aggregate principal amount
of Forty Million Dollars ($40,000,000), together with interest at the
per annum rate of 5.21% from the date of authentication to maturity,
(such total obligation hereinafter referred to as the ''Stated
Amount'') and shall be issued under the provisions of Article VII of
the Original Mortgage.

     Section 3. The 2023 PC Bond, and the Trustee's Certificate to be
endorsed thereon, shall be in the following forms, respectively:


[form of face of 2023 pc bond]

     This First Mortgage Bond, 5.21% Series, due 2023 (hereinafter called
the ''2023 PC Bond'') is not transferable except with the prior written
consent of the Company, or to Indianapolis Power & Light Company.


INDIANAPOLIS POWER & LIGHT COMPANY

First Mortgage Bond, 5.21% Series, Due 2023
Due January 1, 2023

No. 1                                           $40,000,000

     INDIANAPOLIS POWER & LIGHT COMPANY, a corporation of the State of
Indiana (hereinafter called the ''Company''), for value received,
hereby promises to pay to AMBAC Indemnity Corporation the Bond
Obligations (as defined in the hereinafter defined Indenture) and to
AMBAC Financial Services, Limited Partnership the Swap Obligations (as
defined in the hereinafter defined Indenture) payable on the dates and
at the times required by the Insurance Agreement and the Swap Agreement
(both as defined in the hereinafter defined Indenture) in lawful money
of the United States of America; provided, however, that the amount
payable hereunder shall not exceed the principal amount of $40,000,000
plus interest at the per annum rate of 5.21%. The amounts payable
hereunder are subject to reduction in the manner described in the
Indenture in the event of reductions in the Bond Obligations and the
Swap Obligations. The amounts payable hereunder will be paid to the
registered owner of this 2023 PC Bond at or before the close of
business on such dates, or if such date shall be a Saturday, Sunday,
holiday or a day on which banking institutions in the City of
Indianapolis or the city of any paying agents are authorized by law to
close, on or before the close of business on the next succeeding
business day on which such banking institutions are open for business.


     REFERENCE IS MADE TO THE FURTHER PROVISIONS OF THIS 2023 PC BOND SET
FORTH ON THE REVERSE HEREOF. SUCH FURTHER PROVISIONS SHALL, FOR ALL
PURPOSES, HAVE THE SAME EFFECT AS THOUGH FULLY SET FORTH IN THIS PLACE.


     No recourse shall be had for any amounts payable on this 2023 PC
Bond against any incorporator or any past, present or future subscriber
to the capital stock, stockholder, officer or director of the Company
or of any predecessor or successor corporation, as such, either
directly or through the Company or any predecessor or successor
corporation, under any rule of law, statute, or constitution or by the
enforcement of any assessment or otherwise, all such liability of
incorporators, subscribers, stockholders, officers and directors, as
such, being waived and released by the terms of the Mortgage, as herein
defined.

     This 2023 PC Bond shall not become obligatory until American
National Bank and Trust Company of Chicago, the Trustee under the
Mortgage, as herein defined, or its successor thereunder, shall have
signed the form of certificate endorsed hereon.

     In Witness Whereof, Indianapolis Power & Light Company has caused
this 2023 PC Bond to be signed in its name by its President or its
Treasurer, by his signature or a facsimile thereof, and its corporate
seal to be affixed hereon, attested by its Secretary or one of its
Assistant Secretaries, by his signature or a facsimile thereof.


                           Indianapolis Power & Light Company


Dated                      By
                                Treasurer
Attest:

By
Secretary


[form of trustee's certificate on 2023 pc bond]

Trustee's Certificate

     This 2023 PC Bond is one of the bonds, of the series herein
designated, provided for in the within-mentioned Mortgage and
Forty-Second Supplemental Indenture thereto.


                  American National Bank and Trust
                  Company of Chicago
                                        Trustee


                  By
                        Authorized Signature


[form of reverse side of 2023 pc bond]

INDIANAPOLIS POWER & LIGHT COMPANY

First Mortgage Bond, 5.21% Series, due 2023
Due January 1, 2023

     This 2023 PC Bond is one of an issue of bonds of the Company,
issuable in series, and is one of a series known as its First Mortgage
Bonds, 5.21% Series, due 2023 (herein called the ''2023 PC Bond'')
limited in aggregate principal amount to Forty Million Dollars
($40,000,000) and established by a Forty-Second Supplemental Indenture
dated as of October 1, 1995 (the ''Indenture''), all bonds of all
series issued and to be issued under and equally secured (except
insofar as any sinking or other fund, established in accordance with
the provisions of the Mortgage hereinafter mentioned, may afford
additional security for the bonds of any particular series) by a
Mortgage and Deed of Trust, dated as of May 1, 1940, executed by the
Company to American National Bank and Trust Company of Chicago, as the
Trustee (which Mortgage and Deed of Trust as supplemented and modified
by all supplemental indentures thereto is hereinafter referred to as
the ''Mortgage''), to which Mortgage reference is made for a
description of the property mortgaged and pledged, the nature and
extent of the security, the rights of the bearers or registered owners
of the bonds in respect of such security, the duties and immunities of
the Trustee and the terms and conditions upon which the bonds are secured.

     This 2023 PC Bond evidences and secures the reimbursement
obligations of the Company to AMBAC under the Insurance Agreement for
the payment by AMBAC of the principal of and interest on the Series
1995B Bonds pursuant to the Municipal Bond Insurance Policy, and to
secure certain payments made by the Company to AFSLP under the Swap
Agreement. Anything herein to the contrary notwithstanding, all amounts
constituting Settlement Amounts, as defined in the Swap Agreement,
shall not be payable hereunder or secured hereby.

     This 2023 PC Bond is subject to redemption in whole or in part at
the times and in the amounts that corresponding redemptions are made on
the Series 1995B Bonds and to the extent that a corresponding reduction
occurs in the notional amount under the Swap Agreement.

     With the consent of the Company and to the extent permitted by and
as provided in the Mortgage, the rights and obligations of the Company
and/or of the holders of the bonds and/or coupons and/or the terms and
provisions of the Mortgage and/or any instruments supplemental thereto
may be modified or altered by affirmative vote of the holders of at
least sixty-six and two-thirds per centum (662/3%) in principal amount
of the bonds affected by such modification or alteration then
outstanding under the Mortgage (excluding bonds disqualified from
voting by reason of the Company's interest therein as provided in the
Mortgage); provided that no such modification or alteration shall
permit the extension of the maturity of the principal of this 2023 PC
Bond or the reduction in the rate of interest hereon or any other
modification in the terms of payment of amounts owing hereunder without
the consent of the holder hereof. The principal hereof may be declared
or may become due and payable prior to the stated date of maturity
hereof, on the conditions, in the manner and at the time set forth in
the Mortgage, upon the occurrence of a completed default as in the
Mortgage provided.

     No reference herein to the Mortgage, and no provision of this 2023
PC Bond or of the Mortgage, shall alter or impair the obligation of the
Company, to pay, subject to the provisions of the Forty-Second
Supplemental Indenture, all amounts owing under the Swap Agreement and
the Insurance Agreement at the place, at the respective times and in
the manner herein prescribed.

     This 2023 PC Bond is issuable only in full registered form without
coupons in denominations of Five Thousand Dollars and any larger
denomination which is a whole multiple of Five Thousand Dollars.

     This 2023 PC Bond will be nontransferable except with the prior
written consent of the Company and to the Company. To the extent that
it is transferable, it is transferable by the registered holder
thereof, in person or by attorney duly authorized in writing, on the
books of the Company at the office or agency of the Company in the City
of Chicago, Illinois, upon surrender thereof for cancellation at said
office and upon presentation of a written instrument of transfer duly
executed. Thereupon, the Company shall issue in the name of the
transferee, and the Trustee shall authenticate and deliver, a new
registered 2023 PC Bond or Bonds, in authorized denominations, of equal
aggregate principal amount. Any such transfer shall be subject to the
terms and conditions specified in the Mortgage and in the Forty-Second
Supplemental Indenture.


[end of 2023 pc bond form]

     Section 4. Until the 2023 PC Bond in definitive form is ready for
delivery, the Company may execute, and upon its request in writing the
Trustee shall authenticate and deliver, in lieu thereof, a fully
registered 2023 PC Bond in temporary form, as provided in Section 15 of
the Original Mortgage. Such bond may, in lieu of the statement of the
specific redemption prices required to be set forth in such bond in
definitive form, include a reference to this Forty-Second Supplemental
Indenture for a statement of such redemption prices.

     Section 5. The Company covenants and agrees that it will duly and
punctually pay to the holder of the 2023 PC Bond all amounts due and
owing under the Swap Agreement or the Insurance Agreement up to the
Stated Amount, at the dates and place and in the manner mentioned
therein; provided, however, that:

     (a) the obligation of the Company hereunder to AFSLP shall be
discharged upon termination of the Swap Agreement and payment of all
amount owing thereunder; and

     (b) the obligation of the Company hereunder to AMBAC shall be
discharged upon termination of the Swap Agreement together with the
delivery to the Trustee under the Indenture of Trust dated as of
October 1, 1995 between the City and Bank One, Indianapolis, NA, as
Trustee, of a new First Mortgage Bond in the principal amount of the
Series 1995B Bonds then outstanding.

Upon payment of all amounts owing hereunder, the 2023 PC Bond is paid
or deemed paid in full, and upon its receipt by the Company, such bond
shall be delivered to the Trustee for cancellation. The Company shall
promptly inform the Trustee of all payments made and credits availed of
with respect to its obligations on the 2023 PC Bond. The Trustee shall
not be required to recognize any payment made or credit availed of with
respect to any 2023 PC Bond unless it has received (a) the bond for
cancellation by it, or (b) certificates signed by duly authorized
officers of AMBAC Indemnity or AFSLP specifying the amount of such
payment or credit. In the absence of receipt by the Trustee of any 2023
PC Bond, any such certificates shall be controlling and conclusive.

     Section 6. The covenant of the Company to make annual payments to
the Trustee for a Maintenance and Improvement Fund as contained in
Section 41 of the Original Mortgage and in the first twenty-four
Supplemental Indentures to the Original Mortgage creating the several
series of First Mortgage Bonds presently outstanding under such
Supplemental Indentures shall not apply to nor be for the benefit of
the 2023 PC Bond, and the Company reserves the right, without any
consent of, or other action by, the holder of the 2023 PC Bond, to
amend, modify or delete the provisions of the Mortgage relating to such
Maintenance and Improvement Fund and by acceptance of the 2023 PC Bond
the holder thereof waives any right or privilege so to consent or take
any other action with respect thereto.

     Section 7. The Company covenants that, so long as the 2023 PC Bond
shall remain outstanding, it will comply with all of the provisions of
Section 47 of the Original Mortgage, including the provisions with
respect to limitations on dividends and distributions and the purchase
and redemption of stock.

     Section 8. The Trustee hereby accepts the trusts herein declared,
provided and created and agrees to perform the same upon the terms and
conditions herein and in the Mortgage set forth and upon the following
terms and conditions:

     The recitals contained herein and in the bonds shall be taken as the
statements of the Company and the Trustee assumes no responsibility for
the correctness of the same. The Trustee makes no representations as to
the validity or adequacy of the security afforded hereby, or as to the
validity of this Forty-Second Supplemental Indenture or of the 2023 PC
Bond issued hereunder.

     Section 9. Whenever in this Forty-Second Supplemental Indenture
either of the parties hereto is named or referred to, this shall,
subject to the provisions of Article XVII of the Original Mortgage, be
deemed to include the successors or assigns of such party, and all the
covenants and agreements in this Forty-Second Supplemental Indenture
contained by or on behalf of the Company, or by or on behalf of the
Trustee, shall, subject as aforesaid, bind and inure to the benefit of
the respective successors and assigns of such parties, whether so
expressed or not.

     Section 10. Nothing in this Forty-Second Supplemental Indenture
expressed or implied, is intended or shall be construed to confer upon,
or to give to, any person, co-partnership or corporation, other than
the parties hereto and the holders of the bonds and coupons outstanding
under the Mortgage, any right, remedy, or claim under or by reason of
this Forty-Second Supplemental Indenture or any covenant, condition or


stipulation hereof; and all the covenants, conditions, stipulations,
promises and agreements in this Forty-Second Supplemental Indenture
contained by or on behalf of the Company shall be for the sole and
exclusive benefit of the parties hereto and of the holders of the bonds
and of the coupons outstanding under the Mortgage.

     Section 11. The Company covenants that all of the terms, provisions
and conditions of the Mortgage shall be applicable to the 2023 PC Bond
issued hereunder, except as herein otherwise provided and except
insofar as the same may be inconsistent with the provisions of this
Forty-Second Supplemental Indenture.

     Section 12. This Forty-Second Supplemental Indenture is dated as of
October 1, 1995, although executed and delivered on the date of the
acknowledgement hereof by the Trustee; and shall be simultaneously
executed and delivered in several counterparts, and all such
counterparts executed and delivered, each as an original, shall
constitute but one and the same instrument.



     In Witness Whereof, Indianapolis Power & Light Company, party of the
first part, has caused its corporate name to be hereunto affixed and
this instrument to be signed and acknowledged by its Vice-President or
Treasurer, and its corporate seal to be hereto affixed and attested by
its Secretary or an Assistant Secretary, for and in its behalf, and
American National Bank And Trust Company Of Chicago, party of the
second part, as Trustee, has caused its corporate name to be hereunto
affixed and this instrument to be signed and acknowledged by one of its
Vice-Presidents, and its corporate seal to be hereto affixed and
attested by one of its Assistant Secretaries, all as of the day, month
and year first above written.


                        Indianapolis Power & Light Company,


                        /s/   Steven L. Meyer
                        By    Steven L. Meyer,
                                Treasurer

Attest:

/s/   Wendy V. Yerkes
Wendy V. Yerkes,
Assistant Secretary

                        American National Bank And Trust Company of
                                Chicago


                        /s/   Ronald B. Bremen
                        By    Ronald B. Bremen,
                                Vice-President

Attest:
(Seal)
/s/   Robert M. Selangowski

Robert M. Selangowski,
Assistant Secretary



State of Indiana )
                 ) ss:
County of Marion )



     On this 12th day of October, in the year 1995, before me, a Notary
Public in and for the County and State aforesaid, personally came
Steven L. Meyer, Treasurer, and Wendy V. Yerkes, Assistant Secretary, of
Indianapolis Power & Light Company, one of the corporations described
in and which executed the foregoing instrument, to me personally known
and known to me personally to be such Treasurer and Assistant
Secretary, respectively. Said Steven L. Meyer and Wendy V. Yerkes being
by me severally duly sworn did depose and say that the said Steven L.
Meyer resides in Marion County, Indiana and the said Wendy V. Yerkes
resides in Marion County, Indiana; that said Steven L. Meyer is
Treasurer and said Wendy V. Yerkes is Assistant Secretary of said
Indianapolis Power & Light Company; that each of them knows the
corporate seal of said corporation; that the seal affixed to said
instrument and bearing the name of said corporation is such corporate
seal; that it was so affixed by order of the Board of Directors of said
corporation; and that each of them signed his name thereto by like
order; and each of them acknowledged the execution of said instrument
on behalf of said corporation to be his free and voluntary act and deed
and the free and voluntary act and deed of said corporation, for the
uses and purposes therein set forth.

     In Witness Whereof, I have hereunto set my hand and affixed my
official seal this 12th day of October, 1995.



                        /s/   Sandra L. Stewart

                              Sandra L. Stewart
                              Notary Public

My Commission Expires:
     July 24, 1998

My County of Residence is:
     Johnson

(Notarial Seal)

State of Illinois  )
                   ) ss:
County of Cook     )

     On this 12th day of October, in the year 1995, before me, a Notary
Public in and for the County and State aforesaid, personally came Ronald B.
Bremen, Vice-President, and Robert M. Selangowski, Assistant
Secretary, of American National Bank and Trust Company of Chicago, one
of the corporations described in and which executed the foregoing
instrument, to me personally known and known to me personally to be
such Senior Vice-President and Assistant Secretary, respectively. Said
Ronald B. Bremen and Robert M. Selangowski, being by me severally sworn
did depose and say that the said Ronald B. Bremen resides in Glencoe,
Illinois, and that the said Robert M. Selangowski resides in Lansing,
Illinois; that said Ronald B. Bremen is Vice-President and said Robert M.
Selangowski is Assistant Secretary of said American National Bank and Trust
Company of Chicago; that each of them knows the corporate seal of said
corporation; that the seal affixed to said instrument and bearing the
name of said corporation is such corporate seal; that it was so affixed
by authority of the Board of Directors of said corporation; that each
of them signed his name thereto by like authority; and each of them
acknowledged the execution of said instrument on behalf of said
corporation to be his free and voluntary act and deed and the free and
voluntary act and deed of said corporation, for the uses and purposes
therein set forth.

     In Witness Whereof, I have hereunto set my hand and affixed my
official seal this 12th day of October, 1995.



                                /s/   Bernadette G. Janairo
                                      Bernadette G. Janairo
                                      Notary Public

My Commission Expires:
     May 22, 1998

My County of Residence is:
     Cook

(Notarial Seal)

This instrument was prepared by
Bryan G. Tabler


<PAGE>

                                                                  Exhibit 4.4.13

                                                                [CONFORMED COPY]
================================================================================



                       INDIANAPOLIS POWER & LIGHT COMPANY
                                       TO
                        AMERICAN NATIONAL BANK AND TRUST
                               COMPANY OF CHICAGO
                                                Trustee



                                  -------------

                       Forty-Third Supplemental Indenture
                                  -------------



                           Dated as of August 1, 2001


                       ESTABLISHING FIRST MORTGAGE BONDS,
                             5.75% Series, Due 2021




================================================================================

<PAGE>

                                       ii

                               TABLE OF CONTENTS*

                                       of
                       FORTY-THIRD SUPPLEMENTAL INDENTURE
                                       of
                       INDIANAPOLIS POWER & LIGHT COMPANY
                                                                            Page

PARTIES........................................................................1
RECITALS ......................................................................1
SECTION 1       Granting clauses...............................................3
                    Part I   Electric Distributing Systems.....................4
                    Part II Reserved...........................................4
                    Part III Indeterminate Permits and Franchises..............4
                    Part IV  Other Property....................................5
                    General and after-acquired title...........................6
SECTION 2       Designation of Forty-Third series of bonds and kind and
                    denominations thereof .....................................6
                Designation of Company or American National Bank and Trust
                    Company of Chicago as paying agent.........................6
                Purpose of bonds...............................................7
                Redemption of bonds............................................7
                Exchange of bonds.............................................12
                Transfer of bonds.............................................12
                Series limited to $40,000,000.................................13
SECTION 3       Form of fully registered bond.................................13
                Form of Trustee's certificate on bonds........................15
SECTION 4       Temporary bonds...............................................19
SECTION 5       Payment of principal and interest; credits....................19
SECTION 6       Annual Payments for Maintenance and Improvement Fund..........20
SECTION 7       Compliance with Section 47 of Original Mortgage with
                   respect to dividend restrictions...........................20
SECTION 8       Acceptance of trusts by Trustee and conditions of
                   Acceptance.................................................20
-------------------
*    Table of Contents is not part of the Forty-Third Supplemental Indenture and
     should not be considered  such. It is included  herein only for purposes of
     convenient reference.
<PAGE>

                                      iii

                                                                            Page

SECTION 9         Successors and assigns......................................20
SECTION 10        Limitation of rights hereunder..............................21
SECTION 11        Compliance with terms, provisions and
                        conditions of Mortgage................................21
SECTION 12        Execution in counterparts...................................21

TESTIMONIUM...................................................................22
SIGNATURES AND SEALS..........................................................22
ACKNOWLEDGEMENTS..............................................................22

<PAGE>

     THIS  FORTY-THIRD  SUPPLEMENTAL  INDENTURE,  dated as of  August  1,  2001,
between  INDIANAPOLIS  POWER & LIGHT  COMPANY,  a  corporation  of the  State of
Indiana,  hereinafter  sometimes  called the "Company," party of the first part,
and AMERICAN  NATIONAL  BANK AND TRUST  COMPANY OF CHICAGO,  a national  banking
association,  as Trustee,  hereinafter  sometimes called the "Trustee," party of
the second part;

     WHEREAS, the Company by a Mortgage and Deed of Trust (hereinafter sometimes
called  the  "Original  Mortgage"  when  referred  to as  existing  prior to any
supplement thereto or modification  thereof, and the "Mortgage" when referred to
as now or heretofore supplemented and modified) dated as of May 1, 1940, made to
said American National Bank and Trust Company of Chicago,  as Trustee, to secure
the  payment of the bonds  issued from time to time under the  Mortgage  for the
purposes of and subject to the  limitations  specified in the  Mortgage,  and to
secure the  performance  of the  covenants  therein  contained,  conveyed to the
Trustee  thereunder  upon certain  trusts,  terms and  conditions,  and with and
subject to certain provisos and covenants  therein  contained,  all and singular
the  property,  rights and  franchises  which the  Company  then owned or should
thereafter  acquire,  excepting the property  expressly excepted by the terms of
the Original Mortgage or any indenture  supplemental  thereto, to which Mortgage
reference is hereby made for greater certainty; and

     WHEREAS,  the  Original  Mortgage  has been  supplemented  and  modified by
supplemental  indentures  dated as of May 1, 1942, as of February 1, 1948, as of
April 1, 1949, as of October 1, 1949 (two),  as of February 1, 1951, as of March
1, 1953,  as of June 1, 1956,  as of March 1, 1958, as of October 1, 1960, as of
August 1, 1964, as of April 1, 1966, as of May 1, 1967, as of May 1, 1968, as of
October 1, 1970,  as of March 1, 1972,  as of March 15, 1973, as of February 15,
1974, as of August 15, 1974, as of September 15, 1975, as of June 1, 1976, as of
July 1, 1976,  as of August 1, 1977,  as of September  1, 1978,  as of August 1,
1981 (two),  as of November 1, 1983,  as of November 1, 1984,  as of December 1,
1984,  as of September 1, 1985, as of October 1, 1986, as of June 1, 1989, as of
August 1, 1989,  as of October 15,  1991,  as of August 1, 1992,  as of April 1,
1993, as of October 1, 1993 (two),  as of February 1, 1994 (two),  as of January
15, 1995, and as of October 1, 1995; and

     WHEREAS,  Section 8 of the Original Mortgage provides,  among other things,
that the form of each series of bonds  (other  than the initial  issue of bonds)
issued  thereunder  shall be  established by an indenture  supplemental  thereto
authorized by resolution of the Board of Directors of the Company,  and that the
form of each series, as established by the Board of Directors, shall specify the
descriptive  title of the bonds and various  other terms  thereof,  and may also
contain such other  provisions as the Board of Directors may, in its discretion,
cause to be inserted therein expressing or referring to the terms and conditions
upon which such bonds are to be issued and secured  under the Original  Mortgage
or any indenture supplemental thereto or in modification thereof; and

     WHEREAS, the Company entered into a Loan Agreement, dated as of May 1, 1991
(hereinafter  called the "Loan Agreement") with the City of Petersburg,  Indiana
(the  "City"),  in order to obtain  funds  for the  refunding  of the  aggregate
principal amount of Forty Million Dollars  ($40,000,000) of the City's Pollution
Control Revenue Bonds,  Series 1981 (Indianapolis Power & Light Company Project)
issued by the City  pursuant to related loan  agreements to pay a portion of the
cost of acquisition, construction,  installation and equipping by the Company of
certain pollution control facilities, sewage facilities and solid waste disposal
facilities (the "Facilities") at the Petersburg Generating Station Units 1, 2, 3
and 4 (the "Plant") and the issuance of $40,000,000  aggregate  principal amount
of  the  City's  Pollution  Control   Refunding   Revenue  Bonds,   Series  1991
(Indianapolis Power & Light Company Project) (the "Bonds"); and

     WHEREAS, the Company has elected to convert the applicable interest rate on
the Bonds to the Long Term Rate  effective as of August 1, 2001, and pursuant to
the Loan Agreement,  the Company has agreed to issue a series of its bonds under
the Mortgage and this  Forty-Third  Supplemental  Indenture in order to evidence
and secure its indebtedness under the Loan Agreement; and

     WHEREAS,  the  Company  now  desires  to  provide  for  the  establishment,
execution,  authentication  and delivery under the Mortgage of bonds of a series
to be known as its "First Mortgage Bonds,  5.75% Series, due 2021" (the bonds of
said  series  being  hereinafter  sometimes  referred to as the "2021 PC Bond"),
limited  to  the   aggregate   principal   amount  of  Forty   Million   Dollars
($40,000,000); and

     WHEREAS,  all  things  necessary  to make  the  2021  PC  Bond  hereinafter
described,  when duly executed by the Company and authenticated and delivered by
the Trustee, a valid,  binding and legal obligation of the Company,  and to make
this  Forty-Third   Supplemental   Indenture  a  valid  and  binding   agreement
supplemental to the Original Mortgage, have been done and performed; and

     WHEREAS,  the  execution  and  delivery by the Company of this  Forty-Third
Supplemental  Indenture,  and the  terms  of the 2021 PC Bond,  have  been  duly
authorized by the Board of Directors of the Company by  appropriate  resolutions
of said Board; and

     WHEREAS,  it is provided in and by the Original  Mortgage  that the Company
will execute and deliver such  further  instruments  and do such further acts as
may be  necessary  or proper to carry out more  effectively  the purposes of the
Mortgage,  and to make  subject  to the lien  thereof  any  property  thereafter
acquired and intended to be subject to the lien thereof; and

     WHEREAS,  the Company has,  since the date of execution and delivery of the
Original  Mortgage,   purchased  and  acquired  property  and  desires  by  this
Forty-Third  Supplemental  Indenture  specifically to convey to the Trustee such
property  for the better  protection  and security of the bonds issued and to be
issued under the Original Mortgage, or any indenture supplemental thereof;

     NOW,  THEREFORE,  THIS INDENTURE  WITNESSETH  that, in consideration of the
premises and of the acceptance or purchase of the 2021 PC Bond by the registered
owners thereof, and of the sum of one dollar,  lawful money of the United States
of America,  to the Company duly paid by the Trustee at or before the  execution
and delivery of this Forty-Third  Supplemental Indenture, the receipt whereof is
hereby  acknowledged,  the Company and the Trustee,  respectively,  have entered
into, executed and delivered this Forty-Third  Supplemental  Indenture,  for the
uses and purposes hereinafter expressed, that is to say:

     SECTION 1. The Company has granted,  bargained,  sold, released,  conveyed,
assigned, transferred,  mortgaged, pledged, set over and confirmed, and by these
presents does grant, bargain, sell, release, convey, assign, transfer, mortgage,
pledge,  set over and confirm (subject,  however,  to permitted  encumbrances as
defined in the Original  Mortgage),  unto said American  National Bank and Trust
Company of Chicago,  as Trustee,  as herein provided,  and its successors in the
trusts declared in the Original Mortgage and herein, all of the property,  real,
personal  and mixed,  tangible  and  intangible,  of every kind,  character  and
description  which the Company has acquired  since the execution and delivery of
the  Original  Mortgage and now owns  (except  property,  rights and assets of a
character  similar to that  excluded from the lien and operation of the Mortgage
by the Granting  Clauses of the Original  Mortgage,  which property,  rights and
assets are excluded  from the lien and  operation  of the  Mortgage  only to the
extent  provided  therein),   including,  but  without  otherwise  limiting  the
generality of the foregoing,  the following  described  property situated within
the State of Indiana:

                                     PART I.

                         ELECTRIC DISTRIBUTING SYSTEMS.

     All electric  distributing  systems of the Company acquired by it after May
1, 1940,  the date of the  Original  Mortgage,  and  located in the  Counties of
Bartholomew,  Boone, Daviess,  Gibson,  Greene,  Hamilton,  Hancock,  Hendricks,
Johnson,  Knox, Madison,  Marion,  Monroe,  Morgan, Owen, Pike, Putnam,  Shelby,
Sullivan and Switzerland,  State of Indiana;  and any additions to or extensions
of any  such  systems,  together  with  the  buildings,  erections,  structures,
transmission lines, power stations, sub-stations,  engines, boilers, condensers,
pumps, turbines,  machinery,  tools, conduits,  manholes,  insulators,  dynamos,
motors,  lamps, cables,  wires, poles,  towers,  cross-arms,  piers,  abutments,
switchboard   equipment,    meters,    appliances,    instruments,    apparatus,
appurtenances,  maps, records, ledgers, contracts, facilities and other property
or  equipment  used or provided  for use in  connection  with the  construction,
maintenance, repair and operation thereof; together also with all of the rights,
privileges, rights-of-way,  franchises, licenses, grants, liberties, immunities,
ordinances, permits and easements of the Company in respect of the construction,
maintenance, repair and operation of said systems.

                                    PART II.
                                   [Reserved ]

                                    PART III.
                      INDETERMINATE PERMITS AND FRANCHISES.

     All indeterminate  permits,  franchises,  ordinances,  licenses,  and other
authorizations by or from any state, county, municipality, or other governmental
authority,  acquired by the Company after May 1, 1940,  the date of the Original
Mortgage, including particularly,  but not limited to, any indeterminate permits
under the Public Service  Commission  Act of the State of Indiana,  and all Acts
amendatory thereof and supplemental  thereto,  and all right, title and interest
therein now owned by the Company, and all renewals, extensions and modifications
of said  indeterminate  permits,  franchises,  ordinances,  licenses,  and other
authorizations,  and  of  the  indeterminate  permits,  franchises,  ordinances,
licenses,  and  other  authorizations  referred  to in Part VII of the  Granting
Clauses of the Original Mortgage.


                                    PART IV.

                                 OTHER PROPERTY.

     All other  property,  whether  real,  personal or mixed  (except any in the
Mortgage expressly excepted), now owned by the Company and wheresoever situated,
including  (without in anywise  limiting or impairing by the  enumeration of the
same the  scope  and  intent  of the  foregoing  or of any  general  description
contained in the  Mortgage) all lands,  flowage  rights,  water rights,  flumes,
raceways,  dams,  rights-of-way  and roads;  all plants  for the  generation  of
electricity by water, steam and/or other power, power houses, telephone systems,
water systems, power plants, hot water plants, sub-stations, transmission lines,
distribution systems, bridges,  culverts and tracts; all offices,  buildings and
structures and the equipment thereof; all machinery,  engines, boilers, dynamos,
machines,   regulators,   meters,  transformers,   generators  and  motors;  all
appliances whether electrical,  gas or mechanical,  conduits,  cables and lines;
all pipes whether for water, and power, or other purposes;  all mains and pipes,
service  pipes,   fittings,   valves  and  connections,   poles,  wires,  tools,
implements,   apparatus,  furniture  and  chattels;  all  municipal  franchises,
indeterminate  permits,  and other  permits;  all lines for the  transportation,
transmission and/or distribution of electric current, and power or water for any
purpose,  including  towers,  poles,  wires,  cables,  pipes,  conduits  and all
apparatus  for use in  connection  therewith;  all real estate,  lands,  leases,
leaseholds; all contracts,  whether heat, light, power, water or street lighting
contracts;  all  easements,   servitudes,  licenses,  permits,  rights,  powers,
franchises,  privileges,  rights-of-way  and other rights in or relating to real
estate  or the  occupancy  of the  same and  (except  as  hereinafter  or in the
Mortgage expressly excepted) all the right, title and interest of the Company in
and to all other  property  of any kind or nature  appertaining  to and/or  used
and/or  occupied  and/or  enjoyed in connection  with any property  hereinbefore
described or referred to;

     TOGETHER   WITH  all  and  singular  the   tenements,   hereditaments   and
appurtenances  belonging or in anywise appertaining to the aforesaid property or
any part thereof,  with the reversion and  reversions,  remainder and remainders
and  (subject to the  provisions  of Section 64 of the Original  Mortgage),  the
tolls, rents, revenues,  issues, earnings,  income, product and profits thereof,
and all the estate,  right,  title and interest and claim whatsoever,  at law as
well as in equity,  which the Company now has or may hereafter acquire in and to
the aforesaid property, indeterminate permits, franchises,  ordinances, licenses
and other authorizations and every part and parcel thereof.

     SECTION  2.  There  shall be and is hereby  established  a series of bonds,
limited in aggregate principal amount to Forty Million Dollars  ($40,000,000) to
be issued under and secured by the Mortgage,  to  be designated  "5.75%  Series,
due 2021", each  of which shall also bear the descriptive  title "First Mortgage
Bonds";  said  bonds shall mature on AUGUST 1, 2021, and shall be issued only as
fully  registered  bonds without  coupons in the  denomination  of five thousand
dollars and any larger  denomination  which is a whole multiple of five thousand
dollars;  they shall bear interest  from the  beginning of the current  interest
period during which each bond is dated, at the rate per annum  designated in the
title thereof,  payable  semi-annually,  on February 1 and August 1 of each year
(except that the first interest  payment  thereon shall be made February 1, 2002
for the period from August 1, 2001 through January 31, 2002);  and the principal
of, premium,  if any, and interest on said bond shall be payable in lawful money
of the United  States of  America  at the  office of the  Company in the City of
Indianapolis, Indiana, or, if no such office is maintained, at American National
Bank and Trust Company of Chicago,  which is hereby designated and appointed the
office  and  agency of the  Company in the City of  Chicago,  Illinois,  for the
payment of the principal of, premium,  if any, and interest on the 2021 PC Bond,
if necessary,  and for the  registration,  transfer and exchange of such bond as
hereinafter  provided;  all  reference  herein  to the  office  or agency of the
Company in the City of Chicago,  Illinois,  for the payment of the principal of,
premium, if any, and interest on the 2021 PC Bond, or the registration, transfer
or  exchange  thereof,  being to  American  National  Bank and Trust  Company of
Chicago.  In event of the  resignation or inability to act of American  National
Bank and Trust Company of Chicago,  then a successor agent for all such purposes
in the City of Chicago,  Illinois,  shall be appointed by the Board of Directors
of the Company.

     The 2021 PC Bond shall be dated as of the date of  authentication  thereof,
except as otherwise provided in Section 10 of the Original Mortgage.

     The  2021 PC Bond  will be  issued  to  evidence  and  secure a loan to the
Company by the City pursuant to the Loan  Agreement of certain funds  previously
acquired  by the City  through  the  issuance  of City of  Petersburg,  Indiana,
Pollution  Control Refunding Revenue Bonds,  Series 1991  (Indianapolis  Power &
Light Company  Project) (the "Series 1991 Bonds"),  authenticated  and delivered
under and pursuant to an Indenture of Trust dated as of May 1, 1991 (hereinafter
called the "City Indenture"),  by and between the City and National City Bank of
Indiana,   as  successor  to  Merchants   National   Bank  &  Trust  Company  of
Indianapolis, as Trustee (the "City Trustee"). Pursuant to the City's pledge and
assignment of the Loan Agreement,  as set forth in the City Indenture,  the 2021
PC Bond shall be issued to the City and assigned to the City Trustee. All of the
proceeds of the Series 1991 Bonds were used for the  refunding of the  aggregate
principal amount of Forty Million Dollars  ($40,000,000) of the City's Pollution
Control Revenue Bonds,  Series 1981 (Indianapolis Power & Light Company Project)
issued by the City pursuant to applicable loan agreements.

     Upon the notice and in the  manner  and with the  effect  provided  in this
Section 2, the 2021 PC Bond shall be  redeemable  prior to the maturity  thereof
under any one or more of the following circumstances:

(a)  In whole,  at the option of the  Company,  if the  Facilities  or the Plant
     shall have been  damaged or  destroyed to such extent that (i) it cannot be
     reasonably expected, in the opinion of the Company, to be restored within a
     period of six (6) months to the  condition  thereof  immediately  preceding
     such damage or destruction, or (ii) to such extent that the Company, in its
     reasonable  opinion,  is  thereby  prevented  from  carrying  on its normal
     operations  for a period of six (6) months or more, or (iii) to such extent
     that the restoration  thereof would not be, taking into  consideration  the
     net  proceeds  of any  insurance  payable  as a result  of such  damage  or
     destruction, economic in the reasonable opinion of the Company.

(b)  In whole,  at the option of the Company,  if title to, or the temporary use
     of, all or  substantially  all of the  Facilities or the Plant,  shall have
     been taken under the exercise of the power of eminent domain, or should any
     governmental  body or  agency  exercise  any  right  which  it may  have to
     purchase or designate a purchaser  for the same, or should such property be
     sold to any  governmental  body or agency so that the result of such taking
     or takings is that (i) the Company,  in its reasonable  opinion, is thereby
     prevented  from carrying on its normal  operations of either the Facilities
     or the Plant for a period of six (6) months or more,  (ii) the  restoration
     required as a result of the taking  cannot be reasonably  expected,  in the
     opinion of the Company,  to be completed in a period of six (6) months,  or
     (iii) the restoration  thereof,  taking into consideration the net proceeds
     from such eminent  domain  award,  would not be economic in the  reasonable
     opinion of the Company.

(c)  In whole,  at the option of the Company,  if, as a result of any changes in
     the  Constitution or law of the State of Indiana or the Constitution or law
     of the United States of America or of legislative or administrative  action
     (whether  state or  federal) or by final  decree,  judgment or order of any
     court or administrative  body (whether state or federal) the Loan Agreement
     or the Note shall,  in the  reasonable  opinion of counsel for the Company,
     have  become  void  or   unenforceable  or  impossible  of  performance  in
     accordance  with the intent and purpose of the parties as  expressed in the
     Loan Agreement;  or unreasonable burdens or excessive liabilities shall, in
     the reasonable  opinion of the Company,  have been imposed upon the City or
     the Company, with respect to the Facilities or operation thereof, including
     without limitation federal, state or other ad valorem,  property, income or
     other taxes not being imposed on the date of the Loan Agreement  other than
     ad valorem taxes  presently  levied upon privately  owned property used for
     the same general purpose as the Facilities.

(d)  In  whole,  at the  option  of the  Company,  if  changes  in the  economic
     availability of raw materials,  operating supplies or facilities  necessary
     for the  operation of the  Facilities  or the Plant shall have  occurred or
     technological  or other  changes  shall  have  occurred  which  render  the
     Facilities uneconomic for use in the reasonable opinion of the Company.

(e)  In part,  at the  option of the  Company,  to the  extent of net  proceeds,
     received from any condemnation  award,  taking or sale as stated herein, if
     title to, or the temporary use of any portion of the Facilities  shall have
     been taken under the exercise of the power of eminent domain, or should any
     governmental  body or  agency  exercise  any  right  which  it may  have to
     purchase or designate a purchaser of the same,  or should such  property be
     sold to any governmental body or agency; provided the Company shall furnish
     to the City and the City Trustee a certificate of an  Independent  Engineer
     (as defined in the Loan Agreement) selected by the Company stating (i) that
     the  property  forming  the part of the  Facilities  that was taken by such
     condemnation,  taking  or  sale  is  not  essential  to  the  character  or
     significance  of the  Facilities,  or (ii)  that the  Facilities  have been
     restored to a condition  substantially  equivalent to their condition prior
     to the taking by such  condemnation,  taking or sale proceedings,  or (iii)
     that  improvements  have been acquired which are suitable for the operation
     of the Facilities as a qualified exempt facility.

(f)  In whole or in part,  at the option of the  Company at any time on or after
     August 1, 2011,  at a price  equal to the  principal  amount of the 2021 PC
     Bond so to be  redeemed  and accrued  interest  to the date of  redemption,
     together  with a premium  equal to a  percentage  of the  principal  amount
     thereof set forth under the heading "Redemption Premium" in the form of the
     2021 PC Bond hereinafter  recited, so long as the Company is not in default
     under the Loan Agreement or the 2021 PC Bond.

(g)  In the event all or substantially all of the mortgaged and pledged property
     under the Mortgage,  or all or substantially  all such property used in the
     business  of   generating,   manufacturing,   transporting,   transmitting,
     distributing or supplying  electricity,  should be taken by exercise of the
     power of eminent domain, or should any governmental body or agency exercise
     any right  which it may have to purchase  or  designate a purchaser  of the
     same, or should such property be sold to any  governmental  body or agency,
     the Company  shall be obligated to redeem the 2021 PC Bond  outstanding  as
     promptly as possible in  accordance  with  paragraph B of Section 69 of the
     Original Mortgage.

(h)  In the event that the Company is notified by the City  Trustee  that (i) an
     event of default under the City  Indenture has occurred and is  continuing,
     and (ii) the City Trustee has declared the principal of all the Series 1991
     Bonds then  outstanding  immediately  due and payable  pursuant to the City
     Indenture,  the Company  shall call for  redemption,  on a redemption  date
     selected by it not later than thirty (30) days  following the date on which
     such  notice is  mailed,  the 2021 PC Bond  outstanding,  and shall on such
     redemption date redeem the same; provided,  however,  that such requirement
     of redemption  shall be deemed waived,  if prior to the date fixed for such
     redemption of the 2021 PC Bond (x) such event of default is waived or cured
     as set forth in the City  Indenture,  or (y) there shall have  occurred any
     completed  default (as defined in the  Mortgage)  which affects any bond of
     any series  outstanding  under the Mortgage and which completed default has
     not been cured and made good prior to such  redemption  date,  it being the
     intent of this  proviso  that,  in lieu of such  right to  redemption,  the
     holder of the 2021 PC Bond  shall be  entitled  only to such  rights as are
     available to the holders of bonds of any other series outstanding under the
     Mortgage  in the  event  of  such  completed  default;  and in  case of any
     subsequent  occurrence or  continuance  of the events  described in (i) and
     (ii) of this  Section  2(h),  the  Company  shall have the same  obligation
     (subject to the same proviso) to redeem the 2021 PC Bond.

(i)  In the event the City  Trustee  notifies  the Company and the City that the
     interest  payable  on the Series  1991  Bonds held by persons  other than a
     "substantial user" or a "related person" as those terms are used in Section
     147(a)(2)  of the  Internal  Revenue  Code of 1986,  as  amended,  has been
     determined by a court of competent  jurisdiction  or a formal ruling of the
     Internal Revenue Service to be subject to federal income taxation by reason
     of a breach by the Company of any covenant,  agreement or representation in
     the  Loan  Agreement,  the  Company  shall  call  the  2021  PC  Bond  then
     outstanding  to be redeemed  within ninety (90) days after the date of such
     notice; provided, however, that such requirement of redemption,  whether in
     whole or in part  shall be deemed  waived  if,  prior to the date fixed for
     redemption of the 2021 PC Bond  pursuant to this Section 2(i),  there shall
     have  occurred any  completed  default (as defined in the  Mortgage)  which
     affects any bond of any series  outstanding  under the  Mortgage  and which
     completed default has not been cured and made good prior to such redemption
     date,  it being the intent of this proviso  that,  in lieu of such right to
     redemption,  the holder of the 2021 PC Bond shall be entitled  only to such
     rights  as are  available  to the  holders  of  bonds of any  other  series
     outstanding under the Mortgage in the event of such completed default;  but
     when any such  completed  default  shall have been cured and made good,  if
     interest  on the Series  1991  Bonds  shall  still be taxable as  described
     above,  the  Company  shall have the same  obligation  (subject to the same
     proviso)  to redeem  the 2021 PC Bond  within  ninety  (90) days  after the
     curing and making good of such completed  default;  provided further,  that
     the Company may call for redemption such portion of the 2021 PC Bond, which
     in the written  opinion of an attorney or firm of attorneys  of  nationally
     recognized standing on the subject of municipal bonds, would allow the City
     Trustee to redeem the Series  1991 Bonds in part,  which  redemption  would
     have  the  result  that the  interest  payable  on the  Series  1991  Bonds
     remaining outstanding after such redemption in part would not be subject to
     federal income  taxation in the hands of persons other  than a "substantial
     user" or  a "related person" as  those  terms are used in Section 147(a)(2)
     of the Internal Revenue Code of 1986, as amended.

     In case of  redemption  of the 2021 PC Bond in  whole  for the  purpose  of
prepayment under the Loan Agreement  pursuant to subsections (a), (b), (c), (d),
(f), (g), (h) or (i) above,  the amounts  payable upon redemption of the 2021 PC
Bond shall be a sum  sufficient,  together with other funds  deposited  with the
City  Trustee and  available  for such  purpose,  to pay the  principal  of (and
premium,  in the case of redemption  pursuant to (f) above), and interest on the
2021 PC Bond then  outstanding  and to pay all reasonable and necessary fees and
expenses of the City Trustee  accrued and to accrue through final payment of the
2021 PC Bond.

     In case of redemption in part pursuant to (e), (f) or (i) above, the amount
payable by the Company under this Forty-Third  Supplemental Indenture,  the Loan
Agreement  and the 2021 PC Bond shall be a sum  sufficient,  together with other
funds  deposited  with the Trustee and available  for such  purpose,  to pay the
principal of (and premium in the case of  prepayment  pursuant to (f) above) and
interest on the 2021 PC Bond so to be redeemed,  which sum  together  with other
funds  deposited  with the City Trustee and  available for such purpose shall be
sufficient to pay the principal of, premium,  if any, and interest on the Series
1991 Bonds and to pay all reasonable and necessary fees and expenses of the City
Trustee accrued and to accrue through such partial prepayment.

     The 2021 PC Bond and the Series 1991 Bonds shall be  redeemable at any time
within one hundred eighty (180) days following the event or events  described as
giving rise to an option of the Company to redeem them in subsections  (a), (b),
(c), (d) or (e) above.

     To exercise any of the options  granted to redeem the 2021 PC Bond in whole
or in part or to comply with any obligations to redeem the 2021 PC Bond in whole
or in part imposed in this Section 2, the Company  shall give written  notice of
the date of redemption  to the City  Trustee,  which date shall be not less than
thirty  (30) days nor more  than  sixty  (60)  days from the date the  notice is
mailed.  No further notice,  by publication or otherwise,  shall be required for
redemption  of the 2021 PC  Bond,  and the  requirements  of  Section  59 of the
Mortgage  for  notice by  newspaper  publication  shall not apply to the 2021 PC
Bond.

     At the option of the holder,  the 2021 PC Bond,  upon surrender  thereof at
the  office or agency of the  Company  in  Chicago,  Illinois,  together  with a
written  instrument of transfer in form approved by the Company duly executed by
the holder or by his duly authorized attorney,  shall be exchangeable for a like
aggregate principal amount of fully registered bonds of the same series of other
authorized denominations.

     The 2021 PC Bond will be  nontransferable  except to the City  Trustee  and
successors  thereto,  if  any,  and to the  Company.  To the  extent  that it is
transferable,  it is transferable by the registered holder thereof, in person or
by  attorney  duly  authorized  in  writing,  on the books of the Company at the
office or agency of the Company in the City of Chicago, Illinois, upon surrender
thereof  for  cancellation  at said  office and upon  presentation  of a written
instrument of transfer duly executed.  Thereupon, the Company shall issue in the
name of the transferee,  and the Trustee shall  authenticate and deliver,  a new
registered  2021 PC Bond,  in an  authorized  denomination,  of equal  principal
amount. Any such transfer shall be subject to the terms and conditions specified
in the Mortgage and in this Forty-Third Supplemental Indenture.

     The Company  shall not be required to transfer or exchange the 2021 PC Bond
for a period of ten (10) days next  preceding any interest  payment date of said
bond.

     Except as set forth  herein,  no charge  shall be made upon any transfer or
exchange  of any of the  2021 PC Bond  other  than for any tax or taxes or other
governmental charge required to be paid by the Company.

     The 2021 PC Bond shall be limited to an aggregate principal amount of Forty
Million  Dollars  ($40,000,000)  and shall be issued  under  the  provisions  of
Article VII of the Original Mortgage.

     SECTION 3. The 2021 PC Bond,  and the Trustee's  Certificate to be endorsed
thereon, shall be in the following forms, respectively:

                         [FORM OF FACE OF 2021 PC BOND]

     This First Mortgage Bond, 5.75% Series,  due 2021  (hereinafter  called the
"2021 PC Bond") is  not  transferable  except to a  successor  trustee under the
Indenture  of Trust  dated as of May 1, 1991,  between  the City of  Petersburg,
Indiana and National  City Bank of Indiana,  as successor to Merchants  National
Bank & Trust Company of Indianapolis, as the Trustee, or to Indianapolis Power &
Light Company.


                       INDIANAPOLIS POWER & LIGHT COMPANY

                   FIRST MORTGAGE BOND, 5.75% Series, Due 2021
                               Due August 1, 2021

No. 1                                                                $40,000,000

     INDIANAPOLIS  POWER & LIGHT COMPANY,  a corporation of the State of Indiana
(hereinafter called the "Company"), for  value  received, hereby promises to pay
National City Bank of Indiana,  as successor to Merchants  National Bank & Trust
Company of Indianapolis,  as the Trustee (hereinafter called the "City Trustee")
under the  Indenture  of Trust  between  the City of  Petersburg,  Indiana  (the
"City") and the City Trustee,  dated as of May 1, 1991 (the "City Indenture") or
registered assigns, on August 1, 2021, at the office of the Company, in the City
of  Indianapolis,  State of Indiana,  or if no such office is  maintained at the
time by the  Company,  then at the  office  or agency  of the  Company  for such
purpose  in the  City of  Chicago,  State of  Illinois,  Forty  Million  Dollars
($40,000,000) in lawful money of the United States of America, and to pay to the
registered  owner hereof interest  thereon from the first day of February or the
first day of August next  preceding  the date of this 2021 PC Bond  (except that
the first interest  payment  hereunder shall be made on February 1, 2002 for the
period from August 1, 2001 through  January 31,  2002),  at the rate of five and
seventy-five  hundreths  percent  (5.75%) per annum in like lawful money at said
office or agency on  February 1 and August 1 in each year,  until the  Company's
obligation  with  respect  to the  payment  of such  principal  shall  have been
discharged.  The  interest  payable  hereunder on February 1 or August 1 will be
paid to the  registered  owner of this  2021 PC Bond at or  before  the close of
business on such dates, or if such date shall be a Saturday,  Sunday, holiday or
a day on which banking  institutions  in the City of Indianapolis or the city of
any paying  agents  are  authorized  by law to close,  on or before the close of
business on the next succeeding business day on which such banking  institutions
are open for business.

     REFERENCE IS MADE TO THE FURTHER  PROVISIONS OF THIS 2021 PC BOND SET FORTH
ON THE REVERSE HEREOF. SUCH FURTHER PROVISIONS SHALL, FOR ALL PURPOSES, HAVE THE
SAME EFFECT AS THOUGH FULLY SET FORTH IN THIS PLACE.

     No recourse shall be had for the payment of the principal of or interest on
this  2021 PC Bond  against  any  incorporator  or any past,  present  or future
subscriber to the capital stock, stockholder, officer or director of the Company
or of any  predecessor or successor  corporation,  as such,  either  directly or
through the Company or any predecessor or successor corporation,  under any rule
of law,  statute,  or  constitution  or by the  enforcement of any assessment or
otherwise,  all such  liability  of  incorporators,  subscribers,  stockholders,
officers and directors,  as such,  being waived and released by the terms of the
Mortgage, as herein defined.

     This 2021 PC Bond shall not become  obligatory until American National Bank
and Trust Company of Chicago, the Trustee under the Mortgage, as herein defined,
or its successor thereunder,  shall have signed the form of certificate endorsed
hereon.

     IN WITNESS WHEREOF, INDIANAPOLIS POWER & LIGHT COMPANY has caused this 2021
PC Bond to be signed in its name by its President or one of its Vice Presidents,
by his signature or a facsimile  thereof,  and its corporate  seal to be affixed
hereon,  attested by its Secretary or one of its Assistant  Secretaries,  by his
signature or a facsimile thereof.

                                            INDIANAPOLIS POWER & LIGHT
                                                     COMPANY


Dated_______________                        By_______________________________
                                                                       President

Attest:

By_____________________________
                  Secretary


                 [FORM OF TRUSTEE'S CERTIFICATE ON 2021 PC BOND]

                              Trustee's Certificate

     This 2021 PC Bond is one of the  bonds,  of the series  herein  designated,
provided  for in the  within-mentioned  Mortgage  and  Forty-Third  Supplemental
Indenture thereto.

                                            AMERICAN NATIONAL BANK AND
                                            TRUST COMPANY OF CHICAGO
                                                        Trustee



                                            By________________________________
                                                     Authorized Signature


                     [FORM OF REVERSE SIDE OF 2021 PC BOND]
                       INDIANAPOLIS POWER & LIGHT COMPANY
                   FIRST MORTGAGE BOND, 5.75% Series, due 2021
                               Due August 1, 2021

     This 2021 PC Bond is one of an issue of bonds of the  Company,  issuable in
series,  and is one of a series known as its First Mortgage Bonds, 5.75% Series,
due 2021 (herein  called  the "2021 PC Bond")  limited  in  aggregate  principal
amount to Forty Million Dollars  ($40,000,000)  and established by a Forty-Third
Supplemental  Indenture  dated as of August  1,  2001,  all bonds of all  series
issued and to be issued under and equally secured (except insofar as any sinking
or other fund,  established  in accordance  with the  provisions of the Mortgage
hereinafter  mentioned,  may  afford  additional  security  for the bonds of any
particular  series)  by a Mortgage  and Deed of Trust,  dated as of May 1, 1940,
executed by the Company to American  National Bank and Trust Company of Chicago,
as the Trustee (which Mortgage and Deed of Trust as supplemented and modified by
all  supplemental   indentures  thereto  is  hereinafter   referred  to  as  the
"Mortgage"),  to  which  Mortgage  reference  is made for a  description  of the
property  mortgaged  and  pledged,  the nature and extent of the  security,  the
rights of the  bearers  or  registered  owners of the bonds in  respect  of such
security,  the duties and immunities of the Trustee and the terms and conditions
upon which the bonds are secured.

     This  2021 PC Bond  evidences  and  secures  a loan made by the City to the
Company, pursuant to a Loan Agreement, dated as of May 1, 1991, between the City
and the Company (the "Loan Agreement").  In order to obtain funds for such loan,
the City issued Forty  Million  Dollars  ($40,000,000)  principal  amount of its
Pollution  Control Refunding Revenue Bonds,  Series 1991  (Indianapolis  Power &
Light  Company  Project)  (the  "City  Bonds")  under and  pursuant  to the City
Indenture.  The City Bonds are  payable  from  payments  made by the  Company of
principal of, premium, if any, and interest on this 2021 PC Bond and from moneys
in the Bond Fund created under the City Indenture. The obligation of the Company
to pay the  principal  of,  premium,  if any,  and interest on this 2021 PC Bond
shall  be  discharged  to the  extent  that any  moneys  in said  Bond  Fund are
available  for  payments on the City Bonds and are directed by the Company to be
applied thereto, all as provided in the Forty-Third Supplemental Indenture.

     This 2021 PC Bond is not  subject  to  redemption  prior to August 1, 2011,
except as provided in Section 2 of the Forty-Third  Supplemental  Indenture,  to
which reference is made for full description of redemption provisions.

     This 2021 PC Bond is subject to  redemption in whole or in part at any time
on or after August 1, 2011,  at the option of the Company,  upon at least thirty
(30)  days  prior  notice,  all  as  provided  in the  Forty-Third  Supplemental
Indenture, at a price equal to the principal amount of the 2021 PC Bond so to be
redeemed and accrued interest to the date of redemption, together with a premium
equal to a percentage of the principal  amount thereof set forth below under the
heading "Redemption Premium":

         If Redeemed During the Twelve Months
         Ending With the Thirty-first Day                     Redemption
         Of July of the Year Stated                           Premium
         ---------------------------------------------------------------
         2012                                                 2.0%
         2013                                                 1.5%
         2014                                                 1.0%
         2015                                                 0.5%

and without premium if redeemed after July 31, 2015.

     With the  consent  of the  Company  and to the extent  permitted  by and as
provided in the Mortgage,  the rights and  obligations  of the Company and/or of
the holders of the bonds and/or  coupons  and/or the terms and provisions of the
Mortgage and/or any instruments  supplemental thereto may be modified or altered
by affirmative vote of the holders of at least sixty-six and two-thirds  percent
(66-2/3%)  in principal  amount of the bonds  affected by such  modification  or
alteration then outstanding  under the Mortgage  (excluding  bonds  disqualified
from  voting by reason of the  Company's  interest  therein as  provided  in the
Mortgage);  provided that no such  modification  or alteration  shall permit the
extension of the maturity of the principal of this 2021 PC Bond or the reduction
in the rate of interest hereon or any other modification in the terms of payment
of such  principal  or interest  without the consent of the holder  hereof.  The
principal  hereof may be  declared  or may become due and  payable  prior to the
stated date of maturity hereof, on the conditions, in the manner and at the time
set forth in the Mortgage,  upon the occurrence of a completed default as in the
Mortgage provided.

     No reference herein to the Mortgage,  and no provision of this 2021 PC Bond
or of the Mortgage,  shall alter or impair the obligation of the Company,  which
is  absolute  and  unconditional,  to  pay,  subject  to the  provisions  of the
Forty-Third  Supplemental Indenture,  the principal of, and premium, if any, and
interest on this 2021 PC Bond at the place,  at the respective  times and at the
rate and the manner herein prescribed.

     This 2021 PC Bond is issuable only in full  registered form without coupons
in denominations  of Five Thousand Dollars ($5,000) and any larger  denomination
which is a whole multiple of Five Thousand Dollars ($5,000).

     This 2021 PC Bond will be  nontransferable  except to the City  Trustee and
successors  thereto,  if  any,  and to the  Company.  To the  extent  that it is
transferable,  it is transferable by the registered holder thereof, in person or
by  attorney  duly  authorized  in  writing,  on the books of the Company at the
office or agency of the Company in the City of Chicago, Illinois, upon surrender
thereof  for  cancellation  at said  office and upon  presentation  of a written
instrument of transfer duly executed.  Thereupon, the Company shall issue in the
name of the transferee,  and the Trustee shall  authenticate and deliver,  a new
registered  2021 PC Bond,  in an  authorized  denomination,  of equal  principal
amount. Any such transfer shall be subject to the terms and conditions specified
in the Mortgage and in the Forty-Third Supplemental Indenture.

     Upon  redemption of this 2021 PC Bond in part and surrender  thereof at the
office or agency of the Company in Chicago,  Illinois, for exchange, the Trustee
shall  authenticate  and deliver a new registered  2021 PC Bond in an authorized
denomination and principal  amount equal to the reduced  principal amount due on
that series after such partial redemption.

                           [END OF 2021 PC BOND FORM]


     SECTION 4. Until the 2021 PC Bond in definitive form is ready for delivery,
the Company  may  execute,  and upon its  request in writing  the Trustee  shall
authenticate  and deliver,  in lieu thereof,  a fully registered 2021 PC Bond in
temporary  form, as provided in Section 15 of the Original  Mortgage.  Such bond
may, in lieu of the statement of the specific  redemption  prices required to be
set  forth  in  such  bond in  definitive  form,  include  a  reference  to this
Forty-Third Supplemental Indenture for a statement of such redemption prices.

     SECTION  5.  The  Company  covenants  and  agrees  that  it will  duly  and
punctually pay to the holder of the 2021 PC Bond the principal thereof, premium,
if any,  and  interest  on said bond at the  dates  and place and in the  manner
mentioned therein; provided, however, that:

          (a) the  obligation  of the  Company  to pay  the  principal  of,  and
     premium,  if any, and interest on the 2021 PC Bond shall be  discharged  to
     the extent that any moneys in the Bond Fund  created  under and pursuant to
     the City  Indenture  are  available for the payment of the principal of, or
     premium,  if any, or interest on the Series 1991 Bonds and are  directed by
     the Company to be applied to the payment  thereof in the manner provided in
     the City  Indenture  on or prior to the  dates  on  which  the  Company  is
     required to pay the  principal  of, or premium,  if any, or interest on the
     2021 PC Bond.

          (b) Except as  otherwise  provided  in this  Section 5, the  principal
     amount of any Series 1991 Bond acquired by the Company and delivered to the
     City  Trustee,  or acquired by the City  Trustee  and  cancelled,  shall be
     credited  against the obligation of the Company to pay the principal of the
     2021 PC Bond.

As the principal of,  premium,  if any, and interest on the 2021 PC Bond is paid
or deemed paid in full, and upon its receipt by the Company,  such bond shall be
delivered to the Trustee for cancellation. The Company shall promptly inform the
Trustee  of all  payments  made  and  credits  availed  of with  respect  to its
obligations  on the 2021 PC Bond. The Trustee shall not be required to recognize
any payment made or credit availed of with respect to any 2021 PC Bond unless it
has received (a) the bond for cancellation by it, or (b) a certificate signed by
a duly  authorized  officer of the City  Trustee  specifying  the amount of such
payment or credit and the  principal  amount of the 2021 PC Bond with respect to
which the  payment  or credit  was  applied.  In the  absence  of receipt by the
Trustee  of any 2021 PC Bond,  any such  certificate  shall be  controlling  and
conclusive.

     SECTION 6. The  covenant  of the  Company to make  annual  payments  to the
Trustee for a Maintenance and Improvement Fund as contained in Section 41 of the
Original  Mortgage and in the first twenty-four  Supplemental  Indentures to the
Original  Mortgage creating the several series of First Mortgage Bonds presently
outstanding under such Supplemental Indentures shall not apply to nor be for the
benefit of the 2021 PC Bond,  and the Company  reserves  the right,  without any
consent of, or other action by, the holder of the 2021 PC Bond, to amend, modify
or delete the  provisions  of the  Mortgage  relating  to such  Maintenance  and
Improvement Fund and by acceptance of the 2021 PC Bond the holder thereof waives
any right or  privilege  so to consent  or take any other  action  with  respect
thereto.

     SECTION 7. The Company  covenants  that,  so long as the 2021 PC Bond shall
remain  outstanding,  it will comply with all of the provisions of Section 47 of
the Original  Mortgage,  including the provisions with respect to limitations on
dividends and distributions and the purchase and redemption of stock.

     SECTION 8. The Trustee hereby accepts the trusts herein declared,  provided
and created and agrees to perform the same upon the terms and conditions  herein
and in the Mortgage set forth and upon the following terms and conditions:

     The  recitals  contained  herein  and in the  bonds  shall  be taken as the
statements  of the  Company and the Trustee  assumes no  responsibility  for the
correctness of the same. The Trustee makes no representations as to the validity
or adequacy  of the  security  afforded  hereby,  or as to the  validity of this
Forty-Third Supplemental Indenture or of the 2021 PC Bond issued hereunder.

     SECTION 9. Whenever in this  Forty-Third  Supplemental  Indenture either of
the  parties  hereto  is  named or  referred  to,  this  shall,  subject  to the
provisions  of Article XVII of the Original  Mortgage,  be deemed to include the
successors or assigns of such party,  and all the  covenants  and  agreements in
this  Forty-Third  Supplemental  Indenture  contained  by or on  behalf  of  the
Company, or by or on behalf of the Trustee,  shall,  subject as aforesaid,  bind
and inure to the  benefit  of the  respective  successors  and  assigns  of such
parties, whether so expressed or not.

     SECTION 10. Nothing in this Forty-Third Supplemental Indenture expressed or
implied,  is intended or shall be construed  to confer upon,  or to give to, any
person,  co-partnership  or  corporation,  other than the parties hereto and the
holders of the bonds and  coupons  outstanding  under the  Mortgage,  any right,
remedy, or claim under or by reason of this Forty-Third  Supplemental  Indenture
or any  covenant,  condition  or  stipulation  hereof;  and all  the  covenants,
conditions,   stipulations,   promises  and   agreements  in  this   Forty-Third
Supplemental Indenture contained by or on behalf of the Company shall be for the
sole and exclusive benefit of the parties hereto and of the holders of the bonds
and of the coupons outstanding under the Mortgage.

     SECTION 11. The Company  covenants  that all of the terms,  provisions  and
conditions  of the  Mortgage  shall be  applicable  to the  2021 PC Bond  issued
hereunder,  except as herein  otherwise  provided and except insofar as the same
may be  inconsistent  with  the  provisions  of  this  Forty-Third  Supplemental
Indenture.

     SECTION 12. This Forty-Third  Supplemental  Indenture is dated as of August
1, 2001,  although  executed and  delivered  on the date of the  acknowledgement
hereof by the Trustee;  and shall be  simultaneously  executed and  delivered in
several counterparts,  and all such counterparts executed and delivered, each as
an original, shall constitute but one and the same instrument.

     IN WITNESS WHEREOF,  INDIANAPOLIS POWER & LIGHT COMPANY, party of the first
part, has caused its corporate name to be hereunto  affixed and this  instrument
to be signed and  acknowledged  by its  President or a  Vice-President,  and its
corporate  seal  to be  hereto  affixed  and  attested  by its  Secretary  or an
Assistant Secretary, for and in its behalf, and AMERICAN NATIONAL BANK AND TRUST
COMPANY  OF  CHICAGO,  party of the  second  part,  as  Trustee,  has caused its
corporate  name to be  hereunto  affixed  and this  instrument  to be signed and
acknowledged  by one of its  Authorized  Officers,  and its corporate seal to be
hereto  affixed and attested by one of its  Authorized  Officers,  all as of the
day, month and year first above written.


                                            INDIANAPOLIS POWER & LIGHT
                                            COMPANY,


                                            By /s/WILLIAM H. HENLEY
                                              ---------------------------------
(SEAL)                                         WILLIAM H. HENLEY,
                                               President
Attest:

By: /s/WILLIAM R. DODDS
   -----------------------------
    WILLIAM R. DODDS,
    Secretary
                                            AMERICAN NATIONAL BANK AND
                                            TRUST COMPANY OF CHICAGO


                                            By /s/ROBERT M. SELANGOWSKI
                                              ---------------------------------
                                               ROBERT M. SELANGOWSKI,
                                               Authorized Officer

Attest:
                                                                        (SEAL)

By: /s/F. HENRY KLESCHEN
   -------------------------------
    F. HENRY KLESCHEN,
    Authorized Officer
<PAGE>


STATE OF INDIANA  )
                  )  SS:
COUNTY OF MARION  )

     On this 26th day of July,  in the year 2001,  before me, a Notary Public in
and for the County  and State  aforesaid,  personally  came  WILLIAM H.  HENLEY,
President  and  WILLIAM  R.  DODDS,  Secretary,  of  Indianapolis  Power & Light
Company,  one of the corporations  described in and which executed the foregoing
instrument,  to me  personally  known  and  known  to me  personally  to be such
President  and  Secretary,  respectively.  Said WILLIAM H. HENLEY and WILLIAM R.
DODDS being by me severally  duly sworn did depose and say that the said WILLIAM
H.  HENLEY  resides  in Marion  County,  Indiana  and the said  WILLIAM R. DODDS
resides in Fulton County, Illinois; that said WILLIAM H. HENLEY is President and
said WILLIAM R. DODDS is Secretary of said  Indianapolis  Power & Light Company;
that each of them knows the corporate  seal of said  corporation;  that the seal
affixed to said  instrument  and  bearing the name of said  corporation  is such
corporate  seal;  that it was so affixed by order of the Board of  Directors  of
said  corporation;  and that each of them signed his name thereto by like order;
and each of them acknowledged the execution of said instrument on behalf of said
corporation to be his free and voluntary act and deed and the free and voluntary
act and deed of said corporation, for the uses and purposes therein set forth.

     IN WITNESS  WHEREOF,  I have  hereunto  set my hand and affixed my official
seal this 26th day of July, 2001.


                                                     /s/DINAH L. KIRKHAM
                                                     ---------------------------
                                                     DINAH L. KIRKHAM,
                                                              Notary Public

My Commission Expires:
         June 23, 2008

My County of Residence is:
         Johnson
                                                              (NOTARIAL SEAL)
<PAGE>


STATE OF ILLINOIS )
                  )  SS:
COUNTY OF COOK    )

     On this 26th day of July,  in the year 2001,  before me, a Notary Public in
and for the County and State  aforesaid,  personally came ROBERT M.  SELANGOWSKI
and F. HENRY KLESCHEN,  Authorized  Officers of American National Bank and Trust
Company of Chicago, one of the corporations  described in and which executed the
foregoing  instrument,  to me personally  known and known to me personally to be
such  Authorized  Officers.  Said ROBERT M.  SELANGOWSKI  and F. HENRY KLESCHEN,
being  by me  severally  sworn  did  depose  and say that  the  said  ROBERT  M.
SELANGOWSKI  resides in Lansing,  Illinois,  and that the said F. HENRY KLESCHEN
resides in Evanston, Illinois; that said ROBERT M. SELANGOWSKI and said F. HENRY
KLESCHEN,  are  Authorized  Officers of said  American  National  Bank and Trust
Company  of  Chicago;  that  each  of  them  knows  the  corporate  seal of said
corporation;  that the seal affixed to said  instrument  and bearing the name of
said  corporation is such corporate seal; that it was so affixed by authority of
the Board of  Directors of said  corporation;  that each of them signed his name
thereto by like authority;  and each of them  acknowledged the execution of said
instrument  on behalf of said  corporation  to be his free and voluntary act and
deed and the free and voluntary act and deed of said  corporation,  for the uses
and purposes therein set forth.

     IN WITNESS  WHEREOF,  I have  hereunto  set my hand and affixed my official
seal this 26th day of July, 2001.


                                                     /s/KATHLEEN A. WHITE
                                                     -------------------------
                                                     KATHLEEN A. WHITE,
                                                      Notary Public

My Commission Expires:
         February 9, 2002
My County of Residence is:
         Cook

(NOTARIAL SEAL)


                         This instrument was prepared by
                                 BRIANE M. HOUSE

<PAGE>


                                 RECORDING DATA

          Forty-Third Supplemental Indenture Dated as of August 1, 2001

                                                     Instrument      Recording
County            Record            Page             No.               Date
--------------------------------------------------------------------------------

Bartholomew       ---               ---              200100009896      7/27/2001
Boone             ---               ---              0109135           7/27/2001
Daviess           ---               ---              01-3596           7/27/2001
Gibson            ---               ---              200100005588      7/27/2001
Greene            Inden. Bk. 27     17-43            200100004074      7/27/2001
Hamilton          ---               ---              200100046495      7/27/2001
Hancock           ---               ---              0110422           7/27/2001
Hendricks         Mtg. Rec. 261     708-734          200100021807      7/27/2001
Johnson           ---               ---              2001-022709       7/27/2001
Knox              Mtg. Rec. 554     516-542          5735              7/27/2001
Madison           ---               ---              200117484         7/27/2001
Marion            ---               ---              2001-0130008      7/27/2001
Monroe            ---               ---              2001015471        7/27/2001
Morgan            ---               ---              20111809          7/27/2001
Owen              Mtg. Rec. IC      464-522          138714            7/27/2001
Pike              Mtg. Rec. 306     242-268          01-1783           7/27/2001
Putnam            ---               ---              2001005421        7/27/2001
Shelby            ---               ---              0106330           7/27/2001
Sullivan          Mtg. Rec. 258     977              012791            7/27/2001
Switzerland       Mtg. Rec. 133     25               8806              7/27/2001

<PAGE>

                                                                  Exhibit 4.4.14

                                                                [CONFORMED COPY]
================================================================================





                          INDIANAPOLIS POWER & LIGHT COMPANY
                                          TO
                           AMERICAN NATIONAL BANK AND TRUST
                                  COMPANY OF CHICAGO
                                                   Trustee


                                      ----------

                          Forty-Fourth Supplemental Indenture

                                      ----------



                              Dated as of August 1, 2001


                          ESTABLISHING FIRST MORTGAGE BONDS,
                                5.90% Series, Due 2024



================================================================================


<PAGE>
                                       ii




                                  TABLE OF CONTENTS*

                                          of
                          FORTY-FOURTH SUPPLEMENTAL INDENTURE
                                          of
                          INDIANAPOLIS POWER & LIGHT COMPANY

                                                                            Page

PARTIES........................................................................1
RECITALS ......................................................................1
SECTION 1       Granting clauses...............................................3
                    Part I   Electric Distributing Systems.....................4
                    Part II Reserved...........................................4
                    Part III Indeterminate Permits and Franchises..............4
                    Part IV  Other Property....................................5
                    General and after-acquired title...........................6
SECTION 2       Designation of Forty-Fourth series of bonds and kind and
                    denominations thereof .....................................6
                Designation of Company or American National Bank and Trust
                    Company of Chicago as paying agent.........................6
                Purpose of bonds...............................................7
                Redemption of bonds............................................7
                Exchange of bonds.............................................12
                Transfer of bonds.............................................12
                Series limited to $20,000,000.................................13
SECTION 3       Form of fully registered bond.................................13
                Form of Trustees certificate on bonds........................15
SECTION 4       Temporary bonds...............................................19
SECTION 5       Payment of principal and interest; credits....................19
SECTION 6       Annual Payments for Maintenance and Improvement Fund..........20
SECTION 7       Compliance with Section 47 of Original Mortgage with
                   respect to dividend restrictions...........................20
SECTION 8       Acceptance of trusts by Trustee and conditions of
                   Acceptance.................................................20
-------------------
*    Table of Contents is not part of the  Forty-Fourth  Supplemental  Indenture
     and should not be considered  such. It is included herein only for purposes
     of convenient reference.




<PAGE>

                                                                            Page

SECTION 9         Successors and assigns......................................20
SECTION 10        Limitation of rights hereunder..............................21
SECTION 11        Compliance with terms, provisions and
                        conditions of Mortgage................................21
SECTION 12        Execution in counterparts...................................21

TESTIMONIUM...................................................................22
SIGNATURES AND SEALS..........................................................22
ACKNOWLEDGEMENTS..............................................................22

<PAGE>


     THIS  FORTY-FOURTH  SUPPLEMENTAL  INDENTURE,  dated as of August  1,  2001,
between  INDIANAPOLIS  POWER & LIGHT  COMPANY,  a  corporation  of the  State of
Indiana,  hereinafter  sometimes  called the "Company," party of the first part,
and AMERICAN  NATIONAL  BANK AND TRUST  COMPANY OF CHICAGO,  a national  banking
association,  as Trustee,  hereinafter  sometimes called the "Trustee," party of
the second part;

     Whereas, the Company by a Mortgage and Deed of Trust (hereinafter sometimes
called  the  "Original  Mortgage"  when  referred  to as  existing  prior to any
supplement thereto or modification  thereof, and the "Mortgage" when referred to
as now or heretofore supplemented and modified) dated as of May 1, 1940, made to
said American National Bank and Trust Company of Chicago,  as Trustee, to secure
the  payment of the bonds  issued from time to time under the  Mortgage  for the
purposes of and subject to the  limitations  specified in the  Mortgage,  and to
secure the  performance  of the  covenants  therein  contained,  conveyed to the
Trustee  thereunder  upon certain  trusts,  terms and  conditions,  and with and
subject to certain provisos and covenants  therein  contained,  all and singular
the  property,  rights and  franchises  which the  Company  then owned or should
thereafter  acquire,  excepting the property  expressly excepted by the terms of
the Original Mortgage or any indenture  supplemental  thereto, to which Mortgage
reference is hereby made for greater certainty; and

     WHEREAS,  the  Original  Mortgage  has been  supplemented  and  modified by
supplemental  indentures  dated as of May 1, 1942, as of February 1, 1948, as of
April 1, 1949, as of October 1, 1949 (two),  as of February 1, 1951, as of March
1, 1953,  as of June 1, 1956,  as of March 1, 1958, as of October 1, 1960, as of
August 1, 1964, as of April 1, 1966, as of May 1, 1967, as of May 1, 1968, as of
October 1, 1970,  as of March 1, 1972,  as of March 15, 1973, as of February 15,
1974, as of August 15, 1974, as of September 15, 1975, as of June 1, 1976, as of
July 1, 1976,  as of August 1, 1977,  as of September  1, 1978,  as of August 1,
1981 (two),  as of November 1, 1983,  as of November 1, 1984,  as of December 1,
1984,  as of September 1, 1985, as of October 1, 1986, as of June 1, 1989, as of
August 1, 1989,  as of October 15,  1991,  as of August 1, 1992,  as of April 1,
1993, as of October 1, 1993 (two),  as of February 1, 1994 (two),  as of January
15, 1995, as of October 1, 1995 and as of August 1, 2001; and

     WHEREAS,  Section 8 of the Original Mortgage provides,  among other things,
that the form of each series of bonds  (other  than the initial  issue of bonds)
issued  thereunder  shall be  established by an indenture  supplemental  thereto
authorized by resolution of the Board of Directors of the Company,  and that the
form of each series, as established by the Board of Directors, shall specify the
descriptive  title of the bonds and various  other terms  thereof,  and may also
contain such other  provisions as the Board of Directors may, in its discretion,
cause to be inserted therein expressing or referring to the terms and conditions
upon which such bonds are to be issued and secured  under the Original  Mortgage
or any indenture supplemental thereto or in modification thereof; and

     WHEREAS, the Company entered into a Loan Agreement, dated as of December 1,
1994  (hereinafter  called the "Loan  Agreement")  with the City of  Petersburg,
Indiana (the "City"),  in order to obtain funds for the financing of solid waste
disposal facilities acquired, constructed, installed and equipped by the Company
(the  "Facilities")  at the  Petersburg  Generating  Station  Units 1 and 2 (the
"Plant")  and the  issuance of  $20,000,000  aggregate  principal  amount of the
City's Solid Waste Disposal Revenue Bonds,  Series 1994A  (Indianapolis  Power &
Light Company Project) (the "Bonds"); and

     WHEREAS, the Company has elected to convert the applicable interest rate on
the Bonds to the Long Term Rate  effective as of August 1, 2001, and pursuant to
the Loan Agreement,  the Company has agreed to issue a series of its bonds under
the Mortgage and this Forty-Fourth  Supplemental  Indenture in order to evidence
and secure its indebtedness under the Loan Agreement; and

     WHEREAS,  the  Company  now  desires  to  provide  for  the  establishment,
execution,  authentication  and delivery under the Mortgage of bonds of a series
to be known as its "First Mortgage Bonds,  5.90% Series, due 2024" (the bonds of
said  series  being  hereinafter  sometimes  referred to as the "2024 PC Bond"),
limited  to  the  aggregate   principal   amount  of  Twenty   Million   Dollars
($20,000,000); and

     WHEREAS,  all  things  necessary  to make  the  2024  PC  Bond  hereinafter
described,  when duly executed by the Company and authenticated and delivered by
the Trustee, a valid,  binding and legal obligation of the Company,  and to make
this  Forty-Fourth   Supplemental   Indenture  a  valid  and  binding  agreement
supplemental to the Original Mortgage, have been done and performed; and

     WHEREAS,  the  execution  and delivery by the Company of this  Forty-Fourth
Supplemental  Indenture,  and the  terms  of the 2024 PC Bond,  have  been  duly
authorized by the Board of Directors of the Company by  appropriate  resolutions
of said Board; and

     WHEREAS,  it is provided in and by the Original  Mortgage  that the Company
will execute and deliver such  further  instruments  and do such further acts as
may be  necessary  or proper to carry out more  effectively  the purposes of the
Mortgage,  and to make  subject  to the lien  thereof  any  property  thereafter
acquired and intended to be subject to the lien thereof; and

     WHEREAS,  the Company has,  since the date of execution and delivery of the
Original  Mortgage,   purchased  and  acquired  property  and  desires  by  this
Forty-Fourth  Supplemental  Indenture specifically to convey to the Trustee such
property  for the better  protection  and security of the bonds issued and to be
issued under the Original Mortgage, or any indenture supplemental thereof;

     NOW,  THEREFORE,  THIS INDENTURE  WITNESSETH  that, in consideration of the
premises and of the acceptance or purchase of the 2024 PC Bond by the registered
owners thereof, and of the sum of one dollar,  lawful money of the United States
of America,  to the Company duly paid by the Trustee at or before the  execution
and delivery of this Forty-Fourth Supplemental Indenture, the receipt whereof is
hereby  acknowledged,  the Company and the Trustee,  respectively,  have entered
into, executed and delivered this Forty-Fourth  Supplemental Indenture,  for the
uses and purposes hereinafter expressed, that is to say:

     SECTION 1. The Company has granted,  bargained,  sold, released,  conveyed,
assigned, transferred,  mortgaged, pledged, set over and confirmed, and by these
presents does grant, bargain, sell, release, convey, assign, transfer, mortgage,
pledge,  set over and confirm (subject,  however,  to permitted  encumbrances as
defined in the Original  Mortgage),  unto said American  National Bank and Trust
Company of Chicago,  as Trustee,  as herein provided,  and its successors in the
trusts declared in the Original Mortgage and herein, all of the property,  real,
personal  and mixed,  tangible  and  intangible,  of every kind,  character  and
description  which the Company has acquired  since the execution and delivery of
the  Original  Mortgage and now owns  (except  property,  rights and assets of a
character  similar to that  excluded from the lien and operation of the Mortgage
by the Granting  Clauses of the Original  Mortgage,  which property,  rights and
assets are excluded  from the lien and  operation  of the  Mortgage  only to the
extent  provided  therein),   including,  but  without  otherwise  limiting  the
generality of the foregoing,  the following  described  property situated within
the State of Indiana:

                                     PART I.
                         ELECTRIC DISTRIBUTING SYSTEMS.

     All electric  distributing  systems of the Company acquired by it after May
1, 1940,  the date of the  Original  Mortgage,  and  located in the  Counties of
Bartholomew,  Boone, Daviess,  Gibson,  Greene,  Hamilton,  Hancock,  Hendricks,
Johnson,  Knox, Madison,  Marion,  Monroe,  Morgan, Owen, Pike, Putnam,  Shelby,
Sullivan and Switzerland,  State of Indiana;  and any additions to or extensions
of any  such  systems,  together  with  the  buildings,  erections,  structures,
transmission lines, power stations, sub-stations,  engines, boilers, condensers,
pumps, turbines,  machinery,  tools, conduits,  manholes,  insulators,  dynamos,
motors,  lamps, cables,  wires, poles,  towers,  cross-arms,  piers,  abutments,
switchboard   equipment,    meters,    appliances,    instruments,    apparatus,
appurtenances,  maps, records, ledgers, contracts, facilities and other property
or  equipment  used or provided  for use in  connection  with the  construction,
maintenance, repair and operation thereof; together also with all of the rights,
privileges, rights-of-way,  franchises, licenses, grants, liberties, immunities,
ordinances, permits and easements of the Company in respect of the construction,
maintenance, repair and operation of said systems.

                                    PART II.
                                   [Reserved]


                                    PART III.
                      INDETERMINATE PERMITS AND FRANCHISES.

     All indeterminate  permits,  franchises,  ordinances,  licenses,  and other
authorizations by or from any state, county, municipality, or other governmental
authority,  acquired by the Company after May 1, 1940,  the date of the Original
Mortgage, including particularly,  but not limited to, any indeterminate permits
under the Public Service  Commission  Act of the State of Indiana,  and all Acts
amendatory thereof and supplemental  thereto,  and all right, title and interest
therein now owned by the Company, and all renewals, extensions and modifications
of said  indeterminate  permits,  franchises,  ordinances,  licenses,  and other
authorizations,  and  of  the  indeterminate  permits,  franchises,  ordinances,
licenses,  and  other  authorizations  referred  to in Part VII of the  Granting
Clauses of the Original Mortgage.

<PAGE>

                                    PART IV.
                                 OTHER PROPERTY.

     All other  property,  whether  real,  personal or mixed  (except any in the
Mortgage expressly excepted), now owned by the Company and wheresoever situated,
including  (without in anywise  limiting or impairing by the  enumeration of the
same the  scope  and  intent  of the  foregoing  or of any  general  description
contained in the  Mortgage) all lands,  flowage  rights,  water rights,  flumes,
raceways,  dams,  rights-of-way  and roads;  all plants  for the  generation  of
electricity by water, steam and/or other power, power houses, telephone systems,
water systems, power plants, hot water plants, sub-stations, transmission lines,
distribution systems, bridges,  culverts and tracts; all offices,  buildings and
structures and the equipment thereof; all machinery,  engines, boilers, dynamos,
machines,   regulators,   meters,  transformers,   generators  and  motors;  all
appliances whether electrical,  gas or mechanical,  conduits,  cables and lines;
all pipes whether for water, and power, or other purposes;  all mains and pipes,
service  pipes,   fittings,   valves  and  connections,   poles,  wires,  tools,
implements,   apparatus,  furniture  and  chattels;  all  municipal  franchises,
indeterminate  permits,  and other  permits;  all lines for the  transportation,
transmission and/or distribution of electric current, and power or water for any
purpose,  including  towers,  poles,  wires,  cables,  pipes,  conduits  and all
apparatus  for use in  connection  therewith;  all real estate,  lands,  leases,
leaseholds; all contracts,  whether heat, light, power, water or street lighting
contracts;  all  easements,   servitudes,  licenses,  permits,  rights,  powers,
franchises,  privileges,  rights-of-way  and other rights in or relating to real
estate  or the  occupancy  of the  same and  (except  as  hereinafter  or in the
Mortgage expressly excepted) all the right, title and interest of the Company in
and to all other  property  of any kind or nature  appertaining  to and/or  used
and/or  occupied  and/or  enjoyed in connection  with any property  hereinbefore
described or referred to;

     TOGETHER   WITH  all  and  singular  the   tenements,   hereditaments   and
appurtenances  belonging or in anywise appertaining to the aforesaid property or
any part thereof,  with the reversion and  reversions,  remainder and remainders
and  (subject to the  provisions  of Section 64 of the Original  Mortgage),  the
tolls, rents, revenues,  issues, earnings,  income, product and profits thereof,
and all the estate,  right,  title and interest and claim whatsoever,  at law as
well as in equity,  which the Company now has or may hereafter acquire in and to
the aforesaid property, indeterminate permits, franchises,  ordinances, licenses
and other authorizations and every part and parcel thereof.

     SECTION  2.  There  shall be and is hereby  established  a series of bonds,
limited in aggregate principal amount to Twenty Million Dollars ($20,000,000) to
be issued under and secured by the Mortgage, to be designated "5.90% Series, due
2024",  each of which  shall also bear the  descriptive  title  "First  Mortgage
Bonds"; said bonds shall mature on DECEMBER 1, 2024, and shall be issued only as
fully  registered  bonds without  coupons in the  denomination  of five thousand
dollars and any larger  denomination  which is a whole multiple of five thousand
dollars;  they shall bear interest  from the  beginning of the current  interest
period during which each bond is dated, at the rate per annum  designated in the
title  thereof,  payable  semi-annually,  on June 1 and  December 1 of each year
(except that the first interest  payment  thereon shall be made December 1, 2001
for the period from August 1, 2001 through November 30, 2001); and the principal
of, premium,  if any, and interest on said bond shall be payable in lawful money
of the United  States of  America  at the  office of the  Company in the City of
Indianapolis, Indiana, or, if no such office is maintained, at American National
Bank and Trust Company of Chicago,  which is hereby designated and appointed the
office  and  agency of the  Company in the City of  Chicago,  Illinois,  for the
payment of the principal of, premium,  if any, and interest on the 2024 PC Bond,
if necessary,  and for the  registration,  transfer and exchange of such bond as
hereinafter  provided;  all  reference  herein  to the  office  or agency of the
Company in the City of Chicago,  Illinois,  for the payment of the principal of,
premium, if any, and interest on the 2024 PC Bond, or the registration, transfer
or  exchange  thereof,  being to  American  National  Bank and Trust  Company of
Chicago.  In event of the  resignation or inability to act of American  National
Bank and Trust Company of Chicago,  then a successor agent for all such purposes
in the City of Chicago,  Illinois,  shall be appointed by the Board of Directors
of the Company.

     The 2024 PC Bond shall be dated as of the date of  authentication  thereof,
except as otherwise provided in Section 10 of the Original Mortgage.

     The  2024 PC Bond  will be  issued  to  evidence  and  secure a loan to the
Company by the City pursuant to the Loan  Agreement of certain funds  previously
acquired by the City through the issuance of City of Petersburg,  Indiana, Solid
Waste Disposal Revenue Bonds,  Series 1994A  (Indianapolis Power & Light Company
Project)  (the "Series 1994A  Bonds"),  authenticated  and  delivered  under and
pursuant to an  Indenture  of Trust  dated as of  December 1, 1994  (hereinafter
called the "City Indenture"),  by and between the City and Chase Manhattan Trust
Company,  National Association,  as successor to Society National Bank, Indiana,
as Trustee (the "City Trustee"). Pursuant to the City's pledge and assignment of
the Loan Agreement,  as set forth in the City Indenture,  the 2024 PC Bond shall
be issued to the City and assigned to the City  Trustee.  All of the proceeds of
the Series  1994A Bonds were used for the  financing  of the  Facilities  at the
Plant.

     Upon the notice and in the  manner  and with the  effect  provided  in this
Section 2, the 2024 PC Bond shall be  redeemable  prior to the maturity  thereof
under any one or more of the following circumstances:

(a)  In whole,  at the option of the  Company,  if the  Facilities  or the Plant
     shall have been  damaged or  destroyed to such extent that (i) it cannot be
     reasonably expected, in the opinion of the Company, to be restored within a
     period of six (6) months to the  condition  thereof  immediately  preceding
     such damage or destruction, or (ii) to such extent that the Company, in its
     reasonable  opinion,  is  thereby  prevented  from  carrying  on its normal
     operations  for a period of six (6) months or more, or (iii) to such extent
     that the restoration  thereof would not be, taking into  consideration  the
     net  proceeds  of any  insurance  payable  as a result  of such  damage  or
     destruction, economic in the reasonable opinion of the Company.

(b)  In whole,  at the option of the Company,  if title to, or the temporary use
     of, all or  substantially  all of the  Facilities or the Plant,  shall have
     been taken under the exercise of the power of eminent domain, or should any
     governmental  body or  agency  exercise  any  right  which  it may  have to
     purchase or designate a purchaser of the same,  or should such  property be
     sold to any  governmental  body or agency so that the result of such taking
     or takings is that (i) the Company,  in its reasonable  opinion, is thereby
     prevented  from carrying on its normal  operations of either the Facilities
     or the Plant for a period of six (6) months or more,  (ii) the  restoration
     required as a result of the taking  cannot be reasonably  expected,  in the
     opinion of the Company,  to be completed in a period of six (6) months,  or
     (iii) the restoration  thereof,  taking into consideration the net proceeds
     from such eminent  domain  award,  would not be economic in the  reasonable
     opinion of the Company.

(c)  In whole,  at the option of the Company,  if, as a result of any changes in
     the  Constitution or law of the State of Indiana or the Constitution or law
     of the United States of America or of legislative or administrative  action
     (whether  state or  federal) or by final  decree,  judgment or order of any
     court or administrative  body (whether state or federal) the Loan Agreement
     or the Note shall,  in the  reasonable  opinion of counsel for the Company,
     have  become  void  or   unenforceable  or  impossible  of  performance  in
     accordance  with the intent and purpose of the parties as  expressed in the
     Loan Agreement;  or unreasonable burdens or excessive liabilities shall, in
     the reasonable  opinion of the Company,  have been imposed upon the City or
     the Company, with respect to the Facilities or operation thereof, including
     without limitation federal, state or other ad valorem,  property, income or
     other taxes not being imposed on the date of the Loan Agreement  other than
     ad valorem taxes  presently  levied upon privately  owned property used for
     the same general purpose as the Facilities.

(d)  In  whole,  at the  option  of the  Company,  if  changes  in the  economic
     availability of raw materials,  operating supplies or facilities  necessary
     for the  operation of the  Facilities  or the Plant shall have  occurred or
     technological  or other  changes  shall  have  occurred  which  render  the
     Facilities uneconomic for use in the reasonable opinion of the Company.

(e)  In part,  at the  option of the  Company,  to the  extent of net  proceeds,
     received from any condemnation  award,  taking or sale as stated herein, if
     title to, or the temporary use of any portion of the Facilities  shall have
     been taken under the exercise of the power of eminent domain, or should any
     governmental  body or  agency  exercise  any  right  which  it may  have to
     purchase or designate a purchaser of the same,  or should such  property be
     sold to any governmental body or agency; provided the Company shall furnish
     to the City and the City Trustee a certificate of an  Independent  Engineer
     (as defined in the Loan Agreement) selected by the Company stating (i) that
     the  property  forming  the part of the  Facilities  that was taken by such
     condemnation,  taking  or  sale  is  not  essential  to  the  character  or
     significance  of the  Facilities,  or (ii)  that the  Facilities  have been
     restored to a condition  substantially  equivalent to their condition prior
     to the taking by such  condemnation,  taking or sale proceedings,  or (iii)
     that  improvements  have been acquired which are suitable for the operation
     of the Facilities as a qualified exempt facility.

(f)  In whole or in part,  at the option of the  Company at any time on or after
     August 1, 2011,  at a price  equal to the  principal  amount of the 2024 PC
     Bond so to be  redeemed  and accrued  interest  to the date of  redemption,
     together  with a premium  equal to a  percentage  of the  principal  amount
     thereof set forth under the heading "Redemption Premium" in the form of the
     2024 PC Bond hereinafter  recited, so long as the Company is not in default
     under the Loan Agreement or the 2024 PC Bond.

(g)  In the event all or substantially all of the mortgaged and pledged property
     under the Mortgage,  or all or substantially  all such property used in the
     business  of   generating,   manufacturing,   transporting,   transmitting,
     distributing or supplying  electricity,  should be taken by exercise of the
     power of eminent domain, or should any governmental body or agency exercise
     any right  which it may have to purchase  or  designate a purchaser  of the
     same, or should such property be sold to any  governmental  body or agency,
     the Company  shall be obligated to redeem the 2024 PC Bond  outstanding  as
     promptly as possible in  accordance  with  paragraph B of Section 69 of the
     Original Mortgage.

(h)  In the event that the Company is notified by the City  Trustee  that (i) an
     event of default under the City  Indenture has occurred and is  continuing,
     and (ii) the City  Trustee has  declared  the  principal  of all the Series
     1994A Bonds then  outstanding  immediately due and payable  pursuant to the
     City Indenture, the Company shall call for redemption, on a redemption date
     selected by it not later than thirty (30) days  following the date on which
     such  notice is  mailed,  the 2024 PC Bond  outstanding,  and shall on such
     redemption date redeem the same; provided,  however,  that such requirement
     of redemption  shall be deemed waived,  if prior to the date fixed for such
     redemption of the 2024 PC Bond (x) such event of default is waived or cured
     as set forth in the City  Indenture,  or (y) there shall have  occurred any
     completed  default (as defined in the  Mortgage)  which affects any bond of
     any series  outstanding  under the Mortgage and which completed default has
     not been cured and made good prior to such  redemption  date,  it being the
     intent of this  proviso  that,  in lieu of such  right to  redemption,  the
     holder of the 2024 PC Bond  shall be  entitled  only to such  rights as are
     available to the holders of bonds of any other series outstanding under the
     Mortgage  in the  event  of  such  completed  default;  and in  case of any
     subsequent  occurrence or  continuance  of the events  described in (i) and
     (ii) of this  Section  2(h),  the  Company  shall have the same  obligation
     (subject to the same proviso) to redeem the 2024 PC Bond.

(i)  In the event the City  Trustee  notifies  the Company and the City that the
     interest  payable on the Series  1994A  Bonds held by persons  other than a
     "substantial user" or a "related person" as those terms are used in Section
     147(a)(2)  of the  Internal  Revenue  Code of 1986,  as  amended,  has been
     determined by a court of competent  jurisdiction  or a formal ruling of the
     Internal Revenue Service to be subject to federal income taxation by reason
     of a breach by the Company of any covenant,  agreement or representation in
     the  Loan  Agreement,  the  Company  shall  call  the  2024  PC  Bond  then
     outstanding  to be redeemed  within one hundred eighty (180) days after the
     date  of  such  notice;   provided,   however,  that  such  requirement  of
     redemption, whether in whole or in part shall be deemed waived if, prior to
     the date fixed for  redemption of the 2024 PC Bond pursuant to this Section
     2(i),  there shall have occurred any  completed  default (as defined in the
     Mortgage)  which  affects  any bond of any  series  outstanding  under  the
     Mortgage and which completed default has not been cured and made good prior
     to such redemption  date, it being the intent of this proviso that, in lieu
     of such  right to  redemption,  the  holder  of the  2024 PC Bond  shall be
     entitled  only to such rights as are  available  to the holders of bonds of
     any  other  series  outstanding  under  the  Mortgage  in the event of such
     completed  default;  but when any such  completed  default  shall have been
     cured and made good,  if interest on the Series  1994A Bonds shall still be
     taxable as  described  above,  the Company  shall have the same  obligation
     (subject to the same proviso) to redeem the 2024 PC Bond within one hundred
     eighty  (180)  days after the  curing  and  making  good of such  completed
     default;  provided  further,  that the Company may call for redemption such
     portion of the 2024 PC Bond, which in the written opinion of an attorney or
     firm of  attorneys  of  nationally  recognized  standing  on the subject of
     municipal  bonds,  would allow the City  Trustee to redeem the Series 1994A
     Bonds in part,  which  redemption  would have the result that the  interest
     payable  on  the  Series  1994A  Bonds  remaining  outstanding  after  such
     redemption in part would not be subject to federal  income  taxation in the
     hands of persons other than a "substantial  user" or a "related  person" as
     those terms are used in Section  147(a)(2) of the Internal  Revenue Code of
     1986, as amended.

     In case of  redemption  of the 2024 PC Bond in  whole  for the  purpose  of
prepayment under the Loan Agreement  pursuant to subsections (a), (b), (c), (d),
(f), (g), (h) or (i) above,  the amounts  payable upon redemption of the 2024 PC
Bond shall be a sum  sufficient,  together with other funds  deposited  with the
City  Trustee and  available  for such  purpose,  to pay the  principal  of (and
premium,  in the case of redemption  pursuant to (f) above), and interest on the
2024 PC Bond then  outstanding  and to pay all reasonable and necessary fees and
expenses of the City Trustee  accrued and to accrue through final payment of the
2024 PC Bond.

     In case of redemption in part pursuant to (e), (f) or (i) above, the amount
payable by the Company under this Forty-Fourth  Supplemental Indenture, the Loan
Agreement  and the 2024 PC Bond shall be a sum  sufficient,  together with other
funds  deposited  with the Trustee and available  for such  purpose,  to pay the
principal of (and premium in the case of  prepayment  pursuant to (f) above) and
interest on the 2024 PC Bond so to be redeemed,  which sum  together  with other
funds  deposited  with the City Trustee and  available for such purpose shall be
sufficient to pay the principal of, premium,  if any, and interest on the Series
1994A Bonds and to pay all  reasonable  and  necessary  fees and expenses of the
City Trustee accrued and to accrue through such partial prepayment.

     The 2024 PC Bond and the Series 1994A Bonds shall be redeemable at any time
within one hundred eighty (180) days following the event or events  described as
giving rise to an option of the Company to redeem them in subsections  (a), (b),
(c), (d) or (e) above.

     To exercise any of the options  granted to redeem the 2024 PC Bond in whole
or in part or to comply with any obligations to redeem the 2024 PC Bond in whole
or in part imposed in this Section 2, the Company  shall give written  notice of
the date of redemption  to the City  Trustee,  which date shall be not less than
thirty  (30) days nor more  than  sixty  (60)  days from the date the  notice is
mailed.  No further notice,  by publication or otherwise,  shall be required for
redemption  of the 2024 PC  Bond,  and the  requirements  of  Section  59 of the
Mortgage  for  notice by  newspaper  publication  shall not apply to the 2024 PC
Bond.

     At the option of the holder,  the 2024 PC Bond,  upon surrender  thereof at
the  office or agency of the  Company  in  Chicago,  Illinois,  together  with a
written  instrument of transfer in form approved by the Company duly executed by
the holder or by his duly authorized attorney,  shall be exchangeable for a like
aggregate principal amount of fully registered bonds of the same series of other
authorized denominations.

     The 2024 PC Bond will be  nontransferable  except to the City  Trustee  and
successors  thereto,  if  any,  and to the  Company.  To the  extent  that it is
transferable,  it is transferable by the registered holder thereof, in person or
by  attorney  duly  authorized  in  writing,  on the books of the Company at the
office or agency of the Company in the City of Chicago, Illinois, upon surrender
thereof  for  cancellation  at said  office and upon  presentation  of a written
instrument of transfer duly executed.  Thereupon, the Company shall issue in the
name of the transferee,  and the Trustee shall  authenticate and deliver,  a new
registered  2024 PC Bond,  in an  authorized  denomination,  of equal  principal
amount. Any such transfer shall be subject to the terms and conditions specified
in the Mortgage and in this Forty-Fourth Supplemental Indenture.

     The Company  shall not be required to transfer or exchange the 2024 PC Bond
for a period of ten (10) days next  preceding any interest  payment date of said
bond.

     Except as set forth  herein,  no charge  shall be made upon any transfer or
exchange  of any of the  2024 PC Bond  other  than for any tax or taxes or other
governmental charge required to be paid by the Company.

     The 2024 PC Bond  shall be  limited  to an  aggregate  principal  amount of
Twenty Million Dollars ($20,000,000) and shall be issued under the provisions of
Article VII of the Original Mortgage.

     SECTION 3. The 2024 PC Bond,  and the Trustee's  Certificate to be endorsed
thereon, shall be in the following forms, respectively:

                         [FORM OF FACE OF 2024 PC BOND]

     This First Mortgage Bond, 5.90% Series,  due 2024  (hereinafter  called the
"2024 PC Bond") is not  transferable  except to a  successor  trustee  under the
Indenture of Trust dated as of December 1, 1994, between the City of Petersburg,
Indiana and Chase Manhattan Trust Company, National Association, as successor to
Society National Bank, Indiana, as the Trustee, or to Indianapolis Power & Light
Company.

                       INDIANAPOLIS POWER & LIGHT COMPANY

                   FIRST MORTGAGE BOND, 5.90% Series, Due 2024
                              Due December 1, 2024

No. 1                                                                $20,000,000

     INDIANAPOLIS  POWER & LIGHT COMPANY,  a corporation of the State of Indiana
(hereinafter called the "Company"),  for value received,  hereby promises to pay
Chase Manhattan  Trust Company,  National  Association,  as successor to Society
National Bank, Indiana,  as the Trustee  (hereinafter called the "City Trustee")
under the  Indenture  of Trust  between  the City of  Petersburg,  Indiana  (the
"City")  and  the  City  Trustee,  dated  as of  December  1,  1994  (the  "City
Indenture")  or  registered  assigns,  on December 1, 2024, at the office of the
Company, in the City of Indianapolis,  State of Indiana, or if no such office is
maintained  at the time by the  Company,  then at the  office  or  agency of the
Company  for such  purpose in the City of  Chicago,  State of  Illinois,  Twenty
Million Dollars  ($20,000,000)  in lawful money of the United States of America,
and to pay to the registered owner hereof interest thereon from the first day of
June or the first day of December  next  preceding the date of this 2024 PC Bond
(except that the first interest  payment  hereunder shall be made on December 1,
2001 for the period from August 1, 2001 through  November 30, 2001), at the rate
of five and ninety  hundreths  percent (5.90%) per annum in like lawful money at
said office or agency on June 1 and December 1 in each year, until the Company's
obligation  with  respect  to the  payment  of such  principal  shall  have been
discharged.  The interest payable hereunder on June 1 or December 1 will be paid
to the registered  owner of this 2024 PC Bond at or before the close of business
on such dates, or if such date shall be a Saturday,  Sunday, holiday or a day on
which banking institutions in the City of Indianapolis or the city of any paying
agents are authorized by law to close, on or before the close of business on the
next  succeeding  business day on which such banking  institutions  are open for
business.

     REFERENCE IS MADE TO THE FURTHER  PROVISIONS OF THIS 2024 PC BOND SET FORTH
ON THE REVERSE HEREOF. SUCH FURTHER PROVISIONS SHALL, FOR ALL PURPOSES, HAVE THE
SAME EFFECT AS THOUGH FULLY SET FORTH IN THIS PLACE.

     No recourse shall be had for the payment of the principal of or interest on
this  2024 PC Bond  against  any  incorporator  or any past,  present  or future
subscriber to the capital stock, stockholder, officer or director of the Company
or of any  predecessor or successor  corporation,  as such,  either  directly or
through the Company or any predecessor or successor corporation,  under any rule
of law,  statute,  or  constitution  or by the  enforcement of any assessment or
otherwise,  all such  liability  of  incorporators,  subscribers,  stockholders,
officers and directors,  as such,  being waived and released by the terms of the
Mortgage, as herein defined.

     This 2024 PC Bond shall not become  obligatory until American National Bank
and Trust Company of Chicago, the Trustee under the Mortgage, as herein defined,
or its successor thereunder,  shall have signed the form of certificate endorsed
hereon.

     IN WITNESS WHEREOF, INDIANAPOLIS POWER & LIGHT COMPANY has caused this 2024
PC Bond to be signed in its name by its President or one of its Vice Presidents,
by his signature or a facsimile  thereof,  and its corporate  seal to be affixed
hereon,  attested by its Secretary or one of its Assistant  Secretaries,  by his
signature or a facsimile thereof.

                                            INDIANAPOLIS POWER & LIGHT
                                                     COMPANY

Dated_______________                       By_______________________________
                                                                       President

Attest:

By_____________________________
                  Secretary

<PAGE>

                 [FORM OF TRUSTEE'S CERTIFICATE ON 2024 PC BOND]

                              Trustee's Certificate

     This 2024 PC Bond is one of the  bonds,  of the series  herein  designated,
provided  for in the  within-mentioned  Mortgage and  Forty-Fourth  Supplemental
Indenture thereto.


                                            AMERICAN NATIONAL BANK AND
                                            TRUST COMPANY OF CHICAGO
                                                                Trustee

                                            By________________________________
                                            Authorized Signature


                     [FORM OF REVERSE SIDE OF 2024 PC BOND]

                       INDIANAPOLIS POWER & LIGHT COMPANY

                   FIRST MORTGAGE BOND, 5.90% Series, due 2024
                              Due December 1, 2024

     This 2024 PC Bond is one of an issue of bonds of the  Company,  issuable in
series,  and is one of a series known as its First Mortgage Bonds, 5.90% Series,
due 2024  (herein  called  the "2024 PC Bond")  limited in  aggregate  principal
amount to Twenty Million Dollars ($20,000,000) and established by a Forty-Fourth
Supplemental  Indenture  dated as of August  1,  2001,  all bonds of all  series
issued and to be issued under and equally secured (except insofar as any sinking
or other fund,  established  in accordance  with the  provisions of the Mortgage
hereinafter  mentioned,  may  afford  additional  security  for the bonds of any
particular  series)  by a Mortgage  and Deed of Trust,  dated as of May 1, 1940,
executed by the Company to American  National Bank and Trust Company of Chicago,
as the Trustee (which Mortgage and Deed of Trust as supplemented and modified by
all  supplemental   indentures  thereto  is  hereinafter   referred  to  as  the
"Mortgage"),  to  which  Mortgage  reference  is made for a  description  of the
property  mortgaged  and  pledged,  the nature and extent of the  security,  the
rights of the  bearers  or  registered  owners of the bonds in  respect  of such
security,  the duties and immunities of the Trustee and the terms and conditions
upon which the bonds are secured.

     This  2024 PC Bond  evidences  and  secures  a loan made by the City to the
Company, pursuant to a Loan Agreement, dated as of December 1, 1994, between the
City and the Company (the "Loan  Agreement").  In order to obtain funds for such
loan, the City issued Twenty Million Dollars  ($20,000,000)  principal amount of
its Solid Waste Disposal Revenue Bonds, Series 1994A (Indianapolis Power & Light
Company  Project) (the "City  Bonds") under and pursuant to the City  Indenture.
The City Bonds are payable from  payments  made by the Company of principal  of,
premium,  if any,  and interest on this 2024 PC Bond and from moneys in the Bond
Fund created under the City Indenture.  The obligation of the Company to pay the
principal  of,  premium,  if any,  and  interest  on this 2024 PC Bond  shall be
discharged  to the extent  that any moneys in said Bond Fund are  available  for
payments  on the City  Bonds  and are  directed  by the  Company  to be  applied
thereto, all as provided in the Forty-Fourth Supplemental Indenture.

     This 2024 PC Bond is not  subject  to  redemption  prior to August 1, 2011,
except as provided in Section 2 of the Forty-Fourth  Supplemental  Indenture, to
which reference is made for full description of redemption provisions.

     This 2024 PC Bond is subject to  redemption in whole or in part at any time
on or after August 1, 2011,  at the option of the Company,  upon at least thirty
(30)  days  prior  notice,  all as  provided  in the  Forty-Fourth  Supplemental
Indenture, at a price equal to the principal amount of the 2024 PC Bond so to be
redeemed and accrued interest to the date of redemption, together with a premium
equal to a percentage of the principal  amount thereof set forth below under the
heading "Redemption Premium":

         If Redeemed During the Twelve Months
         Ending With the Thirty-first Day                     Redemption
         Of July of the Year Stated                           Premium
         ---------------------------------------------------------------
         2012                                                 2.0%
         2013                                                 1.5%
         2014                                                 1.0%
         2015                                                 0.5%

and without premium if redeemed after July 31, 2015.

     With the  consent  of the  Company  and to the extent  permitted  by and as
provided in the Mortgage,  the rights and  obligations  of the Company and/or of
the holders of the bonds and/or  coupons  and/or the terms and provisions of the
Mortgage and/or any instruments  supplemental thereto may be modified or altered
by affirmative vote of the holders of at least sixty-six and two-thirds  percent
(66-2/3%)  in principal  amount of the bonds  affected by such  modification  or
alteration then outstanding  under the Mortgage  (excluding  bonds  disqualified
from  voting by reason of the  Company's  interest  therein as  provided  in the
Mortgage);  provided that no such  modification  or alteration  shall permit the
extension of the maturity of the principal of this 2024 PC Bond or the reduction
in the rate of interest hereon or any other modification in the terms of payment
of such  principal  or interest  without the consent of the holder  hereof.  The
principal  hereof may be  declared  or may become due and  payable  prior to the
stated date of maturity hereof, on the conditions, in the manner and at the time
set forth in the Mortgage,  upon the occurrence of a completed default as in the
Mortgage provided.

     No reference herein to the Mortgage,  and no provision of this 2024 PC Bond
or of the Mortgage,  shall alter or impair the obligation of the Company,  which
is  absolute  and  unconditional,  to  pay,  subject  to the  provisions  of the
Forty-Fourth  Supplemental Indenture, the principal of, and premium, if any, and
interest on this 2024 PC Bond at the place,  at the respective  times and at the
rate and the manner herein prescribed.

     This 2024 PC Bond is issuable only in full  registered form without coupons
in denominations  of Five Thousand Dollars ($5,000) and any larger  denomination
which is a whole multiple of Five Thousand Dollars ($5,000).

     This 2024 PC Bond will be  nontransferable  except to the City  Trustee and
successors  thereto,  if  any,  and to the  Company.  To the  extent  that it is
transferable,  it is transferable by the registered holder thereof, in person or
by  attorney  duly  authorized  in  writing,  on the books of the Company at the
office or agency of the Company in the City of Chicago, Illinois, upon surrender
thereof  for  cancellation  at said  office and upon  presentation  of a written
instrument of transfer duly executed.  Thereupon, the Company shall issue in the
name of the transferee,  and the Trustee shall  authenticate and deliver,  a new
registered  2024 PC Bond,  in an  authorized  denomination,  of equal  principal
amount. Any such transfer shall be subject to the terms and conditions specified
in the Mortgage and in the Forty-Fourth Supplemental Indenture.

     Upon  redemption of this 2024 PC Bond in part and surrender  thereof at the
office or agency of the Company in Chicago,  Illinois, for exchange, the Trustee
shall  authenticate  and deliver a new registered  2024 PC Bond in an authorized
denomination and principal  amount equal to the reduced  principal amount due on
that series after such partial redemption.

                           [END OF 2024 PC BOND FORM]

     SECTION 4. Until the 2024 PC Bond in definitive form is ready for delivery,
the Company  may  execute,  and upon its  request in writing  the Trustee  shall
authenticate  and deliver,  in lieu thereof,  a fully registered 2024 PC Bond in
temporary  form, as provided in Section 15 of the Original  Mortgage.  Such bond
may, in lieu of the statement of the specific  redemption  prices required to be
set  forth  in  such  bond in  definitive  form,  include  a  reference  to this
Forty-Fourth Supplemental Indenture for a statement of such redemption prices.

     SECTION  5.  The  Company  covenants  and  agrees  that  it will  duly  and
punctually pay to the holder of the 2024 PC Bond the principal thereof, premium,
if any,  and  interest  on said bond at the  dates  and place and in the  manner
mentioned therein; provided, however, that:

     (a)  the obligation of the Company to pay the principal of, and premium, if
   any, and interest on the 2024 PC Bond shall be  discharged to the extent that
   any moneys in the Bond Fund created under and pursuant to the City  Indenture
   are available  for the payment of the  principal  of, or premium,  if any, or
   interest  on the Series  1994A  Bonds and are  directed  by the Company to be
   applied to the payment  thereof in the manner  provided in the City Indenture
   on or  prior to the  dates  on  which  the  Company  is  required  to pay the
   principal of, or premium, if any, or interest on the 2024 PC Bond.

     (b)  Except as otherwise  provided in this Section 5, the principal  amount
   of any Series  1994A Bond  acquired by the Company and  delivered to the City
   Trustee,  or acquired by the City  Trustee and  cancelled,  shall be credited
   against the  obligation  of the Company to pay the  principal  of the 2024 PC
   Bond.

As the principal of,  premium,  if any, and interest on the 2024 PC Bond is paid
or deemed paid in full, and upon its receipt by the Company,  such bond shall be
delivered to the Trustee for cancellation. The Company shall promptly inform the
Trustee  of all  payments  made  and  credits  availed  of with  respect  to its
obligations  on the 2024 PC Bond. The Trustee shall not be required to recognize
any payment made or credit availed of with respect to any 2024 PC Bond unless it
has received (a) the bond for cancellation by it, or (b) a certificate signed by
a duly  authorized  officer of the City  Trustee  specifying  the amount of such
payment or credit and the  principal  amount of the 2024 PC Bond with respect to
which the  payment  or credit  was  applied.  In the  absence  of receipt by the
Trustee  of any 2024 PC Bond,  any such  certificate  shall be  controlling  and
conclusive.

     SECTION 6. The  covenant  of the  Company to make  annual  payments  to the
Trustee for a Maintenance and Improvement Fund as contained in Section 41 of the
Original  Mortgage and in the first twenty-four  Supplemental  Indentures to the
Original  Mortgage creating the several series of First Mortgage Bonds presently
outstanding under such Supplemental Indentures shall not apply to nor be for the
benefit of the 2024 PC Bond,  and the Company  reserves  the right,  without any
consent of, or other action by, the holder of the 2024 PC Bond, to amend, modify
or delete the  provisions  of the  Mortgage  relating  to such  Maintenance  and
Improvement Fund and by acceptance of the 2024 PC Bond the holder thereof waives
any right or  privilege  so to consent  or take any other  action  with  respect
thereto.

     SECTION 7. The Company  covenants  that,  so long as the 2024 PC Bond shall
remain  outstanding,  it will comply with all of the provisions of Section 47 of
the Original  Mortgage,  including the provisions with respect to limitations on
dividends and distributions and the purchase and redemption of stock.

     SECTION 8. The Trustee hereby accepts the trusts herein declared,  provided
and created and agrees to perform the same upon the terms and conditions  herein
and in the Mortgage set forth and upon the following terms and conditions:

     The  recitals  contained  herein  and in the  bonds  shall  be taken as the
statements  of the  Company and the Trustee  assumes no  responsibility  for the
correctness of the same. The Trustee makes no representations as to the validity
or adequacy  of the  security  afforded  hereby,  or as to the  validity of this
Forty-Fourth Supplemental Indenture or of the 2024 PC Bond issued hereunder.

     SECTION 9. Whenever in this Forty-Fourth  Supplemental  Indenture either of
the  parties  hereto  is  named or  referred  to,  this  shall,  subject  to the
provisions  of Article XVII of the Original  Mortgage,  be deemed to include the
successors or assigns of such party,  and all the  covenants  and  agreements in
this  Forty-Fourth  Supplemental  Indenture  contained  by or on  behalf  of the
Company, or by or on behalf of the Trustee,  shall,  subject as aforesaid,  bind
and inure to the  benefit  of the  respective  successors  and  assigns  of such
parties, whether so expressed or not.

     SECTION 10. Nothing in this Forty-Fourth  Supplemental  Indenture expressed
or implied, is intended or shall be construed to confer upon, or to give to, any
person,  co-partnership  or  corporation,  other than the parties hereto and the
holders of the bonds and  coupons  outstanding  under the  Mortgage,  any right,
remedy, or claim under or by reason of this Forty-Fourth  Supplemental Indenture
or any  covenant,  condition  or  stipulation  hereof;  and all  the  covenants,
conditions,   stipulations,   promises  and  agreements  in  this   Forty-Fourth
Supplemental Indenture contained by or on behalf of the Company shall be for the
sole and exclusive benefit of the parties hereto and of the holders of the bonds
and of the coupons outstanding under the Mortgage.

     SECTION 11. The Company  covenants  that all of the terms,  provisions  and
conditions  of the  Mortgage  shall be  applicable  to the  2024 PC Bond  issued
hereunder,  except as herein  otherwise  provided and except insofar as the same
may be  inconsistent  with  the  provisions  of this  Forty-Fourth  Supplemental
Indenture.

     SECTION 12. This Forty-Fourth  Supplemental Indenture is dated as of August
1, 2001,  although  executed and  delivered  on the date of the  acknowledgement
hereof by the Trustee;  and shall be  simultaneously  executed and  delivered in
several counterparts,  and all such counterparts executed and delivered, each as
an original, shall constitute but one and the same instrument.


<PAGE>

     IN WITNESS WHEREOF,  INDIANAPOLIS POWER & LIGHT COMPANY, party of the first
part, has caused its corporate name to be hereunto  affixed and this  instrument
to be signed and  acknowledged  by its  President or a  Vice-President,  and its
corporate  seal  to be  hereto  affixed  and  attested  by its  Secretary  or an
Assistant Secretary, for and in its behalf, and AMERICAN NATIONAL BANK AND TRUST
COMPANY  OF  CHICAGO,  party of the  second  part,  as  Trustee,  has caused its
corporate  name to be  hereunto  affixed  and this  instrument  to be signed and
acknowledged  by one of its  Authorized  Officers,  and its corporate seal to be
hereto  affixed and attested by one of its  Authorized  Officers,  all as of the
day, month and year first above written.


                                            INDIANAPOLIS POWER & LIGHT
                                            COMPANY,


                                            By /s/WILLIAM H. HENLEY
                                              ----------------------------------
(SEAL)                                         WILLIAM H. HENLEY,
                                               President
Attest:

By: /s/WILLIAM R. DODDS
   ------------------------------
    WILLIAM R. DODDS,
    Secretary
                                            AMERICAN NATIONAL BANK AND
                                            TRUST COMPANY OF CHICAGO


                                            By /s/ROBERT M. SELANGOWSKI
                                              ---------------------------------
                                               ROBERT M. SELANGOWSKI,
                                               Authorized Officer
Attest:
(SEAL)

By: /s/F. HENRY KLESCHEN
   ---------------------------------
    F. HENRY KLESCHEN,
    Authorized Officer
<PAGE>

STATE OF INDIANA  )
                  )  SS:
COUNTY OF MARION  )

     On this 26th day of July,  in the year 2001,  before me, a Notary Public in
and for the County  and State  aforesaid,  personally  came  WILLIAM H.  HENLEY,
President  and  WILLIAM  R.  DODDS,  Secretary,  of  Indianapolis  Power & Light
Company,  one of the corporations  described in and which executed the foregoing
instrument,  to me  personally  known  and  known  to me  personally  to be such
President  and  Secretary,  respectively.  Said WILLIAM H. HENLEY and WILLIAM R.
DODDS being by me severally  duly sworn did depose and say that the said WILLIAM
H.  HENLEY  resides  in Marion  County,  Indiana  and the said  WILLIAM R. DODDS
resides in Fulton County, Illinois; that said WILLIAM H. HENLEY is President and
said WILLIAM R. DODDS is Secretary of said  Indianapolis  Power & Light Company;
that each of them knows the corporate  seal of said  corporation;  that the seal
affixed to said  instrument  and  bearing the name of said  corporation  is such
corporate  seal;  that it was so affixed by order of the Board of  Directors  of
said  corporation;  and that each of them signed his name thereto by like order;
and each of them acknowledged the execution of said instrument on behalf of said
corporation to be his free and voluntary act and deed and the free and voluntary
act and deed of said corporation, for the uses and purposes therein set forth.

     IN WITNESS  WHEREOF,  I have  hereunto  set my hand and affixed my official
seal this 26th day of July, 2001.


                                                /s/DINAH L. KIRKHAM
                                                --------------------------------
                                                DINAH L. KIRKHAM,
                                                Notary Public

My Commission Expires:
         June 23, 2008

My County of Residence is:
         Johnson
                                                                 (NOTARIAL SEAL)
<PAGE>

STATE OF ILLINOIS )
                  )  SS:
COUNTY OF COOK    )

     On this 26th day of July,  in the year 2001,  before me, a Notary Public in
and for the County and State  aforesaid,  personally came ROBERT M.  SELANGOWSKI
and F. HENRY KLESCHEN,  Authorized  Officers of American National Bank and Trust
Company of Chicago, one of the corporations  described in and which executed the
foregoing  instrument,  to me personally  known and known to me personally to be
such  Authorized  Officers.  Said ROBERT M.  SELANGOWSKI  and F. HENRY KLESCHEN,
being  by me  severally  sworn  did  depose  and say that  the  said  ROBERT  M.
SELANGOWSKI  resides in Lansing,  Illinois,  and that the said F. HENRY KLESCHEN
resides in Evanston, Illinois; that said ROBERT M. SELANGOWSKI and said F. HENRY
KLESCHEN,  are  Authorized  Officers of said  American  National  Bank and Trust
Company  of  Chicago;  that  each  of  them  knows  the  corporate  seal of said
corporation;  that the seal affixed to said  instrument  and bearing the name of
said  corporation is such corporate seal; that it was so affixed by authority of
the Board of  Directors of said  corporation;  that each of them signed his name
thereto by like authority;  and each of them  acknowledged the execution of said
instrument  on behalf of said  corporation  to be his free and voluntary act and
deed and the free and voluntary act and deed of said  corporation,  for the uses
and purposes therein set forth.

     IN WITNESS  WHEREOF,  I have  hereunto  set my hand and affixed my official
seal this 26th day of July, 2001.

                                                /s/KATHLEEN A. WHITE
                                                --------------------------------
                                                KATHLEEN A. WHITE,
                                                      Notary Public

My Commission Expires:
         February 9, 2002
My County of Residence is:
         Cook

(NOTARIAL SEAL)


                         This instrument was prepared by
                                 BRIANE M. HOUSE
<PAGE>

                                    RECORDING DATA

            Forty-Fourth Supplemental Indenture Dated as of August 1, 2001

                                                     Instrument        Recording
County            Record            Page             No.               Date
--------------------------------------------------------------------------------


Bartholomew       ---               ---              200100009897      7/27/2001
Boone             ---               ---              0109136           7/27/2001
Daviess           ---               ---              01-3597           7/27/2001
Gibson            ---               ---              200100005589      7/27/2001
Greene            Inden. Bk. 27     44-70            200100004075      7/27/2001
Hamilton          ---               ---              200100046496      7/27/2001
Hancock           ---               ---              0110423           7/27/2001
Hendricks         Mtg. Rec. 261     789-815          200100021810      7/27/2001
Johnson           ---               ---              2001-022710       7/27/2001
Knox              Mtg. Rec. 554     543-569          5736              7/27/2001
Madison           ---               ---              200117485         7/27/2001
Marion            ---               ---              2001-0130009      7/27/2001
Monroe            ---               ---              2001015472        7/27/2001
Morgan            ---               ---              20111810          7/27/2001
Owen              Mtg. Rec. IC      523-549          138715            7/27/2001
Pike              Mtg. Rec. 306     269-295          01-1784           7/27/2001
Putnam            ---               ---              2001005422        7/27/2001
Shelby            ---               ---              0106331           7/27/2001
Sullivan          Mtg. Rec. 258     978              012792            7/27/2001
Switzerland       Mtg. Rec. 133     26               8807              7/27/2001


<PAGE>

                                                                  Exhibit 4.4.15

                                                                [CONFORMED COPY]
================================================================================






                       INDIANAPOLIS POWER & LIGHT COMPANY
                                       TO
                        AMERICAN NATIONAL BANK AND TRUST
                               COMPANY OF CHICAGO
                                                Trustee


                                   ----------

                       Forty-Fifth Supplemental Indenture

                                   ----------



                           Dated as of August 1, 2001


                       ESTABLISHING FIRST MORTGAGE BONDS,
                             5.95% Series, Due 2029




================================================================================

<PAGE>

                                       ii

                               TABLE OF CONTENTS*

                                       of
                       FORTY-FIFTH SUPPLEMENTAL INDENTURE
                                       of
                       INDIANAPOLIS POWER & LIGHT COMPANY


                                                                            Page


PARTIES........................................................................1
RECITALS ......................................................................1
SECTION 1       Granting clauses...............................................3
                    Part I   Electric Distributing Systems.....................4
                    Part II Reserved...........................................4
                    Part III Indeterminate Permits and Franchises..............4
                    Part IV  Other Property....................................5
                    General and after-acquired title...........................6
SECTION 2       Designation of Forty-Fifth series of bonds and kind and
                    denominations thereof .....................................6
                Designation of Company or American National Bank and Trust
                    Company of Chicago as paying agent.........................6
                Purpose of bonds...............................................7
                Redemption of bonds............................................7
                Exchange of bonds.............................................12
                Transfer of bonds.............................................12
                Series limited to $30,000,000.................................13
SECTION 3       Form of fully registered bond.................................13
                Form of Trustee's certificate on bonds........................15
SECTION 4       Temporary bonds...............................................19
SECTION 5       Payment of principal and interest; credits....................19
SECTION 6       Annual Payments for Maintenance and Improvement Fund..........20
SECTION 7       Compliance with Section 47 of Original Mortgage with
                   respect to dividend restrictions...........................20
SECTION 8       Acceptance of trusts by Trustee and conditions of
                   Acceptance.................................................20
-------------------
*    Table of Contents is not part of the Forty-Fifth Supplemental Indenture and
     should not be considered  such. It is included  herein only for purposes of
     convenient reference.

<PAGE>


                                                                            Page

SECTION 9         Successors and assigns......................................20
SECTION 10        Limitation of rights hereunder..............................21
SECTION 11        Compliance with terms, provisions
                        and conditions of Mortgage............................21
SECTION 12        Execution in counterparts...................................21

TESTIMONIUM...................................................................22
SIGNATURES AND SEALS..........................................................22
ACKNOWLEDGEMENTS..............................................................22

<PAGE>

     THIS  FORTY-FIFTH  SUPPLEMENTAL  INDENTURE,  dated as of  August  1,  2001,
between  INDIANAPOLIS  POWER & LIGHT  COMPANY,  a  corporation  of the  State of
Indiana,  hereinafter  sometimes  called the "Company," party of the first part,
and AMERICAN  NATIONAL  BANK AND TRUST  COMPANY OF CHICAGO,  a national  banking
association,  as Trustee,  hereinafter  sometimes called the "Trustee," party of
the second part;

     WHEREAS, the Company by a Mortgage and Deed of Trust (hereinafter sometimes
called  the  "Original  Mortgage"  when  referred  to as  existing  prior to any
supplement thereto or modification  thereof, and the "Mortgage" when referred to
as now or heretofore supplemented and modified) dated as of May 1, 1940, made to
said American National Bank and Trust Company of Chicago,  as Trustee, to secure
the  payment of the bonds  issued from time to time under the  Mortgage  for the
purposes of and subject to the  limitations  specified in the  Mortgage,  and to
secure the  performance  of the  covenants  therein  contained,  conveyed to the
Trustee  thereunder  upon certain  trusts,  terms and  conditions,  and with and
subject to certain provisos and covenants  therein  contained,  all and singular
the  property,  rights and  franchises  which the  Company  then owned or should
thereafter  acquire,  excepting the property  expressly excepted by the terms of
the Original Mortgage or any indenture  supplemental  thereto, to which Mortgage
reference is hereby made for greater certainty; and

     WHEREAS,  the  Original  Mortgage  has been  supplemented  and  modified by
supplemental  indentures  dated as of May 1, 1942, as of February 1, 1948, as of
April 1, 1949, as of October 1, 1949 (two),  as of February 1, 1951, as of March
1, 1953,  as of June 1, 1956,  as of March 1, 1958, as of October 1, 1960, as of
August 1, 1964, as of April 1, 1966, as of May 1, 1967, as of May 1, 1968, as of
October 1, 1970,  as of March 1, 1972,  as of March 15, 1973, as of February 15,
1974, as of August 15, 1974, as of September 15, 1975, as of June 1, 1976, as of
July 1, 1976,  as of August 1, 1977,  as of September  1, 1978,  as of August 1,
1981 (two),  as of November 1, 1983,  as of November 1, 1984,  as of December 1,
1984,  as of September 1, 1985, as of October 1, 1986, as of June 1, 1989, as of
August 1, 1989,  as of October 15,  1991,  as of August 1, 1992,  as of April 1,
1993, as of October 1, 1993 (two),  as of February 1, 1994 (two),  as of January
15, 1995, as of October 1, 1995 and as of August 1, 2001 (two); and


     WHEREAS,  Section 8 of the Original Mortgage provides,  among other things,
that the form of each series of bonds  (other  than the initial  issue of bonds)
issued  thereunder  shall be  established by an indenture  supplemental  thereto
authorized by resolution of the Board of Directors of the Company,  and that the
form of each series, as established by the Board of Directors, shall specify the
descriptive  title of the bonds and various  other terms  thereof,  and may also
contain such other  provisions as the Board of Directors may, in its discretion,
cause to be inserted therein expressing or referring to the terms and conditions
upon which such bonds are to be issued and secured  under the Original  Mortgage
or any indenture supplemental thereto or in modification thereof; and

     WHEREAS, the Company entered into a Loan Agreement, dated as of December 1,
1995  (hereinafter  called the "Loan  Agreement")  with the City of  Petersburg,
Indiana  (the  "City"),  in order to obtain  funds for the  financing of certain
facilities and equipment collectively comprising solid waste disposal facilities
(the  "Facilities")  located at the Petersburg  Generating Station Units 1 and 2
(the "Plant") and the issuance of $30,000,000  aggregate principal amount of the
City's Solid Waste Disposal Revenue Bonds,  Series 1995C  (Indianapolis  Power &
Light Company Project) (the "Bonds"); and

     WHEREAS, the Company has elected to convert the applicable interest rate on
the Bonds to the Long Term Rate  effective as of August 1, 2001, and pursuant to
the Loan Agreement,  the Company has agreed to issue a series of its bonds under
the Mortgage and this  Forty-Fifth  Supplemental  Indenture in order to evidence
and secure its indebtedness under the Loan Agreement; and

     WHEREAS,  the  Company  now  desires  to  provide  for  the  establishment,
execution,  authentication  and delivery under the Mortgage of bonds of a series
to be known as its "First Mortgage Bonds,  5.95% Series, due 2029" (the bonds of
said  series  being  hereinafter  sometimes  referred to as the "2029 PC Bond"),
limited  to  the  aggregate   principal   amount  of  Thirty   Million   Dollars
($30,000,000); and

     WHEREAS,  all  things  necessary  to make  the  2029  PC  Bond  hereinafter
described,  when duly executed by the Company and authenticated and delivered by
the Trustee, a valid,  binding and legal obligation of the Company,  and to make
this  Forty-Fifth   Supplemental   Indenture  a  valid  and  binding   agreement
supplemental to the Original Mortgage, have been done and performed; and

     WHEREAS,  the  execution  and  delivery by the Company of this  Forty-Fifth
Supplemental  Indenture,  and the  terms  of the 2029 PC Bond,  have  been  duly
authorized by the Board of Directors of the Company by  appropriate  resolutions
of said Board; and

     WHEREAS,  it is provided in and by the Original  Mortgage  that the Company
will execute and deliver such  further  instruments  and do such further acts as
may be  necessary  or proper to carry out more  effectively  the purposes of the
Mortgage,  and to make  subject  to the lien  thereof  any  property  thereafter
acquired and intended to be subject to the lien thereof; and

     WHEREAS,  the Company has,  since the date of execution and delivery of the
Original  Mortgage,   purchased  and  acquired  property  and  desires  by  this
Forty-Fifth  Supplemental  Indenture  specifically to convey to the Trustee such
property  for the better  protection  and security of the bonds issued and to be
issued under the Original Mortgage, or any indenture supplemental thereof;

     NOW,  THEREFORE,  THIS INDENTURE  WITNESSETH  that, in consideration of the
premises and of the acceptance or purchase of the 2029 PC Bond by the registered
owners thereof, and of the sum of one dollar,  lawful money of the United States
of America,  to the Company duly paid by the Trustee at or before the  execution
and delivery of this Forty-Fifth  Supplemental Indenture, the receipt whereof is
hereby  acknowledged,  the Company and the Trustee,  respectively,  have entered
into, executed and delivered this Forty-Fifth  Supplemental  Indenture,  for the
uses and purposes hereinafter expressed, that is to say:

     SECTION 1. The Company has granted,  bargained,  sold, released,  conveyed,
assigned, transferred,  mortgaged, pledged, set over and confirmed, and by these
presents does grant, bargain, sell, release, convey, assign, transfer, mortgage,
pledge,  set over and confirm (subject,  however,  to permitted  encumbrances as
defined in the Original  Mortgage),  unto said American  National Bank and Trust
Company of Chicago,  as Trustee,  as herein provided,  and its successors in the
trusts declared in the Original Mortgage and herein, all of the property,  real,
personal  and mixed,  tangible  and  intangible,  of every kind,  character  and
description  which the Company has acquired  since the execution and delivery of
the  Original  Mortgage and now owns  (except  property,  rights and assets of a
character  similar to that  excluded from the lien and operation of the Mortgage
by the Granting  Clauses of the Original  Mortgage,  which property,  rights and
assets are excluded  from the lien and  operation  of the  Mortgage  only to the
extent  provided  therein),   including,  but  without  otherwise  limiting  the
generality of the foregoing,  the following  described  property situated within
the State of Indiana:

                                     PART I.
                         ELECTRIC DISTRIBUTING SYSTEMS.

     All electric  distributing  systems of the Company acquired by it after May
1, 1940,  the date of the  Original  Mortgage,  and  located in the  Counties of
Bartholomew,  Boone, Daviess,  Gibson,  Greene,  Hamilton,  Hancock,  Hendricks,
Johnson,  Knox, Madison,  Marion,  Monroe,  Morgan, Owen, Pike, Putnam,  Shelby,
Sullivan and Switzerland,  State of Indiana;  and any additions to or extensions
of any  such  systems,  together  with  the  buildings,  erections,  structures,
transmission lines, power stations, sub-stations,  engines, boilers, condensers,
pumps, turbines,  machinery,  tools, conduits,  manholes,  insulators,  dynamos,
motors,  lamps, cables,  wires, poles,  towers,  cross-arms,  piers,  abutments,
switchboard   equipment,    meters,    appliances,    instruments,    apparatus,
appurtenances,  maps, records, ledgers, contracts, facilities and other property
or  equipment  used or provided  for use in  connection  with the  construction,
maintenance, repair and operation thereof; together also with all of the rights,
privileges, rights-of-way,  franchises, licenses, grants, liberties, immunities,
ordinances, permits and easements of the Company in respect of the construction,
maintenance, repair and operation of said systems.

                                    PART II.
                                   [Reserved]


                                    PART III.
                      INDETERMINATE PERMITS AND FRANCHISES.

     All indeterminate  permits,  franchises,  ordinances,  licenses,  and other
authorizations by or from any state, county, municipality, or other governmental
authority,  acquired by the Company after May 1, 1940,  the date of the Original
Mortgage, including particularly,  but not limited to, any indeterminate permits
under the Public Service  Commission  Act of the State of Indiana,  and all Acts
amendatory thereof and supplemental  thereto,  and all right, title and interest
therein now owned by the Company, and all renewals, extensions and modifications
of said  indeterminate  permits,  franchises,  ordinances,  licenses,  and other
authorizations,  and  of  the  indeterminate  permits,  franchises,  ordinances,
licenses,  and  other  authorizations  referred  to in Part VII of the  Granting
Clauses of the Original Mortgage.

                                    PART IV.
                                 OTHER PROPERTY.

     All other  property,  whether  real,  personal or mixed  (except any in the
Mortgage expressly excepted), now owned by the Company and wheresoever situated,
including  (without in anywise  limiting or impairing by the  enumeration of the
same the  scope  and  intent  of the  foregoing  or of any  general  description
contained in the  Mortgage) all lands,  flowage  rights,  water rights,  flumes,
raceways,  dams,  rights-of-way  and roads;  all plants  for the  generation  of
electricity by water, steam and/or other power, power houses, telephone systems,
water systems, power plants, hot water plants, sub-stations, transmission lines,
distribution systems, bridges,  culverts and tracts; all offices,  buildings and
structures and the equipment thereof; all machinery,  engines, boilers, dynamos,
machines,   regulators,   meters,  transformers,   generators  and  motors;  all
appliances whether electrical,  gas or mechanical,  conduits,  cables and lines;
all pipes whether for water, and power, or other purposes;  all mains and pipes,
service  pipes,   fittings,   valves  and  connections,   poles,  wires,  tools,
implements,   apparatus,  furniture  and  chattels;  all  municipal  franchises,
indeterminate  permits,  and other  permits;  all lines for the  transportation,
transmission and/or distribution of electric current, and power or water for any
purpose,  including  towers,  poles,  wires,  cables,  pipes,  conduits  and all
apparatus  for use in  connection  therewith;  all real estate,  lands,  leases,
leaseholds; all contracts,  whether heat, light, power, water or street lighting
contracts;  all  easements,   servitudes,  licenses,  permits,  rights,  powers,
franchises,  privileges,  rights-of-way  and other rights in or relating to real
estate  or the  occupancy  of the  same and  (except  as  hereinafter  or in the
Mortgage expressly excepted) all the right, title and interest of the Company in
and to all other  property  of any kind or nature  appertaining  to and/or  used
and/or  occupied  and/or  enjoyed in connection  with any property  hereinbefore
described or referred to;

     TOGETHER   WITH  all  and  singular  the   tenements,   hereditaments   and
appurtenances  belonging or in anywise appertaining to the aforesaid property or
any part thereof,  with the reversion and  reversions,  remainder and remainders
and  (subject to the  provisions  of Section 64 of the Original  Mortgage),  the
tolls, rents, revenues,  issues, earnings,  income, product and profits thereof,
and all the estate,  right,  title and interest and claim whatsoever,  at law as
well as in equity,  which the Company now has or may hereafter acquire in and to
the aforesaid property, indeterminate permits, franchises,  ordinances, licenses
and other authorizations and every part and parcel thereof.

     SECTION  2.  There  shall be and is hereby  established  a series of bonds,
limited in aggregate principal amount to Thirty Million Dollars ($30,000,000) to
be issued under and secured by the Mortgage, to be designated "5.95% Series, due
2029",  each of which  shall also bear the  descriptive  title  "First  Mortgage
Bonds"; said bonds shall mature on DECEMBER 1, 2029, and shall be issued only as
fully  registered  bonds without  coupons in the  denomination  of five thousand
dollars and any larger  denomination  which is a whole multiple of five thousand
dollars;  they shall bear interest  from the  beginning of the current  interest
period during which each bond is dated, at the rate per annum  designated in the
title  thereof,  payable  semi-annually,  on June 1 and  December 1 of each year
(except that the first interest  payment  thereon shall be made December 1, 2001
for the period from August 1, 2001 through November 30, 2001); and the principal
of, premium,  if any, and interest on said bond shall be payable in lawful money
of the United  States of  America  at the  office of the  Company in the City of
Indianapolis, Indiana, or, if no such office is maintained, at American National
Bank and Trust Company of Chicago,  which is hereby designated and appointed the
office  and  agency of the  Company in the City of  Chicago,  Illinois,  for the
payment of the principal of, premium,  if any, and interest on the 2029 PC Bond,
if necessary,  and for the  registration,  transfer and exchange of such bond as
hereinafter  provided;  all  reference  herein  to the  office  or agency of the
Company in the City of Chicago,  Illinois,  for the payment of the principal of,
premium, if any, and interest on the 2029 PC Bond, or the registration, transfer
or  exchange  thereof,  being to  American  National  Bank and Trust  Company of
Chicago.  In event of the  resignation or inability to act of American  National
Bank and Trust Company of Chicago,  then a successor agent for all such purposes
in the City of Chicago,  Illinois,  shall be appointed by the Board of Directors
of the Company.

     The 2029 PC Bond shall be dated as of the date of  authentication  thereof,
except as otherwise provided in Section 10 of the Original Mortgage.

     The  2029 PC Bond  will be  issued  to  evidence  and  secure a loan to the
Company by the City pursuant to the Loan  Agreement of certain funds  previously
acquired by the City through the issuance of City of Petersburg,  Indiana, Solid
Waste Disposal Revenue Bonds,  Series 1995C  (Indianapolis Power & Light Company
Project)  (the "Series 1995C  Bonds"),  authenticated  and  delivered  under and
pursuant to an  Indenture  of Trust  dated as of  December 1, 1995  (hereinafter
called  the  "City  Indenture"),  by and  between  the City  and Bank One  Trust
Company, National Association,  formerly Bank One, Indianapolis,  NA, as Trustee
(the "City  Trustee").  Pursuant to the City's pledge and assignment of the Loan
Agreement, as set forth in the City Indenture,  the 2029 PC Bond shall be issued
to the City and assigned to the City Trustee.  All of the proceeds of the Series
1995C Bonds were used for the financing of the Facilities at the Plant.

     Upon the notice and in the  manner  and with the  effect  provided  in this
Section 2, the 2029 PC Bond shall be  redeemable  prior to the maturity  thereof
under any one or more of the following circumstances:

(a)  In whole,  at the option of the  Company,  if the  Facilities  or the Plant
     shall have been  damaged or  destroyed to such extent that (i) it cannot be
     reasonably expected, in the opinion of the Company, to be restored within a
     period of six (6) months to the  condition  thereof  immediately  preceding
     such damage or destruction, or (ii) to such extent that the Company, in its
     reasonable  opinion,  is  thereby  prevented  from  carrying  on its normal
     operations  for a period of six (6) months or more, or (iii) to such extent
     that the restoration  thereof would not be, taking into  consideration  the
     net  proceeds  of any  insurance  payable  as a result  of such  damage  or
     destruction, economic in the reasonable opinion of the Company.

(b)  In whole,  at the option of the Company,  if title to, or the temporary use
     of, all or  substantially  all of the  Facilities or the Plant,  shall have
     been taken under the exercise of the power of eminent domain, or should any
     governmental  body or  agency  exercise  any  right  which  it may  have to
     purchase or designate a purchaser of the same,  or should such  property be
     sold to any  governmental  body or agency so that the result of such taking
     or takings is that (i) the Company,  in its reasonable  opinion, is thereby
     prevented  from carrying on its normal  operations of either the Facilities
     or the Plant for a period of six (6) months or more,  (ii) the  restoration
     required as a result of the taking  cannot be reasonably  expected,  in the
     opinion of the Company,  to be completed in a period of six (6) months,  or
     (iii) the restoration  thereof,  taking into consideration the net proceeds
     from such eminent  domain  award,  would not be economic in the  reasonable
     opinion of the Company.

(c)  In whole,  at the option of the Company,  if, as a result of any changes in
     the  Constitution or law of the State of Indiana or the Constitution or law
     of the United States of America or of legislative or administrative  action
     (whether  state or  federal) or by final  decree,  judgment or order of any
     court or administrative body (whether state or federal) the Loan Agreement,
     the Note or the 2029 PC Bond shall,  in the  reasonable  opinion of counsel
     for the  Company,  have  become  void or  unenforceable  or  impossible  of
     performance  in  accordance  with the intent and  purpose of the parties as
     expressed  in the Loan  Agreement;  or  unreasonable  burdens or  excessive
     liabilities  shall,  in the  reasonable  opinion of the Company,  have been
     imposed upon the City or the Company,  with  respect to the  Facilities  or
     operation thereof,  including without limitation federal, state or other ad
     valorem,  property,  income or other taxes not being imposed on the date of
     the Loan  Agreement  other  than ad valorem  taxes  presently  levied  upon
     privately  owned  property  used  for  the  same  general  purpose  as  the
     Facilities.

(d)  In  whole,  at the  option  of the  Company,  if  changes  in the  economic
     availability of raw materials,  operating supplies or facilities  necessary
     for the  operation of the  Facilities  or the Plant shall have  occurred or
     technological  or other  changes  shall  have  occurred  which  render  the
     Facilities uneconomic for use in the reasonable opinion of the Company.

(e)  In part,  at the  option of the  Company,  to the  extent of net  proceeds,
     received from any condemnation  award,  taking or sale as stated herein, if
     title to, or the temporary use of any portion of the Facilities  shall have
     been taken under the exercise of the power of eminent domain, or should any
     governmental  body or  agency  exercise  any  right  which  it may  have to
     purchase or designate a purchaser of the same,  or should such  property be
     sold to any governmental body or agency; provided the Company shall furnish
     to the City and the City Trustee a certificate of an  Independent  Engineer
     (as defined in the Loan Agreement) selected by the Company stating (i) that
     the  property  forming  the part of the  Facilities  that was taken by such
     condemnation,  taking  or  sale  is  not  essential  to  the  character  or
     significance  of the  Facilities,  or (ii)  that the  Facilities  have been
     restored to a condition  substantially  equivalent to their condition prior
     to the taking by such  condemnation,  taking or sale proceedings,  or (iii)
     that  improvements  have been acquired which are suitable for the operation
     of the Facilities as a qualified exempt facility.

(f)  In whole or in part,  at the option of the  Company at any time on or after
     August 1, 2011,  at a price  equal to the  principal  amount of the 2029 PC
     Bond so to be  redeemed  and accrued  interest  to the date of  redemption,
     together  with a premium  equal to a  percentage  of the  principal  amount
     thereof set forth under the heading "Redemption Premium" in the form of the
     2029 PC Bond hereinafter  recited, so long as the Company is not in default
     under the Loan Agreement or the 2029 PC Bond.

(g)  In the event all or substantially all of the mortgaged and pledged property
     under the Mortgage,  or all or substantially  all such property used in the
     business  of   generating,   manufacturing,   transporting,   transmitting,
     distributing or supplying  electricity,  should be taken by exercise of the
     power of eminent domain, or should any governmental body or agency exercise
     any right  which it may have to purchase  or  designate a purchaser  of the
     same, or should such property be sold to any  governmental  body or agency,
     the Company  shall be obligated to redeem the 2029 PC Bond  outstanding  as
     promptly as possible in  accordance  with  paragraph B of Section 69 of the
     Original Mortgage.

(h)  In the event that the Company is notified by the City  Trustee  that (i) an
     event of default under the City  Indenture has occurred and is  continuing,
     and (ii) the City  Trustee has  declared  the  principal  of all the Series
     1995C Bonds then  outstanding  immediately due and payable  pursuant to the
     City Indenture, the Company shall call for redemption, on a redemption date
     selected by it not later than thirty (30) days  following the date on which
     such  notice is  mailed,  the 2029 PC Bond  outstanding,  and shall on such
     redemption date redeem the same; provided,  however,  that such requirement
     of redemption  shall be deemed waived,  if prior to the date fixed for such
     redemption of the 2029 PC Bond (x) such event of default is waived or cured
     as set forth in the City  Indenture,  or (y) there shall have  occurred any
     completed  default (as defined in the  Mortgage)  which affects any bond of
     any series  outstanding  under the Mortgage and which completed default has
     not been cured and made good prior to such  redemption  date,  it being the
     intent of this  proviso  that,  in lieu of such  right to  redemption,  the
     holder of the 2029 PC Bond  shall be  entitled  only to such  rights as are
     available to the holders of bonds of any other series outstanding under the
     Mortgage  in the  event  of  such  completed  default;  and in  case of any
     subsequent  occurrence or  continuance  of the events  described in (i) and
     (ii) of this  Section  2(h),  the  Company  shall have the same  obligation
     (subject to the same proviso) to redeem the 2029 PC Bond.

(i)  In the event the City  Trustee  notifies  the Company and the City that the
     interest  payable on the Series  1995C  Bonds held by persons  other than a
     "substantial user" or a "related person" as those terms are used in Section
     147(a)(2)  of the  Internal  Revenue  Code of 1986,  as  amended,  has been
     determined by a court of competent  jurisdiction  or a formal ruling of the
     Internal Revenue Service to be subject to federal income taxation by reason
     of a breach by the Company of any covenant,  agreement or representation in
     the  Loan  Agreement,  the  Company  shall  call  the  2029  PC  Bond  then
     outstanding  to be redeemed  within one hundred eighty (180) days after the
     date  of  such  notice;   provided,   however,  that  such  requirement  of
     redemption, whether in whole or in part shall be deemed waived if, prior to
     the date fixed for  redemption of the 2029 PC Bond pursuant to this Section
     2(i),  there shall have occurred any  completed  default (as defined in the
     Mortgage)  which  affects  any bond of any  series  outstanding  under  the
     Mortgage and which completed default has not been cured and made good prior
     to such redemption  date, it being the intent of this proviso that, in lieu
     of such  right to  redemption,  the  holder  of the  2029 PC Bond  shall be
     entitled  only to such rights as are  available  to the holders of bonds of
     any  other  series  outstanding  under  the  Mortgage  in the event of such
     completed  default;  but when any such  completed  default  shall have been
     cured and made good,  if interest on the Series  1995C Bonds shall still be
     taxable as  described  above,  the Company  shall have the same  obligation
     (subject to the same proviso) to redeem the 2029 PC Bond within one hundred
     eighty  (180)  days after the  curing  and  making  good of such  completed
     default;  provided  further,  that the Company may call for redemption such
     portion of the 2029 PC Bond, which in the written opinion of an attorney or
     firm of  attorneys  of  nationally  recognized  standing  on the subject of
     municipal  bonds,  would allow the City  Trustee to redeem the Series 1995C
     Bonds in part,  which  redemption  would have the result that the  interest
     payable  on  the  Series  1995C  Bonds  remaining  outstanding  after  such
     redemption in part would not be subject to federal  income  taxation in the
     hands of persons other than a "substantial  user" or a "related  person" as
     those terms are used in Section  147(a)(2) of the Internal  Revenue Code of
     1986, as amended.

     In case of  redemption  of the 2029 PC Bond in  whole  for the  purpose  of
prepayment under the Loan Agreement  pursuant to subsections (a), (b), (c), (d),
(f), (g), (h) or (i) above,  the amounts  payable upon redemption of the 2029 PC
Bond shall be a sum  sufficient,  together with other funds  deposited  with the
City  Trustee and  available  for such  purpose,  to pay the  principal  of (and
premium,  in the case of redemption  pursuant to (f) above), and interest on the
2029 PC Bond then  outstanding  and to pay all reasonable and necessary fees and
expenses of the City Trustee  accrued and to accrue through final payment of the
2029 PC Bond.

     In case of redemption in part pursuant to (e), (f) or (i) above, the amount
payable by the Company under this Forty-Fifth  Supplemental Indenture,  the Loan
Agreement  and the 2029 PC Bond shall be a sum  sufficient,  together with other
funds  deposited  with the Trustee and available  for such  purpose,  to pay the
principal of (and premium in the case of  prepayment  pursuant to (f) above) and
interest on the 2029 PC Bond so to be redeemed,  which sum  together  with other
funds  deposited  with the City Trustee and  available for such purpose shall be
sufficient to pay the principal of, premium,  if any, and interest on the Series
1995C Bonds and to pay all  reasonable  and  necessary  fees and expenses of the
City Trustee accrued and to accrue through such partial prepayment.

     The 2029 PC Bond and the Series 1995C Bonds shall be redeemable at any time
within one hundred eighty (180) days following the event or events  described as
giving rise to an option of the Company to redeem them in subsections  (a), (b),
(c), (d) or (e) above.

     To exercise any of the options  granted to redeem the 2029 PC Bond in whole
or in part or to comply with any obligations to redeem the 2029 PC Bond in whole
or in part imposed in this Section 2, the Company  shall give written  notice of
the date of redemption  to the City  Trustee,  which date shall be not less than
thirty  (30) days nor more  than  sixty  (60)  days from the date the  notice is
mailed.  No further notice,  by publication or otherwise,  shall be required for
redemption  of the 2029 PC  Bond,  and the  requirements  of  Section  59 of the
Mortgage  for  notice by  newspaper  publication  shall not apply to the 2029 PC
Bond.

     At the option of the holder,  the 2029 PC Bond,  upon surrender  thereof at
the  office or agency of the  Company  in  Chicago,  Illinois,  together  with a
written  instrument of transfer in form approved by the Company duly executed by
the holder or by his duly authorized attorney,  shall be exchangeable for a like
aggregate principal amount of fully registered bonds of the same series of other
authorized denominations.

     The 2029 PC Bond will be  nontransferable  except to the City  Trustee  and
successors  thereto,  if  any,  and to the  Company.  To the  extent  that it is
transferable,  it is transferable by the registered holder thereof, in person or
by  attorney  duly  authorized  in  writing,  on the books of the Company at the
office or agency of the Company in the City of Chicago, Illinois, upon surrender
thereof  for  cancellation  at said  office and upon  presentation  of a written
instrument of transfer duly executed.  Thereupon, the Company shall issue in the
name of the transferee,  and the Trustee shall  authenticate and deliver,  a new
registered  2029 PC Bond,  in an  authorized  denomination,  of equal  principal
amount. Any such transfer shall be subject to the terms and conditions specified
in the Mortgage and in this Forty-Fifth Supplemental Indenture.

     The Company  shall not be required to transfer or exchange the 2029 PC Bond
for a period of ten (10) days next  preceding any interest  payment date of said
bond.

     Except as set forth  herein,  no charge  shall be made upon any transfer or
exchange  of any of the  2029 PC Bond  other  than for any tax or taxes or other
governmental charge required to be paid by the Company.

     The 2029 PC Bond  shall be  limited  to an  aggregate  principal  amount of
Thirty Million Dollars ($30,000,000) and shall be issued under the provisions of
Article VII of the Original Mortgage.

     SECTION 3. The 2029 PC Bond,  and the Trustee's  Certificate to be endorsed
thereon, shall be in the following forms, respectively:

                         [FORM OF FACE OF 2029 PC BOND]

     This First Mortgage Bond, 5.95% Series,  due 2029  (hereinafter  called the
"2029 PC Bond") is not  transferable  except to a  successor  trustee  under the
Indenture of Trust dated as of December 1, 1995, between the City of Petersburg,
Indiana and Bank One Trust  Company,  National  Association,  formerly Bank One,
Indianapolis, NA, as the Trustee, or to Indianapolis Power & Light Company.

                       INDIANAPOLIS POWER & LIGHT COMPANY

                   FIRST MORTGAGE BOND, 5.95% Series, Due 2029
                              Due December 1, 2029
No. 1                                                                $30,000,000

     INDIANAPOLIS  POWER & LIGHT COMPANY,  a corporation of the State of Indiana
(hereinafter called the "Company"),  for value received,  hereby promises to pay
Bank One Trust Company,  National Association,  formerly Bank One, Indianapolis,
NA, as the Trustee  (hereinafter  called the "City Trustee") under the Indenture
of Trust  between  the City of  Petersburg,  Indiana  (the  "City") and the City
Trustee,  dated as of  December  1, 1995 (the "City  Indenture")  or  registered
assigns,  on  December  1, 2029,  at the office of the  Company,  in the City of
Indianapolis,  State of Indiana,  or if no such office is maintained at the time
by the Company,  then at the office or agency of the Company for such purpose in
the City of Chicago, State of Illinois,  Thirty Million Dollars ($30,000,000) in
lawful money of the United States of America, and to pay to the registered owner
hereof interest  thereon from the first day of June or the first day of December
next  preceding  the date of this 2029 PC Bond (except  that the first  interest
payment  hereunder  shall be made on December 1, 2001 for the period from August
1,  2001  through  November  30,  2001),  at the  rate of five  and  ninety-five
hundreths  percent  (5.95%)  per annum in like  lawful  money at said  office or
agency on June 1 and  December 1 in each year,  until the  Company's  obligation
with respect to the payment of such principal  shall have been  discharged.  The
interest  payable  hereunder  on  June 1 or  December  1  will  be  paid  to the
registered owner of this 2029 PC Bond at or before the close of business on such
dates,  or if such date shall be a Saturday,  Sunday,  holiday or a day on which
banking  institutions  in the City of  Indianapolis  or the  city of any  paying
agents are authorized by law to close, on or before the close of business on the
next  succeeding  business day on which such banking  institutions  are open for
business.

     REFERENCE IS MADE TO THE FURTHER  PROVISIONS OF THIS 2029 PC BOND SET FORTH
ON THE REVERSE HEREOF. SUCH FURTHER PROVISIONS SHALL, FOR ALL PURPOSES, HAVE THE
SAME EFFECT AS THOUGH FULLY SET FORTH IN THIS PLACE.

     No recourse shall be had for the payment of the principal of or interest on
this  2029 PC Bond  against  any  incorporator  or any past,  present  or future
subscriber to the capital stock, stockholder, officer or director of the Company
or of any  predecessor or successor  corporation,  as such,  either  directly or
through the Company or any predecessor or successor corporation,  under any rule
of law,  statute,  or  constitution  or by the  enforcement of any assessment or
otherwise,  all such  liability  of  incorporators,  subscribers,  stockholders,
officers and directors,  as such,  being waived and released by the terms of the
Mortgage, as herein defined.

     This 2029 PC Bond shall not become  obligatory until American National Bank
and Trust Company of Chicago, the Trustee under the Mortgage, as herein defined,
or its successor thereunder,  shall have signed the form of certificate endorsed
hereon.

     IN WITNESS WHEREOF, INDIANAPOLIS POWER & LIGHT COMPANY has caused this 2029
PC Bond to be signed in its name by its President or one of its Vice Presidents,
by his signature or a facsimile  thereof,  and its corporate  seal to be affixed
hereon,  attested by its Secretary or one of its Assistant  Secretaries,  by his
signature or a facsimile thereof.

                                            INDIANAPOLIS POWER & LIGHT COMPANY

Dated_______________                        By_______________________________
                                                                       President

Attest:
By_____________________________
                  Secretary


                 [FORM OF TRUSTEE'S CERTIFICATE ON 2029 PC BOND]

                              Trustee's Certificate

     This 2029 PC Bond is one of the  bonds,  of the series  herein  designated,
provided  for in the  within-mentioned  Mortgage  and  Forty-Fifth  Supplemental
Indenture thereto.

                                            AMERICAN NATIONAL BANK AND
                                            TRUST COMPANY OF CHICAGO
                                                              Trustee

                                            By_______________________________
                                                     Authorized Signature

<PAGE>
                     [FORM OF REVERSE SIDE OF 2029 PC BOND]

                       INDIANAPOLIS POWER & LIGHT COMPANY

                   FIRST MORTGAGE BOND, 5.95% Series, due 2029
                              Due December 1, 2029

     This 2029 PC Bond is one of an issue of bonds of the  Company,  issuable in
series,  and is one of a series known as its First Mortgage Bonds, 5.95% Series,
due 2029  (herein  called  the "2029 PC Bond")  limited in  aggregate  principal
amount to Thirty Million Dollars  ($30,000,000) and established by a Forty-Fifth
Supplemental  Indenture  dated as of August  1,  2001,  all bonds of all  series
issued and to be issued under and equally secured (except insofar as any sinking
or other fund,  established  in accordance  with the  provisions of the Mortgage
hereinafter  mentioned,  may  afford  additional  security  for the bonds of any
particular  series)  by a Mortgage  and Deed of Trust,  dated as of May 1, 1940,
executed by the Company to American  National Bank and Trust Company of Chicago,
as the Trustee (which Mortgage and Deed of Trust as supplemented and modified by
all  supplemental   indentures  thereto  is  hereinafter   referred  to  as  the
"Mortgage"),  to  which  Mortgage  reference  is made for a  description  of the
property  mortgaged  and  pledged,  the nature and extent of the  security,  the
rights of the  bearers  or  registered  owners of the bonds in  respect  of such
security,  the duties and immunities of the Trustee and the terms and conditions
upon which the bonds are secured.

     This  2029 PC Bond  evidences  and  secures  a loan made by the City to the
Company, pursuant to a Loan Agreement, dated as of December 1, 1995, between the
City and the Company (the "Loan  Agreement").  In order to obtain funds for such
loan, the City issued Thirty Million Dollars  ($30,000,000)  principal amount of
its Solid Waste Disposal Revenue Bonds, Series 1995C (Indianapolis Power & Light
Company  Project) (the "City  Bonds") under and pursuant to the City  Indenture.
The City Bonds are payable from  payments  made by the Company of principal  of,
premium,  if any,  and interest on this 2029 PC Bond and from moneys in the Bond
Fund created under the City Indenture.  The obligation of the Company to pay the
principal  of,  premium,  if any,  and  interest  on this 2029 PC Bond  shall be
discharged  to the extent  that any moneys in said Bond Fund are  available  for
payments  on the City  Bonds  and are  directed  by the  Company  to be  applied
thereto, all as provided in the Forty-Fifth Supplemental Indenture.

     This 2029 PC Bond is not  subject  to  redemption  prior to August 1, 2011,
except as provided in Section 2 of the Forty-Fifth  Supplemental  Indenture,  to
which reference is made for full description of redemption provisions.

     This 2029 PC Bond is subject to  redemption in whole or in part at any time
on or after August 1, 2011,  at the option of the Company,  upon at least thirty
(30)  days  prior  notice,  all  as  provided  in the  Forty-Fifth  Supplemental
Indenture, at a price equal to the principal amount of the 2029 PC Bond so to be
redeemed and accrued interest to the date of redemption, together with a premium
equal to a percentage of the principal  amount thereof set forth below under the
heading "Redemption Premium":

         If Redeemed During the Twelve Months
         Ending With the Thirty-first Day                     Redemption
         Of July of the Year Stated                           Premium
         ----------------------------------------------------------------

         2012                                                 2.0%
         2013                                                 1.5%
         2014                                                 1.0%
         2015                                                 0.5%

and without premium if redeemed after July 31, 2015.

     With the  consent  of the  Company  and to the extent  permitted  by and as
provided in the Mortgage,  the rights and  obligations  of the Company and/or of
the holders of the bonds and/or  coupons  and/or the terms and provisions of the
Mortgage and/or any instruments  supplemental thereto may be modified or altered
by affirmative vote of the holders of at least sixty-six and two-thirds  percent
(66-2/3%)  in principal  amount of the bonds  affected by such  modification  or
alteration then outstanding  under the Mortgage  (excluding  bonds  disqualified
from  voting by reason of the  Company's  interest  therein as  provided  in the
Mortgage);  provided that no such  modification  or alteration  shall permit the
extension of the maturity of the principal of this 2029 PC Bond or the reduction
in the rate of interest hereon or any other modification in the terms of payment
of such  principal  or interest  without the consent of the holder  hereof.  The
principal  hereof may be  declared  or may become due and  payable  prior to the
stated date of maturity hereof, on the conditions, in the manner and at the time
set forth in the Mortgage,  upon the occurrence of a completed default as in the
Mortgage provided.

     No reference herein to the Mortgage,  and no provision of this 2029 PC Bond
or of the Mortgage,  shall alter or impair the obligation of the Company,  which
is  absolute  and  unconditional,  to  pay,  subject  to the  provisions  of the
Forty-Fifth  Supplemental Indenture,  the principal of, and premium, if any, and
interest on this 2029 PC Bond at the place,  at the respective  times and at the
rate and the manner herein prescribed.

     This 2029 PC Bond is issuable only in full  registered form without coupons
in denominations  of Five Thousand Dollars ($5,000) and any larger  denomination
which is a whole multiple of Five Thousand Dollars ($5,000).

     This 2029 PC Bond will be  nontransferable  except to the City  Trustee and
successors  thereto,  if  any,  and to the  Company.  To the  extent  that it is
transferable,  it is transferable by the registered holder thereof, in person or
by  attorney  duly  authorized  in  writing,  on the books of the Company at the
office or agency of the Company in the City of Chicago, Illinois, upon surrender
thereof  for  cancellation  at said  office and upon  presentation  of a written
instrument of transfer duly executed.  Thereupon, the Company shall issue in the
name of the transferee,  and the Trustee shall  authenticate and deliver,  a new
registered  2029 PC Bond,  in an  authorized  denomination,  of equal  principal
amount. Any such transfer shall be subject to the terms and conditions specified
in the Mortgage and in the Forty-Fifth Supplemental Indenture.

     Upon  redemption of this 2029 PC Bond in part and surrender  thereof at the
office or agency of the Company in Chicago,  Illinois, for exchange, the Trustee
shall  authenticate  and deliver a new registered  2029 PC Bond in an authorized
denomination and principal  amount equal to the reduced  principal amount due on
that series after such partial redemption.

                           [END OF 2029 PC BOND FORM]


     SECTION 4. Until the 2029 PC Bond in definitive form is ready for delivery,
the Company  may  execute,  and upon its  request in writing  the Trustee  shall
authenticate  and deliver,  in lieu thereof,  a fully registered 2029 PC Bond in
temporary  form, as provided in Section 15 of the Original  Mortgage.  Such bond
may, in lieu of the statement of the specific  redemption  prices required to be
set  forth  in  such  bond in  definitive  form,  include  a  reference  to this
Forty-Fifth Supplemental Indenture for a statement of such redemption prices.

     SECTION  5.  The  Company  covenants  and  agrees  that  it will  duly  and
punctually pay to the holder of the 2029 PC Bond the principal thereof, premium,
if any,  and  interest  on said bond at the  dates  and place and in the  manner
mentioned therein; provided, however, that:

     (a)  the obligation of the Company to pay the principal of, and premium, if
   any, and interest on the 2029 PC Bond shall be  discharged to the extent that
   any moneys in the Bond Fund created under and pursuant to the City  Indenture
   are available  for the payment of the  principal  of, or premium,  if any, or
   interest  on the Series  1995C  Bonds and are  directed  by the Company to be
   applied to the payment  thereof in the manner  provided in the City Indenture
   on or  prior to the  dates  on  which  the  Company  is  required  to pay the
   principal of, or premium, if any, or interest on the 2029 PC Bond.

     (b)  Except as otherwise  provided in this Section 5, the principal  amount
   of any Series  1995C Bond  acquired by the Company and  delivered to the City
   Trustee,  or acquired by the City  Trustee and  cancelled,  shall be credited
   against the  obligation  of the Company to pay the  principal  of the 2029 PC
   Bond.

As the principal of,  premium,  if any, and interest on the 2029 PC Bond is paid
or deemed paid in full, and upon its receipt by the Company,  such bond shall be
delivered to the Trustee for cancellation. The Company shall promptly inform the
Trustee  of all  payments  made  and  credits  availed  of with  respect  to its
obligations  on the 2029 PC Bond. The Trustee shall not be required to recognize
any payment made or credit availed of with respect to any 2029 PC Bond unless it
has received (a) the bond for cancellation by it, or (b) a certificate signed by
a duly  authorized  officer of the City  Trustee  specifying  the amount of such
payment or credit and the  principal  amount of the 2029 PC Bond with respect to
which the  payment  or credit  was  applied.  In the  absence  of receipt by the
Trustee  of any 2029 PC Bond,  any such  certificate  shall be  controlling  and
conclusive.

     SECTION 6. The  covenant  of the  Company to make  annual  payments  to the
Trustee for a Maintenance and Improvement Fund as contained in Section 41 of the
Original  Mortgage and in the first twenty-four  Supplemental  Indentures to the
Original  Mortgage creating the several series of First Mortgage Bonds presently
outstanding under such Supplemental Indentures shall not apply to nor be for the
benefit of the 2029 PC Bond,  and the Company  reserves  the right,  without any
consent of, or other action by, the holder of the 2029 PC Bond, to amend, modify
or delete the  provisions  of the  Mortgage  relating  to such  Maintenance  and
Improvement Fund and by acceptance of the 2029 PC Bond the holder thereof waives
any right or  privilege  so to consent  or take any other  action  with  respect
thereto.

     SECTION 7. The Company  covenants  that,  so long as the 2029 PC Bond shall
remain  outstanding,  it will comply with all of the provisions of Section 47 of
the Original  Mortgage,  including the provisions with respect to limitations on
dividends and distributions and the purchase and redemption of stock.

     SECTION 8. The Trustee hereby accepts the trusts herein declared,  provided
and created and agrees to perform the same upon the terms and conditions  herein
and in the Mortgage set forth and upon the following terms and conditions:

     The  recitals  contained  herein  and in the  bonds  shall  be taken as the
statements  of the  Company and the Trustee  assumes no  responsibility  for the
correctness of the same. The Trustee makes no representations as to the validity
or adequacy  of the  security  afforded  hereby,  or as to the  validity of this
Forty-Fifth Supplemental Indenture or of the 2029 PC Bond issued hereunder.

     SECTION 9. Whenever in this  Forty-Fifth  Supplemental  Indenture either of
the  parties  hereto  is  named or  referred  to,  this  shall,  subject  to the
provisions  of Article XVII of the Original  Mortgage,  be deemed to include the
successors or assigns of such party,  and all the  covenants  and  agreements in
this  Forty-Fifth  Supplemental  Indenture  contained  by or on  behalf  of  the
Company, or by or on behalf of the Trustee,  shall,  subject as aforesaid,  bind
and inure to the  benefit  of the  respective  successors  and  assigns  of such
parties, whether so expressed or not.

     SECTION 10. Nothing in this Forty-Fifth Supplemental Indenture expressed or
implied,  is intended or shall be construed  to confer upon,  or to give to, any
person,  co-partnership  or  corporation,  other than the parties hereto and the
holders of the bonds and  coupons  outstanding  under the  Mortgage,  any right,
remedy, or claim under or by reason of this Forty-Fifth  Supplemental  Indenture
or any  covenant,  condition  or  stipulation  hereof;  and all  the  covenants,
conditions,   stipulations,   promises  and   agreements  in  this   Forty-Fifth
Supplemental Indenture contained by or on behalf of the Company shall be for the
sole and exclusive benefit of the parties hereto and of the holders of the bonds
and of the coupons outstanding under the Mortgage.

     SECTION 11. The Company  covenants  that all of the terms,  provisions  and
conditions  of the  Mortgage  shall be  applicable  to the  2029 PC Bond  issued
hereunder,  except as herein  otherwise  provided and except insofar as the same
may be  inconsistent  with  the  provisions  of  this  Forty-Fifth  Supplemental
Indenture.

     SECTION 12. This Forty-Fifth  Supplemental  Indenture is dated as of August
1, 2001,  although  executed and  delivered  on the date of the  acknowledgement
hereof by the Trustee;  and shall be  simultaneously  executed and  delivered in
several counterparts,  and all such counterparts executed and delivered, each as
an original, shall constitute but one and the same instrument.

     IN WITNESS WHEREOF,  INDIANAPOLIS POWER & LIGHT COMPANY, party of the first
part, has caused its corporate name to be hereunto  affixed and this  instrument
to be signed and  acknowledged  by its  President or a  Vice-President,  and its
corporate  seal  to be  hereto  affixed  and  attested  by its  Secretary  or an
Assistant Secretary, for and in its behalf, and AMERICAN NATIONAL BANK AND TRUST
COMPANY  OF  CHICAGO,  party of the  second  part,  as  Trustee,  has caused its
corporate  name to be  hereunto  affixed  and this  instrument  to be signed and
acknowledged  by one of its  Authorized  Officers,  and its corporate seal to be
hereto  affixed and attested by one of its  Authorized  Officers,  all as of the
day, month and year first above written.


                                            INDIANAPOLIS POWER & LIGHT
                                            COMPANY,


                                            By /s/WILLIAM H. HENLEY
                                              ---------------------------------
(SEAL)                                         WILLIAM H. HENLEY,
                                               President
Attest:

By: /s/WILLIAM R. DODDS
   -------------------------------
    WILLIAM R. DODDS,
    Secretary
                                            AMERICAN NATIONAL BANK AND
                                            TRUST COMPANY OF CHICAGO


                                            By /s/ROBERT M. SELANGOWSKI
                                              ----------------------------------
                                               ROBERT M. SELANGOWSKI,
                                               Authorized Officer
Attest:
                                                                          (SEAL)

By: /s/F. HENRY KLESCHEN
   -------------------------------
    F. HENRY KLESCHEN,
    Authorized Officer
<PAGE>

STATE OF INDIANA  )
                  )  SS:
COUNTY OF MARION  )

     On this 26th day of July,  in the year 2001,  before me, a Notary Public in
and for the County  and State  aforesaid,  personally  came  WILLIAM H.  HENLEY,
President  and  WILLIAM  R.  DODDS,  Secretary,  of  Indianapolis  Power & Light
Company,  one of the corporations  described in and which executed the foregoing
instrument,  to me  personally  known  and  known  to me  personally  to be such
President  and  Secretary,  respectively.  Said WILLIAM H. HENLEY and WILLIAM R.
DODDS being by me severally  duly sworn did depose and say that the said WILLIAM
H.  HENLEY  resides  in Marion  County,  Indiana  and the said  WILLIAM R. DODDS
resides in Fulton County, Illinois; that said WILLIAM H. HENLEY is President and
said WILLIAM R. DODDS is Secretary of said  Indianapolis  Power & Light Company;
that each of them knows the corporate  seal of said  corporation;  that the seal
affixed to said  instrument  and  bearing the name of said  corporation  is such
corporate  seal;  that it was so affixed by order of the Board of  Directors  of
said  corporation;  and that each of them signed his name thereto by like order;
and each of them acknowledged the execution of said instrument on behalf of said
corporation to be his free and voluntary act and deed and the free and voluntary
act and deed of said corporation, for the uses and purposes therein set forth.

     IN WITNESS  WHEREOF,  I have  hereunto  set my hand and affixed my official
seal this 26th day of July, 2001.


                                                /s/DINAH L. KIRKHAM
                                                --------------------------------
                                                DINAH L. KIRKHAM,
                                                        Notary Public

My Commission Expires:
         June 23, 2008

My County of Residence is:
         Johnson
                                                                 (NOTARIAL SEAL)
<PAGE>

STATE OF ILLINOIS )
                  )  SS:
COUNTY OF COOK    )

     On this 26th day of July,  in the year 2001,  before me, a Notary Public in
and for the County and State  aforesaid,  personally came ROBERT M.  SELANGOWSKI
and F. HENRY KLESCHEN,  Authorized  Officers of American National Bank and Trust
Company of Chicago, one of the corporations  described in and which executed the
foregoing  instrument,  to me personally  known and known to me personally to be
such  Authorized  Officers.  Said ROBERT M.  SELANGOWSKI  and F. HENRY KLESCHEN,
being  by me  severally  sworn  did  depose  and say that  the  said  ROBERT  M.
SELANGOWSKI  resides in Lansing,  Illinois,  and that the said F. HENRY KLESCHEN
resides in Evanston, Illinois; that said ROBERT M. SELANGOWSKI and said F. HENRY
KLESCHEN,  are  Authorized  Officers of said  American  National  Bank and Trust
Company  of  Chicago;  that  each  of  them  knows  the  corporate  seal of said
corporation;  that the seal affixed to said  instrument  and bearing the name of
said  corporation is such corporate seal; that it was so affixed by authority of
the Board of  Directors of said  corporation;  that each of them signed his name
thereto by like authority;  and each of them  acknowledged the execution of said
instrument  on behalf of said  corporation  to be his free and voluntary act and
deed and the free and voluntary act and deed of said  corporation,  for the uses
and purposes therein set forth.

     IN WITNESS  WHEREOF,  I have  hereunto  set my hand and affixed my official
seal this 26th day of July, 2001.

                                                /s/KATHLEEN A. WHITE
                                                --------------------------------
                                                KATHLEEN A. WHITE,
                                                      Notary Public
My Commission Expires:
         February 9, 2002
My County of Residence is:
         Cook

(NOTARIAL SEAL)


                         This instrument was prepared by
                                 BRIANE M. HOUSE
<PAGE>

                                    RECORDING DATA

          Forty-Fifth Supplemental Indenture Dated as of August 1, 2001


                                                    Instrument         Recording
County            Record...         Page             No.               Date
--------------------------------------------------------------------------------


Bartholomew       ---               ---              200100009898      7/27/2001
Boone             ---               ---              0109137           7/27/2001
Daviess           ---               ---              01-3598           7/27/2001
Gibson            ---               ---              200100005590      7/27/2001
Greene            Inden. Bk. 27     71-97            200100004076      7/27/2001
Hamilton          ---               ---              200100046497      7/27/2001
Hancock           ---               ---              0110424           7/27/2001
Hendricks         Mtg. Rec. 261     762-788          200100021809      7/27/2001
Johnson           ---               ---              2001-022711       7/27/2001
Knox              Mtg. Rec. 554     570-596          5737              7/27/2001
Madison           ---               ---              200117486         7/27/2001
Marion            ---               ---              2001-0130010      7/27/2001
Monroe            ---               ---              2001015473        7/27/2001
Morgan            ---               ---              20111811          7/27/2001
Owen              Mtg. Rec. IC      550-576          138716            7/27/2001
Pike              Mtg. Rec. 306     296-322          01-1785           7/27/2001
Putnam            ---               ---              2001005423        7/27/2001
Shelby            ---               ---              0106332           7/27/2001
Sullivan          Mtg. Rec. 258     979              012793            7/27/2001
Switzerland       Mtg. Rec. 133     27               8808              7/27/2001


<PAGE>

                                                                  Exhibit 4.4.16

                                                                [CONFORMED COPY]
================================================================================







                       INDIANAPOLIS POWER & LIGHT COMPANY
                                       TO
                        AMERICAN NATIONAL BANK AND TRUST
                               COMPANY OF CHICAGO
                                                Trustee

                                  -------------

                       Forty-Sixth Supplemental Indenture

                                  -------------



                           Dated as of August 1, 2001


                       ESTABLISHING FIRST MORTGAGE BONDS,
                             5.95% Series, Due 2030





================================================================================
<PAGE>


                               TABLE OF CONTENTS*

                                       of
                       FORTY-SIXTH SUPPLEMENTAL INDENTURE
                                       of
                       INDIANAPOLIS POWER & LIGHT COMPANY


                                                                            Page

PARTIES........................................................................1
RECITALS ......................................................................1
SECTION 1       Granting clauses...............................................3
                    Part I   Electric Distributing Systems.....................4
                    Part II Reserved...........................................4
                    Part III Indeterminate Permits and Franchises..............4
                    Part IV  Other Property....................................5
                    General and after-acquired title...........................6
SECTION 2       Designation of Forty-Sixth series of bonds and kind and
                    denominations thereof .....................................6
                Designation of Company or American National Bank and Trust
                    Company of Chicago as paying agent.........................6
                Purpose of bonds...............................................7
                Redemption of bonds............................................7
                Exchange of bonds.............................................12
                Transfer of bonds.............................................12
                Series limited to $17,350,000.................................13
SECTION 3       Form of fully registered bond.................................13
                Form of Trustee's certificate on bonds........................15
SECTION 4       Temporary bonds...............................................19
SECTION 5       Payment of principal and interest; credits....................19
SECTION 6       Annual Payments for Maintenance and Improvement Fund..........20
SECTION 7       Compliance with Section 47 of Original Mortgage with
                   respect to dividend restrictions...........................20
SECTION 8       Acceptance of trusts by Trustee and conditions of
                   Acceptance.................................................20
-------------------
*    Table of Contents is not part of the Forty-Sixth Supplemental Indenture and
     should not be considered  such. It is included  herein only for purposes of
     convenient reference.

<PAGE>


                                                                            Page

SECTION 9         Successors and assigns......................................20
SECTION 10        Limitation of rights hereunder..............................21
SECTION 11        Compliance with terms, provisions
                        and conditions of Mortgage............................21
SECTION 12        Execution in counterparts...................................21

TESTIMONIUM...................................................................22
SIGNATURES AND SEALS..........................................................22
ACKNOWLEDGEMENTS..............................................................22

<PAGE>


     THIS  FORTY-SIXTH  SUPPLEMENTAL  INDENTURE,  dated as of  August  1,  2001,
between  INDIANAPOLIS  POWER & LIGHT  COMPANY,  a  corporation  of the  State of
Indiana,  hereinafter  sometimes  called the "Company," party of the first part,
and AMERICAN  NATIONAL  BANK AND TRUST  COMPANY OF CHICAGO,  a national  banking
association,  as Trustee,  hereinafter  sometimes called the "Trustee," party of
the second part;

     Whereas, the Company by a Mortgage and Deed of Trust (hereinafter sometimes
called  the  "Original  Mortgage"  when  referred  to as  existing  prior to any
supplement thereto or modification  thereof, and the "Mortgage" when referred to
as now or heretofore supplemented and modified) dated as of May 1, 1940, made to
said American National Bank and Trust Company of Chicago,  as Trustee, to secure
the  payment of the bonds  issued from time to time under the  Mortgage  for the
purposes of and subject to the  limitations  specified in the  Mortgage,  and to
secure the  performance  of the  covenants  therein  contained,  conveyed to the
Trustee  thereunder  upon certain  trusts,  terms and  conditions,  and with and
subject to certain provisos and covenants  therein  contained,  all and singular
the  property,  rights and  franchises  which the  Company  then owned or should
thereafter  acquire,  excepting the property  expressly excepted by the terms of
the Original Mortgage or any indenture  supplemental  thereto, to which Mortgage
reference is hereby made for greater certainty; and

     WHEREAS,  the  Original  Mortgage  has been  supplemented  and  modified by
supplemental  indentures  dated as of May 1, 1942, as of February 1, 1948, as of
April 1, 1949, as of October 1, 1949 (two),  as of February 1, 1951, as of March
1, 1953,  as of June 1, 1956,  as of March 1, 1958, as of October 1, 1960, as of
August 1, 1964, as of April 1, 1966, as of May 1, 1967, as of May 1, 1968, as of
October 1, 1970,  as of March 1, 1972,  as of March 15, 1973, as of February 15,
1974, as of August 15, 1974, as of September 15, 1975, as of June 1, 1976, as of
July 1, 1976,  as of August 1, 1977,  as of September  1, 1978,  as of August 1,
1981 (two),  as of November 1, 1983,  as of November 1, 1984,  as of December 1,
1984,  as of September 1, 1985, as of October 1, 1986, as of June 1, 1989, as of
August 1, 1989,  as of October 15,  1991,  as of August 1, 1992,  as of April 1,
1993, as of October 1, 1993 (two),  as of February 1, 1994 (two),  as of January
15, 1995, as of October 1, 1995 and as of August 1, 2001 (three); and

     WHEREAS,  Section 8 of the Original Mortgage provides,  among other things,
that the form of each series of bonds  (other  than the initial  issue of bonds)
issued  thereunder  shall be  established by an indenture  supplemental  thereto
authorized by resolution of the Board of Directors of the Company,  and that the
form of each series, as established by the Board of Directors, shall specify the
descriptive  title of the bonds and various  other terms  thereof,  and may also
contain such other  provisions as the Board of Directors may, in its discretion,
cause to be inserted therein expressing or referring to the terms and conditions
upon which such bonds are to be issued and secured  under the Original  Mortgage
or any indenture supplemental thereto or in modification thereof; and

     WHEREAS,  the Company entered into a Loan Agreement,  dated as of September
1, 1999, as amended and  supplemented  by the First  Supplement and Amendment to
Loan Agreement dated as of August 1, 2001 (together hereinafter called the "Loan
Agreement") with the Indiana Development Finance Authority (the "Authority"), in
order to obtain funds for the  refunding of the  aggregate  principal  amount of
Twenty Three  Million Five Hundred  Thousand  ($23,500,000)  Indiana  Employment
Development  Commission  (the  "Commission")  Exempt  Facilities  Revenue Bonds,
Series  1989  (Indianapolis  Power  &  Light  Company  Project)  issued  by  the
Commission  pursuant to related  loan  agreements  to finance  the  acquisition,
construction,   installation   and  equipping  of  certain   pollution   control
facilities,  sewage  facilities,  solid  waste  disposal  facilities  and  local
district  heating or cooling  facilities (the  "Project") at various  generating
stations,  a service  center  and  service  area of  Indianapolis  Power & Light
Company located  throughout the State of Indiana and the issuance of $23,500,000
(of which  $17,350,000  remain  outstanding)  aggregate  principal amount of the
Authority's Exempt Facilities Revenue Refunding Bonds, Series 1999 (Indianapolis
Power & Light Company Project) (the "Bonds"); and

     WHEREAS, the Company has elected to convert the applicable interest rate on
the Bonds to the Long Term  Interest  Rate  effective as of August 1, 2001,  and
pursuant to the Loan Agreement,  the Company has agreed to issue a series of its
bonds under the Mortgage and this Forty-Sixth Supplemental Indenture in order to
evidence and secure its indebtedness under the Loan Agreement; and

     WHEREAS,  the  Company  now  desires  to  provide  for  the  establishment,
execution,  authentication  and delivery under the Mortgage of bonds of a series
to be known as its "First Mortgage Bonds,  5.95% Series, due 2030" (the bonds of
said  series  being  hereinafter  sometimes  referred to as the "2030 PC Bond"),
limited to the  aggregate  principal  amount of Seventeen  Million Three Hundred
Fifty Thousand Dollars ($17,350,000); and

     WHEREAS,  all  things  necessary  to make  the  2030  PC  Bond  hereinafter
described,  when duly executed by the Company and authenticated and delivered by
the Trustee, a valid,  binding and legal obligation of the Company,  and to make
this  Forty-Sixth   Supplemental   Indenture  a  valid  and  binding   agreement
supplemental to the Original Mortgage, have been done and performed; and

     WHEREAS,  the  execution  and  delivery by the Company of this  Forty-Sixth
Supplemental  Indenture,  and the  terms  of the 2030 PC Bond,  have  been  duly
authorized by the Board of Directors of the Company by  appropriate  resolutions
of said Board; and

     WHEREAS,  it is provided in and by the Original  Mortgage  that the Company
will execute and deliver such  further  instruments  and do such further acts as
may be  necessary  or proper to carry out more  effectively  the purposes of the
Mortgage,  and to make  subject  to the lien  thereof  any  property  thereafter
acquired and intended to be subject to the lien thereof; and

     WHEREAS,  the Company has,  since the date of execution and delivery of the
Original  Mortgage,   purchased  and  acquired  property  and  desires  by  this
Forty-Sixth  Supplemental  Indenture  specifically to convey to the Trustee such
property  for the better  protection  and security of the bonds issued and to be
issued under the Original Mortgage, or any indenture supplemental thereof;

     NOW,  THEREFORE,  THIS INDENTURE  WITNESSETH  that, in consideration of the
premises and of the acceptance or purchase of the 2030 PC Bond by the registered
owners thereof, and of the sum of one dollar,  lawful money of the United States
of America,  to the Company duly paid by the Trustee at or before the  execution
and delivery of this Forty-Sixth  Supplemental Indenture, the receipt whereof is
hereby  acknowledged,  the Company and the Trustee,  respectively,  have entered
into, executed and delivered this Forty-Sixth  Supplemental  Indenture,  for the
uses and purposes hereinafter expressed, that is to say:

     SECTION 1. The Company has granted,  bargained,  sold, released,  conveyed,
assigned, transferred,  mortgaged, pledged, set over and confirmed, and by these
presents does grant, bargain, sell, release, convey, assign, transfer, mortgage,
pledge,  set over and confirm (subject,  however,  to permitted  encumbrances as
defined in the Original  Mortgage),  unto said American  National Bank and Trust
Company of Chicago,  as Trustee,  as herein provided,  and its successors in the
trusts declared in the Original Mortgage and herein, all of the property,  real,
personal  and mixed,  tangible  and  intangible,  of every kind,  character  and
description  which the Company has acquired  since the execution and delivery of
the  Original  Mortgage and now owns  (except  property,  rights and assets of a
character  similar to that  excluded from the lien and operation of the Mortgage
by the Granting  Clauses of the Original  Mortgage,  which property,  rights and
assets are excluded  from the lien and  operation  of the  Mortgage  only to the
extent  provided  therein),   including,  but  without  otherwise  limiting  the
generality of the foregoing,  the following  described  property situated within
the State of Indiana:

                                     PART I.
                         ELECTRIC DISTRIBUTING SYSTEMS.

     All electric  distributing  systems of the Company acquired by it after May
1, 1940,  the date of the  Original  Mortgage,  and  located in the  Counties of
Bartholomew,  Boone, Daviess,  Gibson,  Greene,  Hamilton,  Hancock,  Hendricks,
Johnson,  Knox, Madison,  Marion,  Monroe,  Morgan, Owen, Pike, Putnam,  Shelby,
Sullivan and Switzerland,  State of Indiana;  and any additions to or extensions
of any  such  systems,  together  with  the  buildings,  erections,  structures,
transmission lines, power stations, sub-stations,  engines, boilers, condensers,
pumps, turbines,  machinery,  tools, conduits,  manholes,  insulators,  dynamos,
motors,  lamps, cables,  wires, poles,  towers,  cross-arms,  piers,  abutments,
switchboard   equipment,    meters,    appliances,    instruments,    apparatus,
appurtenances,  maps, records, ledgers, contracts, facilities and other property
or  equipment  used or provided  for use in  connection  with the  construction,
maintenance, repair and operation thereof; together also with all of the rights,
privileges, rights-of-way,  franchises, licenses, grants, liberties, immunities,
ordinances, permits and easements of the Company in respect of the construction,
maintenance, repair and operation of said systems.


                                    PART II.
                                   [Reserved]


                                    PART III.
                      INDETERMINATE PERMITS AND FRANCHISES.

     All indeterminate  permits,  franchises,  ordinances,  licenses,  and other
authorizations by or from any state, county, municipality, or other governmental
authority,  acquired by the Company after May 1, 1940,  the date of the Original
Mortgage, including particularly,  but not limited to, any indeterminate permits
under the Public Service  Commission  Act of the State of Indiana,  and all Acts
amendatory thereof and supplemental  thereto,  and all right, title and interest
therein now owned by the Company, and all renewals, extensions and modifications
of said  indeterminate  permits,  franchises,  ordinances,  licenses,  and other
authorizations,  and  of  the  indeterminate  permits,  franchises,  ordinances,
licenses,  and  other  authorizations  referred  to in Part VII of the  Granting
Clauses of the Original Mortgage.

                                    PART IV.
                                 OTHER PROPERTY.

     All other  property,  whether  real,  personal or mixed  (except any in the
Mortgage expressly excepted), now owned by the Company and wheresoever situated,
including  (without in anywise  limiting or impairing by the  enumeration of the
same the  scope  and  intent  of the  foregoing  or of any  general  description
contained in the  Mortgage) all lands,  flowage  rights,  water rights,  flumes,
raceways,  dams,  rights-of-way  and roads;  all plants  for the  generation  of
electricity by water, steam and/or other power, power houses, telephone systems,
water systems, power plants, hot water plants, sub-stations, transmission lines,
distribution systems, bridges,  culverts and tracts; all offices,  buildings and
structures and the equipment thereof; all machinery,  engines, boilers, dynamos,
machines,   regulators,   meters,  transformers,   generators  and  motors;  all
appliances whether electrical,  gas or mechanical,  conduits,  cables and lines;
all pipes whether for water, and power, or other purposes;  all mains and pipes,
service  pipes,   fittings,   valves  and  connections,   poles,  wires,  tools,
implements,   apparatus,  furniture  and  chattels;  all  municipal  franchises,
indeterminate  permits,  and other  permits;  all lines for the  transportation,
transmission and/or distribution of electric current, and power or water for any
purpose,  including  towers,  poles,  wires,  cables,  pipes,  conduits  and all
apparatus  for use in  connection  therewith;  all real estate,  lands,  leases,
leaseholds; all contracts,  whether heat, light, power, water or street lighting
contracts;  all  easements,   servitudes,  licenses,  permits,  rights,  powers,
franchises,  privileges,  rights-of-way  and other rights in or relating to real
estate  or the  occupancy  of the  same and  (except  as  hereinafter  or in the
Mortgage expressly excepted) all the right, title and interest of the Company in
and to all other  property  of any kind or nature  appertaining  to and/or  used
and/or  occupied  and/or  enjoyed in connection  with any property  hereinbefore
described or referred to;

     Together   with  all  and  singular  the   tenements,   hereditaments   and
appurtenances  belonging or in anywise appertaining to the aforesaid property or
any part thereof,  with the reversion and  reversions,  remainder and remainders
and  (subject to the  provisions  of Section 64 of the Original  Mortgage),  the
tolls, rents, revenues,  issues, earnings,  income, product and profits thereof,
and all the estate,  right,  title and interest and claim whatsoever,  at law as
well as in equity,  which the Company now has or may hereafter acquire in and to
the aforesaid property, indeterminate permits, franchises,  ordinances, licenses
and other authorizations and every part and parcel thereof.

     SECTION  2.  There  shall be and is hereby  established  a series of bonds,
limited in aggregate  principal amount to Seventeen  Million Three Hundred Fifty
Thousand  Dollars  ($17,350,000) to be issued under and secured by the Mortgage,
to be designated  "5.95%  Series,  due 2030",  each of which shall also bear the
descriptive  title "First Mortgage Bonds";  said bonds shall mature on AUGUST 1,
2030, and shall be issued only as fully  registered bonds without coupons in the
denomination  of five thousand  dollars and any larger  denomination  which is a
whole  multiple of five  thousand  dollars;  they shall bear  interest  from the
beginning of the current interest period during which each bond is dated, at the
rate per  annum  designated  in the title  thereof,  payable  semi-annually,  on
February 1 and August 1 of each year  (except  that the first  interest  payment
thereon  shall be made  February  1,  2002 for the  period  from  August 1, 2001
through January 31, 2002);  and the principal of, premium,  if any, and interest
on said bond shall be payable in lawful money of the United States of America at
the office of the Company in the City of Indianapolis,  Indiana,  or, if no such
office is  maintained,  at American  National Bank and Trust Company of Chicago,
which is hereby designated and appointed the office and agency of the Company in
the City of Chicago,  Illinois, for the payment of the principal of, premium, if
any, and interest on the 2030 PC Bond, if necessary,  and for the  registration,
transfer and exchange of such bond as hereinafter provided; all reference herein
to the office or agency of the Company in the City of Chicago, Illinois, for the
payment of the principal of, premium,  if any, and interest on the 2030 PC Bond,
or the registration,  transfer or exchange  thereof,  being to American National
Bank and Trust Company of Chicago.  In event of the  resignation or inability to
act of American  National  Bank and Trust  Company of Chicago,  then a successor
agent for all such purposes in the City of Chicago, Illinois, shall be appointed
by the Board of Directors of the Company.

     The 2030 PC Bond shall be dated as of the date of  authentication  thereof,
except as otherwise provided in Section 10 of the Original Mortgage.

     The  2030 PC Bond  will be  issued  to  evidence  and  secure a loan to the
Company  by the  Authority  pursuant  to the Loan  Agreement  of  certain  funds
previously acquired by the Authority through the issuance of Indiana Development
Finance  Authority  Exempt  Facilities  Revenue  Refunding  Bonds,  Series  1999
(Indianapolis  Power  &  Light  Company  Project)  (the  "Series  1999  Bonds"),
authenticated and delivered under and pursuant to an Indenture of Trust dated as
of September 1, 1999, as amended and  supplemented  by the First  Supplement and
Amendment to Indenture of Trust dated as of August 1, 2001 (together hereinafter
called the "Authority Indenture"), by and between National City Bank of Indiana,
as  Trustee  (the  "Authority  Trustee")  and  the  Authority.  Pursuant  to the
Authority's  pledge and  assignment of the Loan  Agreement,  as set forth in the
Authority  Indenture,  the 2030 PC Bond  shall be  issued to the  Authority  and
assigned to the Authority Trustee.  All of the proceeds of the Series 1999 Bonds
were used for the  refunding of the aggregate  principal  amount of Twenty Three
Million  Five  Hundred  Thousand   ($23,500,000)   of  the  Indiana   Employment
Development  Commission  (the  "Commission")  Exempt  Facilities  Revenue Bonds,
Series  1989  (Indianapolis  Power  &  Light  Company  Project)  issued  by  the
Commission pursuant to applicable loan agreements.

     Upon the notice and in the  manner  and with the  effect  provided  in this
Section 2, the 2030 PC Bond shall be  redeemable  prior to the maturity  thereof
under any one or more of the following circumstances:

(a)  In part,  at the option of the  Company,  if any Project  component  or the
     facilities  serviced  thereby  shall have been damaged or destroyed to such
     extent  that (i) it cannot be  reasonably  expected,  in the opinion of the
     Company,  to be restored within a period of six (6) months to the condition
     thereof immediately  preceding such damage or destruction,  or (ii) to such
     extent that the Company,  in its reasonable  opinion,  is thereby prevented
     from  carrying on its normal  operations  for a period of six (6) months or
     more,  or (iii) to such extent that the  restoration  thereof would not be,
     taking into  consideration  the net proceeds of any insurance  payable as a
     result of such damage or destruction, economic in the reasonable opinion of
     the Company.

(b)  In part,  at the option of the Company,  if title to, or the  temporary use
     of, all or  substantially  all of any Project  component or the  facilities
     serviced thereby,  shall have been taken under the exercise of the power of
     eminent  domain,  or should any  governmental  body or agency  exercise any
     right which it may have to purchase or  designate a purchaser  of the same,
     or should such property be sold to any governmental  body or agency so that
     the  result  of such  taking or  takings  is that (i) the  Company,  in its
     reasonable  opinion,  is  thereby  prevented  from  carrying  on its normal
     operations  for a period of six (6)  months or more,  (ii) the  restoration
     required as a result of the taking  cannot be reasonably  expected,  in the
     opinion of the Company,  to be completed in a period of six (6) months,  or
     (iii) the restoration  thereof,  taking into consideration the net proceeds
     from such eminent  domain  award,  would not be economic in the  reasonable
     opinion of the Company.

(c)  In whole,  at the option of the Company,  if, as a result of any changes in
     the  Constitution or law of the State of Indiana or the Constitution or law
     of the United States of America or of legislative or administrative  action
     (whether  state or  federal) or by final  decree,  judgment or order of any
     court or administrative body (whether state or federal) the Loan Agreement,
     the Note or the 2030 PC Bond shall,  in the  reasonable  opinion of counsel
     for the  Company,  have  become  void or  unenforceable  or  impossible  of
     performance  in  accordance  with the intent and  purpose of the parties as
     expressed  in the Loan  Agreement;  or  unreasonable  burdens or  excessive
     liabilities  shall,  in the  reasonable  opinion of the Company,  have been
     imposed upon the  Authority or the Company,  with respect to the Project or
     operation thereof,  including without limitation federal, state or other ad
     valorem,  property,  income or other taxes not being imposed on the date of
     the Loan  Agreement  other  than ad valorem  taxes  presently  levied  upon
     privately owned property used for the same general purpose as the Project.

(d)  In  part,  at the  option  of  the  Company,  if  changes  in the  economic
     availability of raw materials,  operating supplies or facilities  necessary
     for the operation of any Project  component or facilities  serviced thereby
     shall have occurred or  technological  or other changes shall have occurred
     which render the facilities uneconomic for use in the reasonable opinion of
     the Company.

(e)  In part,  at the  option of the  Company,  to the  extent of net  proceeds,
     received from any condemnation  award,  taking or sale as stated herein, if
     title to, or the  temporary  use of any portion of the  Project  shall have
     been taken under the exercise of the power of eminent domain, or should any
     governmental  body or  agency  exercise  any  right  which  it may  have to
     purchase or designate a purchaser of the same,  or should such  property be
     sold to any governmental body or agency; provided the Company shall furnish
     to the Authority and the Authority  Trustee a certificate of an Independent
     Engineer (as defined in the Loan Agreement) selected by the Company stating
     (i) that the  property  forming the part of the  Project  that was taken by
     such  condemnation,  taking or sale is not  essential  to the  character or
     significance of the Project, or (ii) that the Project have been restored to
     a condition substantially equivalent to their condition prior to the taking
     by  such   condemnation,   taking  or  sale  proceedings,   or  (iii)  that
     improvements have been acquired which are suitable for the operation of the
     Project as qualified exempt facilities.

(f)  In whole or in part,  at the option of the  Company at any time on or after
     August 1, 2011,  at a price  equal to the  principal  amount of the 2030 PC
     Bond so to be  redeemed  and accrued  interest  to the date of  redemption,
     together  with a premium  equal to a  percentage  of the  principal  amount
     thereof set forth under the heading "Redemption Premium" in the form of the
     2030 PC Bond hereinafter  recited, so long as the Company is not in default
     under the Loan Agreement or the 2030 PC Bond.

(g)  In the event all or substantially all of the mortgaged and pledged property
     under the Mortgage,  or all or substantially  all such property used in the
     business  of   generating,   manufacturing,   transporting,   transmitting,
     distributing or supplying  electricity,  should be taken by exercise of the
     power of eminent domain, or should any governmental body or agency exercise
     any right  which it may have to purchase  or  designate a purchaser  of the
     same, or should such property be sold to any  governmental  body or agency,
     the Company  shall be obligated to redeem the 2030 PC Bond  outstanding  as
     promptly as possible in  accordance  with  paragraph B of Section 69 of the
     Original  Mortgage.

(h)  In the event that the Company is notified by the Authority Trustee that (i)
     an event of default  under the  Authority  Indenture  has  occurred  and is
     continuing,  and (ii) the  Authority  Trustee has declared the principal of
     all the Series  1999 Bonds then  outstanding  immediately  due and  payable
     pursuant to the Authority Indenture, the Company shall call for redemption,
     on a  redemption  date  selected  by it not  later  than  thirty  (30) days
     following  the  date on  which  such  notice  is  mailed,  the 2030 PC Bond
     outstanding,  and shall on such redemption date redeem the same;  provided,
     however,  that such  requirement of redemption  shall be deemed waived,  if
     prior to the date  fixed for such  redemption  of the 2030 PC Bond (x) such
     event  of  default  is  waived  or  cured  as set  forth  in the  Authority
     Indenture,  or (y) there  shall have  occurred  any  completed  default (as
     defined in the Mortgage)  which affects any bond of any series  outstanding
     under the Mortgage and which completed  default has not been cured and made
     good prior to such  redemption  date,  it being the intent of this  proviso
     that, in lieu of such right to  redemption,  the holder of the 2030 PC Bond
     shall be entitled  only to such rights as are  available  to the holders of
     bonds of any other  series  outstanding  under the Mortgage in the event of
     such  completed  default;  and in  case  of any  subsequent  occurrence  or
     continuance  of the events  described in (i) and (ii) of this Section 2(h),
     the Company shall have the same obligation (subject to the same proviso) to
     redeem the 2030 PC Bond.

(i)  The  Company  shall call the 2030 PC Bond then  outstanding  to be redeemed
     within one hundred eighty (180) days after the date of the Company receives
     written notice from a bondholder,  a beneficial owner or former  bondholder
     or former  beneficial owner, the Authority Trustee or the tender agent of a
     final determination by the Internal Revenue Service or a court of competent
     jurisdiction  that,  as a result of a failure by the Company to perform any
     of  its  agreements  in  the  Agreement  or  the  inaccuracy  of any of its
     representations  in the  Agreement,  the interest paid or to be paid on any
     Series  1999 Bond  (except  to a  "substantial  user" of the  Project  or a
     "related  person" as those terms are used in Section 147(a) of the Internal
     Revenue Code of 1986, as amended, (the "Code")) is or was includable in the
     gross  income of the  Series  1999  Bond's  owner for  federal  income  tax
     purposes (a "Determination of Taxability").  No such  determination will be
     considered   final  unless  the  bondholder,   beneficial   owner,   former
     bondholder,  or former beneficial owner involved in the determination  give
     the Company,  the  Authority  Trustee and the tender  agent prompt  written
     notice  of  the   commencement   of  the   proceedings   resulting  in  the
     determination and offers the Company,  subject to the Company's agreeing to
     pay all  reasonable  expenses of the proceeding and to indemnify the holder
     against all liabilities that might result in connection with the Bonds, the
     opportunity  to control the defense of the  proceeding.  Fewer than all the
     2030 PC Bonds may be redeemed if  redemption of fewer than all would result
     in the  interest  payable on the Series  1999 Bonds  remaining  outstanding
     being not includable in the gross income for federal income tax purposes of
     any holder other than a  "substantial  user" or "related  person." If fewer
     than all Series  1999 Bonds are  redeemed,  the  Registrar  will select the
     bonds to be redeemed by lot as provided in the  Authority  Indenture  or by
     such other  method  acceptable  to the  Registrar as may be specified in an
     Opinion  of Tax  Counsel.  Provided,  however,  that  such  requirement  of
     redemption, whether in whole or in part shall be deemed waived if, prior to
     the date fixed for  redemption of the 2030 PC Bond pursuant to this Section
     2(i),  there shall have occurred any  completed  default (as defined in the
     Mortgage)  which  affects  any bond of any  series  outstanding  under  the
     Mortgage and which completed default has not been cured and made good prior
     to such redemption  date, it being the intent of this proviso that, in lieu
     of such  right to  redemption,  the  holder  of the  2030 PC Bond  shall be
     entitled  only to such rights as are  available  to the holders of bonds of
     any  other  series  outstanding  under  the  Mortgage  in the event of such
     completed  default;  but when any such  completed  default  shall have been
     cured and made good,  if  interest  on the Series 1999 Bonds shall still be
     taxable as  described  above,  the Company  shall have the same  obligation
     (subject to the same proviso) to redeem the 2030 PC Bond within one hundred
     eighty  (180)  days after the  curing  and  making  good of such  completed
     default. IF THE LIEN OF THE INDENTURE IS DISCHARGED PRIOR TO THE OCCURRENCE
     OF A FINAL  DETERMINATION  OF TAXABILITY,  THE BONDS WILL NOT BE REDEMED AS
     DESCRIBED IN THIS PARAGRAPH.

(j)  In part,  if any  governmental  body or agency  order the Company to divest
     itself or as a result of any legislative or administrative  action (whether
     state or federal) or by final decree, judgment or the order of any court or
     administrative  body  (whether  state  or  federal)  the  Company  shall be
     required  to  divest  itself  of all or  substantially  all of any  Project
     component or the facilities services thereby.

     In case of  redemption  of the 2030 PC Bond in  whole  for the  purpose  of
prepayment under the Loan Agreement  pursuant to subsections (a), (b), (c), (d),
(f), (g), (h), (i) or (j) above, the amounts payable upon redemption of the 2030
PC Bond shall be a sum sufficient,  together with other funds deposited with the
Authority  Trustee and available for such purpose,  to pay the principal of (and
premium,  in the case of redemption  pursuant to (f) above), and interest on the
2030 PC Bond then  outstanding  and to pay all reasonable and necessary fees and
expenses of the Authority Trustee accrued and to accrue through final payment of
the 2030 PC Bond.

     In case of  redemption  in part pursuant to (a), (b), (d), (e), (f), (i) or
(j) above, the amount payable by the Company under this Forty-Sixth Supplemental
Indenture,  the Loan  Agreement and the 2030 PC Bond shall be a sum  sufficient,
together  with other funds  deposited  with the Trustee and  available  for such
purpose, to pay the principal of (and premium in the case of prepayment pursuant
to (f)  above) and  interest  on the 2030 PC Bond so to be  redeemed,  which sum
together with other funds deposited with the Authority Trustee and available for
such purpose shall be sufficient to pay the principal of,  premium,  if any, and
interest on the Series 1999 Bonds and to pay all  reasonable  and necessary fees
and expenses of the Authority Trustee accrued and to accrue through such partial
prepayment.

     The principal amount of the 2030 PC Bond subject to redemption  pursuant to
(a), (b), (d) and (j) above will be an amount equal to the amount of proceeds of
the 2030 PC Bond  allocated  to the  Project  component  affected by the related
event, rounded up to the nearest $5,000 increment.

     The 2030 PC Bond and the Series 1999 Bonds shall be  redeemable at any time
within one hundred eighty (180) days following the event or events  described as
giving rise to an option of the Company to redeem them in subsections  (a), (b),
(c), (d), (e) or (f) above.

     To exercise any of the options  granted to redeem the 2030 PC Bond in whole
or in part or to comply with any obligations to redeem the 2030 PC Bond in whole
or in part imposed in this Section 2, the Company  shall give written  notice of
the date of redemption to the  Authority  Trustee,  which date shall be not less
than thirty (30) days from the date the notice is mailed.  No further notice, by
publication or otherwise,  shall be required for redemption of the 2030 PC Bond,
and the  requirements  of Section  59 of the  Mortgage  for notice by  newspaper
publication shall not apply to the 2030 PC Bond.

     At the option of the holder,  the 2030 PC Bond,  upon surrender  thereof at
the  office or agency of the  Company  in  Chicago,  Illinois,  together  with a
written  instrument of transfer in form approved by the Company duly executed by
the holder or by his duly authorized attorney,  shall be exchangeable for a like
aggregate principal amount of fully registered bonds of the same series of other
authorized denominations.

     The 2030 PC Bond will be  nontransferable  except to the Authority  Trustee
and  successors  thereto,  if any, and to the Company.  To the extent that it is
transferable,  it is transferable by the registered holder thereof, in person or
by  attorney  duly  authorized  in  writing,  on the books of the Company at the
office or agency of the Company in the City of Chicago, Illinois, upon surrender
thereof  for  cancellation  at said  office and upon  presentation  of a written
instrument of transfer duly executed.  Thereupon, the Company shall issue in the
name of the transferee,  and the Trustee shall  authenticate and deliver,  a new
registered  2030 PC Bond,  in an  authorized  denomination,  of equal  principal
amount. Any such transfer shall be subject to the terms and conditions specified
in the Mortgage and in this Forty-Sixth Supplemental Indenture.

     The Company  shall not be required to transfer or exchange the 2030 PC Bond
for a period of ten (10) days next  preceding any interest  payment date of said
bond.

     Except as set forth  herein,  no charge  shall be made upon any transfer or
exchange  of any of the  2030 PC Bond  other  than for any tax or taxes or other
governmental charge required to be paid by the Company.

     The 2030 PC Bond  shall be  limited  to an  aggregate  principal  amount of
Seventeen  Million Three Hundred Fifty Thousand Dollars  ($17,350,000) and shall
be issued under the provisions of Article VII of the Original Mortgage.

     SECTION 3. The 2030 PC Bond,  and the Trustee's  Certificate to be endorsed
thereon, shall be in the following forms, respectively:

                         [FORM OF FACE OF 2030 PC BOND]

     This First Mortgage Bond, 5.95% Series,  due 2030  (hereinafter  called the
"2030 PC Bond") is not  transferable  except to a  successor  trustee  under the
Indenture  of  Trust  dated  as  of  September  1,  1999,  between  the  Indiana
Development Finance Authority and National City Bank of Indiana, as the Trustee,
as supplemented  and amended by the First  Supplement and Amendment to Indenture
of Trust dated as of August 1, 2001, or to Indianapolis Power & Light Company.

                       INDIANAPOLIS POWER & LIGHT COMPANY

                   FIRST MORTGAGE BOND, 5.95% Series, Due 2030
                               Due August 1, 2030

No. 1                                                                $17,350,000

     INDIANAPOLIS  POWER & LIGHT COMPANY,  a corporation of the State of Indiana
(hereinafter called the "Company"),  for value received,  hereby promises to pay
National  City Bank of Indiana,  as the  Trustee  under the  Indenture  of Trust
between the Indiana  Development  Finance  Authority  and National  City Bank of
Indiana dated as of September 1, 1999, or registered assigns, on August 1, 2030,
at the office of the Company, in the City of Indianapolis,  State of Indiana, or
if no such office is maintained  at the time by the Company,  then at the office
or agency of the  Company  for such  purpose  in the City of  Chicago,  State of
Illinois,  Seventeen Million Three Hundred Fifty Thousand Dollars  ($17,350,000)
in lawful money of the United  States of America,  and to pay to the  registered
owner hereof interest thereon from the first day of February or the first day of
August  next  preceding  the date of this  2030 PC Bond  (except  that the first
interest payment hereunder shall be made on February 1, 2002 for the period from
August 1, 2001 through  January 31, 2002),  at the rate of five and  ninety-five
hundreths  percent  (5.95%)  per annum in like  lawful  money at said  office or
agency on February 1 and August 1 in each year,  until the Company's  obligation
with respect to the payment of such principal  shall have been  discharged.  The
interest  payable  hereunder  on  February  1 or  August  1 will  be paid to the
registered owner of this 2030 PC Bond at or before the close of business on such
dates,  or if such date shall be a Saturday,  Sunday,  holiday or a day on which
banking  institutions  in the City of  Indianapolis  or any  paying  agents  are
authorized  by law to close,  on or before  the  close of  business  on the next
succeeding  business  day on  which  such  banking  institutions  are  open  for
business.

     REFERENCE IS MADE TO THE FURTHER  PROVISIONS OF THIS 2030 PC BOND SET FORTH
ON THE REVERSE HEREOF. SUCH FURTHER PROVISIONS SHALL, FOR ALL PURPOSES, HAVE THE
SAME EFFECT AS THOUGH FULLY SET FORTH IN THIS PLACE.

     No recourse shall be had for the payment of the principal of or interest on
this  2030 PC Bond  against  any  incorporator  or any past,  present  or future
subscriber to the capital stock, stockholder, officer or director of the Company
or of any  predecessor or successor  corporation,  as such,  either  directly or
through the Company or any predecessor or successor corporation,  under any rule
of law,  statute,  or  constitution  or by the  enforcement of any assessment or
otherwise,  all such  liability  of  incorporators,  subscribers,  stockholders,
officers and directors,  as such,  being waived and released by the terms of the
Mortgage, as herein defined.

     This 2030 PC Bond shall not become  obligatory until American National Bank
and Trust Company of Chicago, the Trustee under the Mortgage, as herein defined,
or its successor thereunder,  shall have signed the form of certificate endorsed
hereon.

     IN WITNESS WHEREOF, INDIANAPOLIS POWER & LIGHT COMPANY has caused this 2030
PC Bond to be signed in its name by its President or one of its Vice Presidents,
by his signature or a facsimile  thereof,  and its corporate  seal to be affixed
hereon,  attested by its Secretary or one of its Assistant  Secretaries,  by his
signature or a facsimile thereof.

                                            INDIANAPOLIS POWER & LIGHT COMPANY


Dated_______________                        By_______________________________
                                                                   President
Attest:

By_____________________________
                  Secretary

                 [FORM OF TRUSTEE'S CERTIFICATE ON 2030 PC BOND]

                              Trustee's Certificate

     This 2030 PC Bond is one of the  bonds,  of the series  herein  designated,
provided  for in the  within-mentioned  Mortgage  and  Forty-Sixth  Supplemental
Indenture thereto.

                                            AMERICAN NATIONAL BANK AND
                                            TRUST COMPANY OF CHICAGO
                                                             Trustee

                                            By________________________________
                                                     Authorized Signature


                     [FORM OF REVERSE SIDE OF 2030 PC BOND]

                       INDIANAPOLIS POWER & LIGHT COMPANY

                   First Mortgage Bond, 5.95% Series, due 2030
                               Due August 1, 2030

     This 2030 PC Bond is one of an issue of bonds of the  Company,  issuable in
series,  and is one of a series known as its First Mortgage Bonds, 5.95% Series,
due 2030  (herein  called  the "2030 PC Bond")  limited in  aggregate  principal
amount to Seventeen  Million Three Hundred Fifty Thousand Dollars  ($17,350,000)
and  established by a Forty-Sixth  Supplemental  Indenture dated as of August 1,
2001, all bonds of all series issued and to be issued under and equally  secured
(except insofar as any sinking or other fund, established in accordance with the
provisions of the Mortgage hereinafter mentioned, may afford additional security
for the bonds of any particular  series) by a Mortgage and Deed of Trust,  dated
as of May 1, 1940,  executed by the Company to American  National Bank and Trust
Company  of  Chicago,  as the  Trustee  (which  Mortgage  and  Deed of  Trust as
supplemented and modified by all supplemental  indentures thereto is hereinafter
referred  to as the  "Mortgage"),  to  which  Mortgage  reference  is made for a
description of the property mortgaged and pledged,  the nature and extent of the
security, the rights of the bearers or registered owners of the bonds in respect
of such  security,  the duties and  immunities  of the Trustee and the terms and
conditions upon which the bonds are secured.

     This  2030  PC Bond  evidences  and  secures  a loan  made  by the  Indiana
Development Finance Authority (the "Authority"),  to the Company,  pursuant to a
Loan  Agreement,  dated as of September 1, 1999,  between the  Authority and the
Company  (the  "Loan  Agreement"),  as  supplemented  and  amended  by the First
Supplement and Amendment to Loan Agreement  dated as of August 1, 2001,  between
the  Company  and the  Authority.  In order to obtain  funds for such loan,  the
Authority  contemporaneously  with the  issue of this 2030 PC Bond,  will  issue
Seventeen Million Three Hundred Fifty Thousand Dollars  ($17,350,000)  principal
amount  of  its  Exempt  Facilities   Revenue   Refunding  Bonds,   Series  1999
(Indianapolis  Power & Light Company Project) (the "Authority  Bonds") under and
pursuant to an Indenture of Trust, dated as of September 1, 1999 (the "Authority
Indenture")  between the Authority and National City Bank of Indiana, as Trustee
(the "Authority  Trustee"),  as supplemented and amended by the First Supplement
and  Amendment  to  Indenture  of Trust dated as of August 1, 2001,  between the
Authority and the Trustee. The Authority Bonds are payable from payments made by
the Company of principal of, premium,  if any, and interest on this 2030 PC Bond
and from moneys in the Bond Fund  created  under the  Authority  Indenture.  The
obligation of the Company to pay the principal of, premium, if any, and interest
on this 2030 PC Bond shall be  discharged  to the extent that any moneys in said
Bond Fund are available for payments on the Authority  Bonds and are directed by
the  Company  to  be  applied  thereto,  all  as  provided  in  the  Forty-Sixth
Supplemental Indenture.

     This 2030 PC Bond is not  subject  to  redemption  prior to August 1, 2011,
except as provided in Section 2 of the Forty-Sixth  Supplemental  Indenture,  to
which reference is made for full description of redemption provisions.

     This 2030 PC Bond is subject to  redemption in whole or in part at any time
on or after August 1, 2011,  at the option of the Company,  upon at least thirty
(30)  days  prior  notice,  all  as  provided  in the  Forty-Sixth  Supplemental
Indenture, at a price equal to the principal amount of the 2030 PC Bond so to be
redeemed and accrued interest to the date of redemption, together with a premium
equal to a percentage of the principal  amount thereof set forth below under the
heading "Redemption Premium":

         If Redeemed During the Twelve Months
         Ending With the Thirty-first Day                     Redemption
         Of July of the Year Stated                           Premium
         ----------------------------------------------------------------

         2012                                                 1.0%
         2013                                                 0.5%

and without premium if redeemed after July 31, 2013.

     With the  consent  of the  Company  and to the extent  permitted  by and as
provided in the Mortgage,  the rights and  obligations  of the Company and/or of
the holders of the bonds and/or  coupons  and/or the terms and provisions of the
Mortgage and/or any instruments  supplemental thereto may be modified or altered
by affirmative vote of the holders of at least sixty-six and two-thirds  percent
(66-2/3%)  in principal  amount of the bonds  affected by such  modification  or
alteration then outstanding  under the Mortgage  (excluding  bonds  disqualified
from  voting by reason of the  Company's  interest  therein as  provided  in the
Mortgage);  provided that no such  modification  or alteration  shall permit the
extension of the maturity of the principal of this 2030 PC Bond or the reduction
in the rate of interest hereon or any other modification in the terms of payment
of such  principal  or interest  without the consent of the holder  hereof.  The
principal  hereof may be  declared  or may become due and  payable  prior to the
stated date of maturity hereof, on the conditions, in the manner and at the time
set forth in the Mortgage,  upon the occurrence of a completed default as in the
Mortgage provided.

     No reference herein to the Mortgage,  and no provision of this 2030 PC Bond
or of the Mortgage,  shall alter or impair the obligation of the Company,  which
is  absolute  and  unconditional,  to  pay,  subject  to the  provisions  of the
Forty-Sixth  Supplemental Indenture,  the principal of, and premium, if any, and
interest on this 2030 PC Bond at the place,  at the respective  times and at the
rate and the manner herein prescribed.

     This 2030 PC Bond is issuable only in full  registered form without coupons
in denominations  of Five Thousand Dollars ($5,000) and any larger  denomination
which is a whole multiple of Five Thousand Dollars ($5,000).

     This 2030 PC Bond will be  nontransferable  except to the Authority Trustee
and  successors  thereto,  if any, and to the Company.  To the extent that it is
transferable,  it is transferable by the registered holder thereof, in person or
by  attorney  duly  authorized  in  writing,  on the books of the Company at the
office or agency of the Company in the City of Chicago, Illinois, upon surrender
thereof  for  cancellation  at said  office and upon  presentation  of a written
instrument of transfer duly executed.  Thereupon, the Company shall issue in the
name of the transferee,  and the Trustee shall  authenticate and deliver,  a new
registered  2030 PC Bond,  in an  authorized  denomination,  of equal  principal
amount. Any such transfer shall be subject to the terms and conditions specified
in the Mortgage and in the Forty-Sixth Supplemental Indenture.

     Upon  redemption of this 2030 PC Bond in part and surrender  thereof at the
office or agency of the Company in Chicago,  Illinois, for exchange, the Trustee
shall  authenticate  and deliver a new registered  2030 PC Bond in an authorized
denomination and principal  amount equal to the reduced  principal amount due on
that series after such partial redemption.

                           [END OF 2030 PC BOND FORM]

     SECTION 4. Until the 2030 PC Bond in definitive form is ready for delivery,
the Company  may  execute,  and upon its  request in writing  the Trustee  shall
authenticate  and deliver,  in lieu thereof,  a fully registered 2030 PC Bond in
temporary  form, as provided in Section 15 of the Original  Mortgage.  Such bond
may, in lieu of the statement of the specific  redemption  prices required to be
set  forth  in  such  bond in  definitive  form,  include  a  reference  to this
Forty-Sixth Supplemental Indenture for a statement of such redemption prices.

     SECTION  5.  The  Company  covenants  and  agrees  that  it will  duly  and
punctually pay to the holder of the 2030 PC Bond the principal thereof, premium,
if any,  and  interest  on said bond at the  dates  and place and in the  manner
mentioned therein; provided, however, that:

     (a)  the obligation of the Company to pay the principal of, and premium, if
   any, and interest on the 2030 PC Bond shall be  discharged to the extent that
   any  moneys in the Bond Fund  created  under and  pursuant  to the  Authority
   Indenture are  available for the payment of the principal of, or premium,  if
   any, or interest on the Series 1999 Bonds and are  directed by the Company to
   be applied to the payment  thereof in the manner  provided  in the  Authority
   Indenture  on or prior to the dates on which the  Company is  required to pay
   the principal of, or premium, if any, or interest on the 2030 PC Bond.

     (b)  Except as otherwise  provided in this Section 5, the principal  amount
   of any  Series  1999  Bond  acquired  by the  Company  and  delivered  to the
   Authority Trustee, or acquired by the Authority Trustee and cancelled,  shall
   be credited against the obligation of the Company to pay the principal of the
   2030 PC Bond.

As the principal of,  premium,  if any, and interest on the 2030 PC Bond is paid
or deemed paid in full, and upon its receipt by the Company,  such bond shall be
delivered to the Trustee for cancellation. The Company shall promptly inform the
Trustee  of all  payments  made  and  credits  availed  of with  respect  to its
obligations  on the 2030 PC Bond. The Trustee shall not be required to recognize
any payment made or credit availed of with respect to any 2030 PC Bond unless it
has received (a) the bond for cancellation by it, or (b) a certificate signed by
a duly authorized officer of the Authority Trustee specifying the amount of such
payment or credit and the  principal  amount of the 2030 PC Bond with respect to
which the  payment  or credit  was  applied.  In the  absence  of receipt by the
Trustee  of any 2030 PC Bond,  any such  certificate  shall be  controlling  and
conclusive.

     SECTION 6. The  covenant  of the  Company to make  annual  payments  to the
Trustee for a Maintenance and Improvement Fund as contained in Section 41 of the
Original  Mortgage and in the first twenty-four  Supplemental  Indentures to the
Original  Mortgage creating the several series of First Mortgage Bonds presently
outstanding under such Supplemental Indentures shall not apply to nor be for the
benefit of the 2030 PC Bond,  and the Company  reserves  the right,  without any
consent of, or other action by, the holder of the 2030 PC Bond, to amend, modify
or delete the  provisions  of the  Mortgage  relating  to such  Maintenance  and
Improvement Fund and by acceptance of the 2030 PC Bond the holder thereof waives
any right or  privilege  so to consent  or take any other  action  with  respect
thereto.

     SECTION 7. The Company  covenants  that,  so long as the 2030 PC Bond shall
remain  outstanding,  it will comply with all of the provisions of Section 47 of
the Original  Mortgage,  including the provisions with respect to limitations on
dividends and distributions and the purchase and redemption of stock.

     SECTION 8. The Trustee hereby accepts the trusts herein declared,  provided
and created and agrees to perform the same upon the terms and conditions  herein
and in the Mortgage set forth and upon the following terms and conditions:

     The  recitals  contained  herein  and in the  bonds  shall  be taken as the
statements  of the  Company and the Trustee  assumes no  responsibility  for the
correctness of the same. The Trustee makes no representations as to the validity
or adequacy  of the  security  afforded  hereby,  or as to the  validity of this
Forty-Sixth Supplemental Indenture or of the 2030 PC Bond issued hereunder.

     SECTION 9. Whenever in this  Forty-Sixth  Supplemental  Indenture either of
the  parties  hereto  is  named or  referred  to,  this  shall,  subject  to the
provisions  of Article XVII of the Original  Mortgage,  be deemed to include the
successors or assigns of such party,  and all the  covenants  and  agreements in
this  Forty-Sixth  Supplemental  Indenture  contained  by or on  behalf  of  the
Company, or by or on behalf of the Trustee,  shall,  subject as aforesaid,  bind
and inure to the  benefit  of the  respective  successors  and  assigns  of such
parties, whether so expressed or not.

     SECTION 10. Nothing in this Forty-Sixth Supplemental Indenture expressed or
implied,  is intended or shall be construed  to confer upon,  or to give to, any
person,  co-partnership  or  corporation,  other than the parties hereto and the
holders of the bonds and  coupons  outstanding  under the  Mortgage,  any right,
remedy, or claim under or by reason of this Forty-Sixth  Supplemental  Indenture
or any  covenant,  condition  or  stipulation  hereof;  and all  the  covenants,
conditions,   stipulations,   promises  and   agreements  in  this   Forty-Sixth
Supplemental Indenture contained by or on behalf of the Company shall be for the
sole and exclusive benefit of the parties hereto and of the holders of the bonds
and of the coupons outstanding under the Mortgage.

     SECTION 11. The Company  covenants  that all of the terms,  provisions  and
conditions  of the  Mortgage  shall be  applicable  to the  2030 PC Bond  issued
hereunder,  except as herein  otherwise  provided and except insofar as the same
may be  inconsistent  with  the  provisions  of  this  Forty-Sixth  Supplemental
Indenture.

     SECTION 12. This Forty-Sixth  Supplemental  Indenture is dated as of August
1, 2001,  although  executed and  delivered  on the date of the  acknowledgement
hereof by the Trustee;  and shall be  simultaneously  executed and  delivered in
several counterparts,  and all such counterparts executed and delivered, each as
an original, shall constitute but one and the same instrument.

     IN WITNESS WHEREOF,  INDIANAPOLIS POWER & LIGHT COMPANY, party of the first
part, has caused its corporate name to be hereunto  affixed and this  instrument
to be signed and  acknowledged  by its  President or a  Vice-President,  and its
corporate  seal  to be  hereto  affixed  and  attested  by its  Secretary  or an
Assistant Secretary, for and in its behalf, and AMERICAN NATIONAL BANK AND TRUST
COMPANY  OF  CHICAGO,  party of the  second  part,  as  Trustee,  has caused its
corporate  name to be  hereunto  affixed  and this  instrument  to be signed and
acknowledged  by one of its  Authorized  Officers,  and its corporate seal to be
hereto  affixed and attested by one of its  Authorized  Officers,  all as of the
day, month and year first above written.


                                            INDIANAPOLIS POWER & LIGHT
                                            COMPANY,


                                            By: /s/ WILLIAM H. HENLEY
                                               ---------------------------------
(SEAL)                                          WILLIAM H. HENLEY,
                                                President
Attest:

By: /s/WILLIAM R. DODDS
   ----------------------------------
    WILLIAM R. DODDS,
    Secretary
                                            AMERICAN NATIONAL BANK AND
                                            TRUST COMPANY OF CHICAGO


                                            By: /s/ ROBERT M. SELANGOWSKI
                                                --------------------------------
                                                ROBERT M. SELANGOWSKI,
                                                Authorized Officer
Attest:
(SEAL)

By: /s/F. HENRY KLESCHEN
   ---------------------------------
    F. HENRY KLESCHEN,
    Authorized Officer
<PAGE>

STATE OF INDIANA  )
                  )  SS:
COUNTY OF MARION  )

     On this 26th day of July,  in the year 2001,  before me, a Notary Public in
and for the County  and State  aforesaid,  personally  came  WILLIAM H.  HENLEY,
President  and  WILLIAM  R.  DODDS,  Secretary,  of  Indianapolis  Power & Light
Company,  one of the corporations  described in and which executed the foregoing
instrument,  to me  personally  known  and  known  to me  personally  to be such
President  and  Secretary,  respectively.  Said WILLIAM H. HENLEY and WILLIAM R.
DODDS being by me severally  duly sworn did depose and say that the said WILLIAM
H.  HENLEY  resides  in Marion  County,  Indiana  and the said  WILLIAM R. DODDS
resides in Fulton County, Illinois; that said WILLIAM H. HENLEY is President and
said WILLIAM R. DODDS is Secretary of said  Indianapolis  Power & Light Company;
that each of them knows the corporate  seal of said  corporation;  that the seal
affixed to said  instrument  and  bearing the name of said  corporation  is such
corporate  seal;  that it was so affixed by order of the Board of  Directors  of
said  corporation;  and that each of them signed his name thereto by like order;
and each of them acknowledged the execution of said instrument on behalf of said
corporation to be his free and voluntary act and deed and the free and voluntary
act and deed of said corporation, for the uses and purposes therein set forth.

     IN WITNESS  WHEREOF,  I have  hereunto  set my hand and affixed my official
seal this 26th day of July, 2001.


                                                /s/DINAH L. KIRKHAM
                                                --------------------------------
                                                DINAH L. KIRKHAM,
                                                      Notary Public

My Commission Expires:
         June 23, 2008

My County of Residence is:
         Johnson
                                                                 (NOTARIAL SEAL)
<PAGE>

STATE OF ILLINOIS )
                  )  SS:
COUNTY OF COOK    )

     On this 26th day of July,  in the year 2001,  before me, a Notary Public in
and for the County and State  aforesaid,  personally came ROBERT M.  SELANGOWSKI
and F. HENRY KLESCHEN,  Authorized  Officers of American National Bank and Trust
Company of Chicago, one of the corporations  described in and which executed the
foregoing  instrument,  to me personally  known and known to me personally to be
such  Authorized  Officers.  Said ROBERT M.  SELANGOWSKI  and F. HENRY KLESCHEN,
being  by me  severally  sworn  did  depose  and say that  the  said  ROBERT  M.
SELANGOWSKI  resides in Lansing,  Illinois,  and that the said F. HENRY KLESCHEN
resides in Evanston, Illinois; that said ROBERT M. SELANGOWSKI and said F. HENRY
KLESCHEN,  are  Authorized  Officers of said  American  National  Bank and Trust
Company  of  Chicago;  that  each  of  them  knows  the  corporate  seal of said
corporation;  that the seal affixed to said  instrument  and bearing the name of
said  corporation is such corporate seal; that it was so affixed by authority of
the Board of  Directors of said  corporation;  that each of them signed his name
thereto by like authority;  and each of them  acknowledged the execution of said
instrument  on behalf of said  corporation  to be his free and voluntary act and
deed and the free and voluntary act and deed of said  corporation,  for the uses
and purposes therein set forth.

     IN WITNESS  WHEREOF,  I have  hereunto  set my hand and affixed my official
seal this 26th day of July, 2001.

                                                /s/KATHLEEN A. WHITE
                                                --------------------------------
                                                KATHLEEN A. WHITE,
                                                      Notary Public

My Commission Expires:
         February 9, 2002
My County of Residence is:
         Cook

                                                                 (NOTARIAL SEAL)


                         This instrument was prepared by
                                 BRIANE M. HOUSE
<PAGE>

                                    RECORDING DATA

             Forty-Sixth Supplemental Indenture Dated as of August 1, 2001


                                                     Instrument        Recording
County            Record            Page             No.               Date
--------------------------------------------------------------------------------


Bartholomew       ---               ---              200100009899      7/27/2001
Boone             ---               ---              0109138           7/27/2001
Daviess           ---               ---              01-3599           7/27/2001
Gibson            ---               ---              200100005591      7/27/2001
Greene            Inden. Bk. 27     98-124           200100004077      7/27/2001
Hamilton          ---               ---              200100046498      7/27/2001
Hancock           ---               ---              0110425           7/27/2001
Hendricks         Mtg. Rec. 261     735-761          200100021808      7/27/2001
Johnson           ---               ---              2001-022712       7/27/2001
Knox              Mtg. Rec. 554     597-622          5738              7/27/2001
Madison           ---               ---              200117487         7/27/2001
Marion            ---               ---              2001-0130011      7/27/2001
Monroe            ---               ---              2001015474        7/27/2001
Morgan            ---               ---              20111812          7/27/2001
Owen              Mtg. Rec. IC      577-603          138717            7/27/2001
Pike              Mtg. Rec. 307     1-27             01-1786           7/27/2001
Putnam            ---               ---              2001005424        7/27/2001
Shelby            ---               ---              0106333           7/27/2001
Sullivan          Mtg. Rec. 258     980              012794            7/27/2001
Switzerland       Mtg. Rec. 133     28               8809              7/27/2001