Document:

EXHIBIT 4.2

                         REGISTRATION RIGHTS AGREEMENT

                            Dated as of May 17, 2000

                                     among

                              THE AES CORPORATION

                                 AES TRUST VII

                                      and

                       MORGAN STANLEY & CO. INCORPORATED,

                             GOLDMAN, SACHS & CO.,

                          J.P. MORGAN SECURITIES INC.,

                        BANC OF AMERICA SECURITIES LLC,

                    CREDIT SUISSE FIRST BOSTON CORPORATION,

                              LEHMAN BROTHERS INC.

                                      and

                           SALOMON SMITH BARNEY INC.

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                         REGISTRATION RIGHTS AGREEMENT

     This Registration Rights Agreement (the "Agreement") is dated as of May
17, 2000, by and among THE AES CORPORATION, a Delaware corporation (the
"Company"), AES TRUST VII, a statutory business trust organized under the
Business Trust Act of the State of Delaware (the "Trust") and MORGAN STANLEY &
CO. INCORPORATED, GOLDMAN, SACHS & CO., J.P. MORGAN SECURITIES INC., BANC OF
AMERICA SECURITIES LLC, CREDIT SUISSE FIRST BOSTON CORPORATION, LEHMAN BROTHERS
INC. and SALOMON SMITH BARNEY INC. (collectively, the "Initial Purchasers").

     This Agreement is entered into in connection with the Purchase Agreement,
dated as of May 11, 2000, among the Company, the Trust and the Initial
Purchasers (the "Purchase Agreement") relating to the sale by the Trust to the
Initial Purchasers, severally, of up to 8,000,000 shares of its $3.00 Trust
Convertible Preferred Securities (the "Firm Preferred Securities") and up to
1,200,000 additional shares of its $3.00 Trust Convertible Preferred Securities
(the "Additional Preferred Securities", and, together with the Firm Preferred
Securities (the "Preferred Securities") pursuant to and in accordance with the
Purchase Agreement. The proceeds of the sale by the Trust of the Preferred
Securities and the Common Securities, liquidation amount $50 per common
security (the "Common Securities), are to be invested by the Trust in 6% junior
subordinated debentures due 2008 of the Company (the "Junior Subordinated
Debentures") issued pursuant to the Indenture (as defined herein). The
Preferred Securities are guaranteed by the Company to the extent set forth in
the Guarantee Agreement dated the date hereof (the "Guarantee") and are
convertible into shares of common stock, par value $.01 per share, of the
Company (such shares, the "Common Stock"). In order to induce the Initial
Purchasers to enter into the Purchase Agreement, each of the Company and the
Trust has agreed to provide the registration rights set forth in this Agreement
for the equal benefit of the Initial Purchasers and the registered holders from
time to time of the Preferred Securities and the Junior Subordinated Debentures
and the holders of the Common Stock issuable upon conversion of the Preferred
Securities or Debentures (collectively, together with the Guarantee, the
"Securities"). The execution and delivery of this Agreement is a condition to
the Initial Purchasers' obligation to purchase the Preferred Securities under
the Purchase Agreement.

     The parties hereby agree as follows:

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1.   Definitions

     As used in this Agreement, the following terms shall have the following
meanings:

     Advice: See Section 4.

     Black Out Period: See Section 3.

     Closing Date: The Closing Date as defined in the Purchase Agreement.

     Common Stock: See the introductory paragraph to this Agreement.

     Company: See the introductory paragraph to this Agreement.

     Declaration: The Amended and Restated Declaration of Trust among the
Trustees and the Trust.

     DTC: See Section 4(a).

     Effectiveness Date: The 180th day after the Closing Date.

     Effectiveness Period: See Section 2(a).

     Event Date: See Section 3(b).

     Exchange Act: The Securities Exchange Act of 1934, as amended, and the
rules and regulations of the SEC promulgated thereunder.

     Filing Date: The 90th day after the Closing Date.

     Guarantee: See the introductory paragraph to the Agreement.

     Guarantee Agreement: The Guarantee Agreement, dated May 17, 2000, executed
and delivered by the Company for the benefit of the Holders as amended or
supplemented from time to time in accordance with the terms thereof.

     Holder: Any record holder of Registrable Securities.

     Indemnified Person: See Section 6.

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     Indemnifying Person: See Section 6.

     Indenture: The Indenture, dated as of March 1, 1997, between the Company
and Bank One, National Association (formerly known as The First National Bank
of Chicago), as trustee, as Supplemented by the seventh Supplemental Indenture
dated as of May 17, 2000 between the Company and Bank One, National
Association, as trustee, pursuant to which the Junior Subordinated Debentures
are being issued, as amended or supplemented from time to time in accordance
with the terms thereof.

     Initial Purchasers: See the introductory paragraph to this Agreement.

     Initial Shelf Registration: See Section 2(a).

     Issue Date: The Closing Date;

     Junior Subordinated Debentures: See the introductory paragraph to this
Agreement.

     Liquidated Damages: See Section 3.

     NASD: See Section 4(p).

     Participant: See Section 6.

     Person: An individual, a corporation, a partnership, an association, a
trust or any other entity or organization, including a government or political
subdivision or an agency or instrumentality thereof.

     Preferred Securities: See the introductory paragraph to this Agreement.

     Prospectus: The prospectus included in any Registration Statement
(including, without limitation, a prospectus that includes any information
previously omitted from a prospectus filed as part of an effective registration
statement in reliance upon Rule 430A promulgated under the Securities Act), as
amended or supplemented by any prospectus supplement, with respect to the terms
of the offering of any portion of the Registrable Securities covered by such
Registration Statement, and all other amendments and supplements to the
Prospectus, including post-effective amendments, and all material incorporated
by reference or deemed to be incorporated by reference in such Prospectus.

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     Registrable Securities: The Securities upon original issuance of the
Securities and at all times subsequent thereto until (i) a Registration
Statement covering such Securities has been declared effective by the SEC and
such Securities have been disposed of in accordance with such effective
Registration Statement, (ii) such Securities are sold in compliance with Rule
144, or (iii) Securities cease to be outstanding.

     Registrants: The Company and the Trust, collectively.

     Registration Statement: Any registration statement of the Registrants that
covers any of the Registrable Securities pursuant to the provisions of this
Agreement, including the Prospectus, amendments and supplements to such
registration statement, including post-effective amendments, all exhibits, and
all material incorporated by reference or deemed to be incorporated by
reference in such registration statement.

     Rule 144: Rule 144 promulgated under the Securities Act, as such rule may
be amended from time to time, or any similar rule (other than Rule 144A) or
regulation hereafter adopted by the SEC providing for offers and sales of
securities made in compliance therewith resulting in offers and sales by
subsequent holders that are not affiliates of an issuer of such securities
being free of the registration and prospectus delivery requirements of the
Securities Act.

     Rule 144A: Rule 144A promulgated under the Securities Act, as such rule
may be amended from time to time, or any similar rule (other than Rule 144) or
regulation hereafter adopted by the SEC.

     Rule 415: Rule 415 promulgated under the Securities Act, as such rule may
be amended from time to time, or any similar rule or regulation hereafter
adopted by the SEC.

     SEC: The Securities and Exchange Commission.

     Securities: See the introductory paragraph to this Agreement.

     Securities Act: The Securities Act of 1933, as amended, and the rules and
regulations of the SEC promulgated thereunder.

     Shelf Registration: See Section 2(b).

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     Subsequent Shelf Registration: See Section 2(b).

     TIA: The Trust Indenture Act of 1939, as amended.

     Trustees: The trustees under the Declaration.

     Underwritten registration or underwritten offering: A registration in
which securities of the Registrants are sold to an underwriter for reoffering
to the public.

2.   Shelf Registration

          (a) The Registrants shall as promptly as reasonably practicable
     prepare and file with the SEC a Registration Statement for an offering to
     be made on a continuous basis pursuant to Rule 415 covering all of the
     Registrable Securities (the "Initial Shelf Registration"). The Registrants
     shall use their reasonable best efforts to file with the SEC the Initial
     Shelf Registration on or prior to the Filing Date. The Initial Shelf
     Registration shall be on Form S-3 or another appropriate form permitting
     registration of such Registrable Securities for resale by such holders in
     the manner or manners designated by them (including, without limitation,
     one or more underwritten offerings). The Registrants shall not permit any
     securities other than the Registrable Securities to be included in the
     Initial Shelf Registration or any Subsequent Shelf Registration (as
     defined below). The Registrants shall use their reasonable best efforts to
     cause the Initial Shelf Registration to be declared effective under the
     Securities Act on or prior to the 180th day after the filing thereof with
     the SEC and to keep the Initial Shelf Registration continuously effective
     under the Securities Act until the date which is 24 months from the Issue
     Date (subject to extension pursuant to the last paragraph of Section 4
     hereof) (the "Effectiveness Period"), or such shorter period ending when
     (i) none of the Securities constitute Registrable Securities or (ii) a
     Subsequent Shelf Registration covering all of the Registrable Securities
     has been declared effective under the Securities Act.

          (b) Subsequent Shelf Registrations. If the Initial Shelf Registration
     or any Subsequent Shelf Registration ceases to be effective for any reason
     at any time during the Effectiveness Period, the Registrants shall use
     their reasonable best efforts to obtain the prompt withdrawal of any order
     suspending the effectiveness thereof, and in any event shall within 45
     days of such effectiveness amend

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     the Shelf Registration in a manner reasonably expected to obtain the
     withdrawal of the order suspending the effectiveness thereof, or file an
     additional "shelf" Registration Statement pursuant to Rule 415 covering
     all of the Registrable Securities (a "Subsequent Shelf Registration"). If
     a Subsequent Shelf Registration is filed, the Registrants shall use their
     reasonable best efforts to cause the Subsequent Shelf Registration to be
     declared effective after such filing within 30 days of such cessation of
     effectiveness and to keep such Registration Statement continuously
     effective for a period equal to the number of days in the Effectiveness
     Period less the aggregate number of days during which the Initial Shelf
     Registration or any Subsequent Shelf Registration was previously
     continuously effective. As used herein the term "Shelf Registration" means
     the Initial Shelf Registration and any Subsequent Shelf Registration.

          (c) Supplements and Amendments. The Registrants shall promptly
     supplement and amend the Shelf Registration if required by the rules,
     regulations or instructions applicable to the registration form used for
     such Shelf Registration, if required by the Securities Act, or if
     reasonably requested by the Holders of a majority of the shares of the
     Registrable Securities covered by such Registration Statement or by any
     underwriter of such Registrable Securities.

3.   Liquidated Damages

          (a) The Registrants and the Initial Purchasers agree that the Holders
     of Registrable Securities will suffer damages if the Registrants fail to
     fulfill their obligations under Section 2 hereof and that it would not be
     feasible to ascertain the extent of such damages with precision.
     Accordingly, the Registrants agree to pay, as liquidated damages,
     additional cumulative cash distributions on the Registrable Securities
     ("Liquidated Damages") (i) if the Initial Shelf Registration Statement is
     not declared effective by the Commission on or prior to the Effectiveness
     Date and (ii) if the effectiveness of the Initial Shelf Registration
     Statement or Subsequent Shelf Registration Statement for resales
     thereunder is suspended at any time during the Effectiveness Period in
     excess of 30 days in any consecutive three-month period or 60 days in any
     consecutive 12-month period (the "Black Out Period"), then, in each case,
     Liquidated Damages shall accrue on the Registrable Securities included or
     that should have been

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     included in such Registration Statement over and above any stated
     distributions or interest payments at a rate of .50% per annum, commencing
     on (x) the 181st day after the Issue Date in the case of clause (i) above
     and (y) the day such Initial Shelf Registration Statement or subsequent
     Shelf Registration Statement ceases to be effective in excess of the Black
     Out Period in the case of clause (ii) above;

provided, however, that (1) upon the effectiveness of the Shelf Registration as
required hereunder (in the case of clause (a)(i) of this Section 3) or (2) upon
the effectiveness of the Shelf Registration which had ceased to remain
effective or the effectiveness of a Subsequent Shelf Registration Statement (in
the case of (a)(ii) of this Section 3), Liquidated Damages on the Registrable
Securities as a result of such clause, shall cease to accrue.

          (b) The Registrants shall notify the Trustees within one business day
     after each and every date on which an event occurs in respect of which
     Liquidated Damages is required to be paid (an "Event Date"). The
     Registrants shall pay the Liquidated Damages due on the Registrable
     Securities by paying an increased cash distribution or interest on the
     applicable quarterly distribution or interest payment date, or, if cash
     distributions or interest are not being paid on the Securities in
     accordance with the Declaration or the Indenture, as applicable, by
     accumulating dividends at the higher rate. The Liquidated Damages due
     shall be payable on each distribution or interest payment date to the
     record Holder of Registrable Securities entitled to receive the
     distribution or interest payment to be made on such date as set forth in
     the Declaration or the Indenture, as applicable. The amount of Liquidated
     Damages will be determined by multiplying the applicable Liquidated
     Damages by the number of Securities of the affected Registrable Securities
     of such Holders, multiplied by a fraction, the numerator of which is the
     number of days such Liquidated Damages were applicable during such period
     (determined on the basis of a 360-day year comprised of twelve 30-day
     months and, in the case of a partial month, the actual number of days
     elapsed), and the denominator of which is 360. Each obligation to pay
     Liquidated Damages shall be deemed to accrue immediately following the
     occurrence of the applicable Event Date.

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4.   Registration Procedures

     In connection with the registration of any Registrable Securities pursuant
to Section 2 hereof, the Registrants shall effect such registrations to permit
the sale of such Registrable Securities in accordance with the intended method
or methods of disposition thereof, and pursuant thereto the Registrants shall:

          (a) Use their reasonable best efforts to prepare and file with the
     SEC, as soon as practicable after the date hereof but in any event prior
     to the Filing Date, a Registration Statement as prescribed by Section 2,
     and to use their reasonable best efforts to cause such Registration
     Statement to become effective and remain effective as provided herein,
     provided that, before filing any Registration Statement or Prospectus or
     any amendments or supplements thereto, the Registrants shall upon written
     request furnish to and afford the Holders of the Registrable Securities
     (which in the case of Registrable Securities in the form of global
     certificates shall be The Depository Trust Company ("DTC")) covered by
     such Registration Statement, a reasonable opportunity to review copies of
     all such documents (including copies of any documents to be incorporated
     by reference therein and all exhibits thereto) proposed to be filed.

          (b) Prepare and file with the SEC such amendments and post-effective
     amendments to each Shelf Registration Statement, as the case may be, as
     may be necessary to keep such Registration Statement continuously
     effective for the Effectiveness Period; cause the related Prospectus to be
     supplemented by any required Prospectus supplement, and as so supplemented
     to be filed pursuant to Rule 424 (or any similar provisions then in force)
     under the Securities Act; and comply with the provisions of the Securities
     Act, the Exchange Act and the rules and regulations of the SEC promulgated
     thereunder applicable to it with respect to the disposition of all
     securities covered by such Registration Statement as so amended or in such
     Prospectus as so supplemented.

          (c) Notify the selling Holders of Registrable Securities who have
     provided the Registrants with their names and addresses promptly (but in
     any event within two business days), and confirm such notice in writing,
     (i) when a Prospectus or any Prospectus supplement or post-effective
     amendment has been filed, and, with respect to a Registration

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     Statement or any post-effective amendment, when the same has become
     effective under the Securities Act (including in such notice a written
     statement that any Holder may, upon request, obtain, without charge, one
     conformed copy of such Registration Statement or post-effective amendment
     including financial statements and schedules, documents incorporated or
     deemed to be incorporated by reference and exhibits), (ii) of the issuance
     by the SEC of any stop order suspending the effectiveness of a
     Registration Statement or of any order preventing or suspending the use of
     any preliminary prospectus or the initiation of any proceedings for that
     purpose, (iii) of the receipt by the Registrants of any notification with
     respect to the suspension of the qualification or exemption from
     qualification of a Registration Statement or any of the Registrable
     Securities for offer or sale in any jurisdiction, or the initiation or
     threatening of any proceeding for such purpose, (iv) of the happening of
     any event or any information becoming known that makes any statement made
     in such Registration Statement or related Prospectus or any document
     incorporated or deemed to be incorporated therein by reference untrue in
     any material respect or that requires the making of any changes in such
     Registration Statement, Prospectus or documents so that, in the case of
     the Registration Statement, it will not contain any untrue statement of a
     material fact or omit to state any material fact required to be stated
     therein or necessary to make the statements therein not misleading, and
     that in the case of the Prospectus, it will not contain any untrue
     statement of a material fact or omit to state any material fact required
     to be stated therein or necessary to make the statements therein, in the
     light of the circumstances under which they were made, not misleading, and
     (v) of the Registrants' reasonable determination that a post-effective
     amendment to a Registration Statement would be appropriate.

          (d) Use their reasonable best efforts to prevent the issuance of any
     order suspending the effectiveness of a Registration Statement or of any
     order preventing or suspending the use of a Prospectus or suspending the
     qualification (or exemption from qualification) of any of the Registrable
     Securities for sale in any jurisdiction, and, if any such order is issued,
     to use their reasonable best efforts to obtain the withdrawal of any such
     order at the earliest possible moment.

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          (e) If requested by the Holders of a majority of the shares of the
     Registrable Securities being sold in connection with an underwritten
     offering, (i) promptly incorporate in a prospectus supplement or
     post-effective amendment such information as such Holders reasonably
     request to be included therein, or (ii) make all required filings of such
     prospectus supplement or such post-effective amendment as soon as
     practicable after the Registrants have received notification of the
     matters to be incorporated in such prospectus supplement or post-effective
     amendment.

          (f) Furnish to each selling Holder of Registrable Securities, if any,
     without charge, one conformed copy of the Registration Statement or
     Statements and each post-effective amendment thereto, including financial
     statements and schedules, and if requested, all documents incorporated or
     deemed to be incorporated therein by reference and all exhibits.

          (g) Deliver to each selling Holder of Registrable Securities, without
     charge, as many copies of the Prospectus or Prospectuses (including each
     form of preliminary prospectus) and each amendment or supplement thereto
     and any documents incorporated by reference therein as such Persons may
     reasonably request; and, subject to the last paragraph of this Section 4,
     the Registrants hereby consent to the use of such Prospectus and each
     amendment or supplement thereto by each of the selling holders of
     Registrable Securities and the underwriters or agents, if any, and dealers
     (if any), in connection with the offering and sale of the Registrable
     Securities covered by such Prospectus and any amendment or supplement
     thereto.

          (h) Prior to any public offering of Registrable Securities, to use
     their reasonable best efforts to register or qualify, and to cooperate
     with the selling Holders of Registrable Securities in connection with the
     registration or qualification (or exemption from such registration or
     qualification) of such Registrable Securities for offer and sale under the
     securities or Blue Sky laws of such jurisdictions within the United States
     as any selling Holder reasonably requests in writing, provided that where
     Registrable Securities are offered other than through an underwritten
     offering, the Registrants agree to cause their counsel to perform Blue Sky
     investigations and file registrations and qualifications required to be
     filed pursuant to this Section 4(h); keep each such registration or

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     qualification (or exemption therefrom) effective during the period such
     Registration Statement is required to be kept effective and do any and all
     other reasonable acts or things necessary or advisable to enable the
     disposition in such jurisdictions of the Registrable Securities covered by
     the applicable Registration Statement, provided that neither the Company
     nor the Trust shall be required to (A) qualify generally to do business in
     any jurisdiction where it is then so qualified, (B) take any action that
     would subject it to general service of process in any such jurisdiction
     where it is not then so subject or (C) subject itself to taxation in
     excess of a nominal dollar amount in any such jurisdiction.

          (i) Reasonably cooperate with the selling Holders of Registrable
     Securities and the managing underwriters, if any, to facilitate the timely
     preparation and delivery of certificates representing Registrable
     Securities to be sold, which certificates shall not bear any restrictive
     legends and shall be in a form eligible for deposit with DTC; and enable
     such Registrable Securities to be registered in such names as the managing
     underwriter or underwriters, if any, or Holders may request.

          (j) Use their reasonable best efforts to cause the Registrable
     Securities covered by the Registration Statement to be registered with or
     approved by such other United States governmental agencies or authorities
     of the United States as may be necessary to enable the seller or sellers
     thereof or the underwriters, if any, to consummate the disposition of such
     Registrable Securities, except as may be required solely as a consequence
     of the nature of such selling Holder's business, in which case the
     Registrants will cooperate in all reasonable respects with the filing of
     such Registration Statement and the granting of such approvals.

          (k) Upon the occurrence of any event contemplated by paragraph
     4(c)(iv) or 4(c)(v) above, as promptly as practicable prepare and (subject
     to Section 4(a) above) file with the SEC, solely at the expense of the
     Registrants, a supplement or post-effective amendment to the Registration
     Statement or a supplement to the related Prospectus or any document
     incorporated or deemed to be incorporated therein by reference, or file
     any other required document so that, as thereafter delivered to the
     purchasers of the Registrable Securities being sold thereunder, any such
     Prospectus will not contain an untrue statement of a material fact or

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     omit to state a material fact required to be stated therein or necessary
     to make the statements therein, in the light of the circumstances under
     which they were made, not misleading.

          (l) Use their reasonable best efforts to cause the Registrable
     Securities covered by a Registration Statement to be rated with the
     appropriate rating agencies, if so requested by the Holders of a majority
     of the shares of Registrable Securities covered by such Registration
     Statement or the managing underwriters, if any.

          (m) Prior to the effective date of the first Registration Statement
     relating to the Registrable Securities, (i) provide the Trustees with
     printed certificates for the Registrable Securities in a form eligible for
     deposit with DTC and (ii) provide a CUSIP number for the Registrable
     Securities.

          (n) Provide an indenture trustee for the Junior Subordinated
     Debentures and cause the Indenture, the Guarantee Agreement and the
     Declaration to be qualified under the TIA not later than the effective
     date of the first Registration Statement relating to the Registrable
     Securities; and in connection therewith, cooperate with the trustee under
     the Indenture and the holders of the Registrable Securities, to effect
     such changes to the Indenture, the Declaration and the Guarantee Agreement
     as may be required for the Indenture, the Declaration and the Guarantee
     Agreement to be so qualified in accordance with the terms of the TIA; and
     execute, and use its reasonable best efforts to cause such trustee to
     execute, all documents as may be required to effect such changes, and all
     other forms and documents required to be filed with the SEC to enable the
     Indenture, the Declaration and the Guarantee Agreement to be so qualified
     in a timely manner.

          (o) Comply in all material respects with all applicable rules and
     regulations of the SEC and make generally available to its securityholders
     earning statements satisfying the provisions of Section 11(a) of the
     Securities Act and Rule 158 thereunder (or any similar rule promulgated
     under the Securities Act) no later than 90 days after the end of any
     12-month period (i) commencing at the end of any fiscal quarter in which
     Registrable Securities are sold to underwriters in a firm commitment or
     best efforts underwritten offering and (ii) if not sold to underwriters in
     such an offering, commencing on the first day

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     of the first fiscal quarter of the Company after the effective date of a
     Shelf Registration Statement, which statements shall cover said 12-month
     periods.

          (p) Reasonably cooperate with each seller of Registrable Securities
     covered by any Registration Statement participating in the disposition of
     such Registrable Securities and their respective counsel in connection
     with any filings required to be made with the National Association of
     Securities Dealers, Inc. (the "NASD").

          (q) Use their reasonable best efforts to take all other steps
     necessary to effect the registration of the Registrable Securities covered
     by a Registration Statement contemplated hereby.

     The Registrants may require each seller of Registrable Securities to
furnish to the Registrants such information regarding such seller and the
distribution of such Registrable Securities as the Registrants may, from time
to time, reasonably request. The Registrants may exclude from such registration
the Registrable Securities of any seller who unreasonably fails to furnish such
information within a reasonable time after receiving such request. Each seller
as to which any Shelf Registration is being effected is deemed to agree to
furnish promptly to the Registrants all information required to be disclosed in
order to make the information previously furnished to the Registrants by such
seller not materially misleading.

     Each Holder of Registrable Securities agrees by acquisition of such
Registrable Securities that, upon receipt of any notice from the Registrants of
the happening of any event of the kind described in Section 4(c)(ii),
4(c)(iii), 4(c)(iv), or 4(c)(v), such Holder will forthwith discontinue
disposition of such Registrable Securities covered by such Registration
Statement or Prospectus until such Holder's receipt of the copies of the
supplemented or amended Prospectus contemplated by Section 4(k), or until it is
advised in writing (the "Advice") by the Registrants that the use of the
applicable Prospectus may be resumed, and has received copies of any amendments
or supplements thereto. In the event the Registrants shall give any such
notice, the Effectiveness Period shall be extended by the number of days during
such period from and including the date of the giving of such notice to and
including the date when each seller of Registrable Securities covered by such
Registration Statement shall have received (x) the copies of the supplemented
or amended Prospectus contemplated by Section 4(k) or (y) the Advice.

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5.   Registration Expenses

     All fees and expenses incident to the performance of or compliance with
this Agreement by the Registrants shall be borne by the Registrants whether or
not a Shelf Registration is filed or becomes effective, including, without
limitation, (i) all registration and filing fees (including, without
limitation, (A) fees with respect to filings required to be made with the NASD
in connection with an underwritten offering and (B) fees and expenses of
compliance with state securities or Blue Sky laws (including, without
limitation, reasonable fees and disbursements of counsel in connection with
Blue Sky qualifications of the Registrable Securities and determination of the
eligibility of the Registrable Securities for investment under the laws of such
jurisdictions in the United States as provided in Section 4(h)), (ii) printing
expenses (including, without limitation, expenses of printing certificates for
Registrable Securities in a form eligible for deposit with DTC and of printing
prospectuses if the printing of prospectuses is requested by the managing
underwriters, if any, or, in respect of Registrable Securities, by the Holders
of a majority of shares of the Registrable Securities included in any
Registration Statement), (iii) messenger, telephone and delivery expenses, (iv)
fees and disbursements of counsel for the Registrants, (v) fees and
disbursements of all independent certified public accountants for the
Registrants, (vi) rating agency fees, (vii) Securities Act liability insurance,
if the Registrants desire such insurance, (viii) fees and expenses of all other
Persons retained by the Registrants, (ix) internal expenses of the Registrants
(including, without limitation, all salaries and expenses of officers and
employees of the Registrants performing legal or accounting duties), (x) the
expense of any annual audit, (xi) the fees and expenses incurred in connection
with the listing of the securities to be registered on any securities exchange,
if applicable, (xii) the expenses relating to printing, word processing and
distributing all Registration Statements, underwriting agreements, securities
sales agreements, indentures and any other documents necessary in order to
comply with this Agreement and (xiii) fees and expenses of the Trustees and the
trustee under the Indenture (including reasonable fees and expenses of counsel
to such trustees).

6.   Indemnification

     The Registrants agree, jointly and severally, to indemnify and hold
harmless each Holder of Registrable Securities, the officers and directors of
each such person, and each person, if any, who controls any such person within
the meaning

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of Section 15 of the Securities Act or Section 20 of the Exchange Act (each, a
"Participant"), from and against any and all losses, claims, damages,
liabilities and judgments caused by any untrue statement or alleged untrue
statement of a material fact contained in any Registration Statement or
Prospectus (as amended or supplemented if the Registrants shall have furnished
any amendments or supplements thereto) or any preliminary prospectus, or caused
by any omission or alleged omission to state therein a material fact required
to be stated therein or necessary to make the statements therein not
misleading, except insofar as such losses, claims, damages, liabilities or
judgments are caused by any such untrue statement or omission or alleged untrue
statement or omission based upon information relating to any Participant
furnished in writing to the Registrants by or on behalf of such Participant
expressly for use therein; provided, however, that the foregoing indemnity
agreement with respect to any preliminary prospectus shall not inure to the
benefit of any Participant (or to the benefit of any person controlling such
Participant) from whom the person asserting any such losses, claims, damages,
liabilities or judgments purchased Registrable Securities if a copy of the
Prospectus (as then amended or supplemented if the Registrants shall have
furnished any amendments or supplements thereto) was not sent or given by or on
behalf of such Participant to such person, if required by law so to have been
delivered, at or prior to the written confirmation of the sale of such
Registrable Securities to such person, and if the Prospectus (as so amended or
supplemented) would have cured the defect giving rise to such losses, claims,
damages, liabilities or judgments.

     Each Participant will be required to agree, severally and not jointly, to
indemnify and hold harmless each of the Company and the Trust, its respective
directors, officers and each person, if any, who controls the Company or the
Trust within the meaning of Section 15 of the Securities Act or Section 20 of
the Exchange Act to the same extent as the foregoing indemnity from the
Registrants to each Participant, but only with reference to information
relating to such Participant furnished in writing to the Registrants by or on
behalf of such Participant expressly for use in any Registration Statement or
Prospectus, any amendment or supplement thereto, or any preliminary prospectus.
The liability of any Participant under this paragraph shall in no event exceed
the proceeds received by such Participant from sales of Registrable Securities
giving rise to such obligations.

     In case any action shall be brought against any person in respect of which
indemnity may be sought pursuant to either

<PAGE>

                                    - 16 -

of the two preceding paragraphs, such person (the "Indemnified Person") shall
promptly notify the person against whom such indemnity may be sought (the
"Indemnifying Person") in writing and the Indemnifying Person shall assume the
defense thereof, including the employment of counsel reasonably satisfactory to
the Indemnified Person and payment of all fees and expenses. Any Indemnified
Person shall have the right to employ separate counsel in any such action and
participate in the defense thereof, but the fees and expenses of such counsel
shall be at the expense of such Indemnified Person unless (i) the employment of
such counsel has been specifically authorized in writing by the Indemnifying
Person, (ii) the Indemnifying Person has failed to assume the defense and
employ counsel or (iii) the named parties to any such action (including any
impleaded parties) include both the Indemnifying Person and the Indemnified
Person and such Indemnified Party shall have been advised by such counsel that
there may be one or more legal defenses available to it which are different
from or additional to those available to the Indemnifying Person (in which case
the Indemnifying Person shall not have the right to assume the defense of such
action on behalf of such Indemnified Person, it being understood, however, that
the Indemnifying Person shall not, in connection with any one such action or
separate but substantially similar or related actions in the same jurisdiction
arising out of the same general allegations or circumstances, be liable for the
reasonable fees and expenses of more than one separate firm of attorneys (in
addition to any local counsel) for all Indemnified Persons, and that all such
fees and expenses shall be reimbursed as they are incurred). Any such separate
firm for the Participants and such control persons of Participants shall be
designated in writing by Participants who sold a majority in interest of
Registrable Securities sold by all such Participants and any such separate firm
for the Registrants, their respective directors, officers and such control
persons of the Registrants shall be designated in writing by the Registrants.
The Indemnifying Person shall not be liable for any settlement of any such
action effected without its written consent, but if settled with the written
consent, the Indemnifying Person agrees to indemnify and hold harmless any
Indemnified Person from and against any loss or liability by reason of such
settlement. Notwithstanding the foregoing sentence, if at any time an
Indemnified Person shall have requested an Indemnifying Person to reimburse the
Indemnified Person for fees and expenses of counsel as contemplated by the
third sentence of this paragraph, the Indemnifying Person agrees that it shall
be liable for any settlement of any proceeding effected without its written
consent if (i) such settlement is entered into more than 10 business days after
receipt

<PAGE>

                                    - 17 -

by such Indemnifying Person of the aforesaid request and (ii) such Indemnifying
Person shall not have reimbursed the Indemnified Person in accordance with such
request prior to the date of such settlement. No Indemnifying Person shall,
without the prior written consent of the Indemnified Person, effect any
settlement of any pending or threatened proceeding in respect of which any
Indemnified Person is or could have been a party and indemnity could have been
sought hereunder by such Indemnified Person, unless such settlement includes an
unconditional release of such Indemnified Person from all liability on claims
that are the subject matter of such proceeding.

     If the Indemnification provided for in the first and second paragraphs of
this Section 6 is unavailable to an Indemnified Person in respect of any
losses, claims, damages, liabilities or judgments referred to therein, then
each Indemnifying Person under such paragraph, in lieu of indemnifying such
Indemnified Person thereunder, shall contribute to the amount paid or payable
by such Indemnified Person as a result of such losses, claims, damages,
liabilities or judgments in such proportion as is appropriate to reflect the
relative fault of the Registrants on the one hand and the Participants on the
other hand in connection with the statements or omissions that resulted in such
losses, claims, damages, liabilities, or judgments as well as any other
relevant equitable considerations. The relative fault of the Registrants on the
one hand and the Participants on the other hand shall be determined by
reference to, among other things, whether the untrue or alleged untrue
statement of a material fact or the omission or alleged omission to state a
material fact relates to information supplied by the Registrants or by the
Participants and the parties' relative intent, knowledge, access to information
and opportunity to correct or prevent such statement or omission.

     The parties shall agree that it would not be just and equitable if
contribution pursuant to the prior paragraph were determined by pro rata
allocation (even if the Participants were treated as one entity for such
purpose) or by any other method of allocation that does not take account of the
equitable considerations referred to in the immediately preceding paragraph.
The amount paid or payable by an Indemnified Person as a result of the losses,
claims, damages, liabilities or judgments referred to in the immediately
preceding paragraph shall be deemed to include, subject to the limitations set
forth above, any legal or other expenses reasonably incurred by such
Indemnified Person in connection with investigating or defending any such
action or claim. Notwithstanding the provisions of this Section 6, no
Participant shall be required to

<PAGE>

                                    - 18 -

contribute any amount in excess of the amount by which proceeds received by
such Participant from sales of Registrable Securities exceeds the amount of any
damages that such Participant has otherwise been required to pay by reason of
such untrue or alleged untrue statement or omission or alleged omission. No
person guilty of fraudulent misrepresentation (within the meaning of Section
11(f) of the Securities Act) shall be entitled to contribution from any person
who was not guilty of such fraudulent misrepresentation.

     The indemnity and contribution agreements contained in this Section 6 will
be in addition to any liability which the Indemnifying Persons may otherwise
have to the Indemnified Persons referred to above.

7.   Rule 144 and Rule 144A

     The Registrants covenant that they will file the reports required to be
filed by them under the Securities Act and the Exchange Act and the rules and
regulations adopted by the SEC thereunder in a timely manner and, if at any
time the Registrants are not required to file such reports, they will, upon the
request of any Holder of Registrable Securities, make publicly available other
information so long as necessary to permit sales pursuant to Rule 144 and Rule
144A under the Securities Act. The Registrants further covenant that they will
take such further action as any Holder of Registrable Securities may reasonably
request, all to the extent required from time to time to enable such Holder to
sell Registrable Securities without registration under the Securities Act
within the limitation of the exemptions provided by (a) Rule 144 and Rule 144A
under the Securities Act, as such rules may be amended from time to time, or
(b) any similar rule or regulation hereafter adopted by the SEC.

8.   Underwritten Registrations

     If any of the Registrable Securities covered by any Shelf Registration are
to be sold in an underwritten offering, the investment banker or investment
bankers and manager or managers that will manage the offering will be selected
by the Holders of a majority of the shares of such Registrable Securities
included in such offering and be reasonably acceptable to the Registrants.

     No Holder of Registrable Securities may participate in any underwritten
registration hereunder unless such Holder (a) agrees to sell such Holder's
Registrable Securities on the

<PAGE>

                                    - 19 -

basis provided in any underwriting arrangements approved by the Persons
entitled hereunder to approve such arrangements and (b) completes and executes
all questionnaires, powers of attorney, indemnities, underwriting agreements
and other documents required under the terms of such underwriting arrangements.

9.   Miscellaneous

          (a) Remedies. In the event of a breach by the Registrants of any of
     their respective obligations under this Agreement, each Holder of
     Registrable Securities, in addition to being entitled to exercise all
     rights provided herein, in the Declaration, the Indenture, the Guarantee
     Agreement or, in the case of the Initial Purchasers, in the Purchase
     Agreement or granted by law, including recovery of damages, will be
     entitled to specific performance of its rights under this Agreement. The
     Registrants agree that monetary damages would not be adequate compensation
     for any loss incurred by reason of a breach by it of any of the provisions
     of this Agreement and hereby further agree that, in the event of any
     action for specific performance in respect of such breach, the Registrants
     shall waive the defense that a remedy at law would be adequate.

          (b) No Inconsistent Agreements. The Registrants have not, as of the
     date hereof, entered and shall not, after the date of this Agreement,
     enter into any agreement with respect to any of its respective securities
     that is inconsistent with the rights granted to the Holders of Registrable
     Securities in this Agreement or otherwise conflicts with the provisions
     hereof. The Registrants have not entered and will not enter into any
     agreement with respect to any of its respective securities which will
     grant to any Person piggy-back rights with respect to a Registration
     Statement.

          (c) Adjustments Affecting Registrable Securities. The Registrants
     shall not, directly or indirectly, take any action with respect to the
     Registrable Securities as a class that would adversely affect the ability
     of the Holders of Registrable Securities to include such Registrable
     Securities in a registration undertaken pursuant to this Agreement.

          (d) Amendments and Waivers. The provisions of this Agreement,
     including the provisions of this sentence, may not be amended, modified or
     supplemented, and waivers or consents to departures from the provisions
     hereof may not

<PAGE>

                                    - 20 -

     be given, unless the Registrants have obtained the written consent of
     Holders of at least a majority of the Registrable Securities.
     Notwithstanding the foregoing, a waiver or consent to depart from the
     provisions hereof with respect to a matter that relates exclusively to the
     rights of Holders of Registrable Securities whose securities are being
     sold pursuant to a Registration Statement and that does not directly or
     indirectly affect, impair, limit or compromise the rights of other Holders
     of Registrable Securities may be given by Holders of at least a majority
     of the Registrable Securities being sold by such Holders pursuant to such
     Registration Statement, provided that the provisions of this sentence may
     not be amended, modified or supplemented except in accordance with the
     provisions of the immediately preceding sentence.

          (e) Notices. All notices and other communications (including without
     limitation any notices or other communications to the Trustees) provided
     for or permitted hereunder shall be made in writing by hand-delivery,
     registered first-class mail, next-day air courier or telecopier:

               (i) if to a Holder of Registrable Securities, at the most
          current address given by the Trustees to the Registrants; and

               (ii) if to the Registrants, at 1001 North 19th Street,
          Arlington, Virginia 22209, Attention: General Counsel; with a copy to
          Davis Polk & Wardwell, 450 Lexington Avenue, New York, New York
          10017, Attention: Richard D. Truesdell, Jr.

     All such notices and communications shall be deemed to have been duly
given: when delivered by hand, if personally delivered; five business days
after being deposited in the mail, postage prepaid, if mailed; one business day
after being timely delivered to a next-day air courier; and when receipt is
acknowledged by the addressee, if telecopied.

     Copies of all such notices, demands or other communications shall be
concurrently delivered by the Person giving the same to the trustee under the
Indenture at the address specified in the Indenture.

               (f) Successors and Assigns. This Agreement shall inure to the
          benefit of and be binding upon the successors and assigns of each of
          the parties, including without

<PAGE>

                                    - 21 -

          limitation and without the need for an express assignment, subsequent
          Holders of Registrable Securities; provided, that, with respect to
          the indemnity and contribution agreements in Section 6, each Holder
          of Registrable Securities subsequent to the Initial Purchasers shall
          be bound by the terms thereof if such Holder elects to include
          Registrable Securities in a Shelf Registration; provided, however,
          that this Agreement shall not inure to the benefit of or be binding
          upon a successor or assign of a Holder unless and to the extent such
          successor or assign holds Registrable Securities.

               (g) Counterparts. This Agreement may be executed in any number
          of counterparts and by the parties hereto in separate counterparts,
          each of which when so executed shall be deemed to be an original and
          all of which taken together shall constitute one and the same
          agreement.

               (h) Headings. The headings in this Agreement are for convenience
          of reference only and shall not limit or otherwise affect the meaning
          hereof.

               (i) Governing Law. THIS AGREEMENT SHALL BE GOVERNED BY AND
          CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK, AS
          APPLIED TO CONTRACTS MADE AND PERFORMED WITHIN THE STATE OF NEW YORK,
          WITHOUT REGARD TO PRINCIPLES OF CONFLICTS OF LAW. EACH OF THE PARTIES
          HERETO AGREES TO SUBMIT TO THE JURISDICTION OF THE COURTS OF THE
          STATE OF NEW YORK IN ANY ACTION OR PROCEEDING ARISING OUT OF OR
          RELATING TO THIS AGREEMENT.

               (j) Severability. If any term, provision, covenant or
          restriction of this Agreement is held by a court of competent
          jurisdiction to be invalid, illegal, void or unenforceable, the
          remainder of the terms, provisions, covenants and restrictions set
          forth herein shall remain in full force and effect and shall in no
          way be affected, impaired or invalidated, and the parties hereto
          shall use their best efforts to find and employ an alternative means
          to achieve the same or substantially the same result as that
          contemplated by such term, provision, covenant or restriction. It is
          hereby stipulated and declared to be the intention of the parties
          that they would have executed the remaining terms, provisions,
          covenants and restrictions without including any of such that may be
          hereafter declared invalid, illegal, void or unenforceable.

<PAGE>

                                    - 22 -

               (k) Entire Agreement. This Agreement, together with the Purchase
          Agreement, is intended by the parties as a final expression of their
          agreement, and is intended to be a complete and exclusive statement
          of the agreement and understanding of the parties hereto in respect
          of the subject matter contained herein and therein.

               (l) Securities Held by the Registrants or Their Affiliates.
          Whenever the consent or approval of Holders of a specified percentage
          of Registrable Securities is required hereunder, Registrable
          Securities held by the Registrants or any of their affiliates (as
          such term is defined in Rule 405 under the Securities Act) shall not
          be counted in determining whether such consent or approval was given
          by the Holders of such required percentage.

<PAGE>

                                      S-1

     IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date first written above.

                                     AES TRUST VII,
                                     a Delaware statutory business trust

                                     By:  THE AES CORPORATION,
                                            as Sponsor

                                     By: /s/ Barry J. Sharp
                                        --------------------------------------
                                        Name:  Barry J. Sharp
                                        Title: Senior Vice President and
                                               Chief Financial Officer

                                     THE AES CORPORATION

                                     By: /s/ William R. Luraschi
                                        --------------------------------------
                                        Name:  William R. Luraschi
                                        Title: Vice President and Secretary

                                     MORGAN STANLEY & CO. INCORPORATED,
                                     GOLDMAN, SACHS & CO.,
                                     J.P. MORGAN SECURITIES INC.,
                                     BANC OF AMERICA SECURITIES LLC,
                                     CREDIT SUISSE FIRST BOSTON CORPORATION,
                                     LEHMAN BROTHERS INC.,
                                     SALOMON SMITH BARNEY INC.

                                     By:  Morgan Stanley & Co. Incorporated

                                     By: /s/ Kenneth G. Pott
                                        --------------------------------------
                                        Name:  Kenneth G. Pott
                                        Title: Principal

                                     By: Goldman, Sachs & Co.

                                     By: /s/ Goldman, Sachs & Co.
                                        --------------------------------------
                                        Name:  Goldman, Sachs & Co.
                                        Title:EXHIBIT 4.3
===============================================================================

                   AMENDED AND RESTATED DECLARATION OF TRUST

                                       OF

                                 AES TRUST VII

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

                            Dated as of May 17, 2000

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

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

<PAGE>

                               TABLE OF CONTENTS*

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

                                                                           PAGE
                                                                           ----

                                            ARTICLE 1
                                           DEFINITIONS

SECTION 1.01.  Definitions...................................................2

                                   ARTICLE 2
                              TRUST INDENTURE ACT

SECTION 2.01.  Trust Indenture Act; Application..............................9
SECTION 2.02.  Lists of Holders of Preferred Securities......................9
SECTION 2.03.  Reports by the Property Trustee..............................10
SECTION 2.04.  Periodic Reports to Property Trustee.........................10
SECTION 2.05.  Evidence of Compliance with Conditions Precedent.............10
SECTION 2.06.  Events of Default; Waiver....................................10
SECTION 2.07.  Disclosure of Information....................................12

                                   ARTICLE 3
                                 ORGANIZATION

SECTION 3.01.  Name.........................................................13
SECTION 3.02.  Office.......................................................13
SECTION 3.03.  Issuance of the Trust Securities.............................13
SECTION 3.04.  Purchase of Debentures.......................................14
SECTION 3.05.  Purpose......................................................14
SECTION 3.06.  Authority....................................................15
SECTION 3.07.  Title to Property of the Trust...............................15
SECTION 3.08.  Powers and Duties of the Regular Trustees....................15
SECTION 3.09.  Prohibition of Actions by Trust and Trustees.................18
SECTION 3.10.  Powers and Duties of the Property Trustee....................19
SECTION 3.11.  Delaware Trustee.............................................22
SECTION 3.12.  Certain Rights and Duties of the Property Trustee............22
SECTION 3.13.  Filing of Amendments to Certificate of Trust.................25
SECTION 3.14.  Execution of Documents by Regular Trustees...................25
SECTION 3.15.  Trustees Not Responsible for Recitals or Issuance of
                  Securities................................................25
--------
*This Table of Contents does not constitute part of the Amended and Restated
Declaration of Trust and should not have any bearing upon the interpretation of
any of its terms or provisions.

                                       i
<PAGE>

                                                                           PAGE
                                                                           ----

SECTION 3.16.  Duration of Trust...........................................25

                                   ARTICLE 4
                                    SPONSOR

SECTION 4.01.  Purchase of Common Securities by Sponsor....................26
SECTION 4.02.  Expenses....................................................26

                                   ARTICLE 5
                                   TRUSTEES

SECTION 5.01.  Number of Trustees; Qualifications..........................27
SECTION 5.02.  Appointment, Removal and Resignation of Trustees............29
SECTION 5.03.  Vacancies among Trustees....................................31
SECTION 5.04.  Effect of Vacancies.........................................31
SECTION 5.05.  Meetings....................................................31
SECTION 5.06.  Delegation of Power.........................................31

                                   ARTICLE 6
                                 DISTRIBUTIONS

SECTION 6.01.  Distributions...............................................32

                                   ARTICLE 7
                            ISSUANCE OF SECURITIES

SECTION 7.01.  General Provisions Regarding Securities.....................32
SECTION 7.02.  Conversion Agent............................................34

                                   ARTICLE 8
                     DISSOLUTION AND TERMINATION OF TRUST

SECTION 8.01.  Dissolution of Trust........................................34
SECTION 8.02.  Termination of Trust........................................35

                                   ARTICLE 9
                             TRANSFER OF INTERESTS

SECTION 9.01.  Transfer of Securities......................................35
SECTION 9.02.  Transfer of Certificates....................................38
SECTION 9.03.  Deemed Security Holders.....................................38
SECTION 9.04.  Book Entry Interests........................................38

                                      ii
<PAGE>

                                                                           PAGE
                                                                           ----
SECTION 9.05.  Notices to Holders of Certificates..........................40
SECTION 9.06.  Appointment of Successor Clearing Agency....................40
SECTION 9.07.  Definitive Preferred Securities Certificates................40
SECTION 9.08.  Mutilated, Destroyed, Lost or Stolen Certificates...........41

                                   ARTICLE 10
                    LIMITATION OF LIABILITY; INDEMNIFICATION

SECTION 10.01.  Exculpation................................................41
SECTION 10.02.  Indemnification............................................42
SECTION 10.03.  Outside Business...........................................42

                                   ARTICLE 11
                                   ACCOUNTING

SECTION 11.01.  Fiscal Year................................................43
SECTION 11.02.  Certain Accounting Matters.................................43
SECTION 11.03.  Banking....................................................44
SECTION 11.04.  Withholding................................................44

                                   ARTICLE 12
                            AMENDMENTS AND MEETINGS

SECTION 12.01.  Amendments.................................................44
SECTION 12.02.  Meetings of the Holders of Securities; Action by Written
                    Consent................................................45

                                   ARTICLE 13
            REPRESENTATIONS OF PROPERTY TRUSTEE AND DELAWARE TRUSTEE

SECTION 13.01.  Representations and Warranties of Property Trustee.........47

                                   ARTICLE 14
                                 MISCELLANEOUS

SECTION 14.01.  Notices....................................................48
SECTION 14.02.  Undertaking for Costs......................................50
SECTION 14.03.  Governing Law..............................................50
SECTION 14.04.  Headings...................................................51
SECTION 14.05.  Partial Enforceability.....................................51
SECTION 14.06.  Counterparts...............................................51
SECTION 14.07.  Intention of the Parties...................................51

                                      iii
<PAGE>

                                                                           PAGE
                                                                           ----
SECTION 14.08.  Successors and Assigns.....................................51

SIGNATURES AND SEALS

EXHIBIT A:  CERTIFICATE OF TRUST
EXHIBIT B:  TERMS OF THE PREFERRED SECURITIES
EXHIBIT C:  TERMS OF THE COMMON SECURITIES

                                      iv
<PAGE>

                              AMENDED AND RESTATED
                              DECLARATION OF TRUST
                                       OF
                                 AES TRUST VII

                                  May 17, 2000

     AMENDED AND RESTATED DECLARATION OF TRUST ("Declaration") dated and
effective as of May 17, 2000 by the undersigned trustees (together with all
other Persons from time to time duly appointed and serving as trustees in
accordance with the provisions of this Declaration, the "Trustees"), The AES
Corporation, a Delaware corporation, as trust sponsor ("AES" or the "Sponsor"),
and by the holders, from time to time, of undivided beneficial interests in the
assets of the Trust to be issued pursuant to this Declaration.

     WHEREAS, the Sponsor and the Trustees entered into a Declaration of Trust
dated as of May 10, 2000 (the "Original Declaration") in order to establish a
statutory business trust (the "Trust") under the Business Trust Act (as
hereinafter defined);

     WHEREAS, the Certificate of Trust (the "Certificate of Trust") of the
Trust was filed with the office of the Secretary of State of the State of
Delaware on May 10, 2000;

     WHEREAS, the Trustees and the Sponsor desire to continue the Trust
pursuant to the Business Trust Act for the purpose of, as described more fully
in Sections 3.03 and 3.04 hereof, (i) issuing and selling Preferred Securities
(as defined herein) representing preferred undivided beneficial interests in
the assets of the Trust for cash and investing the proceeds thereof in
Debentures (as hereinafter defined) of AES issued under the Indenture (as
hereinafter defined) to be held as assets of the Trust and (ii) issuing and
selling Common Securities (as defined herein) representing common undivided
beneficial interests in the assets of the Trust to AES in exchange for cash and
investing the proceeds thereof in additional Debentures issued under the
Indenture to be held as assets of the Trust; and

     NOW, THEREFORE, it being the intention of the parties hereto that the
Trust constitute a business trust under the Business Trust Act, that the
Original Declaration be amended and restated in its entirety as provided herein
and that this Declaration constitute the governing instrument of such business
trust, the Trustees declare that all assets referred to in clauses (i) and (ii)
of the previous

<PAGE>

Whereas clause purchased by the Trust will be held in trust for the benefit of
the Holders (as defined herein) from time to time, of the Certificates (as
defined herein) representing undivided beneficial interests in the assets of
the Trust issued hereunder, subject to the provisions of this Declaration.

                                   ARTICLE 1
                                  DEFINITIONS

     SECTION 1.01. Definitions.

     (a) Capitalized terms used in this Declaration but not defined in the
preamble above have the respective meanings assigned to them in this Section
1.01;

     (b) a term defined anywhere in this Declaration has the same meaning
throughout;

     (c) all references to "the Declaration" or "this Declaration" are to this
Amended and Restated Declaration of Trust (including Exhibits A, B and C hereto
(the "Exhibits")) as modified, supplemented or amended from time to time;

     (d) all references in this Declaration to Articles and Sections and
Exhibits are to Articles and Sections of and Exhibits to this Declaration
unless otherwise specified;

     (e) a term defined in the Trust Indenture Act has the same meaning when
used in this Declaration unless otherwise defined in this Declaration or unless
the context otherwise requires; and

     (f) a reference to the singular includes the plural and vice versa.

     "Affiliate" has the same meaning as given to that term in Rule 405 of the
Securities Act or any successor rule thereunder.

     "Book Entry Interest" means a beneficial interest in a Global Certificate
registered in the name of a Clearing Agency or a nominee thereof, ownership and
transfers of which shall be maintained and made through book entries by such
Clearing Agency as described in Section 9.04.

                                       2
<PAGE>

     "Business Day" means any day other than a Saturday, Sunday or any other
day on which banking institutions in the City of New York, in the State of New
York are authorized or required by applicable law to close.

     "Business Trust Act" means Chapter 38 of Title 12 of the Delaware Code, 12
Del. Codess. 3801 et seq., as it may be amended from time to time.

     "Certificate" means a Common Security Certificate or a Preferred Security
Certificate.

     "Certificate of Trust" has the meaning set forth in the second Whereas
clause above.

     "Clearing Agency" means an organization registered as a "Clearing Agency"
pursuant to Section 17A of the Exchange Act that is acting as depository for
the Preferred Securities and in whose name or in the name of a nominee of that
organization, shall be registered a Global Certificate and which shall
undertake to effect book entry transfers and pledges of the Preferred
Securities.

     "Clearing Agency Participant" means a broker, dealer, bank, other
financial institution or other Person for whom from time to time the Clearing
Agency effects book entry transfers and pledges of securities deposited with
the Clearing Agency.

     "Closing Date" means the Closing Date as specified in the Purchase
Agreement, which date is also the date of execution and delivery of this
Declaration.

     "Code" means the Internal Revenue Code of 1986, as amended from time to
time, or any successor legislation. A reference to a specific section ((Sec.))
of the Code refers not only to such specific section but also to any
corresponding provision of any federal tax statute enacted after the date of
this Declaration, as such specific section or corresponding provision is in
effect on the date of application of the provisions of this Declaration
containing such reference.

     "Commission" means the Securities and Exchange Commission.

     "Common Security" has the meaning specified in Section 7.01(b).

     "Common Security Certificate" means a definitive certificate in fully
registered form representing a Common Security substantially in the form of
Annex I to Exhibit C.

                                       3
<PAGE>

     "Common Stock" means the common stock of AES, par value $.01 per share.

     "Conversion Agent" has the meaning specified in Section 7.02.

     "Covered Person" means (i) any officer, director, shareholder, partner,
member, representative, employee or agent of the Trust or its Affiliates, (ii)
any officer, director, shareholder, employees, representatives or agents of AES
or its Affiliates and (iii) the Holders from time to time of the Securities.

     "Debenture Trustee" means Bank One, National Association (formerly known
as The First National Bank of Chicago), as trustee under the Indenture until a
successor is appointed thereunder and thereafter means such successor trustee.

     "Debentures" means the series of Junior Subordinated Convertible
Debentures issued by AES under the Indenture to the Property Trustee and
entitled the "6% Junior Subordinated Debentures due 2008".

     "Definitive Preferred Security Certificates" has the meaning set forth in
Section 9.04.

     "Delaware Trustee" has the meaning set forth in Section 5.01(a)(iii).

     "Depositary Agreement" means the agreement among the Trust, the Property
Trustee and DTC dated as on or about of the Closing Date, as the same may be
amended or supplemented from time to time.

     "Distribution" means a distribution payable to Holders of Securities in
accordance with Section 6.01.

     "DTC" means The Depository Trust Company, the initial Clearing Agency.

     "Event of Default" in respect of the Securities means an Indenture Event
of Default has occurred and is continuing in respect of the Debentures.

     "Exchange Act" means the Securities Exchange Act of 1934, as amended from
time to time or any successor legislation.

     "Fiscal Year" has the meaning specified in Section 11.01.

     "Global Certificate" has the meaning set forth in Section 9.04.

                                       4
<PAGE>

     "Holder" means a Person in whose name a Certificate representing a
Security is registered, such Person being a beneficial owner within the meaning
of the Business Trust Act.

     "Indemnified Person" means any Trustee, any Affiliate of any Trustee, any
Conversion Agent, any Paying Agent, any officers, directors, shareholders,
members, partners, employees, representatives or agents of any Trustee,
Conversion Agent or Paying Agent, or any employee or agent of the Trust or its
Affiliates.

     "Indenture" means the Junior Subordinated Indenture dated as of March 1,
1997 between AES and the Debenture Trustee as supplemented by the Supplemental
Indenture and as further amended, supplemented, modified or superceded from
time to time.

     "Indenture Event of Default" means an event or condition defined as an
"Event of Default" with respect to the Debentures under Section 6.01(a) of the
Indenture has occurred and is continuing.

     "Initial Purchasers" means the initial purchasers as defined in the
Purchase Agreement.

     "Investment Company" means an investment company as defined in the
Investment Company Act.

     "Investment Company Act" means the Investment Company Act of 1940, as
amended from time to time or any successor legislation.

     "Legal Action" has the meaning specified in Section 3.08(g).

     "Liquidation Distribution" has the meaning set forth in Exhibits B and C
hereto establishing the terms of the Securities.

     "Majority in liquidation amount of the Securities" means, except as
otherwise required by the Trust Indenture Act and except as provided in the
penultimate paragraph of paragraph 6 of Exhibit B hereto, Holder(s) of
outstanding Securities voting together as a single class or, as the context may
require, Holder(s) of outstanding Preferred Securities or Common Securities
voting separately as a class, who are the record owners of a relevant class of
Securities whose liquidation amount (including the stated amount that would be
paid on redemption, liquidation or otherwise, plus accrued and unpaid
Distributions to the date upon which the voting percentages are determined)

                                       5
<PAGE>

represents more than 50% of the liquidation amount of all outstanding
Securities of such class.

     "Ministerial Action" has the meaning set forth in the terms of the
Securities as set forth in Exhibits B and C hereto.

     "144A Global Security" has the meaning specified in Section 9.04(b).

     "Option Closing Date" means the Option Closing Date as specified in the
Purchase Agreement.

     "Original Declaration" has the meaning set forth in the first WHEREAS
clause above.

     "Paying Agent" has the meaning specified in Section 3.10(i).

     "Person" means a legal person, including any individual, corporation,
estate, partnership, joint venture, association, joint stock company, limited
liability company, trust, unincorporated association, or government or any
agency or political subdivision thereof, or any other entity of whatever
nature.

     "PORTAL Market" means the Private Offerings, Resales and Trading through
Automated Linkages Market operated by the National Association of Securities
Dealers, Inc. (or any successor thereto).

     "Preferred Securities Guarantee" means the Preferred Securities Guarantee
Agreement dated as of May 17, 2000 of AES in respect of the Preferred
Securities.

     "Preferred Security" has the meaning specified in Section 7.01(b).

     "Preferred Security Beneficial Owner" means, with respect to a Book Entry
Interest, a Person who is the beneficial owner of such Book Entry Interest, as
reflected on the books of the Clearing Agency, or on the books of a Person
maintaining an account with such Clearing Agency (directly as a Clearing Agency
Participant or as an indirect participant, in each case in accordance with the
rules of such Clearing Agency).

     "Preferred Security Certificate" means a definitive certificate in fully
registered form representing a Preferred Security substantially in the form of
Annex I to Exhibit B.

                                       6
<PAGE>

     "Property Trustee" means the Trustee meeting the eligibility requirements
set forth in Section 5.01(c) and having the duties set forth for the Property
Trustee herein.

     "Property Account" has the meaning specified in Section 3.10(c)(i).

     "Purchase Agreement" means the Purchase Agreement dated as of May, 11,
2000 among the Trust, the Sponsor, Morgan Stanley & Co. Incorporated, Goldman,
Sachs & Co., Banc of America Securities LLC, Credit Suisse First Boston
Corporation, Lehman Brothers Inc. and Salomon Smith Barney Inc.

     "QIB" means a "qualified institutional buyer" as defined in Rule 144A.

     "Quorum" means a majority of the Regular Trustees or, if there are only
two Regular Trustees, both such Regular Trustees.

     "Registration Rights Agreement" means the Registration Rights Agreement
dated as of May 17, 2000 among The AES Corporation, AES Trust VII, Morgan
Stanley & Co. Incorporated, Goldman, Sachs & Co., Banc of America Securities
LLC, Credit Suisse First Boston Corporation, Lehman Brothers Inc. and Salomon
Smith Barney Inc.

     "Regular Trustee" means any Trustee other than the Property Trustee and
the Delaware Trustee.

     "Related Party" means any direct or indirect wholly owned subsidiary of
AES or any other Person which owns, directly or indirectly, 100% of the
outstanding voting securities of AES.

     "Resignation Request" has the meaning specified in Section 5.02(d).

     "Responsible Officer" means, with respect to the Property Trustee, the
chairman of the board of directors, the president, any vice-president, any
assistant vice-president, the secretary, any assistant secretary, the
treasurer, any assistant treasurer, any trust officer or assistant trust
officer or any other officer of the Property Trustee customarily performing
functions similar to those performed by any of the above designated officers
and also means, with respect to a particular corporate trust matter, any other
officer to whom such matter is referred because of that officer's knowledge of
and familiarity with the particular subject.

     "Restricted Security" has the meaning specified in Section 9.01(d).

     "Rule 144" means Rule 144 as promulgated under the Securities Act.

                                       7
<PAGE>

     "Rule 144A" means Rule 144A as promulgated under the Securities Act.

     "Rule 144(k)" means Rule 144(k) as promulgated under the Securities Act.

     "Rule 3a-7" means Rule 3a-7 under the Investment Company Act or any
successor rule thereunder.

     "Securities" means the Common Securities and the Preferred Securities.

     "Securities Act" means the Securities Act of 1933, as amended from time to
time or any successor legislation.

     "Special Event" has the meaning set forth in the terms of the Securities
as set forth in Exhibits B and C hereto.

     "Sponsor" or "AES" means The AES Corporation, a Delaware corporation, or
any successor entity in a merger, in its capacity as sponsor of the Trust.

     "Successor Delaware Trustee" has the meaning specified in Section
5.02(b)(ii).

     "Successor Property Trustee" means a successor Trustee possessing the
qualifications to act as Property Trustee under Section 5.01(c).

     "Supplemental Indenture" means the Seventh Supplemental Indenture dated as
of May 17, 2000 between AES and the Debenture Trustee.

     "10% in liquidation amount of the Securities" means, except as otherwise
required by the Trust Indenture Act and except as provided in the penultimate
paragraph of paragraph 6 of Exhibit B hereto, Holder(s) of outstanding
Securities voting together as a single class or, as the context may require,
Holder(s) of outstanding Preferred Securities or Common Securities, voting
separately as a class, who are the record owners of a relevant class of
Securities whose liquidation amount (including the stated amount that would be
paid on redemption, liquidation or otherwise, plus accrued and unpaid
Distributions to the date upon which the voting percentages are determined)
represents 10% or more of the liquidation amount of all outstanding Securities
of such class.

     "Transfer Restriction Termination Date" means the first date on which the
Securities and any Common Stock issued or issuable upon the conversion or

                                       8
<PAGE>

exchange thereof (other than (i) Securities acquired by the Trust or any
Affiliate thereof and (ii) Common Stock issued upon the conversion or exchange
of any Security described in clause (i) above) may be sold pursuant to Rule
144(k).

     "Treasury Regulations" means the income tax regulations including
temporary and proposed regulations, promulgated under the Code by the United
States Treasury, as such regulations may be amended from time to time
(including corresponding provisions of succeeding regulations).

     "Trustee" or "Trustees" means each Person who has signed this Declaration
as a trustee, so long as such Person shall continue in office in accordance
with the terms hereof, and all other Persons who may from time to time be duly
appointed, qualified and serving as Trustees in accordance with the provisions
hereof, and references herein to a Trustee or the Trustees shall refer to such
Person or Persons solely in their capacity as trustees hereunder.

     "Trust Indenture Act" means the Trust Indenture Act of 1939, as amended.

                                   ARTICLE 2
                              TRUST INDENTURE ACT

     SECTION 2.01. Trust Indenture Act; Application.

     (a) This Declaration is subject to the provisions of the Trust Indenture
Act that are required to be part of this Declaration and shall, to the extent
applicable, be governed by such provisions;

     (b) if and to the extent that any provision of this Declaration limits,
qualifies or conflicts with the duties imposed by ss.ss.310 to 317, inclusive,
of the Trust Indenture Act, such imposed duties shall control;

     (c) the Property Trustee, to the extent permitted by applicable law and/or
the rules and regulations of the Commission, shall be the only Trustee which is
a trustee for the purposes of the Trust Indenture Act; and

     (d) the application of the Trust Indenture Act to this Declaration shall
not affect the nature of the Securities as equity securities representing
undivided beneficial interests in the assets of the Trust.

     SECTION 2.02. Lists of Holders of Preferred Securities.

                                       9
<PAGE>

     (a) Each of the Sponsor and the Regular Trustees on behalf of the Trust
shall provide the Property Trustee with such information as is required under
ss. 312(a) of the Trust Indenture Act at the times and in the manner provided
in ss. 312(a); and

     (b) the Property Trustee shall comply with its obligations under ss.ss.
310(b), 311 and 312(b) of the Trust Indenture Act.

     SECTION 2.03. Reports by the Property Trustee. Within 60 days after May 15
of each year, commencing May 15, 2000, the Property Trustee shall provide to
the Holders of the Securities such reports as are required by ss. 313 of the
Trust Indenture Act, if any, in the form, in the manner and at the times
provided by ss. 313 of the Trust Indenture Act. The Property Trustee shall also
comply with the requirements of ss. 313(d) of the Trust Indenture Act.

     SECTION 2.04. Periodic Reports to Property Trustee. Each of the Sponsor
and the Regular Trustees on behalf of the Trust shall provide to the Property
Trustee, the Commission and the Holders of the Securities, as applicable, such
documents, reports and information as required by ss. 314(a)(1)-(3) (if any) of
the Trust Indenture Act and the compliance certificates required by ss.
314(a)(4) and (c) of the Trust Indenture Act, any such certificates to be
provided in the form, in the manner and at the times required by ss. 314(a)(4)
and (c) of the Trust Indenture Act (provided that any certificate to be
provided pursuant to ss. 314(a)(4) of the Trust Indenture Act shall be provided
within 120 days of the end of each Fiscal Year).

     SECTION 2.05. Evidence of Compliance with Conditions Precedent. Each of
the Sponsor and the Regular Trustees on behalf of the Trust shall provide to
the Property Trustee such evidence of compliance with any conditions precedent,
if any, provided for in this Declaration which relate to any of the matters set
forth in ss. 314(c) of the Trust Indenture Act. Any certificate or opinion
required to be given pursuant to ss. 314(c) shall comply with ss. 314(e) of the
Trust Indenture Act.

     SECTION 2.06. Events of Default; Waiver. (a) Subject to Section 2.06(c),
Holders of Preferred Securities may, by vote of at least a Majority in
liquidation amount of the Preferred Securities (A) in accordance with the terms
of the Preferred Securities, direct the time, method and place of conducting
any proceeding for any remedy available to the Property Trustee, or exercising
any trust or power conferred upon the Property Trustee, or (B) on behalf of the
Holders of all Preferred Securities, waive any past Event of Default in respect
of the Preferred Securities and its consequences; provided that if the Event of
Default arises out of an Indenture Event of Default:

                                      10
<PAGE>

          (i) which is not waivable under the Indenture, the Event of Default
     under this Declaration shall also be not waivable; or

          (ii) which requires the consent or vote of (1) holders of Debentures
     representing a specified percentage greater than a majority in principal
     amount of the Debentures, or (2) each holder of Debentures, the Event of
     Default under this Declaration may only be waived by, in the case of
     clause (1) above, the vote of Holders of Preferred Securities representing
     such specified percentage of the aggregate liquidation amount of the
     Preferred Securities or, in the case of clause (2) above, each Holder of
     Preferred Securities.

     Upon such waiver, any such default shall cease to exist, and any Event of
Default with respect to the Preferred Securities arising therefrom shall be
deemed to have been cured for every purpose of this Declaration, but no such
waiver shall extend to any subsequent or other default or Event of Default with
respect to the Preferred Securities or impair any right consequent thereon.

     (b) Subject to Section 2.06(c), Holders of Common Securities may by vote
of at least a Majority in liquidation amount of the Common Securities, (A) in
accordance with the terms of the Common Securities, direct the time, method and
place of conducting any proceeding for any remedy available to the Property
Trustee or exercising any trust or power conferred upon the Property Trustee or
(B) on behalf of the Holders of all of the Common Securities, waive any past
Event of Default with respect to the Common Securities and its consequences,
provided that, if the Event of Default arises out of an Indenture Event of
Default:

          (i) which is not waivable under the Indenture, except where the
     Holders of the Common Securities are deemed to have waived such Event of
     Default under the Declaration as provided below, the Event of Default
     under this Declaration shall also not be waivable; or

          (ii) which requires the consent or vote of (1) holders of Debentures
     representing a specified percentage greater than a majority in principal
     amount of the Debentures or (2) each holder of Debentures, except where
     the holders of the Common Securities are deemed to have waived such Event
     of Default under this Declaration as provided below, the Event of Default
     under this Declaration may only be waived by, in the case of clause (1)
     above, the vote of Holders of Common Securities representing such
     specified percentage of the aggregate liquidation amount of the Common
     Securities or, in the case of clause (2) above, each holder of Common
     Securities; and

                                      11
<PAGE>

provided, further, that each Holder of Common Securities will be deemed to have
waived any Event of Default with respect to the Common Securities and its
consequences until all Events of Default with respect to the Preferred
Securities have been cured, waived by the Holders of Preferred Securities as
provided in this Declaration or otherwise eliminated and until all Events of
Default with respect to the Preferred Securities have been so cured, waived or
otherwise eliminated, the Property Trustee will be deemed to be acting solely
on behalf of the Holders of the Preferred Securities and only the Holders of
the Preferred Securities will have the right to direct the Property Trustee in
accordance with the terms of this Declaration or the Securities. In the event
that any Event of Default with respect to the Preferred Securities is waived by
the Holders of Preferred Securities as provided in this Declaration, the
Holders of Common Securities agree that such waiver shall also constitute the
waiver of such Event of Default with respect to the Common Securities for all
purposes under this Declaration without any further act, vote or consent of the
Holders of the Common Securities. Subject to the foregoing provisions of this
Section 2.06(b), upon such waiver, any such default shall cease to exist and
any Event of Default with respect to the Common Securities arising therefrom
shall be deemed to have been cured for every purpose of this Declaration, but
no such waiver shall extend to any subsequent or other default or Event of
Default with respect to the Common Securities or impair any right consequent
thereon.

     (c) The right of any Holder of Securities to receive payment of
Distributions on the Securities in accordance with this Declaration and the
terms of the Securities set forth in Exhibits B and C on or after the
respective payment dates therefor, or to institute suit for the enforcement of
any such payment on or after such payment dates, shall not be impaired without
the consent of such Holder.

     (d) As provided in the terms of the Securities set forth in Exhibits B and
C hereto, a waiver of an Indenture Event of Default by the Property Trustee at
the written direction of the Holders of the Preferred Securities constitutes a
waiver of the corresponding Event of Default under this Declaration in respect
of the Securities.

     SECTION 2.07. Disclosure of Information. The disclosure of information as
to the names and addresses of the Holders of the Securities in accordance with
ss. 312 of the Trust Indenture Act, regardless of the source from which such
information was derived, shall not be deemed to be a violation of any existing
law, or any law hereafter enacted which does not specifically refer to ss. 312
of the Trust Indenture Act, nor shall the Property Trustee be held accountable
by reason of mailing any material pursuant to a request made under ss. 312(b)
of the Trust Indenture Act.

                                      12
<PAGE>

                                   ARTICLE 3
                                  ORGANIZATION

     SECTION 3.01. Name. The Trust continued by this Declaration is named "AES
Trust VII" as such name may be modified from time to time by the Regular
Trustees following written notice to the Holders of Securities. The Trust's
activities may be conducted under the name of the Trust or any other name
deemed advisable by the Regular Trustees.

     SECTION 3.02. Office. The address of the principal office of the Trust is
c/o The AES Corporation, 1001 North 19th Street, Arlington, Virginia 22209.
Upon ten days' written notice to the Holders, the Regular Trustees may change
the location of the Trust's principal office. The name of the registered agent
and office of the Trust in the State of Delaware is The Corporation Trust
Company, 1209 Orange Street, Wilmington, Delaware 19801. At any time, the
Regular Trustees may designate another registered agent and/or registered
office.

     SECTION 3.03. Issuance of the Trust Securities. On May 11, 2000 the
Sponsor, on behalf of the Trust and pursuant to the Original Declaration,
executed and delivered the Purchase Agreement. On the Closing Date and
contemporaneously with the execution and delivery of this Declaration, the
Regular Trustees, on behalf of the Trust, shall execute and deliver to (i) the
Initial Purchasers named in the Purchase Agreement, Global Certificates,
registered in the name of the nominee of the initial Clearing Agency as
specified in Section 9.04, in an aggregate amount of 8,000,000 Preferred
Securities having an aggregate liquidation amount of $400,000,000, against
receipt of the aggregate purchase price of such Preferred Securities of
$400,000,000, and (ii) the Sponsor, Common Securities Certificates, registered
in the name of the Sponsor, in an aggregate amount of 247,423 Common Securities
having an aggregate liquidation amount of $12,371,150, against receipt of the
aggregate purchase price of such Common Securities of $12,371,150. In the event
and to the extent the overallotment option granted by the Trust pursuant to the
Purchase Agreement is exercised by such Initial Purchasers, on the Option
Closing Date the Regular Trustees, on behalf of the Trust, shall execute and
deliver to (i) such Initial Purchasers Global Certificates, registered in the
name of the nominee of the initial Clearing Agency as specified in Section
9.04, in an aggregate amount of up to 1,200,000 Preferred Securities having an
aggregate liquidation amount of up to $60,000,000 against receipt of the
aggregate purchase price of such Preferred Securities of up to $60,000,000, and
(ii) the Sponsor, Common Security Certificates, registered in the name of the
Sponsor, in an aggregate amount of 37,113 Common Security having an aggregate
liquidation of $1,855,650, against receipt of the aggregate purchase price of
such Common Securities of up to $1,855,650.

                                      13
<PAGE>

     SECTION 3.04. Purchase of Debentures. On the Closing Date and
contemporaneously with the execution and delivery of this Declaration, the
Regular Trustees, on behalf of the Trust, shall purchase from the Sponsor with
the proceeds received by the Trust from the sale of the Securities on such date
pursuant to Section 3.03, at a purchase price of 100% of the principal amount
thereof, Debentures, registered in the name of the Property Trustee and having
an aggregate principal amount equal to $412,371,150, and, in satisfaction of
the purchase price for such Debentures, the Regular Trustee, on behalf of the
Trust, shall deliver or cause to be delivered to the Sponsor the sum of
$412,371,150. In the event the overallotment option granted by the Trust with
respect to the Preferred Securities pursuant to the Purchase Agreement is
exercised by the Initial Purchasers named therein, on the Option Closing Date
the Regular Trustees, on behalf of the Trust, shall purchase from the Sponsor
with the proceeds received by the Trust from the sale of the Securities on such
date pursuant to Section 3.03, at a purchase price of 100% of the principal
amount thereof, additional Debentures, registered in the name of the Property
Trustee and having an aggregate principal amount of up to $61,855,650, and, in
satisfaction of the purchase price for such Debentures, the Regular Trustees,
on behalf of the Trust, shall deliver or cause to be delivered to the Sponsor
an amount equal to the aggregate principal amount of the Debentures being
purchased.

     SECTION 3.05. Purpose. The exclusive purposes and functions of the Trust
are: (a)(i) to issue and sell Preferred Securities for cash and use the
proceeds of such sales to acquire from AES Debentures issued under the
Indenture having an aggregate principal amount equal to the aggregate
liquidation amount of the Preferred Securities so issued and sold; (ii) to
enter into such agreements and arrangements as may be necessary in connection
with the sale of Preferred Securities to the initial purchasers thereof
(including the Purchase Agreement and the Registration Rights Agreement) and to
take all action, and exercise such discretion, as may be necessary or desirable
in connection therewith and to file such registration statements or make such
other filings under the Securities Act, the Exchange Act or state securities or
"Blue Sky" laws as may be necessary or desirable in connection therewith and
the issuance of the Preferred Securities; and (iii) to issue and sell Common
Securities to AES for cash and use the proceeds of such sale to purchase as
trust assets an equal aggregate principal amount of Debentures issued under the
Indenture; and (b) except as otherwise limited herein, to engage in only those
other activities necessary, convenient or incidental thereto. The Trust shall
not borrow money, issue debt or reinvest proceeds derived from investments,
pledge any of its assets or at any time while the Securities are outstanding,
otherwise undertake (or permit to be undertaken) any activity that would result
in or cause the Trust to be treated as anything other than a grantor trust for
United States federal income tax purposes.

                                      14
<PAGE>

     SECTION 3.06. Authority. Subject to the limitations provided in this
Declaration and to the specific duties of the Property Trustee, the Regular
Trustees shall have exclusive and complete authority to carry out the purposes
of the Trust. An action taken by the Regular Trustees in accordance with their
powers shall constitute the act of and serve to bind the Trust and an action
taken by the Property Trustee in accordance with its powers shall constitute
the act of and serve to bind the Trust. In dealing with the Trustees acting on
behalf of the Trust, no Person shall be required to inquire into the authority
of the Trustees to bind the Trust. Persons dealing with the Trust are entitled
to rely conclusively on the power and authority of the Trustees as set forth in
this Declaration.

     SECTION 3.07. Title to Property of the Trust. Except as provided in
Section 3.10 with respect to the Debentures and the Property Account or unless
otherwise provided in this Declaration, legal title to all assets of the Trust
shall be vested in the Trust. The Holders shall not have legal title to any
part of the assets of the Trust, but shall have an individual undivided
beneficial interest in the assets of the Trust.

     SECTION 3.08. Powers and Duties of the Regular Trustees. The Regular
Trustees shall have the exclusive power, authority and duty to cause the Trust,
and shall cause the Trust, to engage in the following activities:

     (a) to issue Preferred Securities and Common Securities, in each case in
accordance with this Declaration; provided, however, that the Trust may issue
no more than one series of Preferred Securities and no more than one series of
Common Securities, and, provided further, that there shall be no interests in
the Trust other than the Securities and the issuance of Securities shall be
limited to (x) a one-time, simultaneous issuance of both Preferred Securities
and Common Securities on the Closing Date and (y) any subsequent simultaneous
issuance of both Preferred Securities and Common Securities on the Option
Closing Date pursuant to an exercise of the overallotment option granted to
Initial Purchasers in the Purchase Agreement;

     (b) in connection with the issuance of the Preferred Securities, at the
direction of the Sponsor, to effect or cause to be effected the filings, and to
execute, deliver and perform on behalf of the Trust the Depositary Agreement;

     (c) to acquire as trust assets Debentures with the proceeds of the sale of
the Preferred Securities and Common Securities; provided, however, that the
Regular Trustees shall cause legal title to all of the Debentures to be vested
in, and the Debentures to be held of record in the name of, the Property
Trustee for the benefit of the Holders of the Preferred Securities and the
Common Securities;

                                      15
<PAGE>

     (d) to cause the Trust to enter into such other agreements and
arrangements as may be necessary or desirable in connection with the sale of
Preferred Securities to the initial purchasers thereof and the consummation
thereof, and to take all action, and exercise all discretion, as may be
necessary or desirable in connection with the consummation thereof;

     (e) to give the Sponsor and the Property Trustee prompt written notice of
the occurrence of a Special Event; provided, that the Regular Trustees shall
consult with the Sponsor and the Property Trustee before taking or refraining
to take any Ministerial Action in relation to a Special Event;

     (f) to establish a record date with respect to all actions to be taken
hereunder that require a record date be established, including for the purposes
of Section 316(c) of the Trust Indenture Act and with respect to Distributions,
voting rights, redemptions, and exchanges, and to issue relevant notices to
Holders of the Preferred Securities and Common Securities as to such actions
and applicable record dates;

     (g) to bring or defend, pay, collect, compromise, arbitrate, resort to
legal action or otherwise adjust claims or demands of or against the Trust
("Legal Action"), unless pursuant to Section 3.10(e), the Property Trustee has
the exclusive power to bring such Legal Action;

     (h) to employ or otherwise engage employees and agents (who may be
designated as officers with titles) and managers, contractors, advisors and
consultants and pay reasonable compensation for such services;

     (i) to cause the Trust to comply with the Trust's obligations under the
Trust Indenture Act;

     (j) to give the certificate to the Property Trustee required by ss.
314(a)(4) of the Trust Indenture Act, which certificate may be executed by any
Regular Trustee;

     (k) to incur expenses which are necessary or incidental to carrying out
any of the purposes of the Trust;

     (l) to act as, or appoint another Person to act as, registrar and transfer
agent for the Securities, the Regular Trustees hereby initially appointing the
Property Trustee for such purposes;

                                      16
<PAGE>

     (m) to take all actions and perform such duties as may be required of the
Regular Trustee pursuant to the terms of the Securities set forth in Exhibits B
and C hereto;

     (n) to execute all documents or instruments, perform all duties and powers
and do all things for and on behalf of the Trust in all matters necessary or
incidental to the foregoing;

     (o) to take all action which may be necessary or appropriate for the
preservation and the continuation of the Trust's valid existence, rights,
franchises and privileges as a statutory business trust under the laws of the
State of Delaware and of each other jurisdiction in which such existence is
necessary to protect the limited liability of the Holders of the Securities or
to enable the Trust to effect the purposes for which the Trust has been
created;

     (p) to take all action, not inconsistent with this Declaration or with
applicable law, which the Regular Trustees determine in their discretion to be
reasonable and necessary or desirable in carrying out the activities of the
Trust as set out in this Section 3.08, in order that:

          (i) the Trust will not be deemed to be an Investment Company required
     to be registered under the Investment Company Act;

          (ii) the Trust will not be classified for United States federal
     income tax purposes as an association taxable as a corporation or a
     partnership and will be treated as a grantor trust for United States
     federal income tax purposes; and

          (iii) the Trust will comply with any requirements imposed by any
     taxing authority on holders of instruments treated as indebtedness for
     United States federal income tax purposes;

provided that such action does not adversely affect the interests of Holders;

     (q) to take all action necessary to cause all applicable tax returns and
tax information reports that are required to be filed with respect to the Trust
to be duly prepared and filed by the Regular Trustees, on behalf of the Trust;
and

     (r) subject to the requirements of Rule 3a-7 and ss. 317(b) of the Trust
Indenture Act, to appoint one or more Paying Agents in addition to the Property
Trustee.

                                      17
<PAGE>

     The Regular Trustees must exercise the powers set forth in this Section
3.08 in a manner which is consistent with the purposes and functions of the
Trust set out in Section 3.05 and the Regular Trustees shall not take any
action which is inconsistent with the purposes and functions of the Trust set
forth in Section 3.05.

     Subject to this Section 3.08, the Regular Trustees shall have none of the
powers nor any of the authority of the Property Trustee set forth in Section
3.10.

     SECTION 3.09. Prohibition of Actions by Trust and Trustees. The Trust
shall not, and the Trustees (including the Property Trustee) shall cause the
Trust not to, engage in any activity other than as required or authorized by
this Declaration. In particular, the Trust shall not and the Trustees
(including the Property Trustee) shall not cause the Trust to:

     (a) invest any proceeds received by the Trust from holding the Debentures
but shall promptly distribute all such proceeds to Holders of Securities
pursuant to the terms of this Declaration and of the Securities;

     (b) acquire any assets other than as expressly provided herein;

     (c) possess Trust property for other than a Trust purpose;

     (d) make any loans, other than loans represented by the Debentures;

     (e) possess any power or otherwise act in such a way as to vary the Trust
assets or the terms of the Securities in any way whatsoever;

     (f) issue any securities or other evidences of beneficial ownership of, or
beneficial interests in, the Trust other than the Securities;

     (g) incur any indebtedness for borrowed money; or

     (h) (i) direct the time, method and place of exercising any trust or power
conferred upon the Debenture Trustee with respect to the Debentures, (ii) waive
any past default that is waivable under Section 6.06 of the Indenture, (iii)
exercise any right to rescind or annul any declaration that the principal of
all of the Debentures shall be due and payable or (iv) consent to any
amendment, modification or termination of the Indenture or the Debentures,
where such consent shall be required, unless in the case of this clause (h) the
Property Trustee shall have received an unqualified opinion of nationally
recognized independent tax counsel recognized as expert in such matters to the
effect that such action will not cause the Trust to be classified for United
States federal income tax purposes as an association taxable as a corporation
or partnership and that the Trust will

                                      18
<PAGE>

continue to be classified as a grantor trust for United States federal income
tax purposes.

     SECTION 3.10. Powers and Duties of the Property Trustee. (a) The legal
title to the Debentures shall be owned by and held of record in the name of the
Property Trustee in trust for the benefit of the Holders of the Securities. The
right, title and interest of the Property Trustee to the Debentures shall vest
automatically in each Person who may hereafter be appointed as Property Trustee
in accordance with Article 5. Such vesting and cessation of title shall be
effective whether or not conveyancing documents have been executed and
delivered.

     (b) The Property Trustee shall not transfer its right, title and interest
in the Debentures to the Regular Trustees or, if the Property Trustee does not
also act as the Delaware Trustee, the Delaware Trustee.

     (c) The Property Trustee shall:

          (i) establish and maintain a segregated non-interest bearing bank
     account (the "Property Account") in the name of and under the exclusive
     control of the Property Trustee on behalf of the Holders of the Securities
     and on the receipt of payments of funds made in respect of the Debentures
     held by the Property Trustee, deposit such funds into the Property Account
     and, without any further acts of the Property Trustee or the Regular
     Trustees, promptly make payments to the Holders of the Preferred
     Securities and Common Securities from the Property Account in accordance
     with Section 6.01. Funds in the Property Account shall be held uninvested,
     and without liability for interest thereon, until disbursed in accordance
     with this Declaration. The Property Account shall be an account which is
     maintained with a banking institution whose long term unsecured
     indebtedness is rated by a "nationally recognized statistical rating
     organization", as such term is defined for purposes of Rule 436(g)(2)
     under the Securities Act, at least equal to (but in no event less than "A"
     or the equivalent) the rating assigned to the Preferred Securities by a
     nationally recognized statistical rating organization;

          (ii) engage in such ministerial activities as shall be necessary or
     appropriate to effect promptly the redemption of the Preferred Securities
     and the Common Securities to the extent the Debentures are redeemed or
     mature;

          (iii) upon notice of distribution issued by the Regular Trustees in
     accordance with the terms of the Preferred Securities and the Common
     Securities, engage in such ministerial activities as shall be necessary or

                                      19
<PAGE>

     appropriate to effect promptly the distribution pursuant to terms of the
     Securities of Debentures to Holders of Securities upon the occurrence of a
     Special Event; and

          (iv) have the legal power to exercise all of the rights, powers and
     privileges of a holder of the Debentures under the Indenture and, if an
     Event of Default occurs and is continuing, the Property Trustee, subject
     to Section 2.06(b), shall for the benefit of the Holders of the
     Securities, enforce its rights as holder of the Debentures under the
     Indenture, subject to the rights of the Holders of the Preferred
     Securities pursuant to the terms of this Declaration, the Business Trust
     Act and the Trust Indenture Act.

     (d) The Property Trustee shall take all actions and perform such duties as
may be specifically required of the Property Trustee pursuant to the terms of
the Securities set forth in Exhibits B and C hereto.

     (e) The Property Trustee shall take any Legal Action which arises out of
or in connection with an Event of Default or the Property Trustee's duties and
obligations under this Declaration, the Business Trust Act or the Trust
Indenture Act; provided however, that the holders of a Majority in liquidation
amount of the Preferred Securities will have the right to direct the time,
method and place of conducting any proceeding for any remedy available to the
Property Trustee or to direct the exercise of any trust or power conferred upon
the Property Trustee under the Declaration, including the right to direct the
Property Trustee to exercise the remedies available to it as a holder of the
Debentures. If the Property Trustee fails to enforce its rights under the
Debentures, a Holder of Preferred Securities, to the extent permitted by law,
after a period of 30 days has elapsed from such holder's written request to the
Property Trustee to enforce such rights, may institute a legal proceeding
directly against AES to enforce the Property Trustee's rights under the
Debentures without first instituting any legal proceeding against the Property
Trustee or any other Person; provided further, that the holders of 25% in
aggregate liquidation preference of the outstanding Preferred Securities have
the right to directly institute proceedings for the enforcement of payments to
such holders of principal of, premium, if any, or interest on the Debentures
having a principal amount equal to the aggregate liquidation preference of the
Preferred Securities of such holders; and provided further, that, if an Event
of Default has occurred and is continuing and such event is attributed to the
failure of the Sponsor to pay interest or principal on the Debentures on the
date such interest or principal is otherwise payable (or in the case of
redemption, on the redemption date), then a Holder of Preferred Securities may
directly institute a proceeding for enforcement of payment to such Holder of
the principal of or interest on the Debentures having a principal amount equal
to the aggregate liquidation amount

                                      20
<PAGE>

of the Preferred Securities of such Holder (a "Holder Direct Action") on or
after the respective due date specified in the Debentures. In connection with
such Holder Direct Action, the Holders of the Common Securities will be
subrogated to the rights of such Holder of Preferred Securities to the extent
of any payment made by the Sponsor to such Holders of Preferred Securities in
such Holder Direct Action. Except as provided in the preceding sentences, the
Holders of Preferred Securities will not be able to exercise directly any
remedy available to the Holders of the Debentures.

     (f) All moneys deposited in the Property Account, and all Debentures held
by the Property Trustee for the benefit of the Holders of the Securities will
not be subject to any right, charge, security interest, lien or claim of any
kind in favor of, or for the benefit of the Property Trustee or its agents or
their creditors.

     (g) The Property Trustee shall, within 90 days after the occurrence of a
default with respect to the Securities known to the Property Trustee, transmit
by mail, first class postage prepaid, to the holders of the Securities, as
their names and addresses appear upon the register, notice of all such defaults
with respect to the Securities, unless such defaults shall have been cured
before the giving of such notice (the term "defaults" for the purposes of this
Section 3.10(g) being hereby defined to be an Indenture Event of Default, not
including any periods of grace provided for in the Indenture and irrespective
of the giving of any notice provided therein); provided, that, except in the
case of default in the payment of the principal of (or premium, if any) or
interest on any of the Debentures, the Property Trustee shall be protected in
withholding such notice if and so long as the board of directors, the executive
committee or a trust committee of directors and/or Responsible Officers, of the
Property Trustee in good faith determines that the withholding of such notice
is in the interests of the Holders of the Securities. The Property Trustee
shall not be deemed to have knowledge of any default, except (i) a default in
the payment of principal, premium or interest on the Debentures or (ii) any
default as to which the Property Trustee shall have received written notice or
a Responsible Officer charged with the administration of this Declaration shall
have obtained written notice.

     (h) The Property Trustee shall continue to serve as a Trustee until
either:

          (i) the Trust has been completely liquidated and the proceeds thereof
     distributed to the Holders of Securities pursuant to the terms of the
     Securities; or

          (ii) a Successor Property Trustee has been appointed and accepted
     that appointment in accordance with Article 5.

                                      21
<PAGE>

     (i) The Property Trustee shall act as paying agent in respect of the
Common Securities and the Preferred Securities and, subject to Section 3.08(r),
may authorize one or more Persons (each, a "Paying Agent") to pay
Distributions, redemption payments or liquidation payments on behalf of the
Trust with respect to the Preferred Securities. Any such Paying Agent shall
comply with ss. 317(b) of the Trust Indenture Act. Any Paying Agent may be
removed by the Property Trustee, after consultation with the Regular Trustees,
at any time and a successor Paying Agent or additional Paying Agents may be
appointed at any time by the Property Trustee, subject to Section 3.08(r).

     (j) The Property Trustee shall give prompt written notice to the Holders
of the Securities of any notice received by it from AES of its election to
defer payments of interest on the Debentures by extending the interest payment
period with respect thereto.

     (k) Subject to this Section 3.10, the Property Trustee shall have none of
the powers or the authority of the Regular Trustees set forth in Section 3.08.

     (l) The Property Trustee shall exercise the powers, duties and rights set
forth in this Section 3.10 and Section 3.12 in a manner which is consistent
with the purposes and functions of the Trust set out in Section 3.05, and the
Property Trustee shall not take any action which is inconsistent with the
purposes and functions of the Trust set forth in Section 3.05.

     SECTION 3.11. Delaware Trustee. Notwithstanding any other provision of
this Declaration other than Section 5.01(a)(3), the Delaware Trustee shall not
be entitled to exercise any powers, nor shall the Delaware Trustee have any of
the duties and responsibilities of the Regular Trustees and the Property
Trustee (except as required under the Business Trust Act) described in this
Declaration. Except as set forth in Section 5.01(a)(3), the Delaware Trustee
shall be a Trustee for the sole and limited purpose of fulfilling the
requirements of ss. 3807 of the Business Trust Act. No implied covenants or
obligations shall be read into this Declaration against the Delaware Trustee.

     SECTION 3.12. Certain Rights and Duties of the Property Trustee. (a) The
Property Trustee, before the occurrence of an Event of Default and after the
curing of all Events of Default that may have occurred, shall undertake to
perform only such duties as are specifically set forth in this Declaration, and
no implied covenants shall be read into this Declaration against the Property
Trustee. In case an Event of Default has occurred (that has not been cured or
waived pursuant to Section 2.06), the Property Trustee shall exercise such of
the rights and powers vested in it by this Declaration, and use the same degree
of care and skill in their

                                      22
<PAGE>

exercise, as a prudent person would exercise or use under the circumstances in
the conduct of his or her own affairs.

     (b) No provision of this Declaration shall be construed to relieve the
Property Trustee from liability for its own negligent action, its own negligent
failure to act or its own willful misconduct, except that:

          (i) prior to the occurrence of an Event of Default and after the
     curing or waiving of all such Events of Default that may have occurred:

               (A) the duties and obligations of the Property Trustee shall be
          determined solely by the express provisions of this Declaration, and
          the Property Trustee shall not be liable except for the performance
          of such duties and obligations as are specifically set forth in this
          Declaration, and no implied covenants or obligations shall be read
          into this Declaration against the Property Trustee; and

               (B) in the absence of bad faith on the part of the Property
          Trustee, the Property Trustee may conclusively rely, as to the truth
          of the statements and the correctness of the opinions expressed
          therein, upon any certificates or opinions furnished to the Property
          Trustee and conforming to the requirements of this Declaration; but
          in the case of any such certificates or opinions that by any
          provision hereof are specifically required to be furnished to the
          Property Trustee, the Property Trustee shall be under a duty to
          examine the same to determine whether or not they conform to the
          requirements of this Declaration;

          (ii) the Property Trustee shall not be liable for any error of
     judgment made in good faith by a Responsible Officer of the Property
     Trustee, unless it shall be proved that the Property Trustee was negligent
     in ascertaining the pertinent facts;

          (iii) the Property Trustee shall not be liable with respect to any
     action taken or omitted to be taken by it in good faith in accordance with
     the direction of the Holders as provided herein relating to the time,
     method and place of conducting any proceeding for any remedy available to
     the Property Trustee hereunder or under the Indenture, or exercising any
     trust or power conferred upon the Property Trustee under this Declaration;
     and

          (iv) no provision of this Declaration shall require the Property
     Trustee to expend or risk its own funds or otherwise incur personal

                                      23
<PAGE>

     financial liability in the performance of any of its duties or in the
     exercise of any of its rights or powers, if it shall have reasonable
     ground for believing that the repayment of such funds or liability is not
     reasonably assured to it under the terms of this Declaration or adequate
     indemnity against such risk or liability is not reasonably assured to it.

          (c) Subject to the provisions of Section 3.12(a) and (b):

          (i) whenever in the administration of this Declaration, the Property
     Trustee shall deem it desirable that a matter be proved or established
     prior to taking, suffering or omitting any action hereunder, the Property
     Trustee (unless other evidence is herein specifically prescribed) may, in
     the absence of bad faith on its part and, if the Trust is excluded from
     the definition of Investment Company solely by means of Rule 3a-7, subject
     to the requirements of Rule 3a-7, request and rely upon a certificate,
     which shall comply with the provisions of ss. 314(e) of the Trust
     Indenture Act, signed by any two of the Regular Trustees or by an
     authorized officer of the Sponsor, as the case may be;

          (ii) The Property Trustee (A) may consult with counsel (which may be
     counsel to the Sponsor or any of its Affiliates and may include any of its
     employees) selected by it in good faith and with due care and the written
     advice or opinion of such counsel with respect to legal matters shall be
     full and complete authorization and protection in respect of any action
     taken, suffered or omitted by it hereunder in good faith and in reliance
     thereon and in accordance with such advice and opinion and (B) shall have
     the right at any time to seek instructions concerning the administration
     of this Declaration from any court of competent jurisdiction;

          (iii) The Property Trustee may execute any of the trusts or powers
     hereunder or perform any duties hereunder either directly or by or through
     agents or attorneys and the Property Trustee shall not be responsible for
     any misconduct or negligence on the part of any agent or attorney
     appointed by it in good faith and with due care;

          (iv) The Property Trustee shall be under no obligation to exercise
     any of the rights or powers vested in it by this Declaration at the
     request or direction of any Holders, unless such Holders shall have
     offered to the Property Trustee reasonable security and indemnity against
     the costs, expenses (including attorneys' fees and expenses) and
     liabilities that might be incurred by it in complying with such request or
     direction; provided that nothing contained in this clause (iv) shall
     relieve the Property Trustee

                                      24
<PAGE>

     of the obligation, upon the occurrence of an Event of Default (which has
     not been cured or waived) to exercise such of the rights and powers vested
     in it by this Declaration, and to use the same degree of care and skill in
     this exercise, as a prudent person would exercise or use under the
     circumstances in the conduct of his or her own affairs; and

          (v) Any action taken by the Property Trustee or its agents hereunder
     shall bind the Holders of the Securities and the signature of the Property
     Trustee or its agents alone shall be sufficient and effective to perform
     any such action; and no third party shall be required to inquire as to the
     authority of the Property Trustee to so act, or as to its compliance with
     any of the terms and provisions of this Declaration, both of which shall
     be conclusively evidenced by the Property Trustee's or its agent's taking
     such action.

     SECTION 3.13. Filing of Amendments to Certificate of Trust. The
Certificate of Trust as filed with the Secretary of State of the State of
Delaware on May 10, 2000 is attached hereto as Exhibit A. On or after the date
of execution of this Declaration, the Trustees shall cause the filing with the
Secretary of State of the State of Delaware of such amendments to the
Certificate of Trust as the Trustees shall deem necessary or desirable.

     SECTION 3.14. Execution of Documents by Regular Trustees. Unless otherwise
determined by the Regular Trustees and except as otherwise required by the
Business Trust Act with respect to the Certificate of Trust or otherwise, a
majority of, or if there are only two, both of, the Regular Trustees are
authorized to execute and deliver on behalf of the Trust any documents which
the Regular Trustees have the power and authority to execute or deliver
pursuant to this Declaration.

     SECTION 3.15. Trustees Not Responsible for Recitals or Issuance of
Securities. The recitals contained in this Declaration and the Securities shall
be taken as the statements of the Sponsor and the Trustees do not assume any
responsibility for their correctness. The Trustees make no representations as
to the value or condition of the property of the Trust or any part thereof. The
Trustees make no representations as to the validity or sufficiency of this
Declaration or the Securities.

     SECTION 3.16. Duration of Trust. The Trust, absent termination pursuant to
the provisions of Article 8 hereof, shall have existence until November 1,
2018.

                                      25
<PAGE>

                                   ARTICLE 4
                                    SPONSOR

     SECTION 4.01. Purchase of Common Securities by Sponsor. On the Closing
Date the Sponsor will purchase all of the Common Securities issued by the Trust
at the same time as the Preferred Securities to be issued on such date are
issued, such purchase to be in an amount equal to at least 3% of the total
capital of the Trust (including for this purpose the maximum amount of
Preferred Securities, if any, which may be issued on the Option Closing Date
pursuant to the exercise of the overallotment option set forth in the Purchase
Agreement).

     SECTION 4.02. Expenses. (a) The Sponsor, in its capacity as Sponsor and
not as a Holder, shall be responsible for and shall pay for all debts and
obligations (other than with respect to the Securities) and all costs and
expenses of the Trust (including, but not limited to, costs and expenses
relating to the organization of the Trust, the issuance of the Preferred
Securities to the Initial Purchasers thereof, the fees and expenses (including
reasonable counsel fees and expenses) of the Trustees (including any amounts
payable under Article 10), the costs and expenses relating to the operation of
the Trust, including without limitation, costs and expenses of accountants,
attorneys, statistical or bookkeeping services, expenses for printing and
engraving and computing or accounting equipment, paying agent(s), registrar(s),
transfer agent(s), duplicating, travel and telephone and other
telecommunications expenses and costs and expenses incurred in connection with
the disposition of Trust assets).

     (b) The Sponsor, in its capacity as Sponsor and not as a Holder, will pay
any and all taxes (other than United States withholding taxes attributable to
the Trust or its assets) and all liabilities, costs and expenses with respect
to such taxes of the Trust.

     (c) The Sponsor's obligations under this Section 4.02 shall be for the
benefit of, and shall be enforceable by, any Person to whom any such debts,
obligations, costs, expenses and taxes are owed (a "Creditor") whether or not
such Creditor has received notice hereof. Any such Creditor may enforce the
Sponsor's obligations under this Section 4.02 directly against the Sponsor and
the Sponsor irrevocably waives any right or remedy to require that any such
Creditor take any action against the Trust or any other Person before
proceeding against the Sponsor. The Sponsor agrees to execute such additional
agreements as may be necessary or desirable in order to give full effect to the
provisions of this Section 4.02.

                                      26
<PAGE>

     SECTION 4.03. Registration Rights Agreement. The Sponsor may execute and
deliver the Registration Rights Agreement on behalf of the Trust.

                                   ARTICLE 5
                                    TRUSTEES

     SECTION 5.01. Number of Trustees; Qualifications. (a) The number of
Trustees initially shall be five (5). At any time (i) before the issuance of
the Securities, the Sponsor may, by written instrument, increase or decrease
the number of, and appoint, remove and replace the, Trustees, and (ii) after
the issuance of the Securities the number of Trustees may be increased or
decreased solely by, and Trustees may be appointed, removed or replaced solely
by, vote of Holders of Common Securities representing a Majority in liquidation
amount of the Common Securities voting as a class; provided that in any case:

          (i) the number of Trustees shall be at least five (5) unless the
     Trustee that acts as the Property Trustee also acts as the Delaware
     Trustee, in which cases the number of Trustees shall be at least four (4);

          (ii) at least a majority of the Trustees shall at all times be
     officers, directors or employees of AES;

          (iii) if required by the Business Trust Act, one Trustee (the
     "Delaware Trustee") shall be either a natural person who is a resident of
     the State of Delaware or, if not a natural person, an entity which has its
     principal place of business in the State of Delaware and otherwise is
     permitted to act as a Trustee hereunder under the laws of the State of
     Delaware, except that if the Property Trustee has its principal place of
     business in the State of Delaware and otherwise is permitted to act as a
     Trustee hereunder under the laws of the State of Delaware, then the
     Property Trustee shall also be the Delaware Trustee and Section 3.11 shall
     have no application; and

          (iv) there shall at all times be a Property Trustee hereunder which
     shall satisfy the requirements of Section 5.01(c).

Each Trustee shall be either a natural person at least 21 years of age or a
legal entity which shall act through one or more duly appointed
representatives.

     (b) The initial Regular Trustees shall be:

         William R. Luraschi
         Willard C. Hoagland, III

                                      27
<PAGE>

         John Ruggirello
         c/o  The AES Corporation
         1001 North 19th Street
         Arlington, Virginia  22209

     (c) There shall at all times be one Trustee which shall act as Property
Trustee. In order to act as Property Trustee hereunder, such Trustee shall:

          (i) not be an Affiliate of the Sponsor;

          (ii) be a corporation or national banking association organized and
     doing business under the laws of the United States of America or any State
     or Territory thereof or of the District of Columbia, or a corporation,
     national banking association or Person permitted by the Commission to act
     as an institutional trustee under the Trust Indenture Act, authorized
     under such laws to exercise corporate trust powers, having a combined
     capital and surplus of at least $50,000,000, and subject to supervision or
     examination by Federal, State, Territorial or District of Columbia
     authority. If such corporation or national banking association publishes
     reports of condition at least annually, pursuant to law or to the
     requirements of the supervising or examining authority referred to above,
     then for the purposes of this Section 5.01(c)(ii), the combined capital
     and surplus of such corporation shall be deemed to be its combined capital
     and surplus as set forth in its most recent report of condition so
     published; and

          (iii) if the Trust is excluded from the definition of an Investment
     Company solely by reason of Rule 3a-7 and to the extent Rule 3a-7 requires
     a trustee having certain qualifications to hold title to the "eligible
     assets" (as defined in Rule 3a-7) of the Trust, the Property Trustee shall
     possess those qualifications.

     If at any time the Property Trustee shall cease to satisfy the
requirements of clauses (i)-(iii) above, the Property Trustee shall immediately
resign in the manner and with the effect set out in Section 5.02(d). If the
Property Trustee has or shall acquire any "conflicting interest" within the
meaning of ss. 310(b) of the Trust Indenture Act, the Property Trustee and the
Holders of the Common Securities (as if such Holders were the obligor referred
to in ss. 310(b) of the Trust Indenture Act) shall in all respects comply with
the provisions of ss. 310(b) of the Trust Indenture Act. The Preferred
Securities Guarantee shall be deemed to be specifically described in this
Declaration for the purposes of clause (i) of the first proviso contained in
ss. 310(b) of the Trust Indenture Act.

                                      28
<PAGE>

     The initial Trustee which shall serve as the Property Trustee is Bank One,
National Association, a national banking association, whose address is as set
forth in Section 14.01(b).

     (d) The initial Trustee which shall serve as the Delaware Trustee is Bank
One Delaware, Inc. (formerly known as First Chicago Delaware Inc.), a Delaware
corporation, whose address is as set forth in Section 14.01(c).

     (e) Any action taken by Holders of Common Securities pursuant to this
Article 5 shall be taken at a meeting of Holders of Common Securities convened
for such purpose or by written consent as provided in Section 12.02.

     (f) No amendment may be made to this Section 5.01 which would change any
rights with respect to the number, existence or appointment and removal of
Trustees, except with the consent of each Holder of Common Securities.

     SECTION 5.02. Appointment, Removal and Resignation of Trustees. (a)
Subject to Section 5.02(b), Trustees may be appointed or removed without cause
at any time:

          (i) until the issuance of the Securities, by written instrument
     executed by the Sponsor; and

          (ii) after the issuance of the Securities by vote of the Holders of a
     Majority in liquidation amount of the Common Securities voting as a class.

     (b) (i) The Trustee that acts as Property Trustee shall not be removed in
accordance with Section 5.02(a) until a Successor Property Trustee possessing
the qualifications to act as Property Trustee under Section 5.01(c) has been
appointed and has accepted such appointment by written instrument executed by
such Successor Property Trustee and delivered to the Regular Trustees, the
Sponsor and the Property Trustee being removed; and

          (ii) the Trustee that acts as Delaware Trustee shall not be removed
     in accordance with Section 5.02(a) until a successor Trustee possessing
     the qualifications to act as Delaware Trustee under Section 5.1(a)(3) (a
     "Successor Delaware Trustee") has been appointed and has accepted such
     appointment by written instrument executed by such Successor Delaware
     Trustee and delivered to the Regular Trustees, the Sponsor and the
     Delaware Trustee being removed.

                                      29
<PAGE>

     (c) A Trustee appointed to office shall hold office until his successor
shall have been appointed or until his death, removal or resignation.

     (d) Any Trustee may resign from office (without need for prior or
subsequent accounting) by an instrument (a "Resignation Request") in writing
signed by the Trustee and delivered to the Sponsor and the Trust, which
resignation shall take effect upon such delivery or upon such later date as is
specified therein; provided, however, that:

          (i) no such resignation of the Trustee that acts as the Property
     Trustee shall be effective until:

               (A) a Successor Property Trustee possessing the qualifications
          to act as Property Trustee under Section 5.01(c) has been appointed
          and has accepted such appointment by instrument executed by such
          Successor Property Trustee and delivered to the Trust, the Sponsor
          and the resigning Property Trustee; or

               (B) if the Trust is excluded from the definition of an
          Investment Company solely by reason of Rule 3a-7, until the assets of
          the Trust have been completely liquidated and the proceeds thereof
          distributed to the Holders of the Securities; and

          (ii) no such resignation of the Trustee that acts as the Delaware
     Trustee shall be effective until a Successor Delaware Trustee has been
     appointed and has accepted such appointment by instrument executed by such
     Successor Delaware Trustee and delivered to the Trust, the Sponsor and the
     resigning Delaware Trustee.

     (e) If no Successor Property Trustee or Successor Delaware Trustee shall
have been appointed and accepted appointment as provided in this Section 5.02
within 60 days after delivery to the Sponsor and the Trust of a Resignation
Request, the resigning Property Trustee or Delaware Trustee may petition any
court of competent jurisdiction for appointment of a Successor Property Trustee
or Successor Delaware Trustee. Such court may thereupon after such notice, if
any, as it may deem proper and prescribe, appoint a Successor Property Trustee
or Successor Delaware Trustee, as the case may be.

                                      30
<PAGE>

     SECTION 5.03. Vacancies among Trustees. If a Trustee ceases to hold office
for any reason and the number of Trustees is not reduced pursuant to Section
5.01 or if the number of Trustees is increased pursuant to Section 5.01, a
vacancy shall occur. A resolution certifying the existence of such vacancy by a
majority of the Regular Trustees shall be conclusive evidence of the existence
of such vacancy. The vacancy shall be filled with a Trustee appointed in
accordance with the requirements of this Article 5.

     SECTION 5.04. Effect of Vacancies. The death, resignation, retirement,
removal, bankruptcy, dissolution, liquidation, incompetence or incapacity to
perform the duties of a Trustee, or any one of them, shall not operate to
annul, dissolve or terminate the Trust. Whenever a vacancy in the number of
Regular Trustees shall occur until such vacancy is filled as provided in this
Article 5, the Regular Trustees in office, regardless of their number, shall
have all the powers granted to the Regular Trustees and shall discharge all the
duties imposed upon the Regular Trustees by this Declaration.

     SECTION 5.05. Meetings. Meetings of the Regular Trustees shall be held
from time to time upon the call of any Trustee. Regular meetings of the Regular
Trustees may be held at a time and place fixed by resolution of the Regular
Trustees. Notice of any in-person meeting of the Regular Trustees shall be hand
delivered or otherwise delivered in writing (including by facsimile, with a
hard copy by overnight courier) not less than 48 hours before such meeting.
Notice of any telephonic meeting of the Regular Trustees or any committee
thereof shall be hand delivered or otherwise delivered in writing (including by
facsimile, with a hard copy by overnight courier) not less than 24 hours before
such meeting. Notices shall contain a brief statement of the time, place and
anticipated purposes of the meeting. The presence (whether in person or by
telephone) of a Regular Trustee at a meeting shall constitute a waiver of
notice of such meeting except where a Regular Trustee attends a meeting for the
express purpose of objecting to the transaction of any activity on the ground
that the meeting has not been lawfully called or convened. Unless provided
otherwise in this Declaration, any action of the Regular Trustees may be taken
at a meeting by vote of a majority of the Regular Trustees present (whether in
person or by telephone) and eligible to vote with respect to such matter;
provided that a Quorum is present, or without a meeting by the unanimous
written consent of the Regular Trustees.

     SECTION 5.06. Delegation of Power. (a) Any Regular Trustee may, by power
of attorney consistent with applicable law, delegate to any other natural
person over the age of 21 his or her power for the purpose of executing any
registration statement or amendment thereto or other document or schedule filed
with the Commission or making any other governmental filing.

                                      31
<PAGE>

     (b) The Regular Trustees shall have power to delegate from time to time to
such of their number or to officers of the Trust the doing of such things and
the execution of such instruments either in the name of the Trust or the names
of the Regular Trustees or otherwise as the Regular Trustees may deem
expedient, to the extent such delegation is not prohibited by applicable law or
contrary to the provisions of the Trust, as set forth herein.

                                   ARTICLE 6
                                 DISTRIBUTIONS

     SECTION 6.01. Distributions. Holders shall receive periodic distributions,
redemption payments and liquidation distributions in accordance with the
applicable terms of the relevant Holder's Securities ("Distributions").
Distributions shall be made to the Holders of Preferred Securities and Common
Securities in accordance with the terms of the Securities as set forth in
Exhibits B and C hereto. If and to the extent that AES makes a payment of
interest (including Compounded Interest (as defined in the Indenture)), premium
and principal on the Debentures held by the Property Trustee (the amount of any
such payment being a "Payment Amount"), the Property Trustee shall and is
directed to promptly make a Distribution of the Payment Amount to Holders in
accordance with the terms of the Securities as set forth in Exhibits B and C
hereto.

                                   ARTICLE 7
                             ISSUANCE OF SECURITIES

     SECTION 7.01. General Provisions Regarding Securities. (a) The Regular
Trustees shall issue on behalf of the Trust securities representing undivided
beneficial interests in the assets of the Trust in accordance with Section
7.01(b) and for the consideration specified in Section 3.03.

     (b) The Regular Trustees shall issue on behalf of the Trust one class of
preferred securities representing undivided beneficial interests in the assets
of the Trust having such terms as are set forth in Exhibit B (the "Preferred
Securities") which terms are incorporated by reference in, and made a part of,
this Declaration as if specifically set forth herein, and one class of common
securities representing undivided beneficial interests in the assets of the
Trust having such terms as are set forth in Exhibit C (the "Common Securities")
which terms are incorporated by reference in, and made a part of, this
Declaration as if specifically set forth

                                      32
<PAGE>

herein. The Trust shall have no securities or other interests in the assets of
the Trust other than the Preferred Securities and the Common Securities.

     (c) The Certificates shall be signed on behalf of the Trust by the Regular
Trustees (or if there are more than two Regular Trustees by any two of the
Regular Trustees). Such signatures may be the manual or facsimile signatures of
the present or any future Regular Trustee. Typographical and other minor errors
or defects in any such reproduction of any such signature shall not affect the
validity of any Certificate. In case any Regular Trustee of the Trust who shall
have signed any of the Certificates shall cease to be such Regular Trustee
before the Certificate so signed shall be delivered by the Trust, such
Certificate nevertheless may be delivered as though the person who signed such
Certificate had not ceased to be such Regular Trustee; and any Certificate may
be signed on behalf of the Trust by such persons as, at the actual date of the
execution of such Certificate, shall be the Regular Trustees of the Trust,
although at the date of the execution and delivery of the Declaration any such
person was not such a Regular Trustee. Certificates shall be printed,
lithographed or engraved or may be produced in any other manner as is
reasonably acceptable to the Regular Trustees, as evidenced by their execution
thereof, and may have such letters, numbers or other marks of identification or
designation and such legends or endorsements as the Regular Trustees may deem
appropriate, or as may be required to comply with any law or with any rule or
regulation made pursuant thereto or with any rule or regulation of any stock
exchange on which Securities may be listed, or to conform to usage. Pending the
preparation of definitive Certificates, the Regular Trustees on behalf of the
Trust may execute temporary Certificates (printed, lithographed or
typewritten), in substantially the form of the definitive Certificates in lieu
of which they are issued, but with such omissions, insertions and variations as
may be appropriate for temporary Certificates, all as may be determined by the
Regular Trustees. Each temporary Certificate shall be executed by the Regular
Trustees on behalf of the Trust upon the same conditions and in substantially
the same manner, and with like effect, as definitive Certificates. Without
unnecessary delay, the Regular Trustees on behalf of the Trust will execute and
furnish definitive Certificates and thereupon any or all temporary Certificates
may be surrendered to the transfer agent and registrar in exchange therefor
(without charge to the Holders). Each Certificate whether in temporary or
definitive form shall be countersigned by the manual or facsimile signature of
an authorized signatory of the Person acting as registrar and transfer agent
for the Securities, which shall initially be the Property Trustee.

     (d) The consideration received by the Trust for the issuance of the
Securities shall constitute a contribution to the capital of the Trust and
shall not constitute a loan to the Trust.

                                      33
<PAGE>

     (e) Upon issuance of the Securities as provided in this Declaration, the
Securities so issued shall be deemed to be validly issued, fully paid and non-
assessable.

     (f) Every Person, by virtue of having become a Holder or a Preferred
Security Beneficial Owner in accordance with the terms of this Declaration,
shall be deemed to have expressly assented and agreed to the terms of, and
shall be bound by this Declaration.

     (g) Upon issuance of the Securities as provided in this Declaration, the
Regular Trustees on behalf of the Trust shall return to AES the $10
constituting initial trust assets as set forth in the Original Declaration.

     SECTION 7.02. Conversion Agent. The Trust shall maintain an office or
agency where Preferred Securities may be presented for conversion ("Conversion
Agent"). The Trust may appoint the Conversion Agent and may appoint one or more
additional Conversion Agents in such other locations as it may determine. The
term "Conversion Agent" includes any additional Conversion Agent. The Trust may
change any Conversion Agent without prior notice to any Holders. If the Trust
fails to appoint or maintain another entity as Conversion Agent, the Property
Trustee will act as such. The Trust or any of its Affiliates may act as
Conversion Agent. The Trust shall act as Conversion Agent for the Common
Securities. The Conversion Agent shall be entitled to the rights and
protections extended to the Property Trustee when acting in such capacity.

     The Property Trustee is hereby initially appointed as Conversion Agent for
the Preferred Securities.

                                   ARTICLE 8
                      DISSOLUTION AND TERMINATION OF TRUST

     SECTION 8.01. Dissolution of Trust. The Trust shall dissolve and its
affairs be wound up upon the first to occur of:

     (a) all of the Securities shall have been called for redemption and the
amounts necessary for redemption thereof shall have been paid to the Holders of
Securities in accordance with the terms of the Securities; or

     (b) all of the Debentures shall have been distributed to the Holders of
Securities in exchange for all of the Securities in accordance with the terms
of the Securities; or

                                      34
<PAGE>

     (c) the expiration of the term of the Trust as set forth in Section 3.16;
or

     (d) the distribution of the Common Stock to all Securities Holders upon
conversion of all outstanding Preferred Securities; or

     (e) a decree of judicial dissolution of the Trust by a court of competent
jurisdiction; or

     (f) upon the election of the Sponsor, the distribution of all of the
Debentures to Holders of Securities; provided that the sponsor shall have
delivered notice to the Trust, the Property Trustee and the Delaware Trustee
stating its intent to dissolve the Trust in accordance with the terms of the
Securities, and provided further that such dissolution is conditioned on the
Regular Trustees' receipt of an opinion of an independent tax counsel
experienced in such matters to the effect that the Holders will not recognize
any gain or loss for United States federal income tax purposes as a result of
the dissolution of the Trust and the distribution of the Debentures.

     SECTION 8.02. Termination of Trust. (a) As soon as practicable after the
occurrence of an event referred to in section 8.01 and after satisfaction of
all liabilities of the Trust, the Regular Trustees shall prepare, execute and
file a certificate of cancellation of the Trust with the Secretary of State of
the State of Delaware.

     (b) The provisions of Sections 3.12 and 4.02 and Article 10 shall survive
the termination of the Trust.

                                   ARTICLE 9
                             TRANSFER OF INTERESTS

     SECTION 9.01. Transfer of Securities. (a) Securities may only be
transferred, in whole or in part, in accordance with the terms and conditions
set forth in this Declaration. To the fullest extent permitted by law, any
transfer or purported transfer of any Security not made in accordance with this
Declaration shall be null and void.

     (b) Subject to this Article 9, Preferred Securities shall be freely
transferable.

                                      35
<PAGE>

     (c) Subject to this Article 9, AES and any Related Party may only transfer
Common Securities to AES or a Related Party; provided that any such transfer
shall be subject to the condition that the transferor shall have obtained (1)
either a ruling from the Internal Revenue Service or an unqualified written
opinion addressed to the Trust and delivered to the Trustees of nationally
recognized independent tax counsel experienced in such matters to the effect
that such transfer will not (i) cause the Trust to be treated as issuing a
class of interests in the Trust differing from the class of interests
represented by the Common Securities originally issued to AES, (ii) result in
the Trust acquiring or disposing of, or being deemed to have acquired or
disposed of, an asset, or (iii) result in or cause the Trust to be treated as
anything other than a grantor trust for United States federal income tax
purposes and (2) an unqualified written opinion addressed to the Trust and
delivered to the Trustees of a nationally recognized independent counsel
experienced in such matters that such transfer will not cause the Trust to be
an Investment Company or controlled by an Investment Company.

     (d) Each Security that bears or is required to bear the legend set forth
in this Section 9.01(d) (a "Restricted Security") shall be subject to the
restrictions on transfer provided in the legend set forth in this Section
9.01(d), unless such restrictions on transfer shall be waived by the written
consent of the Regular Trustees, and the Holder of each Restricted Security, by
such securityholder's acceptance thereof, agrees to be bound by such
restrictions on transfer. As used in this Section 9.01(d), the term "transfer"
encompasses any sale, pledge, transfer or other disposition of any Restricted
Security.

     Prior to the Transfer Restriction Termination Date, the 144A Global
Security and any certificate evidencing Common Stock issued upon conversion
thereof shall bear a legend in substantially the following form, unless
otherwise agreed by the Regular Trustees (with written notice thereof to the
Indenture Trustee):

     THIS SECURITY HAS NOT BEEN REGISTERED UNDER THE U.S. SECURITIES ACT OF
     1933, AS AMENDED (THE "SECURITIES ACT"), AND, ACCORDINGLY, MAY NOT BE
     OFFERED OR SOLD EXCEPT AS SET FORTH IN THE FOLLOWING SENTENCE. BY ITS
     ACQUISITION HEREOF, THE HOLDER (1) REPRESENTS THAT IT IS A "QUALIFIED
     INSTITUTIONAL BUYER" (AS DEFINED IN RULE 144A UNDER THE SECURITIES ACT),
     (2) AGREES THAT IT WILL NOT PRIOR TO THE EXPIRATION OF THE HOLDING PERIOD

                                      36
<PAGE>

     APPLICABLE TO SALES OF THE SECURITY EVIDENCED HEREBY UNDER RULE 144(k)
     UNDER THE SECURITIES ACT (OR ANY SUCCESSOR PROVISION), RESELL OR OTHERWISE
     TRANSFER THIS SECURITY EXCEPT (A) TO AES OR ANY SUBSIDIARY THEREOF, (B) TO
     A QUALIFIED INSTITUTIONAL BUYER IN COMPLIANCE WITH RULE 144A UNDER THE
     SECURITIES ACT, (C) PURSUANT TO THE EXEMPTION FROM REGISTRATION PROVIDED
     BY RULE 144 UNDER THE SECURITIES ACT (IF AVAILABLE) OR (D) PURSUANT TO AN
     EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT AND (3) AGREES
     THAT IT WILL DELIVER TO EACH PERSON TO WHOM THIS SECURITY IS TRANSFERRED A
     NOTICE SUBSTANTIALLY TO THE EFFECT OF THIS LEGEND. IN CONNECTION WITH ANY
     TRANSFER OF THIS SECURITY PRIOR TO THE EXPIRATION DATE OF THE HOLDING
     PERIOD APPLICABLE TO SALES OF THE SECURITY EVIDENCED HEREBY UNDER RULE
     144(k) UNDER THE SECURITIES ACT (OR ANY SUCCESSOR PROVISION), THE
     TRANSFEROR MUST CHECK THE APPROPRIATE BOX SET FORTH ON THE REVERSE HEREOF
     RELATING TO THE MANNER OF SUCH TRANSFER AND SUBMIT THIS CERTIFICATE TO THE
     PROPERTY TRUSTEE.

     Following the Transfer Restriction Termination Date or the sale of a
Security or Common Stock for which the resale of such Security has been
registered pursuant to an effective registration statement or Rule 144, any
Security or security issued in exchange or substitution therefor (other than
(i) Securities acquired by the Sponsor or any Affiliate and (ii) Common Stock
issued upon the conversion or exchange of any Security described in clause (i)
above) may upon surrender of such Security for exchange to any Regular Trustee
on behalf of the Trust in accordance with the provisions of this Section
9.01(d), be exchanged for a new Security or Securities, of like tenor and
aggregate liquidation amount, which shall not bear the restrictive legend
required by this Section 9.01(d).

                                      37
<PAGE>

     SECTION 9.02. Transfer of Certificates. The Regular Trustees shall provide
for the registration of Certificates and of transfers of Certificates, which
will be effected without charge but only upon payment (with such indemnity as
the Regular Trustees may require) in respect of any tax or other government
charges which may be imposed in relation to it. Upon surrender for registration
of transfer of any Certificate, the Regular Trustees shall cause one or more
new Certificates to be issued in the name of the designated transferee or
transferees. Every Certificate surrendered for registration of transfer shall
be accompanied by a written instrument of transfer in form satisfactory to the
Regular Trustees duly executed by the Holder or such Holder's attorney duly
authorized in writing. Each Certificate surrendered for registration of
transfer shall be canceled by the Regular Trustees. A transferee of a
Certificate shall be entitled to the rights and subject to the obligations of a
Holder hereunder upon the receipt by such transferee of a Certificate. By
acceptance of a Certificate, each transferee shall be deemed to have agreed to
be bound by this Declaration.

     SECTION 9.03. Deemed Security Holders. The Trustees may treat the Person
in whose name any Certificate shall be registered on the books and records of
the Trust as the sole holder of such Certificate and of the Securities
represented by such Certificate for purposes of receiving Distributions and for
all other purposes whatsoever and, accordingly, shall not be bound to recognize
any equitable or other claim to or interest in such Certificate or in the
Securities represented by such Certificate on the part of any Person, whether
or not the Trustees shall have actual or other notice thereof.

     SECTION 9.04. Book Entry Interests. (a) Unless otherwise specified in the
terms of the Preferred Securities, the Preferred Securities Certificates, on
original issuance (including Preferred Securities, if any, issued on the Option
Closing Date pursuant to the exercise of the overallotment option set forth in
the Purchase Agreement), will be issued in the form of one or more, fully
registered, global Preferred Security Certificates (each a "Global
Certificate"), to be delivered to DTC, the initial Clearing Agency, by, or on
behalf of, the Trust. Such Global Certificates shall initially be registered on
the books and records of the Trust in the name of Cede & Co., the nominee of
DTC, and no Preferred Security Beneficial Owner will receive a definitive
Preferred Security Certificate representing such Preferred Security Beneficial
Owner's interests in such Global Certificates, except as provided in Section
9.07. Unless and until definitive, fully registered Preferred Security
Certificates (the "Definitive Preferred Security Certificates") have been
issued to the Preferred Security Beneficial Owners pursuant to Section 9.07.

                                      38
<PAGE>

     (b) Preferred Securities that upon initial issuance are beneficially owned
by QIBs may, at the option of the Trust, be represented by one or more Global
Certificates (a "144A Global Security").

     Except as provided below, beneficial owners of a Preferred Security in
global form shall not be entitled to have certificates registered in their
names, will not receive or be entitled to receive physical delivery of
certificates in definitive form and will not be considered Holders of such
Preferred Security in global form.

     Any transfer of a beneficial interest in a Preferred Security in global
form which cannot be effected through book-entry settlement must be effected by
the delivery to the transferee (or its nominee) of a Definitive Preferred
Security Certificate or Definitive Preferred Security Certificates registered
in the name of the transferee (or its nominee) on the books maintained by the
Property Trustee. With respect to any such transfer, the Property Trustee will
cause, in accordance with the standing instructions and procedures of the
Clearing Agency, the aggregate principal amount at maturity of the Preferred
Security in global form to be reduced and, following such reduction, the
Sponsor will execute and the Property Trustee will authenticate and make
available for delivery to the transferee (or such transferee's nominee, as the
case may be), a Preferred Security or Securities in the appropriate aggregate
principal amount at maturity in the name of such transferee (or its nominee)
and bearing such restrictive legends as may be required by this Declaration of
Trust.

     (c) the provisions of this Section 9.04 shall be in full force and effect;

     (d) (i) the Trust and the Trustees shall be entitled to deal with the
Clearing Agency for all purposes of this Declaration (including the payment of
Distributions on the Global Certificates and receiving approvals, votes or
consents hereunder) as the Holder of the Preferred Securities and the sole
holder of the Global Certificates and, except as set forth herein or in Rule
3a-7 with respect to the Property Trustee, shall have no obligation to the
Preferred Security Beneficial Owners; provided, that solely for the purposes of
determining whether the Holders of the requisite amount of Preferred Securities
have voted on any matter provided for in this Declaration, so long as
definitive Preferred Security Certificates have not been issued (pursuant to
Section 9.07 hereof), the Trustees may conclusively rely on, and shall be
protected in relying on, any written instrument (including a proxy) delivered
to the Trustees by the Clearing Agency setting forth the Preferred Security
Beneficial Owners' votes or assigning the right to vote on any matter to any
other Persons either in whole or in part;

                                      39
<PAGE>

     (e) to the extent that the provisions of this Section 9.04 conflict with
any other provisions of this Declaration, the provisions of this Section 9.04
shall control; and

     (f) the rights of the Preferred Security Beneficial Owners shall be
exercised only through the Clearing Agency and shall be limited to those
established by law and agreements between such Preferred Security Beneficial
Owners and the Clearing Agency and/or the Clearing Agency Participants. DTC
will make book entry transfers among the Clearing Agency Participants and
receive and transmit payments of Distributions on the Global Certificates to
such Clearing Agency Participants.

     SECTION 9.05. Notices to Holders of Certificates. Whenever a notice or
other communication to the Holders is required to be given under this
Declaration, unless and until Definitive Preferred Security Certificates shall
have been issued pursuant to Section 9.07, the relevant Trustees shall give all
such notices and communications, specified herein to be given to Preferred
Securities Holders, to the Clearing Agency and, with respect to any Preferred
Security Certificate registered in the name of a Clearing Agency or the nominee
of a Clearing Agency, the Trustees shall, except as set forth herein or in Rule
3a-7 with respect to the Property Trustee, have no notice obligations to the
Preferred Security Beneficial Owners.

     SECTION 9.06. Appointment of Successor Clearing Agency. If any Clearing
Agency elects to discontinue its services as securities depository with respect
to the Preferred Securities, the Regular Trustees may, in their sole
discretion, appoint a successor Clearing Agency with respect to the Preferred
Securities.

     SECTION 9.07. Definitive Preferred Securities Certificates. (a) If (i) a
Clearing Agency elects to discontinue its services as securities depository
with respect to the Preferred Securities and a successor Clearing Agency is not
appointed within 90 days after such discontinuance pursuant to Section 9.06 or
(ii) the Regular Trustees elect after consultation with the Sponsor to
terminate the book entry system through the Clearing Agency with respect to the
Preferred Securities, then (x) Definitive Preferred Security Certificates shall
be prepared by the Regular Trustees on behalf of the Trust with respect to such
Preferred Securities and (y) upon surrender of the Global Certificates by the
Clearing Agency, accompanied by registration instructions, the Regular Trustees
shall cause definitive Preferred Security Certificates to be delivered to
Preferred Security Beneficial Owners in accordance with the instructions of the
Clearing Agency. Neither the Trustees nor the Trust shall be liable for any
delay in

                                      40
<PAGE>

delivery of such instructions and each of them may conclusively rely on and
shall be protected in relying on, such instructions.

     SECTION 9.08. Mutilated, Destroyed, Lost or Stolen Certificates. If (a)
any mutilated Certificates should be surrendered to the Regular Trustees, or if
the Regular Trustees shall receive evidence to their satisfaction of the
destruction, loss or theft of any Certificate; and (b) there shall be delivered
to the Regular Trustees such security or indemnity as may be required by them
to keep each of them harmless, then in the absence of notice that such
Certificate shall have been acquired by a bona fide purchaser, any two Regular
Trustees on behalf of the Trust shall execute and deliver, and the Property
Trustee shall authenticate, in exchange for or in lieu of any such mutilated,
destroyed, lost or stolen Certificate, a new Certificate of like denomination.
In connection with the issuance of any new Certificate under this Section 9.08,
the Regular Trustees may require the payment of a sum sufficient to cover any
tax or other governmental charge that may be imposed in connection therewith.
Any duplicate Certificate issued pursuant to this section shall constitute
conclusive evidence of an ownership interest in the relevant Securities, as if
originally issued, whether or not the lost, stolen or destroyed Certificate
shall be found at any time.

                                   ARTICLE 10
                    LIMITATION OF LIABILITY; INDEMNIFICATION

     SECTION 10.01. Exculpation. (a) No Indemnified Person shall be liable,
responsible or accountable in damages or otherwise to the Trust or any Covered
Person for any loss, damage or claim incurred by reason of any act or omission
performed or omitted by such Indemnified Person in good faith on behalf of the
Trust and in a manner such Indemnified Person reasonably believed to be within
the scope of the authority conferred on such Indemnified Person by this
Declaration or by law, except that an Indemnified Person shall be liable for
any such loss, damage or claim incurred by reason of such Indemnified Person's
gross negligence (but, in the case of the Property Trustee, subject to the
Trust Indenture Act) or willful misconduct with respect to such acts or
omissions.

     (b) An Indemnified Person shall be fully protected in relying in good
faith upon the records of the Trust and upon such information, opinions,
reports or statements presented to the Trust by any Person as to matters the
Indemnified Person reasonably believes are within such other Person's
professional or expert competence and who has been selected with reasonable
care by or on behalf of the Trust, including information, opinions, reports or
statements as to the value and amount of the assets, liabilities, profits,
losses or any other facts pertinent to the

                                      41
<PAGE>

existence and amount of assets from which Distributions to Holders of
Securities might properly be paid.

     (c) Pursuant to ss. 3803(a) of the Business Trust Act, the Holders of
Securities, in their capacities as Holders, shall be entitled to the same
limitation of liability that is extended to stockholders of private
corporations for profit organized under the General Corporation Law of the
State of Delaware.

     SECTION 10.02. Indemnification. (a) To the fullest extent permitted by
applicable law, the Sponsor shall indemnify and hold harmless each Indemnified
Person from and against any loss, damage or claim incurred by such Indemnified
Person by reason of any act or omission performed or omitted by such
Indemnified Person in good faith on behalf of the Trust and in a manner such
Indemnified Person reasonably believed to be within the scope of authority
conferred on such Indemnified Person by this Declaration, except that no
Indemnified Person shall be entitled to be indemnified in respect of any loss,
damage or claim incurred by such Indemnified Person by reason of gross
negligence (but, in the case of the Property Trustee, subject to the Trust
Indenture Act) or willful misconduct with respect to such acts or omissions.

     (b) To the fullest extent permitted by applicable law, expenses (including
legal fees) incurred by an Indemnified Person in defending any claim, demand,
action, suit or proceeding shall, from time to time, be advanced by the Sponsor
prior to the final disposition of such claim, demand, action, suit or
proceeding upon receipt by the Sponsor of an undertaking by or on behalf of the
Indemnified Person to repay such amount if it shall be determined that the
Indemnified Person is not entitled to be indemnified as authorized in Section
10.02(a).

     (c) The provisions of this Section 10.02 shall survive the termination of
this Declaration or the resignation or removal of any Trustee.

     SECTION 10.03. Outside Business. The Sponsor and any Trustee may engage in
or possess an interest in other business ventures of any nature or description,
independently or with others, similar or dissimilar to the business of the
Trust, and the Trust and the Holders of Securities shall have no rights by
virtue of this Declaration in and to such independent ventures or the income or
profits derived therefrom, and the pursuit of any such venture, even if
competitive with the business of the Trust, shall not be deemed wrongful or
improper. Neither the Sponsor nor any Trustee shall be obligated to present any
particular investment or other opportunity to the Trust even if such
opportunity is of a character that, if presented to the Trust, could be taken
by the Trust, and the Sponsor or any Trustee shall have the right to take for
its own account

                                      42
<PAGE>

(individually or as a partner or fiduciary) or to recommend to others any such
particular investment or other opportunity. Any Trustee may engage or be
interested in any financial or other transaction with the Sponsor or any
Affiliate of the Sponsor or may act as depository for, trustee or agent for, or
act on any committee or body of holders of, securities or other obligations of
the Sponsor or its Affiliates.

                                   ARTICLE 11
                                   ACCOUNTING

     SECTION 11.01. Fiscal Year. The fiscal year ("Fiscal Year") of the Trust
shall be the calendar year, or such other year as is required by the Code.

     SECTION 11.02. Certain Accounting Matters. (a) At all times during the
existence of the Trust, the Regular Trustees shall keep, or cause to be kept,
full books of account, records and supporting documents, which shall reflect in
reasonable detail, each transaction of the Trust. The books of account shall be
maintained on the accrual method of accounting, in accordance with generally
accepted accounting principles, consistently applied. The Trust shall use the
accrual method of accounting for United States federal income tax purposes. The
books and records of the Trust, together with a copy of this Declaration and a
certified copy of the Certificate of Trust, or any amendment thereto, shall at
all times be maintained at the principal office of the Trust and shall be open
for inspection for any examination by any Holder or its duly authorized
representative for any purpose reasonably related to its interest in the Trust
during normal business hours.

     (b) The Regular Trustees shall cause to be prepared and mailed to each
Holder of Securities, an annual United States federal income tax information
statement, on such form as is required by the Code, containing such information
with regard to the Securities held by each Holder as is required by the Code
and the Treasury Regulations. Notwithstanding any right under the Code to
deliver any such statement at a later date, the Regular Trustees shall endeavor
to deliver all such statements within 30 days after the end of each Fiscal Year
of the Trust.

     (c) The Regular Trustees shall cause to be prepared and filed with the
appropriate taxing authority, an annual United States federal income tax
return, on such form as is required by the Code, and any other annual income
tax returns required to be filed by the Regular Trustees on behalf of the Trust
with any state or local taxing authority, such returns to be filed as soon as
practicable after the end of each Fiscal Year of the Trust.

                                      43
<PAGE>

     SECTION 11.03. Banking. The Trust shall maintain one or more bank accounts
in the name and for the sole benefit of the Trust; provided, however, that all
payments of funds in respect of the Debentures held by the Property Trustee
shall be made directly to the Property Account and no other funds from the
Trust shall be deposited in the Property Account. The sole signatories for such
accounts shall be designated by the Regular Trustees; provided, however, that
the Property Trustee shall designate the sole signatories for the Property
Account.

     SECTION 11.04. Withholding. The Trust and the Trustees shall comply with
all withholding requirements under United States federal, state and local law.
The Trust shall request, and the Holders shall provide to the Trust, such forms
or certificates as are necessary to establish an exemption from withholding
with respect to each Holder, and any representations and forms as shall
reasonably be requested by the Trust to assist it in determining the extent of,
and in fulfilling, its withholding obligations. The Trust shall file required
forms with applicable jurisdictions and, unless an exemption from withholding
is properly established by a Holder, shall remit amounts withheld with respect
to the Holder to applicable jurisdictions. To the extent that the Trust is
required to withhold and pay over any amounts to any authority with respect to
distributions or allocations to any Holder, the amount withheld shall be deemed
to be a distribution in the amount of the withholding to the Holder. In the
event of any claimed overwithholding, Holders shall be limited to an action
against the applicable jurisdiction. If the amount to be withheld was not
withheld from a Distribution, the Trust may reduce subsequent Distributions by
the amount of such withholding.

                                   ARTICLE 12
                            AMENDMENTS AND MEETINGS

     SECTION 12.01. Amendments. (a) Except as otherwise provided in this
Declaration or by any applicable terms of the Securities, this Declaration may
be amended by, and only by, a written instrument executed by a majority of the
Regular Trustees; provided, however, that (i) no amendment to this Declaration
shall be made unless the Regular Trustees shall have obtained (A) either a
ruling from the Internal Revenue Service or a written unqualified opinion of
nationally recognized independent tax counsel experienced in such matters to
the effect that such amendment will not cause the Trust to be classified for
United States federal income tax purposes as an association taxable as a
corporation or a partnership and to the effect that the Trust will continue to
be treated as a grantor trust for purposes of United States federal income
taxation and (B) a written unqualified opinion of nationally recognized
independent counsel experienced in such matters

                                      44
<PAGE>

to the effect that such amendment will not cause the Trust to be an Investment
Company which is required to be registered under the Investment Company Act,
(ii) at such time after the Trust has issued any Securities which remain
outstanding, any amendment which would adversely affect the rights, privileges
or preferences of any Holder of Securities may be effected only with such
additional requirements as may be set forth in the terms of such Securities,
(iii) Section 4.02, Section 9.01(c) and this Section 12.01 shall not be amended
without the consent of all of the Holders of the Securities, (iv) no amendment
which adversely affects the rights, powers and privileges of the Property
Trustee shall be made without the consent of the Property Trustee, (v) Article
4 shall not be amended without the consent of the Sponsor, and (vi) the rights
of Holders of Common Securities under Article 5 to increase or decrease the
number of, and to appoint, replace or remove, Trustees shall not be amended
without the consent of each Holder of Common Securities.

     (b) Notwithstanding Section 12.01(a)(ii), this Declaration may be amended
without the consent of the Holders of the Securities to (i) cure any ambiguity,
(ii) correct or supplement any provision in this Declaration that may be
defective or inconsistent with any other provision of this Declaration, (iii)
to add to the covenants, restrictions or obligations of the Sponsor, and (iv)
to conform to any changes in Rule 3a-7 or any change in interpretation or
application of Rule 3a-7 by the Commission, which amendment does not adversely
affect the rights, preferences or privileges of the Holders.

     SECTION 12.02. Meetings of the Holders of Securities; Action by Written
Consent. (a) Meetings of the Holders of Preferred Securities and/or Common
Securities may be called at any time by the Regular Trustees (or as provided in
the terms of the Securities) to consider and act on any matter on which Holders
of such class of Securities are entitled to act under the terms of this
Declaration, the terms of the Securities or the rules of any stock exchange on
which the Preferred Securities are listed or admitted for trading. The Regular
Trustees shall call a meeting of Holders of Preferred Securities or Common
Securities, if directed to do so by Holders of at least 10% in liquidation
amount of such class of Securities. Such direction shall be given by delivering
to the Regular Trustees one or more calls in a writing stating that the signing
Holders of Securities wish to call a meeting and indicating the general or
specific purpose for which the meeting is to be called. Any Holders of
Securities calling a meeting shall specify in writing the Certificates held by
the Holders of Securities exercising the right to call a meeting and only those
specified Certificates shall be counted for purposes of determining whether the
required percentage set forth in the second sentence of this paragraph has been
met.

                                      45
<PAGE>

     (b) Except to the extent otherwise provided in the terms of the
Securities, the following provision shall apply to meetings of Holders of
Securities:

          (i) Notice of any such meeting shall be given by mail to all the
     Holders of Securities having a right to vote thereat not less than 7 days
     nor more than 60 days prior to the date of such meeting. Whenever a vote,
     consent or approval of the Holders of Securities is permitted or required
     under this Declaration or the rules of any stock exchange on which the
     Preferred Securities are listed or admitted for trading, such vote,
     consent or approval may be given at a meeting of the Holders of
     Securities. Any action that may be taken at a meeting of the Holders of
     Securities may be taken without a meeting if a consent in writing setting
     forth the action so taken is signed by Holders of Securities owning not
     less than the minimum aggregate liquidation amount of Securities that
     would be necessary to authorize or take such action at a meeting at which
     all Holders of Securities having a right to vote thereon were present and
     voting. Prompt notice of the taking of action without a meeting shall be
     given to the Holders of Securities entitled to vote who have not consented
     in writing. The Regular Trustees may specify that any written ballot
     submitted to the Holders of Securities for the purpose of taking any
     action without a meeting shall be returned to the Trust within the time
     specified by the Regular Trustees.

          (ii) Each Holder of a Security may authorize any Person to act for it
     by proxy on all matters in which a Holder of a Security is entitled to
     participate, including waiving notice of any meeting, or voting or
     participating at a meeting. No proxy shall be valid after the expiration
     of 11 months from the date thereof unless otherwise provided in the proxy.
     Every proxy shall be revocable at the pleasure of the Holder of the
     Security executing it. Except as otherwise provided herein or in the terms
     of the Securities, all matters relating to the giving, voting or validity
     of proxies shall be governed by the General Corporation Law of the State
     of Delaware relating to proxies, and judicial interpretations thereunder,
     as if the Trust were a Delaware corporation and the Holders of the
     Securities were stockholders of a Delaware corporation.

          (iii) Each meeting of the Holders of the Securities shall be
     conducted by the Regular Trustees or by such other Person that the Regular
     Trustees may designate.

          (iv) Unless otherwise provided in the Business Trust Act, this
     Declaration or the rules of any stock exchange on which the Preferred

                                      46
<PAGE>

     Securities are then listed or admitted for trading, the Regular Trustees,
     in their sole discretion, shall establish all other provisions relating to
     meetings of Holders of Securities, including notice of the time, place or
     purpose of any meeting at which any matter is to be voted on by any
     Holders of Securities, waiver of any such notice, action by consent
     without a meeting, the establishment of a record date, quorum
     requirements, voting in person or by proxy or any other matter with
     respect to the exercise of any such right to vote.

                                   ARTICLE 13
            REPRESENTATIONS OF PROPERTY TRUSTEE AND DELAWARE TRUSTEE

     SECTION 13.01. Representations and Warranties of Property Trustee. (a) The
Trustee which acts as initial Property Trustee represents and warrants to the
Trust and to the Sponsor at the date of this Declaration, and each Successor
Property Trustee represents and warrants to the Trust and the Sponsor at the
time of the Successor Property Trustee's acceptance of its appointment as
Property Trustee that:

          (i) The Property Trustee is a national banking association or a
     banking corporation with trust powers, duly organized, validly existing
     and in good standing under the laws of the United States or the laws of
     the state of its incorporation, with trust power and authority to execute
     and deliver, and to carry out and perform its obligations under the terms
     of, this Declaration.

          (ii) The execution, delivery and performance by the Property Trustee
     of this Declaration has been duly authorized by all necessary corporate
     action on the part of the Property Trustee. The Declaration has been duly
     executed and delivered by the Property Trustee, and constitutes a legal,
     valid and binding obligation of the Property Trustee, enforceable against
     it in accordance with its terms, subject to applicable bankruptcy,
     reorganization, moratorium, insolvency, and other similar laws affecting
     creditors' rights generally and to general principles of equity and the
     discretion of the court (regardless of whether the enforcement of such
     remedies is considered in a proceeding in equity or at law).

          (iii) The execution, delivery and performance of this Declaration by
     the Property Trustee does not conflict with or constitute a breach of the
     Charter or By-laws of the Property Trustee.

                                      47
<PAGE>

          (iv) No consent, approval or authorization of, or registration with
     or notice to, any banking authority which supervises or regulates the
     Property Trustee is required for the execution, delivery or performance by
     the Property Trustee, of this Declaration.

          (v) The Property Trustee satisfies the qualifications set forth in
     Section 5.01(c).

     (b) The Trustee which acts as initial Delaware Trustee represents and
warrants to the Trust and the Sponsor at the date of this Declaration, and each
Successor Delaware Trustee represents and warrants to the Trust and the Sponsor
at the time of the Successor Delaware Trustee's acceptance of its appointment
as Delaware Trustee, that it satisfies the qualifications set forth in Section
5.01(a)(3).

                                   ARTICLE 14
                                 MISCELLANEOUS

     SECTION 14.01. Notices. All notices provided for in this Declaration shall
be in writing, duly signed by the party giving such notice, and shall be
delivered, telecopied or mailed by first class mail, as follows:

     (a) if given to the Trust, in care of the Regular Trustees at the Trust's
mailing address set forth below (or such other address as the Regular Trustees
on behalf of the Trust may give notice of to the Holders of the Securities):

         AES Trust VII
         c/o The AES Corporation
         1001 North 19th Street
         Arlington, Virginia  22209
         Attention: General Counsel
         Facsimile No: (703) 528-4510

     (b) if given to the Property Trustee, at the mailing address of the
Property Trustee set forth below (or such other address as the Property Trustee
may give notice of to the Holders of the Securities):

                                      48
<PAGE>

         Bank One, National Association
         1 Bank One Plaza, Suite IL1-0126
         Chicago, IL 60670-0126
         Attention: Corporate Trust Administrator
         Telecopy: (312) 407-1708

     (c) if given to the Delaware Trustee, at the mailing address of the
Delaware Trustee set forth below (or such other address as the Delaware Trustee
may give notice of to the Holders of the Securities):

         Bank One Delaware, Inc.
         3 Christina Center
         201 North Walnut Street
         Wilmington, Delaware 19801
         Telecopy: (312) 407-1708

                                      49
<PAGE>

     (d) if given to the Holder of the Common Securities, at the mailing
address of the Sponsor set forth below (or such other address as the Holder of
the Common Securities may give notice to the Trust):

         The AES Corporation
         1001 North 19th Street
         Arlington, Virginia  22209
         Attention:  Corporate Secretary
         Facsimile No:  (703) 528-4510

     (e) if given to any other Holder, at the address set forth on the books
and records of the Trust.

     A copy of any notice to the Property Trustee or the Delaware Trustee shall
also be sent to the Trust. All notices shall be deemed to have been given, when
received in person, telecopied with receipt confirmed, or mailed by first class
mail, postage prepaid except that if a notice or other document is refused
delivery or cannot be delivered because of a changed address of which no notice
was given, such notice or other document shall be deemed to have been delivered
on the date of such refusal or inability to deliver.

     SECTION 14.02. Undertaking for Costs. All parties to this Declaration
agree, and each Holder of any Securities by his or her acceptance thereof shall
be deemed to have agreed, that any court may in its discretion require, in any
suit for the enforcement of any right or remedy under this Declaration, or in
any suit against the Property Trustee for any action taken or omitted by it as
Property Trustee, the filing by any party litigant in such suit of an
undertaking to pay the costs of such suit, and that such court may in its
discretion assess reasonable costs, including reasonable attorneys' fees,
against any party litigant in such suit, having due regard to the merits and
good faith of the claims or defenses made by such party litigant; but the
provisions of this Section 14.02 shall not apply to any suit instituted by the
Property Trustee, to any suit instituted by any Holder of Preferred Securities,
or group of Holders of Preferred Securities, holding more than 10% in aggregate
liquidation amount of the outstanding Preferred Securities, or to any suit
instituted by any Holder of Preferred Securities for the enforcement of the
payment of the principal of (or premium, if any) or interest on the Debentures,
on or after the respective due dates expressed in such Debentures.

     SECTION 14.03. Governing Law. This Declaration and the rights of the
parties hereunder shall be governed by and interpreted in accordance with the
laws of the State of Delaware and all rights and remedies shall be governed by
such laws without regard to principles of conflict of laws.

                                      50
<PAGE>

     SECTION 14.04. Headings. Headings contained in this Declaration are
inserted for convenience of reference only and do not affect the interpretation
of this Declaration or any provision hereof.

     SECTION 14.05. Partial Enforceability. If any provision of this
Declaration, or the application of such provision to any Person or
circumstance, shall be held invalid, the remainder of this Declaration, or the
application of such provision to persons or circumstances other than those to
which it is held invalid, shall not be affected thereby.

     SECTION 14.06. Counterparts. This Declaration may contain more than one
counterpart of the signature pages and this Declaration may be executed by the
affixing of the signature of the Sponsor and each of the Trustees to one of
such counterpart signature pages. All of such counterpart signature pages shall
be read as though one, and they shall have the same force and effect as though
all of the signers had signed a single signature page.

     SECTION 14.07. Intention of the Parties. It is the intention of the
parties hereto that the Trust not be classified for United States federal
income tax purposes as an association taxable as a corporation or partnership
but that the Trust be treated as a grantor trust for United States federal
income tax purposes. The provisions of this Declaration shall be interpreted to
further this intention of the parties.

     SECTION 14.08. Successors and Assigns. Whenever in this Declaration any of
the parties hereto is named or referred to, the successors and assigns of such
party shall be deemed to be included, and all covenants and agreements in this
Declaration by the Sponsor and the Trustees shall bind and inure to the benefit
of their respective successors and assigns, whether so expressed.

                                      51
<PAGE>

     IN WITNESS WHEREOF, the undersigned has caused these presents to be
executed as of the day and year first above written.

         THE AES CORPORATION
         as Sponsor

         By: /s/ Barry J. Sharp
            ----------------------------
            Name:  Barry J. Sharp
            Title: Vice President and
                   Chief Financial Officer

                                      52
<PAGE>

    By: /s/ William R. Luraschi
        -------------------------------
             William R. Luraschi
             as Trustee

    By: /s/ Willard C. Hoagland, III
        --------------------------------
             Willard C. Hoagland, III
             as Trustee

    By: /s/ John Ruggirello
        --------------------------------
            John Ruggirello
            as Trustee

                                      53
<PAGE>

         BANK ONE, NATIONAL ASSOCIATION
         as Property Trustee

         By: /s/ Mary R. Fonti
            -------------------------------------------
            Name:  Mary R. Fonti
            Title: Vice President

         BANK ONE DELAWARE, INC.
         as Delaware Trustee

         By: /s/ Melissa G. Weisman
            -------------------------------------------
            Name:  Melissa G. Weisman
            Title: Vice President

                                      54
<PAGE>

                                                                      EXHIBIT A

                              CERTIFICATE OF TRUST

                                       OF

                                 AES TRUST VII

     This Certificate of Trust of AES Trust VII (the "Trust"), dated May 10,
2000, is being duly executed and filed by the undersigned, as trustees, to form
a business trust under the Delaware Business Trust Act (12 Del. C.ss.3801, et
seq.) (the "Act").

     1. Name. The name of the business trust formed by this Certificate of
Trust is AES Trust VII.

     2. Delaware Trustee. The name and business address of the trustee of the
Trust with its principal place of business in the State of Delaware are Bank
One Delaware, Inc., Christiana Center, 201 North Walnut Street, Wilmington,
Delaware 19801, Attention: Legal Department/First USA.

     3. Effective Date. This Certificate of Trust shall be effective upon
filing with the Secretary of State of the State of Delaware.

     IN WITNESS WHEREOF, the undersigned, being the trustees of the Trust, have
executed this Certificate of Trust in accordance with Section 3811(a)(1) of the
Act.

                         BANK ONE, NATIONAL ASSOCIATION,
                            not in its individual capacity but solely as
                            trustee

                         By: /s/ Mary R. Fonti
                            ------------------------------------
                            Name:  Mary R. Fonti
                            Title: Vice President

                         BANK ONE DELAWARE, INC.,
                         not in its individual capacity but solely as trustee

                         By: /s/ Melissa G. Weisman
                            ------------------------------------
                            Name:  Melissa G. Weisman
                            Title: Vice President

                                       1
<PAGE>

                         WILLIAM R. LURASCHI,
                         not in his individual capacity but solely as trustee

                         /s/ William R. Luraschi
                         ----------------------------------------------------

                         WILLARD C. HOAGLAND, III,
                         not in his individual capacity but solely as trustee

                         /s/ Willard C. Hoagland, III
                         ----------------------------------------------------

                         JOHN RUGGIRELLO,
                         not in his individual capacity but solely as trustee

                          /s/ John Ruggirello
                         ----------------------------------------------------

                                       2
<PAGE>

                                                                      EXHIBIT B

                                    TERMS OF
                              PREFERRED SECURITIES

     Pursuant to Section 7.01 of the Amended and Restated Declaration of Trust
of AES Trust VII dated as of May 17, 2000 (as amended from time to time, the
"Declaration"), the designations, rights, privileges, restrictions, preferences
and other terms and provisions of the Preferred Securities are set forth below
(each capitalized term used but not defined herein having the meaning set forth
in the Declaration):

     1. Designation and Number. Preferred Securities of the Trust with an
aggregate liquidation amount in the assets of the Trust of Four Hundred Million
Dollars ($400,000,000) (plus up to an additional Sixty Million ($60,000,000)
issuable upon exercise of the overallotment option set forth in the Purchase
Agreement) and a liquidation amount in the assets of the Trust of $50 per
Preferred Security, are hereby designated as "$3.00 Trust Convertible Preferred
Securities". The Preferred Security Certificates evidencing the Preferred
Securities shall be substantially in the form attached hereto as Annex I, with
such changes and additions thereto or deletions therefrom as may be required by
ordinary usage, custom or practice or to conform to the rules of any stock
exchange on which the Preferred Securities are listed. In connection with the
issuance and sale of the Preferred Securities and the Common Securities, the
Trust will purchase as trust assets Debentures of AES having an aggregate
principal amount equal to the aggregate liquidation amount of the Preferred
Securities and Common Securities so issued and bearing interest at an annual
rate equal to the annual Distribution rate on the Preferred Securities and
Common Securities and having payment and redemption provisions which correspond
to the payment and redemption provisions of the Preferred Securities and Common
Securities.

     2. Distributions. (a) Distributions payable on each Preferred Security
will be fixed at a rate per annum of 6% (the "Coupon Rate") of the stated
liquidation amount of $50 per Preferred Security. Distributions in arrears for
more than one calendar quarter will bear interest at the rate per annum of 6%
thereof (to the extent permitted by law), compounded quarterly. The term
"Distributions" as used herein means such periodic cash distributions and any
such interest payable unless otherwise stated. A Distribution will be made by
the Property Trustee only to the extent that interest payments are made in
respect of the Debentures held by the Property Trustee. The amount of
Distributions payable

<PAGE>

for any period will be computed for any quarterly Distribution period on the
basis of a 360-day year of twelve 30-day months.

     (b) Distributions on the Preferred Securities will be cumulative, will
accrue from May 17, 2000 and will be payable quarterly in arrears, on February
15, May 15, August 15 and November 15 of each year commencing on August 15,
2000, except as otherwise described below, but only if and to the extent that
interest payments are made in respect of the Debentures held by the Property
Trustee. So long as AES shall not be in default in the payment of interest on
the Debentures, AES has the right under the Indenture for the Debentures to
defer payments of interest by extending the interest payment period from time
to time on the Debentures for a period not exceeding 20 consecutive quarterly
interest periods (each, an "Extension Period") and, as a consequence, quarterly
Distributions will continue to accrue with interest thereon (to the extent
permitted by applicable law) at the rate of 6% per annum, compounded quarterly
during any such Extension Period. Prior to the termination of any such
Extension Period, AES may further extend such Extension Period; provided that
such Extension Period together with all such previous and further extensions
thereof may not exceed 20 consecutive quarterly interest periods; and provided
that no Extension Period shall last beyond the date of maturity or any
redemption date of the Debentures. Upon the termination of any Extension Period
and the payment of all amounts then due, AES may commence a new Extension
Period, subject to the above requirements. Payments of accrued Distributions
will be payable to Holders of Preferred Securities as they appear on the books
and records of the Trust on the first record date after the end of the
Extension Period.

     (c) Distributions on the Preferred Securities will be payable promptly by
the Property Trustee (or other Paying Agent) upon receipt of immediately
available funds to the Holders thereof as they appear on the books and records
of the Trust on the relevant record dates. While the Preferred Securities
remain in book-entry only form, the relevant record dates shall be one business
day prior to the relevant Distribution date, and if the Preferred Securities
are no longer in book-entry only form, the Regular Trustees shall have the
right to select relevant record dates which shall be more than one business day
prior to the relevant payment dates. Distributions payable on any Preferred
Securities that are not punctually paid on any Distribution payment date as a
result of AES having failed to make the corresponding interest payment on the
Debentures will forthwith cease to be payable to the person in whose name such
Preferred Security is registered on the relevant record date, and such
defaulted Distribution will instead be payable to the person in whose name such
Preferred Security is registered on the special record date established by the
Regular Trustees, which record date shall correspond to the special record date
or other specified date determined in accordance with the Indenture; provided,
however, that Distributions shall not be

                                       2
<PAGE>

considered payable on any Distribution payment date falling within an Extension
Period unless AES has elected to make a full or partial payment of interest
accrued on the Debentures on such Distribution payment date. Subject to any
applicable laws and regulations and the provisions of the Declaration, each
payment in respect of the Preferred Securities will be made as described in
paragraph 10 hereof. If any date on which Distributions are payable on the
Preferred Securities is not a Business Day, then payment of the Distribution
payable on such date will be made on the next succeeding day that is a Business
Day (and without any interest or other payment in respect of any such delay)
except that, if such Business Day is in the next succeeding calendar year, such
payment shall be made on the immediately preceding Business Day, in each case
with the same force and effect as if made on such date.

     (d) All Distributions paid with respect to the Preferred Securities and
the Common Securities will be paid Pro Rata to the Holders thereof entitled
thereto. If an Event of Default has occurred and is continuing, the Preferred
Securities shall have a priority over the Common Securities with respect to
Distributions.

     (e) In the event of an election by the Holder to convert its Securities
through the Conversion Agent into Common Stock pursuant to the terms of the
Securities as set forth in this Exhibit B to the Declaration, no payment,
allowance or adjustment shall be made with respect to accumulated and unpaid
Distributions on such Securities, or be required to be made; provided, however,
that if a Security is surrendered for conversion after the close of business on
any regular record date for payment of a Distribution and before the opening of
business on the corresponding Distribution date, then, notwithstanding such
conversion, the Distribution payable on such Distribution date will be paid in
cash to the person in whose name the Security is registered at the close of
business on such record date, and (other than a Security or a portion of a
Security called for redemption on a redemption date occurring after such record
date and prior to such Distribution date) when so surrendered for conversion,
the Security must be accompanied by payment of an amount equal to the
Distribution payable on such Distribution date.

     (f) In the event that there is any money or other property held by or for
the Trust that is not accounted for under the Declaration, such money or
property shall be distributed Pro Rata among the Holders of the Preferred
Securities and Common Securities.

     3. Liquidation Distribution Upon Dissolution. In the event of any
voluntary or involuntary dissolution of the Trust, the Holders of the Preferred
Securities and Common Securities at the date of the dissolution will be
entitled to receive Pro Rata solely out of the assets of the Trust available
for distribution to

                                       3
<PAGE>

Holders of Preferred Securities and Common Securities after satisfaction of
liabilities to creditors, an amount equal to the aggregate of the stated
liquidation amount of $50 per Preferred Security and Common Security plus
accrued and unpaid Distributions thereon to the date of payment (such amount
being the "Liquidation Distribution"), unless, in connection with such
dissolution, and after satisfaction of liabilities to creditors, Debentures in
an aggregate principal amount equal to the aggregate stated liquidation amount
of such Preferred Securities and Common Securities and bearing accrued and
unpaid interest in an amount equal to the accrued and unpaid Distributions on,
such Preferred Securities and Common Securities, shall be distributed Pro Rata
to the Holders of the Preferred Securities and Common Securities in exchange
for such Securities.

     If, upon any such dissolution, the Liquidation Distribution can be paid
only in part because the Trust has insufficient assets available to pay in full
the aggregate Liquidation Distribution, then the amounts payable directly by
the Trust on the Preferred Securities and Common Securities shall be paid,
subject to the next paragraph, on a Pro Rata basis.

     Holders of Common Securities will be entitled to receive Liquidation
Distributions upon any such dissolution Pro Rata with Holders of Preferred
Securities, except that if an Event of Default has occurred and is continuing,
the Preferred Securities shall have a priority over the Common Securities with
respect to such Liquidation Distribution.

     4. Redemption and Distribution of Debentures. The Preferred Securities and
Common Securities may only be redeemed if Debentures having an aggregate
principal amount equal to the aggregate liquidation amount of the Preferred
Securities and Common Securities are repaid, redeemed or distributed as set
forth below:

     (a) Upon the repayment of the Debentures, in whole or in part, whether at
maturity, upon redemption at any time or from time to time on or after May 19,
2003, or at any time in certain circumstances upon the occurrence of a Tax
Event, the proceeds of such repayment will be promptly applied to redeem Pro
Rata Preferred Securities and Common Securities having an aggregate liquidation
amount equal to the aggregate principal amount of the Debentures so repaid or
redeemed, upon not less than 30 nor more than 60 days' notice, at a redemption
price per Preferred and Common Security equal to the redemption price of the
Debentures, together with accrued and unpaid Distributions thereon through the
date of redemption, payable in cash. The date of any such repayment or
redemption of Preferred Securities and Common Securities shall be established
to coincide with the repayment or redemption date of the Debentures.

                                       4
<PAGE>

     (b) If fewer than all the outstanding Preferred Securities and Common
Securities are to be so redeemed, the Preferred Securities and the Common
Securities will be redeemed Pro Rata and the Preferred Securities to be
redeemed will be redeemed as described in paragraph 4(f)(ii) below. If a
partial redemption would result in the delisting of the Preferred Securities by
any national securities exchange or other organization on which the Preferred
Securities are then listed, AES pursuant to the Indenture will only redeem
Debentures in whole and, as a result, the Trust may only redeem the Preferred
Securities in whole.

     (c) If, at any time, a Tax Event or an Investment Company Event (each as
hereinafter defined, and each a "Special Event") shall occur and be continuing,
the Regular Trustees shall, unless the Debentures are redeemed in the limited
circumstances described below, dissolve the Trust and, after satisfaction of
creditors, cause Debentures held by the Property Trustee having an aggregate
principal amount equal to the aggregate stated liquidation amount of and
accrued and unpaid interest equal to accrued and unpaid Distributions on, and
having the same record date for payment as the Preferred Securities and Common
Securities, to be distributed to the Holders of the Preferred Securities and
Common Securities on a Pro Rata basis in liquidation of such Holders' interests
in the Trust, within 90 days following the occurrence of such Special Event
(the "90 Day Period"), provided, however, that in the case of the occurrence of
a Tax Event, as a condition of such dissolution and distribution, the Regular
Trustees shall have received an opinion of a nationally recognized independent
tax counsel experienced in such matters (a "No Recognition Opinion"), which
opinion may rely on any then applicable published revenue ruling of the
Internal Revenue Service, to the effect that the Holders of the Preferred
Securities will not recognize any gain or loss for United States federal income
tax purposes as a result of the dissolution of the Trust and distribution of
Debentures; and provided, further, that, if and as long as at the time there is
available to the Trust the opportunity to eliminate, within the 90 Day Period,
the Special Event by taking some ministerial action, such as filing a form or
making an election, or pursuing some other similar reasonable measure that has
no adverse effect on the Trust, AES or the Holders of the Preferred Securities
("Ministerial Action"), the Trust will pursue such measure in lieu of
dissolution.

     If in the case of the occurrence of a Tax Event, (i) the Regular Trustees
have received an opinion (a "Redemption Tax Opinion") of nationally recognized
independent tax counsel experienced in such matters that, as a result of a Tax
Event, there is more than an insubstantial risk that AES would be precluded
from deducting the interest on the Debentures for United States federal income
tax purposes even if the Debentures were distributed to the Holders of
Preferred Securities and Common Securities in liquidation of such Holder's
interest in the Trust as described in this paragraph 4(c) or (ii) the Regular
Trustees shall have

                                       5
<PAGE>

been informed by such tax counsel that a No Recognition Opinion cannot be
delivered to the Trust, AES shall have the right at any time, upon not less
than 30 nor more than 60 days' notice, to redeem the Debentures in whole or in
part for cash at the redemption price equal to 100% of the principal amount to
be redeemed plus any accrued and unpaid interest therein within 90 days
following the occurrence of such Tax Event, and promptly following such
redemption Preferred Securities and Common Securities with an aggregate
liquidation amount equal to the aggregate principal amount of the Debentures so
redeemed will be redeemed by the Trust at the redemption price on a Pro Rata
basis; provided, however, that, if at the time there is available to AES or the
Regular Trustees on behalf of the Trust the opportunity to eliminate, within
such 90 day period, the Tax Event by taking some Ministerial Action, AES or the
Regular Trustees on behalf of the Trust will pursue such measure in lieu of
redemption and; provided, further, that AES shall have no right to redeem the
Debentures while the Regular Trustees on behalf of the Trust are pursuing such
Ministerial Action. The Common Securities will be redeemed Pro Rata with the
Preferred Securities, except that if an Event of Default under the Indenture
has occurred and is continuing, the Preferred Securities will have a priority
over the Common Securities with respect to payment of the redemption price.

     "Tax Event" means that the Regular Trustees shall have obtained an opinion
of nationally recognized independent tax counsel experienced in such matters (a
"Dissolution Tax Opinion") to the effect that on or after May 11, 2000 as a
result of (a) any amendment to, or change (including any announced prospective
change) in, the laws (or any regulations thereunder) of the United States or
any political subdivision or taxing authority thereof or therein, (b) any
amendment to, or change in, an interpretation or application of any such laws
or regulations by any legislative body, court, governmental agency or
regulatory authority (including the enactment of any legislation and the
publication of any judicial decision or regulatory determination), (c) any
interpretation or pronouncement that provides for a position with respect to
such laws or regulations that differs from the theretofore generally accepted
position or (d) any action taken by any governmental agency or regulatory
authority, which amendment or change is enacted, promulgated, issued or
announced or which interpretation or pronouncement is issued or announced or
which action is taken, in each case on or after May 11, 2000, there is more
than an insubstantial risk that (i) the Trust is, or will be within 90 days of
the date thereof, subject to United States federal income tax with respect to
income accrued or received on the Debentures, (ii) the Trust is, or will be
within 90 days of the date thereof, subject to more than a de minimis amount of
other taxes, duties or other governmental charges or (iii) interest payable by
AES to the Trust on the Debentures is not, or within 90 days of the date
thereof will not be, deductible by AES for United States federal income tax
purposes.

                                       6
<PAGE>

     "Investment Company Event" means that the Regular Trustees shall have
received an opinion of nationally recognized independent counsel experienced in
practice under the Investment Company Act that, as a result of the occurrence
of a change in law or regulation or a change in interpretation or application
of law or regulation by any legislative body, court, governmental agency or
regulatory authority (a "Change in 1940 Act Law"), there is more than an
insubstantial risk that the Trust is or will be considered an Investment
Company which is required to be registered under the Investment Company Act,
which Change in 1940 Act Law becomes effective on or after May 11, 2000.

     On the date fixed for any distribution of Debentures, upon dissolution of
the Trust, (i) the Preferred Securities will no longer be deemed to be
outstanding and (ii) certificates representing Preferred Securities will be
deemed to represent beneficial interests in the Debentures having an aggregate
principal amount equal to the stated liquidation amount of, and bearing accrued
and unpaid interest equal to accrued and unpaid Distributions on, such
Preferred Securities until such certificates are presented to AES or its agent
for transfer or reissuance.

     (d) The Trust may not redeem any outstanding Preferred Securities unless
all accrued and unpaid Distributions have been paid on all Preferred Securities
for all quarterly Distribution periods terminating on or prior to the date of
redemption.

     (e) If Debentures are distributed to Holders of the Preferred Securities,
AES, pursuant to the terms of the Indenture, will use its best efforts to have
the Debentures listed on any exchange on which the Preferred Securities were
listed immediately prior to the distribution of the Debentures.

     (f) (i) Notice of any redemption of, or notice of distribution of
Debentures in exchange for, the Preferred Securities and Common Securities (a
"Redemption/ Distribution Notice") will be given by the Regular Trustees on
behalf of the Trust by mail to each Holder of Preferred Securities and Common
Securities to be redeemed or exchanged not less than 30 nor more than 60 days
prior to the date fixed for redemption or exchange thereof. For purposes of the
calculation of the date of redemption or exchange and the dates on which
notices are given pursuant to this paragraph (f)(i), a Redemption/Distribution
Notice shall be deemed to be given on the day such notice is first mailed by
first-class mail, postage prepaid, to Holders of Preferred Securities and
Common Securities. Each Redemption/Distribution Notice shall be addressed to
the Holders of Preferred Securities and Common Securities at the address of
each such Holder appearing in the books and records of the Trust. No defect in
the Redemption/Distribution Notice or in the mailing of either thereof with
respect to any Holder shall affect

                                       7
<PAGE>

the validity of the redemption or exchange proceedings with respect to any other
Holder.

     (ii) In the event that fewer than all the outstanding Preferred Securities
are to be redeemed, the Preferred Securities to be redeemed will be redeemed
Pro Rata from each Holder of Preferred Securities, it being understood that, in
respect of Preferred Securities registered in the name of and held of record by
DTC (or successor Clearing Agency) or any other nominee, the Preferred
Securities will be redeemed from, and the distribution of the proceeds of such
redemption will be made to, each Clearing Agency Participant (or person on
whose behalf such nominee holds such securities) in accordance with the
procedures applied by such agency or nominee.

     (iii) Subject to paragraph 10 hereof, if the Trust gives a Redemption/
Distribution Notice in respect of a redemption of Preferred Securities as
provided in this paragraph 4 (which notice will be irrevocable) then (A) while
the Preferred Securities are in book-entry only form, with respect to the
Preferred Securities, by 12:00 noon, New York City time, on the redemption
date, provided that AES has paid the Property Trustee, in immediately available
funds, a sufficient amount of cash in connection with the related redemption or
maturity of the Debentures, the Property Trustee will deposit irrevocably with
DTC (or successor Clearing Agency) funds sufficient to pay the applicable
redemption price with respect to the Preferred Securities and will give DTC (or
successor Clearing Agency) irrevocable instructions and authority to pay the
redemption price to the Holders of the Preferred Securities and (B) if the
Preferred Securities are issued in definitive form, with respect to the
Preferred Securities and provided that AES has paid the Property Trustee, in
immediately available funds, a sufficient amount of cash in connection with the
related redemption or maturity of the Debentures, the Property Trustee will pay
the relevant redemption price to the Holders of such Preferred Securities by
check mailed to the address of the relevant Holder appearing on the books and
records of the Trust on the redemption date. If a Redemption/Distribution
Notice shall have been given and funds deposited as required, if applicable,
then immediately prior to the close of business on the date of such deposit,
Distributions will cease to accrue on the Preferred Securities called for
redemption, such Preferred Securities will no longer be deemed to be
outstanding and all rights of Holders of such Preferred Securities so called
for redemption will cease, except the right of the Holders of such Preferred
Securities to receive the redemption price, but without interest on such
redemption price. Neither the Trustees nor the Trust shall be required to
register or cause to be registered the transfer of any Preferred Securities
which have been so called for redemption. If any date fixed for redemption of
Preferred Securities is not a Business Day, then payment of the redemption
price payable on such date will be made on the next succeeding day that is a
Business Day (and without any interest

                                       8
<PAGE>

or other payment in respect of any such delay) except that, if such Business
Day falls in the next calendar year, such payment will be made on the
immediately preceding Business Day, in each case with the same force and effect
as if made on such date fixed for redemption. If AES fails to repay Debentures
on maturity or on the date fixed for this redemption or if payment of the
redemption price in respect of Preferred Securities is improperly withheld or
refused and not paid either by the Property Trustee or by AES pursuant to the
Preferred Securities Guarantee, Distributions on such Preferred Securities will
continue to accrue, from the original redemption date to the date of payment,
in which case the actual payment date will be considered the date fixed for
redemption for purposes of calculating the redemption price.

     (iv) Redemption/Distribution Notices shall be sent by the Regular Trustees
on behalf of the Trust to DTC or its nominee (or any successor Clearing Agency
or its nominee) if the Global Certificates have been issued or, if Definitive
Preferred Security Certificates have been issued, to the Holders of the
Preferred Securities.

     (v) Upon the date of dissolution of the Trust and distribution of
Debentures as a result of the occurrence of a Special Event, Preferred Security
Certificates shall be deemed to represent beneficial interests in the
Debentures so distributed, and the Preferred Securities will no longer be
deemed outstanding and may be canceled by the Regular Trustees. The Debentures
so distributed shall have an aggregate principal amount equal to the aggregate
liquidation amount of the Preferred Securities so distributed.

     (vi) Subject to the foregoing and applicable law (including, without
limitation, United States federal securities laws), AES or any of its
subsidiaries may at any time and from time to time purchase outstanding
Preferred Securities by tender, in the open market or by private agreement.

     5. Conversion Rights. The Holders of Securities shall have the right at
any time prior to the close of business on May 14, 2008 (or, in the case of
Securities called for redemption, prior to the close of business on the
Business Day prior to the redemption date), at their option, to cause the
Conversion Agent to convert Securities, on behalf of the converting Holders,
into shares of Common Stock in the manner described herein on and subject to
the following terms and conditions:

     The Securities will be convertible at the office of the Conversion Agent
into fully paid and nonassessable shares of Common Stock pursuant to the
Holder's direction to the Conversion Agent to exchange such Securities for a
portion of the Debentures theretofore held by the Trust on the basis of one

                                       9
<PAGE>

Security per $50 principal amount of Debentures, and immediately convert such
amount of Debentures into fully paid and nonassessable shares of Common Stock
at an initial rate of 1.0811 shares of Common Stock per $50 principal amount of
Debentures (which is equivalent to a conversion price of $46.25 per share of
Common Stock, subject to certain adjustments set forth in Sections 5.03 and
5.04 of the Supplemental Indenture, but without adjusting to give effect to the
stock dividend payable on June 1, 2000 (as so adjusted, the "Conversion
Price")).

     (a) In order to convert Securities into Common Stock the Holder shall
submit to the Conversion Agent at the office referred to above an irrevocable
request to convert Securities on behalf of such Holder (the "Conversion
Request"), together, if the Securities are in certificated form, with such
certificates. The Conversion Request shall (i) set forth the number of
Securities to be converted and the name or names, if other than the Holder, in
which the shares of Common Stock should be issued and (ii) direct the
Conversion Agent (a) to exchange such Securities for a portion of the
Debentures held by the Trust (at the rate of exchange specified in the
preceding paragraph) and (b) to immediately convert such Debentures on behalf
of such Holder, into Common Stock (at the conversion rate specified in the
preceding paragraph). The Conversion Agent shall notify the Property Trustee of
the Holder's election to exchange Securities for a portion of the Debentures
held by the Trust and the Property Trustee shall, upon receipt of such notice,
deliver to the Conversion Agent the appropriate principal amount of Debentures
for exchange in accordance with this Section. The Conversion Agent shall
thereupon notify the Property Trustee of the Holder's election to convert such
Debentures into shares of Common Stock. If a Security is surrendered for
conversion after the close of business on any regular record date for payment
of a Distribution and before the opening of business on the corresponding
Distribution payment date, then, notwithstanding such conversion, the
Distribution payable on such Distribution payment date will be paid in cash to
the person in whose name the Security is registered at the close of business on
such record date, and (other than a Security or a portion of a Security called
for redemption on a redemption date occurring after such record date and prior
to such Distribution payment date) when so surrendered for conversion, the
Security must be accompanied by payment of an amount equal to the Distribution
payable on such Distribution payment date. Except as provided above, neither
the Trust nor the Sponsor will make, or be required to make, any payment,
allowance or adjustment upon any conversion on account of any accumulated and
unpaid Distributions accumulated on the Securities surrendered for conversion,
or on account of any accumulated and unpaid dividends on the shares of Common
Stock issued upon such conversion. Securities shall be deemed to have been
converted immediately prior to the close of business on the day on which the
Conversion Request relating to such Securities is received by the Trust in
accordance with the foregoing provision (the "Conversion Date"). The Person or
Persons entitled to

                                      10
<PAGE>

receive Common Stock issuable upon conversion of the Debentures shall be
treated for all purposes as the record holder or holders of such Common Stock
at such time. As promptly as practicable on or after the Conversion Date, the
Sponsor shall issue and deliver at the office of the Conversion Agent a
certificate or certificates for the number of full shares of Common Stock
issuable upon such conversion, together with the cash payment, if any, in lieu
of any fraction of any share to the Person or Persons entitled to receive the
same, unless otherwise directed by the Holder in the Conversion Request and the
Conversion Agent shall distribute such certificate or certificates, together
with the applicable cash payment, if any, to such Person or Persons.

     (b) Each Holder of a Security by his acceptance thereof appoints Bank One,
National Association "Conversion Agent" for the purpose of effecting the
conversion of Securities in accordance with this Section. In effecting the
conversion and transactions described in this Section, the Conversion Agent
shall be acting as agent of the Holders of Securities directing it to effect
such conversion transactions. The Conversion Agent is hereby authorized (i) to
exchange Securities from time to time for Debentures held by the Trust in
connection with the conversion of such Securities in accordance with this
section and (ii) to convert all or a portion of the Debentures into Common
Stock and thereupon to deliver such shares of Common Stock in accordance with
the provisions of this section and to deliver to the Trust a new Debenture or
Debentures for any resulting unconverted principal amount.

     (c) No fractional shares of Common Stock will be issued as a result of
conversion, but in lieu thereof, such fractional interest will be paid in cash
by the Sponsor to the Conversion Agent, which in turn will make such payment to
the Holder or Holders of Securities so converted.

     (d) The Sponsor shall at all times reserve and keep available out of its
authorized and unissued Common Stock, solely for issuance upon the conversion
of the Debentures, free from any preemptive or other similar rights, such
number of shares of Common Stock as shall from time to time be issuable upon
the conversion of all the Debentures then outstanding. Notwithstanding the
foregoing, the Sponsor shall be entitled to deliver upon conversion of
Debentures, shares of Common Stock reacquired and held in the treasury of the
Sponsor (in lieu of the issuance of authorized and unissued shares of Common
Stock), so long as any such treasury shares are free and clear of all liens,
charges, security interests or encumbrances. Any shares of Common Stock issued
upon conversion of the Debentures shall be duly authorized, validly issued and
fully paid and nonassessable. The Trust shall deliver the shares of Common
Stock received upon conversion of the Debentures to the converting Holder free
and clear of all liens, charges, security interests and encumbrances, except
for United States

                                      11
<PAGE>

withholding taxes. Each of the Sponsor and the Trust shall prepare and shall
use its best efforts to obtain and keep in force such governmental or
regulatory permits or other authorizations as may be required by law, and shall
comply with all applicable requirements as to registration or qualification of
Common Stock (and all requirements to list Common Stock issuable upon
conversion of Debentures that are at the time applicable), in order to enable
the Sponsor to lawfully issue Common Stock to the Trust upon conversion of the
Debentures and the Trust to lawfully deliver Common Stock to each Holder upon
conversion of the Securities.

     (e) The Sponsor will pay any and all taxes that may be payable in respect
of the issue or delivery of shares of Common Stock on conversion of Debentures
and the delivery of the shares of Common Stock by the Trust upon conversion of
the Securities. The Sponsor shall not, however, be required to pay any tax
which may be payable in respect of any transfer involved in the issue and
delivery of shares of Common Stock in a name other than that in which the
Securities so converted were registered, and no such issue or delivery shall be
made unless and until the person requesting such issue has paid to the Trust
the amount of any such tax, or has established to the satisfaction of the Trust
that such tax has been paid.

     (f) Nothing in the preceding Paragraph (e) shall limit the requirement of
the Trust to withhold taxes pursuant to the terms of the Securities as set
forth in this Exhibit B to the Declaration or to the Declaration itself or
otherwise require the Property Trustee or the Trust to pay any amounts on
account of such withholdings.

     6. Voting Rights. (a) Except as provided under paragraph 6(b) below and as
otherwise required by law and the Declaration, the Holders of the Preferred
Securities will have no voting rights.

     (b) If any proposed amendment to the Declaration provides for, or the
Regular Trustees otherwise propose to effect, (i) any action that would
adversely affect the powers, preferences or special rights of the Securities,
whether by way of amendment to the Declaration or otherwise, or (ii) the
dissolution, winding-up or termination of the Trust, other than in connection
with the distribution of Debentures held by the Property Trustee, upon the
occurrence of a Special Event or in connection with the redemption of Preferred
Securities as a consequence of a redemption of Debentures, then the Holders of
outstanding Securities will be entitled to vote on such amendment or proposal
as a class and such amendment or proposal shall not be effective except with
the approval of the Holders of Securities representing a Majority in
liquidation amount of such Securities; provided, however, that (A) if any
amendment or proposal referred to in clause (i) above would adversely affect
only the Preferred Securities or the Common

                                      12
<PAGE>

Securities, then only the affected class will be entitled to vote on such
amendment or proposal and such amendment or proposal shall not be effective
except with the approval of a Majority in liquidation amount of such class of
Securities and (B) amendments to the Declaration shall be subject to such
further requirements as are set forth in Sections 12.01 and 12.02 of the
Declaration.

     In the event the consent of the Property Trustee, as the holder of the
Debentures, is required under the Indenture with respect to any amendment,
modification or termination of the Indenture or the Debentures, the Property
Trustee shall request the written direction of the Holders of the Securities
with respect to such amendment, modification or termination. The Property
Trustee shall vote with respect to such amendment, modification or termination
as directed by a Majority in liquidation amount of the Securities voting
together as a single class; provided that where such amendment, modification or
termination of the Indenture requires the consent or vote of (1) holders of
Debentures representing a specified percentage greater than a majority in
principal amount of the Debentures or (2) each holder of Debentures, the
Property Trustee may only vote with respect to that amendment, modification or
termination as directed by, in the case of clause (1) above, the vote of
Holders of Securities representing such specified percentage of the aggregate
liquidation amount of the Securities, or, in the case of clause (2) above, each
Holder of Securities; and provided, further, that the Property Trustee shall be
under no obligation to take any action in accordance with the directions of the
Holders of Securities unless the Property Trustee shall have received, at the
expense of the Sponsor, an opinion of nationally recognized independent tax
counsel recognized as expert in such matters to the effect that the Trust will
not be classified for United States federal income tax purposes as an
association taxable as a corporation or a partnership on account of such action
and will be treated as a grantor trust for United States federal income tax
purposes following such action.

     Subject to Section 2.06 of the Declaration, and the provisions of this and
the next succeeding paragraph, the Holders of a Majority in liquidation amount
of the Preferred Securities, voting separately as a class shall have the right
to (A) on behalf of all Holders of Preferred Securities, waive any past default
that is waivable under the Declaration (subject to, and in accordance with the
Declaration) and (B) direct the time, method and place of conducting any
proceeding for any remedy available to the Property Trustee, or exercising any
trust or power conferred upon the Property Trustee under the Declaration,
including the right to direct the Property Trustee, as the holder of the
Debentures, to (i) direct the time, method and place of conducting any
proceeding for any remedy available to the Debenture Trustee, or exercising any
trust or power conferred on the Debenture Trustee with respect to the
Debentures, (ii) waive any past default that is waivable under Section 6.06 of
the Indenture, or (iii) exercise

                                      13
<PAGE>

any right to rescind or annul a declaration that the principal of all the
Debentures shall be due and payable; provided that where the taking of any
action under the Indenture requires the consent or vote of (1) holders of
Debentures representing a specified percentage greater than a majority in
principal amount of the Debentures or (2) each holder of Debentures, the
Property Trustee may only take such action if directed by, in the case of
clause (1) above, the vote of Holders of Preferred Securities representing such
specified percentage of the aggregate liquidation amount of the Preferred
Securities, or, in the case of clause (2) above, each Holder of Preferred
Securities. The Property Trustee shall not revoke any action previously
authorized or approved by a vote of the Holders of the Preferred Securities.
Other than with respect to directing the time, method and place of conducting
any proceeding for any remedy available to the Property Trustee or the
Debenture Trustee as set forth above, the Property Trustee shall be under no
obligation to take any of the foregoing actions at the direction of the Holders
of Preferred Securities unless the Property Trustee shall have received, at the
expense of the Sponsor, an opinion of nationally recognized independent tax
counsel recognized as expert in such matters to the effect that the Trust will
not be classified for United States federal income tax purposes as an
association taxable as a corporation or a partnership on account of such action
and will be treated as a grantor trust for United States federal income tax
purposes following such action. If the Property Trustee fails to enforce its
rights under the Declaration (including, without limitation, its rights, powers
and privileges as a holder of the Debentures under the Indenture), any Holder
of Preferred Securities may, to the extent permitted by law, after a period of
30 days has elapsed from such Holder's written request to the Property Trustee
to enforce such rights, institute a legal proceeding directly against AES to
enforce the Property Trustee's rights under the Declaration, without first
instituting a legal proceeding against the Property Trustee or any other
Person; provided however, that the holders of 25% in aggregate liquidation
preference of the outstanding Preferred Securities have the right to directly
institute proceedings for the enforcement of payments to such holders of
principal of, premium, if any, or interest on the Debentures having a principal
amount equal to the aggregate liquidation preference of the Preferred
Securities of such holders. Notwithstanding the foregoing, if an Event of
Default has occurred and is continuing and such event is attributable to the
failure of the Sponsor to pay interest or principal on the Debentures on the
date such interest or principal is otherwise payable (or in the case of
redemption, on the redemption date), then the registered holder of the
Preferred Securities may directly institute a proceeding for enforcement of
payment to such holder of the principal of or interest on the Debentures having
a principal amount equal to the aggregate liquidation amount of the Preferred
Securities of such Holder (a "Holder Direct Action") on or after the respective
due date specified in the Debentures. In connection with such Holder Direct
Action, the Holder of Common Securities will be subrogated to the rights of
such Holder of Preferred Securities under the

                                      14
<PAGE>

Declaration to the extent of any payment made by the Sponsor to such Holder of
Preferred Securities in such Holder Direct Action. Except as provided in the
preceding sentences, the Holders of Preferred Securities will not be able to
exercise any other remedy available to the Holders of the Debentures.

     A waiver of an Indenture Event of Default by the Property Trustee at the
direction of the Holders of the Preferred Securities will constitute a waiver
of the corresponding Event of Default under the Declaration in respect of the
Securities.

     Any required approval or direction of Holders of Preferred Securities may
be given at a separate meeting of Holders of Preferred Securities convened for
such purpose, at a meeting of all of the Holders of Securities of the Trust or
pursuant to written consent. The Regular Trustees will cause a notice of any
meeting at which Holders of Preferred Securities are entitled to vote, to be
mailed to each Holder of record of Preferred Securities. Each such notice will
include a statement setting forth (i) the date of such meeting, (ii) a
description of any resolution proposed for adoption at such meeting on which
such Holders are entitled to vote and (iii) instructions for the delivery of
proxies.

     No vote or consent of the Holders of Preferred Securities will be required
for the Trust to redeem and cancel Preferred Securities or distribute
Debentures in accordance with the Declaration.

     Notwithstanding that Holders of Preferred Securities are entitled to vote
or consent under any of the circumstances described above, any of the Preferred
Securities at such time that are owned by AES or by any entity directly or
indirectly controlling or controlled by or under direct or indirect common
control with AES shall not be entitled to vote or consent and shall, for
purposes of such vote or consent, be treated as if they were not outstanding.

     Except as provided in this paragraph 6, Holders of the Preferred
Securities will have no rights to increase or decrease the number of Trustees
or to appoint, remove or replace a Trustee, which voting rights are vested
solely in the Holders of the Common Securities.

     7. Pro Rata Treatment. A reference in these terms of the Preferred
Securities to any payment, distribution or treatment as being "Pro Rata" shall
mean pro rata to each Holder of Securities according to the aggregate
liquidation amount of the Securities held by the relevant Holder in relation to
the aggregate liquidation amount of all Securities outstanding unless, in
relation to a payment, an Event of Default has occurred and is continuing, in
which case any funds available to make such payment shall be paid first to each
Holder of the Preferred Securities pro rata according to the aggregate
liquidation amount of Preferred

                                      15
<PAGE>

Securities held by the relevant Holder relative to the aggregate liquidation
amount of all Preferred Securities outstanding, and only after satisfaction of
all amounts owed to the Holders of the Preferred Securities, to each Holder of
Common Securities pro rata according to the aggregate liquidation amount of
Common Securities held by the relevant Holder relative to the aggregate
liquidation amount of all Common Securities outstanding.

     8. Ranking. The Preferred Securities rank pari passu and payment thereon
will be made Pro Rata with the Common Securities except that where an Event of
Default occurs and is continuing, the rights of Holders of Preferred Securities
to payment in respect of Distributions and payments upon liquidation,
redemption or otherwise rank in priority to the rights of Holders of the Common
Securities.

     9. Mergers, Consolidations or Amalgamations. Except pursuant to Section 3
hereof, the Trust may not consolidate, amalgamate, merge with or into, or be
replaced by, or convey, transfer or lease its properties and assets to, any
corporation or other entity.

     10. Transfer, Exchange, Method of Payments. Payment of Distributions and
payments on redemption of the Preferred Securities will be payable, the
transfer of the Preferred Securities will be registrable, and Preferred
Securities will be exchangeable for Preferred Securities of other denominations
of a like aggregate liquidation amount, at the principal corporate trust office
of the Property Trustee in The City of New York; provided that payment of
Distributions may be made at the option of the Regular Trustees on behalf of
the Trust by check mailed to the address of the persons entitled thereto and
that the payment on redemption of any Preferred Security will be made only upon
surrender of such Preferred Security to the Property Trustee.

     11. Acceptance of Indenture and Preferred Securities Guarantee. Each
Holder of Preferred Securities, by the acceptance thereof, agrees to the
provisions of (i) the Preferred Securities Guarantee, including the
subordination provisions therein and (ii) the Indenture and the Debentures,
including the subordination provisions of the Indenture.

     12. No Preemptive Rights. The Holders of Preferred Securities shall have
no preemptive rights to subscribe to any additional Preferred Securities or
Common Securities.

     13. Miscellaneous. These terms shall constitute a part of the Declaration.
The Trust will provide a copy of the Declaration and the Indenture to a Holder
without charge on written request to the Trust at its principal place of
business.

                                      16
<PAGE>

                                                                        Annex I

                     FORM OF PREFERRED SECURITY CERTIFICATE

     [IF THE PREFERRED SECURITY IS TO BE A GLOBAL CERTIFICATE INSERT - This
Preferred Security is a Global Certificate within the meaning of the
Declaration hereinafter referred to and is registered in the name of The
Depository Trust Company ("DTC") or a nominee of DTC. This Preferred Security
is exchangeable for Preferred Securities registered in the name of a person
other than DTC or its nominee only in the limited circumstances described in
the Declaration and no transfer of this Preferred Security (other than a
transfer of this Preferred Security as a whole by DTC to a nominee of DTC or by
a nominee of DTC to DTC or another nominee of DTC) may be registered except in
limited circumstances.

     Unless this Preferred Security is presented by an authorized
representative of The Depository Trust Company (55 Water Street, New York) to
the Trust or its agent for registration of transfer, exchange or payment, and
any Preferred Security issued is registered in the name of Cede & Co. or such
other name as requested by an authorized representative of The Depository Trust
Company and any payment hereon is made to Cede & Co., ANY TRANSFER, PLEDGE OR
OTHER USE HEREOF FOR VALUE OR OTHERWISE BY A PERSON IS WRONGFUL since the
registered owner hereof, Cede & Co., has an interest herein.]

Number                                                      Preferred Securities
      -----------                                 ----------
                                                         CUSIP NO. ____________

                  Certificate Evidencing Preferred Securities

                                       of

                                 AES Trust VII

                  $3.00 Trust Convertible Preferred Securities
                     (liquidation amount $50 per security)

     AES Trust VII, a statutory business trust created under the laws of the
State of Delaware (the "Trust"), hereby certifies that _________ (the "Holder")

<PAGE>

is the registered owner of ___________ (______) preferred securities of the
Trust representing undivided beneficial interests in the assets of the Trust
designated the $3.00 Trust Convertible Preferred Securities (liquidation amount
$50 per security) (the "Preferred Securities"). The Preferred Securities are
transferable on the books and records of the Trust, in person or by a duly
authorized attorney, upon surrender of this certificate duly endorsed and in
proper form for transfer. The designations, rights, privileges, restrictions,
preferences and other terms and provisions of the Preferred Securities are set
forth in, and this certificate and the Preferred Securities represented hereby
are issued and shall in all respects be subject to the terms and provisions of,
the Amended and Restated Declaration of Trust of the Trust dated as of May 17,
2000, as the same may be amended from time to time (the "Declaration")
including the designation of the terms of Preferred Securities as set forth in
Exhibit B thereto. The Preferred Securities and the Common Securities issued by
the Trust pursuant to the Declaration represent undivided beneficial interests
in the assets of the Trust, including the Debentures (as defined in the
Declaration) issued by The AES Corporation, a Delaware corporation ("AES"), to
the Trust pursuant to the Indenture referred to in the Declaration. The Holder
is entitled to the benefits of the Guarantee Agreement of AES dated as of May
17, 2000 (the "Guarantee") to the extent provided therein. The Trust will
furnish a copy of the Declaration, the Guarantee and the Indenture to the
Holder without charge upon written request to the Trust at its principal place
of business or registered office.

     The Holder of this Certificate, by accepting this Certificate, is deemed
to have (i) agreed to the terms of the Indenture and the Debentures, including
that the Debentures are subordinate and junior in right of payment to all
Senior and Subordinated Debt (as defined in the Indenture) as and to the extent
provided in the Indenture and (ii) agreed to the terms of the Guarantee,
including that the Guarantee is subordinate and junior in right of payment to
all other liabilities of AES, including the Debentures, and ranks pari passu in
right payment with the most senior preferred stock issued, from time to time,
by AES.

     Upon receipt of this certificate, the Holder is bound by the Declaration
and is entitled to the benefits thereunder.

     Unless the Property Trustee's Certificate of Authentication hereon has
been properly executed, these Trust Preferred Securities shall not be entitled
to any benefit under the Declaration or be valid or obligatory for any purpose.

                                       2
<PAGE>

     IN WITNESS WHEREOF, the Trustees of the Trust have executed this
certificate this seventeenth day of May 2000.

                                    AES TRUST VII

                                    By:_________________________, as Trustee
                                       Name:
                                       Title: Trustee

                                    By:_________________________, as Trustee
                                       Name:
                                       Title: Trustee

Dated:

Countersigned and Registered:

BANK ONE, NATIONAL ASSOCIATION
  Transfer Agent and Registrar

By:___________________________
         Authorized Signature

<PAGE>

                         [FORM OF REVERSE OF SECURITY]

     Distributions payable on each Preferred Security will be fixed at a rate
per annum of 6% of the stated liquidation amount of $50 per Preferred Security,
such rate being the rate of interest payable on the Debentures to be held by
the Property Trustee. Distributions in arrears for more than one quarter will
bear interest thereon at the rate per annum of 6% thereof (to the extent
permitted by law) compounded quarterly. The term "Distributions" as used herein
means such cash distributions and any such interest payable unless otherwise
stated. A Distribution is payable only to the extent that payments are made in
respect of the Debentures held by the Property Trustee. The amount of
Distributions payable for any period will be computed on the basis of a 360-day
year of twelve 30-day months.

     Except as otherwise described below, distributions on the Preferred
Securities will be cumulative, will accrue from May 17, 2000 and will be
payable quarterly in arrears, on February 15, May 15, August 15 and November 15
of each year, commencing on August 15, 2000, but only if and to the extent that
interest payments are made in respect of the Debentures held by the Property
Trustee. So long as AES shall not be in default in the payment of interest on
the Debentures, AES has the right under the Indenture for the Debentures to
defer payments of interest by extending the interest payment period from time
to time on the Debentures for a period not exceeding 20 consecutive quarters
(each an "Extension Period") and, as a consequence, quarterly Distributions
will continue to accrue with interest thereon (to the extent permitted by
applicable law) at the rate of 6% per annum, compounded quarterly during such
Extension period; provided that no Extension Period shall last beyond the date
of maturity or any redemption date of the Debentures. Prior to the termination
of any such Extension Period, AES may commence a new Extension Period; provided
that such Extension Period together with all such previous and further
extensions thereof may not exceed 20 consecutive quarterly interest periods.
Payments of accrued Distributions will be payable to Holders as they appear on
the books and records of the Trust on the first record date after the end of
the Extension Period. Upon the termination of any Extension Period and the
payment of all amounts then due, AES may commence a new Extension Period,
subject to the above requirements.

     The Preferred Securities shall be redeemable as provided in the
Declaration.

     The Preferred Securities shall be convertible into shares of Common Stock,
through (i) the exchange of Preferred Securities for a portion of the
Debentures and (ii) the immediate conversion of such Debentures into Common
Stock, in the manner and according to the terms set forth in the Declaration.

                                       4
<PAGE>

                               CONVERSION REQUEST

     To: Bank One, National Association as Property Trustee of AES Trust VII

     The undersigned owner of these Preferred Securities hereby irrevocably
exercises the option to convert these Preferred Securities, or the portion
below designated, into common stock of The AES Corporation (the "Common Stock")
in accordance with the terms of the Amended and Restated Declaration of Trust,
dated as of May 17, 2000 (as amended from time to time, the "Declaration"), by
William R. Luraschi, John Ruggirello and Willard C. Hoagland, III as Regular
Trustees, Bank One, Delaware Inc., as Delaware Trustee, Bank One, National
Association, as Property Trustee, The AES Corporation, as Sponsor, and by the
Holders, from time to time, of undivided beneficial interests in the assets of
the Trust to be issued pursuant to the Declaration. Pursuant to the
aforementioned exercise of the option to convert these Preferred Securities,
the undersigned hereby directs the Conversion Agent (as that term is defined in
the Declaration) to (i) exchange such Preferred Securities for a portion of the
Debentures (as that term is defined in the Declaration) held by the Trust (at
the rate of exchange specified in the terms of the Preferred Securities set
forth as Exhibit B to the Declaration) and (ii) immediately convert such
Debentures on behalf of the undersigned, into Common Stock (at the conversion
rate specified in the terms of the Trust Preferred Securities set forth as
Exhibit B to the Declaration).

     The undersigned does also hereby direct the Conversion Agent that the
shares issuable and deliverable upon conversion, together with any check in
payment for fractional shares, be issued in the name of and delivered to the
undersigned, unless a different name has been indicated in the assignment
below. If shares are to be issued in the name of a person other than the
undersigned, the undersigned will pay all transfer taxes payable with respect
thereto.

                                       5
<PAGE>

Date:  _______________, _____
in whole ___      in part ___
                                            Number of Preferred Securities to
                                            be converted:

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

                                            If a name or names other than the
                                            undersigned, please indicate in the
                                            spaces below the name or names in
                                            which the shares of Common Stock
                                            are to be issued, along with the
                                            address or addresses of such person
                                            or persons
                                            ----------------------------------

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

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

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

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

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

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

                                            Signature (for conversion only)
                            Please Print or Typewrite Name and Address,
                            Including Zip Code, and Social Security or Other
                            Identifying Number

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

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

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

                                       6
<PAGE>

                                                     Signature Guarantee:**
---------

--------
**(Signature must be guaranteed by an "eligible guarantor institution" that is,
a bank, stockbroker, savings and loan association or credit union meeting the
requirements of the Conversion Agent, which requirements include membership or
participation in the Securities Transfer Agents Medallion Program ("STAMP") or
such other "signature guarantee program" as may be determined by the Conversion
Agent in addition to, or in substitution for, STAMP, all in accordance with the
Securities Exchange Act of 1934, as amended.)

                                       7
<PAGE>

                                   ASSIGNMENT

FOR VALUE RECEIVED, the undersigned assigns and transfers this Preferred
Security Certificate to:

------------------------------------------------------------
------------------------------------------------------------
------------------------------------------------------------
(Insert assignee's social security or tax identification number)

------------------------------------------------------------
------------------------------------------------------------
------------------------------------------------------------
(Insert address and zip code of assignee)

and irrevocably appoints

------------------------------------------------------------
------------------------------------------------------------
------------------------------------------------------------
agent to transfer this Preferred Security Certificate on the books of the Trust.
The agent may substitute another to act for him or her.

Date: _________________________

Signature: ____________________

NOTICE: THE SIGNATURE(S) TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME(S) AS
WRITTEN UPON THE FACE OF THE CERTIFICATE IN EVERY PARTICULAR, WITHOUT
ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATEVER.

                                       8
<PAGE>

                                   ASSIGNMENT

FOR VALUE RECEIVED, the undersigned assigns and transfers this Preferred
Security Certificate to:

------------------------------------------------------------
------------------------------------------------------------
------------------------------------------------------------
(Insert assignee's social security or tax identification number)

------------------------------------------------------------
------------------------------------------------------------
------------------------------------------------------------
(Insert address and zip code of assignee)

and irrevocably appoints

------------------------------------------------------------
------------------------------------------------------------
------------------------------------------------------------
agent to transfer this Preferred Security Certificate on the books of the Trust.
The agent may substitute another to act for him or her.

Date: _________________________

Signature: ____________________

NOTICE: THE SIGNATURE(S) TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME(S) AS
WRITTEN UPON THE FACE OF THE CERTIFICATE IN EVERY PARTICULAR, WITHOUT
ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATEVER.

                                       9
<PAGE>

                  [FORM OF ASSIGNMENT FOR PREFERRED SECURITY]

For value received ___________________ hereby sell(s), assign(s)
and transfer(s) unto__________________________________
                                     (Please insert social security or other
                                     taxpayer identification number of
                                     assignee.)

the within security and hereby irrevocably constitutes and appoints
______________ attorney to transfer the said security on the books of the
Company, with full power of substitution in the premises.

In connection with any transfer of the within security occurring prior to the
Transfer Restriction Termination Date, the undersigned confirms that such
security is being transferred:

         [ ]      To The AES Corporation or a subsidiary thereof; or

         [ ]      Pursuant to and in compliance with Rule 144A under the
                  Securities Act of 1933, as amended; or

         [ ]      Pursuant to and in compliance with Rule 144 under the
                  Securities Act of 1933, as amended;

and unless the box below is checked, the undersigned confirms that such
security is not being transferred to an "affiliate" of the Company as defined
in Rule 144 under the Securities Act of 1933, as amended (an "Affiliate"):

         [ ]      The transferee is an Affiliate of the Company.

Dated:  __________________________

Number of Securities
to be Assigned: ___________________

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

--------------------------
 Signature(s)

                                      10
<PAGE>

                                            Signature(s) must be guaranteed by
                                            a commercial bank or trust company
                                            or a member firm of a major stock
                                            exchange.

                                         ---------------------------------
                                            Signature Guarantee

NOTICE: The above signatures of the holder(s) hereof must correspond with the
name as written upon the face of this Security in every particular without
alteration or enlargement or any change whatever.

                                      11
<PAGE>

                                                                      EXHIBIT C

                                    TERMS OF
                               COMMON SECURITIES

     Pursuant to Section 7.01 of the Amended and Restated Declaration of Trust
of AES Trust VII dated as of May 17, 2000 (as amended from time to time, the
"Declaration"), the designations, rights, privileges, restrictions, preferences
and other terms and provisions of the Common Securities are set forth below
(each capitalized term used but not defined herein having the meaning set forth
in the Declaration):

     1. Designation and Number. Common Securities of the Trust with an
aggregate liquidation amount in the assets of the Trust of Twelve Million Three
Hundred Seventy One Thousand One Hundred and Fifty Dollars ($12,371,150) (plus
up to an additional One Million Eight Hundred Fifty Five Thousand Six Hundred
and Fifty Dollars ($1,855,650) issuable upon exercise of the overallotment
option set forth in the Purchase Agreement) and a liquidation amount in the
assets of the Trust of $50 per Common Security, are hereby designated as "6%
Common Trust Securities". The Common Security Certificates evidencing the
Common Securities shall be substantially in the form attached hereto as Annex
I, with such changes and additions thereto or deletions therefrom as may be
required by ordinary usage, custom or practice. The Common Securities are to be
issued and sold to The AES Corporation ("AES") in consideration of $12,371,150
(plus up to an additional $1,855,650 pursuant to any exercise of the
overallotment option) in cash. In connection with the issuance and sale of the
Preferred Securities and the Common Securities, the Trust will purchase as
trust assets Debentures of AES having an aggregate principal amount equal to
the aggregate liquidation amount of the Preferred Securities and Common
Securities so issued, and bearing interest at an annual rate equal to the
annual Distribution rate on the Preferred Securities and Common Securities and
having payment and redemption provisions which correspond to the payment and
redemption provisions of the Preferred Securities and Common Securities.

     2. Distributions. (a) Distributions payable on each Common Security will
be fixed at a rate per annum of 6% (the "Coupon Rate") of the stated
liquidation amount of $50 per Common Security. Distributions in arrears for
more than one calender quarter will bear interest at the rate per annum of 6%
thereof (to the extent permitted by applicable law), compounded quarterly. The
term "Distributions" as used in these terms means such periodic cash
distributions and any such interest payable unless otherwise stated. A
Distribution

<PAGE>

will be made by the Property Trustee only to the extent that interest payments
are made in respect of the Debentures held by the Property Trustee. The amount
of Distributions payable for any period will be computed for any monthly
Distribution period on the basis of a 360-day year of twelve 30 day months.

     (b) Distributions on the Common Securities will be cumulative, will accrue
from May 17, 2000 and will be payable quarterly in arrears, on February 15, May
15, August 15, and November 15 of each year commencing on August 15, 2000,
except as otherwise described below, but only if and to the extent that
interest payments are made in respect of the Debentures held by the Property
Trustee. So long as AES shall not be in default in the payment of interest on
the Debentures, AES has the right under the Indenture for the Debentures to
defer payments of interest by extending the interest payment period from time
to time on the Debentures for a period not exceeding 20 consecutive quarterly
interest periods (each, an "Extension Period") and, as a consequence, quarterly
Distributions will continue to accrue with interest thereon (to the extent
permitted by applicable law) at the rate of 6% per annum, compounded quarterly
during any such Extension Period; provided that no Extension Period shall last
beyond the date of maturity or any redemption date of the Debentures. Prior to
the termination of any such Extension Period, AES may further extend such
Extension Period; provided that such Extension Period together with all such
previous and further extensions thereof may not exceed 20 consecutive quarterly
interest periods. Upon the termination of any Extension Period and the payment
of all amounts then due, AES may commence a new Extension Period, subject to
the above requirements. Payments of accrued Distributions will be payable to
Holders of Common Securities as they appear on the books and records of the
Trust on the first record date after the end of the Extension Period.

     (c) Distributions on the Common Securities will be payable promptly by the
Property Trustee (or other Paying Agent) upon receipt of immediately available
funds to the Holders thereof as they appear on the books and records of the
Trust on the relevant record dates which will be one business day prior to the
relevant Distribution date unless the Preferred Securities are no longer in
book-entry only form in which event the Regular Trustees shall have the right
to select relevant record dates which shall be more than one business day prior
to the relevant payment dates. Distributions payable on any Common Securities
that are not punctually paid on any Distribution date as a result of AES having
failed to make the corresponding interest payment on the Debentures will
forthwith cease to be payable to the person in whose name such Common Security
is registered on the relevant record date, and such defaulted Distribution will
instead be payable to the person in whose name such Common Security is
registered on the special record date established by the Regular Trustees,
which record date shall correspond to the special record date or other
specified date determined in

                                       2
<PAGE>

accordance with the Indenture; provided, however, that Distributions shall not
be considered payable on any Distribution payment date falling within an
Extension Period unless AES has elected to make a full or partial payment of
interest accrued on the Debentures on such Distribution payment date. Subject
to any applicable laws and regulations and the provisions of the Declaration,
each payment in respect of the Common Securities will be made as described in
paragraph 10 hereof. If any date on which Distributions are payable on the
Common Securities is not a Business Day, then payment of the Distribution
payable on such date will be made on the next succeeding day that is a Business
Day (and without any interest or other payment in respect of any such delay)
except that, if such Business Day is in the next succeeding calendar year, such
payment shall be made on the immediately preceding Business Day, in each case
with the same force and effect as if made on such date.

     (d) All Distributions paid with respect to the Common Securities and the
Preferred Securities will be paid Pro Rata to the Holders thereof entitled
thereto. If an Event of Default has occurred and is continuing, the Preferred
Securities shall have a priority over the Common Securities with respect to
Distributions.

     (e) In the event of an election by the Holder to convert its Securities
through the Conversion Agent into Common Stock pursuant to the terms of the
Securities as set forth in this Exhibit C to the Declaration, no payment,
allowance or adjustment shall be made with respect to accumulated and unpaid
Distributions on such Securities, or be required to be made; provided, however,
that if a Security is surrendered for conversion after the close of business on
any regular record date for payment of a Distribution date will be paid in cash
to the person in whose name the Security is registered at the close of business
on such record date, and (other than a Security or a portion of a Security
called for redemption on a redemption date occurring after such record date and
prior to such Distribution date) when so surrendered for conversion, the
Security must be accompanied by payment of an amount equal to the Distribution
payable on such Distribution date.

     (f) In the event that there is any money or other property held by or for
the Trust that is not accounted for under the Declaration, such money or
property shall be distributed Pro Rata among the Holders of the Preferred
Securities and Common Securities.

     3. Liquidation Distribution Upon Dissolution. In the event of any
voluntary or involuntary dissolution of the Trust, the Holders of the Preferred
Securities and Common Securities at the date of the dissolution will be
entitled to receive Pro Rata solely out of the assets of the Trust available
for distribution to Holders of Preferred Securities and Common Securities,
after satisfaction of liabilities to creditors, an amount equal to the
aggregate of the stated liquidation

                                       3
<PAGE>

amount of $50 per Preferred Security and Common Security plus accrued and
unpaid Distributions thereon to the date of payment (such amount being the
"Liquidation Distribution"), unless, in connection with such dissolution and
after satisfaction of liabilities to creditors, Debentures in an aggregate
principal amount equal to the aggregate stated liquidation amount of such
Preferred Securities and Common Securities bearing accrued and unpaid interest
in an amount equal to the accrued and unpaid Distributions on, such Preferred
Securities and Common Securities, shall be distributed Pro Rata to the Holders
of the Preferred Securities and Common Securities in exchange for such
Securities.

     If, upon any such dissolution, the Liquidation Distribution can be paid
only in part because the Trust has insufficient assets available to pay in full
the aggregate Liquidation Distribution, then the amounts payable directly by
the Trust on the Preferred Securities and Common Securities shall be paid,
subject to the next paragraph, on a Pro Rata basis.

     Holders of Common Securities will be entitled to receive Liquidation
Distributions upon any such dissolution Pro Rata with Holders of Preferred
Securities, except that if an Event of Default has occurred and is continuing,
the Preferred Securities shall have a priority over the Common Securities with
respect to such Liquidation Distribution.

     4. Redemption and Distribution of Debentures. The Preferred Securities and
Common Securities may only be redeemed if Debentures having an aggregate
principal amount equal to the aggregate liquidation amount of the Preferred
Securities and Common Securities are repaid, redeemed or distributed as set
forth below:

     (a) Upon the repayment of the Debentures, in whole or in part, whether at
maturity, upon redemption at any time or from time to time on or after May 19,
2003, or at any time in certain circumstances upon the occurrence of a Tax
Event, the proceeds of such repayment will be promptly applied to redeem Pro
Rata Preferred Securities and Common Securities having an aggregate liquidation
amount equal to the aggregate principal amount of the Debentures so repaid or
redeemed, upon not less than 30 nor more than 60 days' notice, at a redemption
price per Preferred and Common Security equal to the redemption price of the
Debentures, together with accrued and unpaid Distributions thereon through the
date of redemption, payable in cash. The date of any such repayment or
redemption of Preferred Securities and Common Securities shall be established
to coincide with the repayment or redemption date of the Debentures.

     (b) If fewer than all the outstanding Preferred Securities and Common
Securities are to be so redeemed, the Preferred Securities and the Common

                                       4
<PAGE>

Securities will be redeemed Pro Rata and the Common Securities to be redeemed
will be redeemed as described in paragraph 4(e)(ii) below. If a partial
redemption would result in the delisting of the Preferred Securities by any
national securities exchange or other organization on which the Preferred
Securities are then listed, AES pursuant to the Indenture will only redeem
Debentures in whole and, as a result, the Trust may only redeem the Common
Securities in whole.

     (c) If, at any time, a Tax Event or an Investment Company Event (each as
hereinafter defined, and each a "Special Event") shall occur and be continuing,
the Regular Trustees shall, unless the Debentures are redeemed in the limited
circumstances described below, dissolve the Trust and, after satisfaction of
creditors, cause Debentures held by the Property Trustee having an aggregate
principal amount equal to the aggregate stated liquidation amount of and
accrued and unpaid interest equal to accrued and unpaid Distributions on, and
having the same record date for payment as the Preferred Securities and Common
Securities, to be distributed to the Holders of the Preferred Securities and
Common Securities on a Pro Rata basis in liquidation of such Holders' interests
in the Trust, within 90 days following the occurrence of such Special Event
(the "90 Day Period"); provided, however, that in the case of the occurrence of
a Tax Event, as a condition of such dissolution and distribution, the Regular
Trustees shall have received an opinion of a nationally recognized independent
tax counsel experienced in such matters (a "No Recognition Opinion"), which
opinion may rely on any then applicable published revenue rulings of the
Internal Revenue Service, to the effect that the Holders of the Preferred
Securities will not recognize any gain or loss for United States federal income
tax purposes as a result of the dissolution of the Trust and distribution of
Debentures; and provided, further, that, if and as long as at the time there is
available to the Trust the opportunity to eliminate, within such 90 Day Period,
the Special Event by taking some ministerial action, such as filing a form or
making an election, or pursuing some other similar reasonable measure that has
no adverse effect on the Trust, AES or the Holders of the Preferred Securities
("Ministerial Action") the Trust will pursue such measure in lieu of
dissolution.

     If in the case of the occurrence of a Tax Event, (i) the Regular Trustees
have received an opinion (a "Redemption Tax Opinion") of nationally recognized
independent tax counsel experienced in such matters that, as a result of a Tax
Event, there is more than an insubstantial risk that AES would be precluded
from deducting the interest on the Debentures for United States federal income
tax purposes even if the Debentures were distributed to the Holders of
Preferred Securities and Common Securities in liquidation of such Holder's
interest in the Trust as described in this paragraph 4(c) or (ii) the Regular
Trustees shall have been informed by such tax counsel that a No Recognition
Opinion cannot be delivered to the Trust, AES shall have the right at any time,
upon not less than 30

                                       5
<PAGE>

nor more than 60 days' notice, to redeem the Debentures in whole or in part for
cash at the redemption price within 90 days following the occurrence of such
Tax Event, and promptly following such redemption Preferred Securities and
Common Securities with an aggregate liquidation amount equal to the aggregate
principal amount of the Debentures so redeemed will be redeemed by the Trust at
the redemption price on a pro rata basis: provided, however, that, if at the
time there is available to AES or the Regular Trustees on behalf of the Trust
the opportunity to eliminate, within such 90 day period, the Tax Event by
taking some Ministerial Action, AES or the Holders of the Preferred Securities,
AES or the Regular Trustees on behalf of the Trust will pursue such measure in
lieu of redemption; and provided, further, that AES shall have no right to
redeem the Debentures while the Regular Trustees on behalf of the Trust are
pursuing such Ministerial Action. The Common Securities will be redeemed Pro
Rata with the Preferred Securities, except that if an Event of Default under
the Indenture has occurred and is continuing, the Preferred Securities will
have a priority over the Common Securities with respect to payment of the
redemption price.

     "Tax Event" means that the Regular Trustees shall have obtained an opinion
of nationally recognized independent tax counsel experienced in such matters (a
"Dissolution Tax Opinion") to the effect that on or after May 11, 2000 as a
result of (a) any amendment to, or change (including any announced prospective
change) in, the laws (or any regulations thereunder) of the United States or
any political subdivision or taxing authority thereof or therein, (b) any
amendment to, or change in, an interpretation or application of any such laws
or regulations by any legislative body, court, governmental agency or
regulatory authority (including the enactment of any legislation and the
publication of any judicial decision or regulatory determination), (c) any
interpretation or pronouncement that provides for a position with respect to
such laws or regulations that differs from the theretofore generally accepted
position or (d) any action taken by any governmental agency or regulatory
authority, which amendment or change is enacted, promulgated, issued or
announced or which interpretation or pronouncement is issued or announced or
which action is taken, in each case on or after May 11, 2000, there is more
than an insubstantial risk that (i) the Trust is, or will be within 90 days of
the date thereof, subject to United States federal income tax with respect to
income accrued or received on the Debentures, (ii) the Trust is, or will be
within 90 days of the date thereof, subject to more than a de minimis amount of
taxes, duties or other governmental charges or (iii) interest payable by AES to
the Trust on the Debentures is not, or within 90 days of the date thereof will
not be, deductible by AES for United States federal income tax purposes.

     "Investment Company Event" means that the Regular Trustees shall have
received an opinion of nationally recognized independent counsel

                                       6
<PAGE>

experienced in practice under the Investment Company Act that, as a result of
the occurrence of a change in law or regulation or a change in interpretation
or application of law or regulation by any legislative body, court,
governmental agency or regulatory authority (a "Change in 1940 Act Law"), there
is more than an insubstantial risk that the Trust is or will be considered an
Investment Company which is required to be registered under the Investment
Company Act, which Change in 1940 Act Law becomes effective on or after May 11,
2000.

     On the date fixed for any distribution of Debentures, upon dissolution of
the Trust, (i) the Common Securities will no longer be deemed to be outstanding
and (ii) any certificates representing Common Securities will be deemed to
represent beneficial interests in the Debentures having an aggregate principal
amount equal to the stated liquidation amount of, and bearing accrued and
unpaid interest equal to accrued and unpaid Distributions on, such Common
Securities until such certificates are presented to AES or its agent for
transfer or reissuance.

     (d) The Trust may not redeem any outstanding Common Securities unless all
accrued and unpaid Distributions have been paid on all Common Securities for
all quarterly Distribution periods terminating on or prior to the date of
redemption.

     (e)(i) Notice of any redemption of, or notice of distribution of
Debentures in exchange for, the Preferred Securities and Common Securities (a
"Redemption/ Distribution Notice") will be given by the Regular Trustees on
behalf of the Trust by mail to each Holder of Preferred Securities and Common
Securities to be redeemed or exchanged not less than 30 nor more than 60 days
prior to the date fixed for redemption or exchange thereof. For purposes of the
calculation of the date of redemption or exchange and the dates on which
notices are given pursuant to this paragraph (e)(i), a Redemption/Distribution
Notice shall be deemed to be given on the day such notice is first mailed by
first-class mail, postage prepaid, to Holders of Preferred Securities and
Common Securities. Each Redemption/Distribution Notice shall be addressed to
the Holders of Preferred Securities and Common Securities at the address of
each such Holder appearing in the books and records of the Trust. No defect in
the Redemption/Distribution Notice or in the mailing of either thereof with
respect to any Holder shall affect the validity of the redemption or exchange
proceedings with respect to any other Holder.

     (ii) In the event that fewer than all the outstanding Common Securities
are to be redeemed, the Common Securities to be redeemed will be redeemed Pro
Rata from each Holder of Common Securities (subject to adjustment to eliminate
fractional Common Securities).

                                       7
<PAGE>

     (iii) If the Trust gives a Redemption/Distribution Notice in respect of a
redemption of Common Securities as provided in this paragraph 4 (which notice
will be irrevocable) then immediately prior to the close of business on the
redemption date, provided that AES has paid to the Property Trustee in
immediately available funds a sufficient amount of cash in connection with the
related redemption or maturity of the Debentures, Distributions will cease to
accrue on the Common Securities called for redemption, such Common Securities
will no longer be deemed to be outstanding and all rights of Holders of such
Common Securities so called for redemption will cease, except the right of the
Holders of such Common Securities to receive the redemption price, but without
interest on such redemption price. Neither the Trustees nor the Trust shall be
required to register or cause to be registered the transfer of any Common
Securities which have been so called for redemption. If any date fixed for
redemption of Common Securities is not a Business Day, then payment of the
redemption price payable on such date will be made on the next succeeding day
that is a Business Day (and without any interest or other payment in respect of
any such delay) except that, if such Business Day falls in the next calendar
year, such payment will be made on the immediately preceding Business Day, in
each case with the same force and effect as if made on such date fixed for
redemption. If payment of the redemption price in respect of Common Securities
is improperly withheld or refused and not paid by the Property Trustee,
Distributions on such Common Securities will continue to accrue, from the
original redemption date to the date of payment, in which case the actual
payment date will be considered the date fixed for redemption for purposes of
calculating the redemption price.

     (iv) Redemption/Distribution Notices shall be sent by the Regular Trustees
on behalf of the Trust to the Holders of the Common Securities.

     (v) Upon the date of dissolution of the Trust and distribution of
Debentures as a result of the occurrence of a Special Event, Common Security
Certificates shall be deemed to represent beneficial interests in the
Debentures so distributed, and the Common Securities will no longer be deemed
outstanding and may be canceled by the Regular Trustees. The Debentures so
distributed shall have an aggregate principal amount equal to the aggregate
liquidation amount of the Common Securities so distributed.

     5. Conversion Rights. The Holders of Securities shall have the right at
any time prior to the close of business on May 14, 2008 (or, in the case of
Securities called for redemption, prior to the close of business on the
Business Day prior to the redemption date), at their option, to cause the
Conversion Agent to convert Securities, on behalf of the converting Holders,
into shares of Common Stock in the manner described herein on and subject to
the following terms and conditions:

                                       8
<PAGE>

     The Securities will be convertible at the office of the Conversion Agent
into fully paid and nonassessable shares of Common Stock pursuant to the
Holder's direction to the Conversion Agent to exchange such Securities for a
portion of the Debentures theretofore held by the Trust on the basis of one
Security per $50 principal amount of Debentures, and immediately convert such
amount of Debentures into fully paid and nonassessable shares of Common Stock
at an initial rate of 1.0811 shares of Common Stock per $50 principal amount of
Debentures (which is equivalent to a conversion price of $46.25 per share of
Common Stock, subject to certain adjustments set forth in Sections 5.03 and
5.04 of the Supplemental Indenture, but without adjusting to give effect to the
stock dividend payable on June 1, 2000 (as so adjusted, "Conversion Price")).

     (a) In order to convert Securities into Common Stock the Holder shall
submit to the Conversion Agent at the office referred to above an irrevocable
request to convert Securities on behalf of such Holder (the "Conversion
Request"), together, if the Securities are in certificated form, with such
certificates. The Conversion Request shall (i) set forth the number of
Securities to be converted and the name or names, if other than the Holder, in
which the shares of Common Stock should be issued and (ii) direct the
Conversion Agent (a) to exchange such Securities for a portion of the
Debentures held by the Trust (at the rate of exchange specified in the
preceding paragraph) and (b) to immediately convert such Debentures on behalf
of such Holder, into Common Stock (at the conversion rate specified in the
preceding paragraph). The Conversion Agent shall notify the Property Trustee of
the Holder's election to exchange Securities for a portion of the Debentures
held by the Trust and the Property Trustee shall, upon receipt of such notice,
deliver to the Conversion Agent the appropriate principal amount of Debentures
for exchange in accordance with this Section. The Conversion Agent shall
thereupon notify the Property Trustee of the Holder's election to convert such
Debentures into shares of Common Stock. If a Security is surrendered for
conversion after the close of business on any regular record date for payment
of a Distribution and before the opening of business on the corresponding
Distribution payment date, then, notwithstanding such conversion, the
Distribution payable on such Distribution payment date will be paid in cash to
the person in whose name the Security is registered at the close of business on
such record date, and (other than a Security or a portion of a Security called
for redemption on a redemption date occurring after such record date and prior
to such Distribution payment date) when so surrendered for conversion, the
Security must be accompanied by payment of an amount equal to the Distribution
payable on such Distribution payment date. Except as provided above, neither
the Trust nor the Sponsor will make, or be required to make, any payment,
allowance or adjustment upon any conversion on account of any accumulated and
unpaid Distributions accumulated on the Securities surrendered for conversion,
or on account of any accumulated and unpaid dividends on the shares of Common
Stock

                                       9
<PAGE>

issued upon such conversion. Securities shall be deemed to have been converted
immediately prior to the close of business on the day on which a Conversion
Request relating to such Securities is received by the Trust in accordance with
the foregoing provision (the "Conversion Date"). The Person or Persons entitled
to receive Common Stock issuable upon conversion of the Debentures shall be
treated for all purposes as the record holder or holders of such Common Stock
at such time. As promptly as practicable on or after the Conversion Date, the
Sponsor shall issue and deliver at the office of the Conversion Agent a
certificate or certificates for the number of full shares of Common Stock
issuable upon such conversion, together with the cash payment, if any, in lieu
of any fraction of any share to the Person or Persons entitled to receive the
same, unless otherwise directed by the Holder in the Conversion Request and the
Conversion Agent shall distribute such certificate or certificates, together
with the applicable cash payment, if any, to such Person or Persons.

     (b) Each Holder of a Security by his acceptance thereof appoints the Trust
"Conversion Agent" for the purpose of effecting the conversion of Securities in
accordance with this Section. In effecting the conversion and transactions
described in this Section, the Conversion Agent shall be acting as agent of the
Holders of Securities directing it to effect such conversion transactions. The
Conversion Agent is hereby authorized (i) to exchange Securities from time to
time for Debentures held by the Trust in connection with the conversion of such
Securities in accordance with this section and (ii) to convert all or a portion
of the Debentures into Common Stock and thereupon to deliver such shares of
Common Stock in accordance with the provisions of this section and to deliver
to the Trust a new Debenture or Debentures for any resulting unconverted
principal amount.

     (c) No fractional shares of Common Stock will be issued as a result of
conversion, but in lieu thereof, such fractional interest will be paid in cash
by the Company to the Conversion Agent, which in turn will make such payment to
the Holder or Holders of Securities so converted.

     (d) The Sponsor shall at all times reserve and keep available out of its
authorized and unissued Common Stock, solely for issuance upon the conversion
of the Debentures, free from any preemptive or other similar rights, such
number of shares of Common Stock as shall from time to time be issuable upon
the conversion of all the Debentures then outstanding. Notwithstanding the
foregoing, shall be entitled to deliver upon conversion of Debentures, shares
of Common Stock reacquired and held in the treasury of the Sponsor (in lieu of
the issuance of authorized and unissued shares of Common Stock), so long as any
such treasury shares are free and clear of all liens, charges, security
interests or encumbrances. Any shares of Common Stock issued upon conversion of
the

                                      10
<PAGE>

Debentures shall be duly authorized, validly issued and fully paid and
nonassessable. The Trust shall deliver the shares of Common Stock received upon
conversion of the Debentures to the converting Holder free and clear of all
liens, charges, security interests and encumbrances, except for United States
withholding taxes. Each of the Sponsor and the Trust shall prepare and shall
use its best efforts to obtain and keep in force such governmental or
regulatory permits or other authorizations as may be required by law, and shall
comply with all applicable requirements as to registration or qualification of
Common Stock (and all requirements to list Common Stock issuable upon
conversion of Debentures that are at the time applicable), in order to enable
the company to lawfully issue Common Stock to the Trust upon conversion of the
Debentures and the Trust to lawfully deliver Common Stock to each Holder upon
conversion of the Securities.

     (e) The Sponsor will pay any and all taxes that may be payable in respect
of the issue or delivery of shares of Common Stock on conversion of Debentures
and the delivery of the shares of Common Stock by the Trust upon conversion of
the Securities. The Sponsor shall not, however, be required to pay any tax
which may be payable in respect of any transfer involved in the issue and
delivery of shares of Common Stock in a name other than that in which the
Securities so converted were registered, and no such issue or delivery shall be
made unless and until the person requesting such issue has paid to the Trust
the amount of any such tax, or has established to the satisfaction of the Trust
that such tax has been paid.

     (f) Nothing in the preceding Paragraph (e) shall limit the requirement of
the Trust to withhold taxes pursuant to the terms of the Securities or set
forth in this Exhibit C to the Declaration or to the Declaration itself or
otherwise require the Property Trustee or the Trust to pay any amounts on
account of such withholdings.

     6. Voting Rights. (a) Except as provided under paragraph 6 (b) below and
as otherwise required by law and the Declaration, the Holders of the Common
Securities will have no voting rights.

     (b) Holders of Common Securities have the sole right under the Declaration
to increase or decrease the number of Trustees, and to appoint, remove or
replace a Trustee, any such increase, decrease, appointment, removal or
replacement to be approved by Holders of Common Securities representing a
Majority in liquidation amount of the Common Securities.

     If any proposed amendment to the Declaration provides for, or the Regular
Trustees otherwise propose to effect, (i) any action that would adversely
affect the powers, preferences or special rights of the Securities, whether by
way of

                                      11
<PAGE>

amendment to the Declaration or otherwise, or (ii) the dissolution, winding-up
or termination of the Trust, other than in connection with the distribution of
Debentures held by the Property Trustee, upon the occurrence of a Special Event
or in connection with the redemption of Common Securities as a consequence of a
redemption of Debentures, then the Holders of outstanding Securities will be
entitled to vote on such amendment or proposal as a class and such amendment or
proposal shall not be effective except with the approval of the Holders of
Securities representing a Majority in liquidation amount of such Securities;
provided, however, that (A) if any amendment or proposal referred to in clause
(i) above would adversely affect only the Preferred Securities or the Common
Securities, then only the affected class will be entitled to vote on such
amendment or proposal and such amendment or proposal shall not be effective
except with the approval of a Majority in liquidation amount of such class of
Securities, (B) the rights of Holders of Common Securities under Article 4.02
of the Declaration to increase or decrease the number of, and to appoint,
replace or remove, Trustees shall not be amended without the consent of each
Holder of Common Securities, and (C) amendments to the Declaration shall be
subject to such further requirements as are set forth in Sections 12.01 and
12.02 of the Declaration.

     In the event the consent of the Property Trustee as the holder of the
Debentures, is required under the Indenture with respect to any amendment,
modification or termination of the Indenture or the Debentures, the Property
Trustee shall request the written direction of the Holders of the Securities
with respect to such amendment, modification or termination. The Property
Trustee shall vote with respect to such amendment, modification or termination
as directed by a Majority in liquidation amount of the Securities voting
together as a single class; provided that where such amendment, modification or
termination of the Indenture requires the consent or vote of (1) holders of
Debentures representing a specified percentage greater than a majority in
principal amount of the Debentures or (2) each holder of Debentures, the
Property Trustee may only vote with respect to that amendment, modification or
termination as directed by, in the case of clause (1) above, the vote of
Holders of Securities representing such specified percentage of the aggregate
liquidation amount of the Securities, or, in the case of clause (2) above, each
Holder of Securities; and provided, further, that the Property Trustee shall be
under no obligation to take any action in accordance with the directions of the
Holders of the Securities unless the Property Trustee shall have received, at
the expense of the Sponsor, an opinion of nationally recognized independent tax
counsel recognized as an expert in such matters to the effect that the Trust
will not be classified for United States federal income tax purposes as an
association taxable as a corporation or a partnership on account of such action
and will be treated as a grantor trust for United States federal income tax
purposes following such action.

                                      12
<PAGE>

     Subject to Section 2.06 of the Declaration, and the provisions of this and
the next succeeding paragraph, the Holders of a Majority in liquidation amount
of the Common Securities, voting separately as a class shall have the right to
(A) on behalf of all Holders of Common Securities, waive any past default that
is waivable under the Declaration (subject to, and in accordance with the
Declaration) and (B) direct the time, method, and place of conducting any
proceeding for any remedy available to the Property Trustee, or exercising any
trust or power conferred upon the Property Trustee under the Declaration,
including the right to direct the Property Trustee, as holder of the
Debentures, to (i) direct the time, method and place of conducting any
proceeding for any remedy available to the Debenture Trustee, or exercising any
trust or power conferred on the Debenture Trustee with respect to the
Debentures, (ii) waive any past default and its consequences that is waivable
under Section 6.06 of the Indenture, or (iii) exercise any right to rescind or
annul a declaration that the principal of all the Debentures shall be due and
payable; provided that where the taking of any action under the Indenture
requires the consent or vote of (1) holders of Debentures representing a
specified percentage greater than a majority in principal amount of the
Debentures or (e) each holder of Debentures, the Property Trustee may only take
such action if directed by, in the case of clause (1) above, the vote of
Holders of Common Securities representing such specified percentage of the
aggregate liquidation amount of the Common Securities, or, in the case of
clause (2) above, each Holder of Common Securities. Pursuant to this paragraph,
the Property Trustee shall not revoke, or take any action inconsistent with,
any action previously authorized or approved by a vote of the Holders of the
Preferred Securities, and shall not take any action in accordance with the
direction of the Holders of the Common Securities under this paragraph if the
action is prejudicial to the Holders of Preferred Securities. Other than with
respect to directing the time, method and place of conducting any proceeding
for any remedy available to the Property Trustee or the Debenture Trustee as
set forth above, the Property Trustee shall be under no obligation to take any
of the foregoing actions at the direction of the Holders of Common Securities
unless the Properties Trustee shall have received, at the expense of the
Sponsor, an opinion of nationally recognized independent tax counsel recognized
as expert in such matters to the effect that the Trust will not be classified
for United States federal income tax purposes as an association taxable as a
corporation or a partnership on account of such action and will be treated as a
grantor trust for United States income tax purposes following such action.

     Notwithstanding any other provision of these terms, each Holder of Common
Securities will be deemed to have waived any Event of Default with respect to
the Common Securities and its consequences until all Events of Default with
respect to the Preferred Securities have been cured, waived by the Holders of
Preferred Securities as provided in the Declaration or otherwise eliminated,
and

                                      13
<PAGE>

until all Events of Default with respect to the Preferred Securities have been
so cured, waived by the Holders of Preferred Securities or otherwise
eliminated, the Property Trustee will be deemed to be acting solely on behalf
of the Holders of Preferred Securities and only the Holders of the Preferred
Securities will have the right to direct the Property Trustee in accordance
with the terms of the Declaration or of the Securities. In the event that any
Event of Default with respect to the Preferred Securities is waived by the
Holders of Preferred Securities as provided in the Declaration, the Holders of
Common Securities agree that such waiver shall also constitute the waiver of
such Event of Default with respect to the Common Securities for all purposes
under the Declaration without any further act, vote or consent of the Holders
of the Common Securities.

     A waiver of an Indenture Event of Default by the Property Trustee at the
direction of the Holders of the Preferred Securities will constitute a waiver
of the corresponding Event of Default under the Declaration in respect of the
Securities.

     Any required approval of Holders of Common Securities may be given at a
separate meeting of Holders of Common Securities convened for such purpose, at
a meeting of all of the Holders of Securities of the Trust or pursuant to
written consent. The Regular Trustees will cause a notice of any meeting at
which Holders of Common Securities are entitled to vote, to be mailed to each
Holder of record of Common Securities. Each such notice will include a
statement setting forth (i) the date of such meeting, (ii) a description of any
resolution proposed for adoption at such meeting on which such Holders are
entitled to vote and (iii) instructions for the delivery of proxies.

     No vote or consent of the Holders of Common Securities will be required
for the Trust to redeem and cancel Common Securities in accordance with the
Declaration.

     7. Pro Rata Treatment. A reference in these terms of the Common Securities
to any payment, distribution or treatment as being "Pro Rata" shall mean pro
rata to each Holder of Securities according to the aggregate liquidation amount
of the Securities held by the relevant Holder in relation to the aggregate
liquidation amount of all Securities outstanding unless, in relation to a
payment, an Event of Default has occurred and is continuing, in which case any
funds available to make such payment shall be paid first to each Holder of the
Preferred Securities pro rata according to the aggregate liquidation amount of
Preferred Securities held by the relevant Holder relative to the aggregate
liquidation amount of all Preferred Securities outstanding, and only after
satisfaction of all amounts owed to the Holders of the Preferred Securities, to
each Holder of Common Securities pro rata according to the aggregate
liquidation amount of Common

                                      14
<PAGE>

Securities held by the relevant Holder relative to the aggregate liquidation
amount of all Common Securities outstanding.

     8. Ranking. The Common Securities rank pari passu and payment thereon will
be made Pro Rata with the Preferred Securities except that where an Event of
Default occurs and is continuing, the rights of Holders of Common Securities to
payment in respect of Distributions and payments upon liquidation, redemption
or otherwise are subordinate to the rights of Holders of the Preferred
Securities.

     9. Mergers, Consolidations or Amalgamations. Except pursuant to Section 3
hereof, the Trust may not consolidate, amalgamate, merge with or into, or be
replaced by, or convey, transfer or lease its properties and assets to, any
corporation or other body.

     10. Transfers, Exchanges, Method of Payments. Payment of Distributions and
payments on redemption of the Common Securities will be payable, the transfer
of the Common Securities will be registrable, and Common Securities will be
exchangeable for Common Securities of other denominations of a like aggregate
liquidation amount, at the principal corporate trust office of the Property
Trustee in The City of New York; provided that payment of Distributions may be
made at the option of the Regular Trustees on behalf of the Trust by check
mailed to the address of the persons entitled thereto and that the payment on
redemption of any Common Security will be made only upon surrender of such
Common Security to the Property Trustee. Notwithstanding the foregoing,
transfers of Common Securities are subject to conditions set forth in Section
9.01(c) of the Declaration.

     11. Acceptance of Indenture. Each Holder of Common Securities, by the
acceptance thereof, agrees to the provisions of the Indenture and the
Debentures, including the subordination provisions thereof.

     12. No Preemptive Rights. The Holders of Common Securities shall have no
preemptive rights to subscribe to any additional Common Securities or Preferred
Securities.

     13. Miscellaneous. These terms shall constitute a part of the Declaration.
The Trust will provide a copy of the Declaration and the Indenture to a Holder
without charge on written request to the Trust at its principal place of
business.

                                      15
<PAGE>

                                                                        Annex I

                      FORM OF COMMON SECURITY CERTIFICATE

                         TRANSFER OF THIS CERTIFICATE

                         IS SUBJECT TO THE CONDITIONS

                         SET FORTH IN THE DECLARATION

                               REFERRED TO BELOW

         Certificate Number                 Number of Common Securities

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

                    Certificate Evidencing Common Securities

                                       of

                                 AES Trust VII

                           6% Common Trust Securities

                  (liquidation amount $50 per Common Security)

<PAGE>

     AES Trust VII, a statutory business trust formed under the laws of the
State of Delaware (the "Trust"), hereby certifies that The AES Corporation (the
"Holder") is the registered owner of ____________________________ (_________)
common securities of the Trust representing undivided beneficial interests in
the assets of the Trust designated the "6% Common Trust Securities"
(liquidation amount $50 per security) (the "Common Securities"). The Common
Securities are transferable on the books and records of the Trust, in person or
by a duly authorized attorney, upon surrender of this certificate duly endorsed
and in proper form for transfer and satisfaction of the other conditions set
forth in the Declaration (as defined below) including, without limitation
Section 9.01(c) thereof. The designations, rights, privileges, restrictions,
preferences and other terms and provisions of the Common Securities are set
forth in, and this certificate and the Common Securities represented hereby are
issued and shall in all respects be subject to the terms and provisions of, the
Amended and Restated Declaration of Trust of the Trust dated as of May 17,
2000, as the same may be amended from time to time (the "Declaration")
including the designation of the terms of Common Securities as set forth in
Exhibit C thereto. The Common Securities and the Preferred Securities issued by
the Trust pursuant to the Declaration represent undivided beneficial interests
in the assets of the Trust, including the Debentures (as defined in the
Declaration) issued by The AES Corporation, a Delaware corporation, to the
Trust pursuant to the Indenture referred to in the Declaration. The Trust will
furnish a copy of the Declaration and the Indenture to the Holder without
charge upon written request to the Trust at its principal place of business or
registered office.

     The Holder of this Certificate, by accepting this Certificate, is deemed
to have agreed to the terms of the Indenture and the Debentures, including that
the Debentures are subordinate and junior in right of payment to all Senior
Debt (as defined in the Indenture) as and to the extent provided in the
Indenture.

     Upon receipt of this certificate, the Holder is bound by the Declaration
and is entitled to the benefits thereunder.

                                       2
<PAGE>

     IN WITNESS WHEREOF, the Trustees of the Trust have executed this
certificate this seventeenth day of May, 2000

                                    AES TRUST VII

                                    By ________________________, as Trustee
                                       Name:
                                       Title: Trustee

                                    By _________________________, as Trustee
                                       Name:
                                       Title: Trustee

Dated:

Countersigned and Registered:

BANK ONE, NATIONAL ASSOCIATION
 Transfer Agent and Registrar

By:___________________________
Authorized Signature

<PAGE>

                         [FORM OF REVERSE OF SECURITY]

     Distributions payable on each Common Security will be fixed at a rate per
annum of 6% (the "Coupon Rate") of the stated liquidation amount of $50 per
Common Security, such rate being the rate of interest payable on the Debentures
to be held by the Property Trustee. Distributions in arrears for more than one
quarter will bear interest thereon at the rate per annum of 6% thereof (to the
extent permitted by law) compounded monthly. The term "Distributions" as used
herein means such cash distributions and any such interest payable unless
otherwise stated. A Distribution is payable only to the extent that payments
are made in respect of the Debentures held by the Property Trustee. The amount
of Distributions payable for any period will be computed on the basis of a
360-day year of twelve 30-day months.

     Except as otherwise described below, distributions on the Common
Securities will be cumulative, will accrue from May 17, 2000 and will be
payable on February 15, May 15, August 15 and November 15 of each year,
commencing on August 15, 2000, but only if and to the extent that interest
payments are made in respect of the Debentures held by the Property Trustee. So
long as AES shall not be in default in the payment of interest on the
Debentures, AES has the right under the Indenture for the Debentures to defer
payments of interest by extending the interest payment period from time to time
on the Debentures for a period not exceeding 20 consecutive quarters (each an
"Extension Period") and, as a consequence, quarterly Distributions will
continue to accrue with interest thereon (to the extent permitted by applicable
law) at the rate of 6% per annum, compounded quarterly during such Extension
period; provided that no Extension Period shall last beyond the date of
maturity or any redemption date of the Debentures. Prior to the termination of
any such Extension Period, AES may commence a new Extension Period; provided
that such Extension Period together with all such previous and further
extensions thereof may not exceed 20 consecutive quarterly interest periods.
Payments of accrued Distributions will be payable to Holders as they appear on
the books and records of the Trust on the first record date after the end of
the Extension Period. Upon the termination of any Extension Period and the
payment of all amounts then due, AES may commence a new Extension Period,
subject to the above requirements.

     The Common Securities shall be redeemable as provided in the Declaration.

     The Common Securities shall be convertible into shares of Common Stock,
through (i) the exchange of Common Securities for a portion of the Debentures
and (ii) the immediate conversion of such Debentures into Common Stock, in the
manner and according to the terms set forth in the Declaration.

                                       4
<PAGE>

                               CONVERSION REQUEST

To:  Bank One, National Association
     as Property Trustee of AES Trust VII

     The undersigned owner of these Common Securities hereby irrevocably
exercises the option to convert these Common Securities, or the portion below
designated, into Common Stock of The AES Corporation (the "Common Stock") in
accordance with the terms of the Amended and Restated Declaration of Trust
dated as of May 17, 2000 (as amended from time to time, the "Declaration"), by
William R. Luraschi, John Ruggirello and Willard C. Hoagland, III, as Regular
Trustees, First Chicago Delaware Inc., as Delaware Trustee, Bank One, National
Association, as Property Trustee, The AES Corporation, as Sponsor, and by the
Holders, from time to time, of undivided beneficial interests in the assets of
the Trust to be issued pursuant to the Declaration. Pursuant to the
aforementioned exercise of the option to convert these Common Securities, the
undersigned hereby directs the Conversion Agent (as that term is defined in the
Declaration) to (i) exchange such Common Securities for a portion of the
Debentures (as that term is defined in the Declaration) held by the Trust (at
the rate of exchange specified in the terms of the Common Securities set forth
as Exhibit C to the Declaration) and (ii) immediately convert such Debentures
on behalf of the undersigned, into Common Stock (at the conversion rate
specified in the terms of the Common Securities set forth as Exhibit C to the
Declaration).

     The undersigned does also hereby direct the Conversion Agent that the
shares issuable and deliverable upon conversion, together with any check in
payment for fractional shares, be issued in the name of and delivered to the
undersigned, unless a different name has been indicated in the assignment
below. If shares are to be issued in the name of a person other than the
undersigned, the undersigned will pay all transfer taxes payable with respect
thereto.

                                       5
<PAGE>

Date:  _____________, _____
in whole ___      in part ___
                                         Number of Common
                                         Securities to be
                                         converted: _______________

                                         If a name or names other
                                         than the undersigned,
                                         please indicate in the
                                         spaces below the name or
                                         names in which the shares
                                         of Common Stock are to be
                                         issued, along with the
                                         address or addresses of
                                         such person or persons
                                         ------------------------------

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

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

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

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

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

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

                                         Signature (for conversion only)

                                         Please Print or Typewrite Name and
                                         Address, Including Zip Code, and
                                         Social Security or Other Identifying
                                         Number

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

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

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

                                       6
<PAGE>

                                                     Signature Guarantee:*
-------------
                                  ASSIGNMENT

FOR VALUE RECEIVED, the undersigned assigns and transfers this Common Security
Certificate to:

------------------------------------------------------------
------------------------------------------------------------
------------------------------------------------------------
(Insert assignee's social security or tax identification number)

------------------------------------------------------------
------------------------------------------------------------
------------------------------------------------------------
(Insert address and zip code of assignee)

and irrevocably appoints

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

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

_____________________________________________________ agent to
transfer this Common Security Certificate on the books of the Trust.  The agent
may substitute another to act for him or her.

Date: ________________________

Signature: _________________________________
(Sign exactly as your name appears on the other side of this Common Security
Certificate)

--------
*(Signature must be guaranteed by an "eligible guarantor institution" that is,
a bank, stockbroker, savings and loan association or credit union meeting the
requirements of the Conversion Agent, which requirements include membership or
participation in the Securities Transfer Agents Medallion Program ("STAMP") or
such other "signature guarantee program" as may be determined by the Conversion
Agent in addition to, or in substitution for, STAMP, all in accordance with the
Securities Exchange Act of 1934, as amended.)

                                       7

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