Document:

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                                                                 EXHIBIT 10.3(a)

AFTER RECORDING
PLEASE RETURN TO:
Commercial Settlements, Inc.
1015 15th Street, N.W.
Suite 300
Washington, D.C. 20005
Attention:  David Nelson

                   EASEMENT, LICENSE AND ATTACHMENT AGREEMENT
                               (Dickerson Station)

         THIS EASEMENT, LICENSE AND ATTACHMENT AGREEMENT (the "Agreement"), is
dated as of December 19, 2000, and is entered into by and between SOUTHERN
ENERGY MID-ATLANTIC, LLC, a limited liability company organized and existing
under the laws of the State of Delaware and having an office at 8711 Westphalia
Road, Upper Marlboro, MD 20774 ("Generator"), SOUTHERN ENERGY MD ASH MANAGEMENT,
LLC, a limited liability company organized and existing under the laws of the
State of Delaware and having an office at 8711 Westphalia Road, Upper Marlboro,
M.D. 20774 ("SEAM") and POTOMAC ELECTRIC POWER COMPANY, a District of Columbia
and Virginia corporation and having an office at 1900 Pennsylvania Avenue, N.W.,
Washington, DC 20068 ("Pepco") and The Bank of New York, a New York banking
corporation organized and existing under the laws of the State of New York, as
successor to The Riggs National Bank of Washington, D.C. as Trustee under the
Bond Indenture dated July 1, 1936 made by Potomac Electric Power Company, as
amended and supplemented (which original Bond Indenture is recorded among the
Land Records of Montgomery County, Maryland in Liber CKW No. 547, Folio 415).
Generator and Pepco may hereinafter be referred to individually as a "Party" and
collectively as the "Parties."

                                    RECITALS

         A. Southern Energy, Inc., a Delaware corporation (the "Buyer"), and
Pepco have entered into an Asset Purchase and Sale Agreement for Generating and
Related Assets (as amended from time to time, the "Asset Sale Agreement"), dated
June 7, 2000, for the sale of Pepco's generating station known as the Dickerson
Station (as defined in the Asset Sale Agreement). The Buyer has assigned certain
of its rights and obligations under the Asset Sale Agreement relating to the
Dickerson Station to Generator and to SEAM in accordance with Section12.5 of the
Asset Sale Agreement.

         B. The Dickerson Station is located on that certain parcel of real
property which has been conveyed by Pepco to Generator pursuant to the Asset
Sale Agreement by virtue of a deed recorded immediately prior hereto and is more
particularly described in Exhibit "A" attached hereto, and PEPCO, by virtue of a
deed recorded immediately prior hereto, has conveyed unto SEAM the fly ash site
(the "Fly Ash Site") more particularly
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described in Exhibit A-1 attached hereto (together with the real property
described in Exhibit A, the "Generator's Real Property").

         C. Pepco intends to continue to operate its transmission and
distribution business on and from that certain parcel of real property adjoining
the Generator's Real Property, which parcel has been retained by Pepco following
the conveyances contemplated by the Asset Sale Agreement, and is more
particularly described in Exhibit "B" attached hereto (the "Pepco Real
Property").

         D. Pepco will continue to own and operate certain personal property
assets used in the conduct of its transmission and distribution business which
are located upon the Generator's Real Property, and Pepco requires Access (as
defined below) to, and certain other rights with respect to, the Generator's
Real Property in connection therewith. Generator, in the operation and conduct
of its generation business, will require Access to, and certain other rights
with respect to, the Pepco Real Property. Furthermore, Pepco and Generator have
entered into an Interconnection Agreement (the "Connection Agreement"), dated as
of December 19, 2000, pursuant to which Pepco has agreed to provide certain
Interconnection Service to Generator required for Generator's conduct of its
generation business at Dickerson Station.

         E. In order for the Parties each to (i) enjoy the full benefit of their
respective property rights, real or personal, and conduct their respective
businesses thereat (ii) fulfill legal requirements, and (iii) comply with their
respective agreements under the Connection Agreement, each Party requires
certain easements, licenses, rights-of-way and/or attachment rights in, on, over
and above, or with respect to, real and or personal property of the other Party.

                                    AGREEMENT

         NOW, THEREFORE, the Parties, in consideration of the mutual covenants
and agreements contained herein and in the Asset Sale Agreement and the
Connection Agreement, and for other good and valuable consideration, the receipt
whereof and sufficiency of which are hereby acknowledged, each intending to be
legally bound and to bind their respective successors and assigns, hereby
mutually agree as follows:

         1. DEFINITIONS
            -----------

            1.1 Definitions. Any capitalized terms which are used but not
defined in the body of this Agreement shall have the meanings given to such
terms in the attached Schedule 1.1.

         2. EASEMENTS
            ---------
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            2.1 Grant of Easements to Pepco. Generator does hereby give, grant,
                ---------------------------
bargain, sell, assign and convey unto Pepco, the following easements on the
Generator's Real Property for the following purposes:

                (a) A utility easement, as more particularly described in
Exhibit "C" attached hereto, for the installation, operation, repair and
maintenance of above and/or below ground power and other utility lines utilized
in connection with the transmission and distribution business of Pepco (as now
or hereafter conducted) and other functions as Pepco may determine from time to
time.

                (b) An above ground easement as more particularly described in
Exhibit "D" attached hereto, for connection of a 230kV circuit to Generator's
start-up transformer and the operation, repair and maintenance of said
connection.

                (c) An easement in the vicinity of the Pyrite Storage Area on
Generator's Real Property, as such area is more particularly described in
Exhibit "E" attached hereto, to extend overhead and underground electric wires
and associated facilities to interconnect future Pepco facilities on the Pepco
Real Property with existing or future facilities of Pepco and/or other third
parties.

                (d) An easement for the Use, operation and maintenance of the
Retained Assets (as described in the Asset Sale Agreement) located upon the
Generator's Real Property and any other equipment of any nature or kind retained
by Pepco and located upon the Generator's Real Property, together with any other
equipment used in connection with the foregoing (together with replacements
thereof and substitutions therefor).

                (e) An easement which enables Pepco to keep and maintain in
their present locations, and operate, any Transmission Facilities, Distribution
Facilities and other assets owned by Pepco and located upon the Generator's Real
Property, together with an easement for all purposes reasonably deemed necessary
or convenient by Pepco to exercise any right or fulfill any obligation under the
Connection Agreement, including the right to Use any improvements constructed,
maintained or installed in connection therewith.

                (f) An easement of Access to those certain generating buildings
(and any replacements thereof) located upon the Generator's Real Property in and
upon which certain of Pepco's Distribution Facilities and Transmission
Facilities are located. Such easement shall include, without limitation, the
right to have keys, access codes or other access methods necessary to enter any
of such generating buildings. Furthermore, the exercise of the easement right
set forth in this subparagraph shall be subject to the provisions of the
Connection Agreement including, without limitation, Section 3.3 thereof.

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                (g) An easement of Access to the Generator's Real Property for
the purposes of exercising any of the rights granted in this Section 2.1, in
Section 2.3(b)(viii) hereof, in the Connection Agreement or the Asset Sale
Agreement.

                (h) An easement of Access to, and the right to use, the parking
lots, access roads, driveways and other such facilities located upon the
Generator's Real Property, together with the right to use the railroad lines and
railroad spurs located upon the Generator's Real Property (such railroad lines
and railroad spurs, "Generator's Rail Facilities") for the transportation of
machinery and/or similar uses; provided, however, that the easement of Access to
Generator's Rail Facilities shall require Generator's prior consent, such
consent not to be unreasonably withheld.

                (i) Pepco's exercise of the rights, easements, privileges and
licenses granted to it pursuant to this Section 2.1 shall be limited to
Qualified Personnel or employees of contractors employed by Pepco who, in either
event, are under Pepco's and/or its contractors' direct supervision and whose
duties include, or who are engaged for the purpose of, Use of the rights granted
pursuant to this Section 2.1.

                (j) The easements granted pursuant to this Section 2.1 shall
expressly include Pepco's right to lease, license or otherwise permit Affiliates
or third parties to use Pepco's facilities upon such terms and for such purposes
as Pepco may determine from time to time, subject to the terms and conditions of
this Agreement.

            2.2 Reservation by Generator of Certain Rights. Generator reserves
                ------------------------------------------
to itself, from the easements granted pursuant to Section 2.1 hereof, the
following rights, subject, however, to the provisions of subsections (c) and (d)
of this Section 2.2:

                (a) the right to (i) keep and maintain Generator's Real Property
and all improvements and facilities owned by Generator and located upon the
Generator's Real Property in their present locations, and (ii) operate and
maintain all improvements and facilities owned by Generator and located upon the
Generator's Real Property in a manner consistent with past practice; and

                (b) the right to have Access to all portions of the Generator's
Real Property for all purposes deemed reasonably necessary or convenient by
Generator in the operation and conduct of its generation business or in order to
perform any act permitted, or fulfill any obligation of Generator, under the
Connection Agreement, including maintenance of the Generator's Real Property in
the manner described in the Connection Agreement.

                (c) Generator's exercise of the rights reserved to Generator in
this Section 2.2, and the rights, privileges and licenses granted to Generator
in Section 2.3 shall be exclusively limited to Qualified Personnel or employees
of contractors employed by Generator who, in either event, are under Generator's
and/or its contractors' direct

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supervision and whose duties include, or who are engaged for the purpose of, Use
of the property described in clause (a) of this Section.

                (d) Generator agrees that the maximum elevation of storage in or
on the Pyrite Storage Area described in Exhibit "E" attached hereto shall at no
time, in any location, exceed 405 feet above sea level.

            2.3 Grant of Easements, Right, Privilege and License From Pepco to
                --------------------------------------------------------------
Generator.
---------
                (a) Pepco does hereby grant to Generator (and to SEAM, but only
as to the easement of Access for ingress and egress to the Fly Ash Site) the
following easements, rights, privileges and licenses on and with respect to the
Pepco Real Property:

                    (i)    An easement of Access to and upon the Pepco Real
Property from Martinsburg Road (or other public right of way) for ingress and
egress to Dickerson Station and the other Generating Facilities, and for ingress
and egress to the Fly Ash Site.

                    (ii)   An easement which enables Generator to keep and
maintain in their present locations, and operate, any Generating Facilities and
other assets owned by Generator and located upon the Pepco Real Property,
including, without limitation, an easement for a portion of the Generator's oil
retention area located upon the Pepco Real Property in the area more
particularly described in Exhibit "F" attached hereto.

                    (iii)  An easement of Access to and upon the Pepco Real
Property for the purposes of exercising any of the rights granted in the
Connection Agreement or the Asset Sale Agreement.

                (b) In addition, but without limitation of Generator's rights
pursuant to the Connection Agreement, Pepco agrees to make available to
Generator (at no cost to Generator, except as provided below) Pepco's master
station voltage control equipment (the "Equipment") located at Dickerson Station
upon the Generator's Real Property during the term of this Agreement, subject to
the following terms and conditions, and Generator agrees to comply with such
terms and conditions:

                    (i)    Generator's operation of the Equipment shall at all
times be subject to that certain Agreement of Sale and Lease dated as of
November 30, 1994 between NationsBank Trust Company, National Association and
Pepco (the "Control Center Lease"), and Generator shall comply with the terms
and conditions thereof with respect to the use of the Equipment (including
keeping the Equipment free and clear of any liens, claims or encumbrances of
whatever nature, and identifying the Equipment as being owned by Pepco, and
shall not modify, alter, remove or add to the Equipment);

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                    (ii)   Generator shall operate and maintain the Equipment in
accordance with Good Utility Practice;

                    (iii)  Generator shall be responsible for all operating,
repair and maintenance costs, taxes and the like with respect to the Equipment,
and shall reimburse Pepco promptly upon invoicing for any such costs paid by
Pepco;

                    (iv)   Generator's Access to the Equipment shall be in
accordance with this Agreement;

                    (v)    Generator's right to operate the Equipment shall
terminate in the event of actual or constructive loss of the Equipment, damage
rendering the Equipment beyond repair or unfit for normal use, the condemnation
or seizure of the Equipment, the obsolescence of the Equipment or the material
breach by Generator of any of its covenants in this Section 2.3(b);

                    (vi)   Pepco shall have no obligation to Generator with
respect to the Equipment other than to permit Access to and operation of the
Equipment in accordance with this Section 2.3(b);

                    (vii)  The obligations of Generator under Section 7.4
(maintenance of liability insurance coverage) and Section 7.1 (indemnification)
shall be applicable to the Equipment; and

                    (viii) Pepco shall have Access to the Equipment for purposes
of complying with the terms and conditions of the Control Center Lease and as
necessary to perform any of the obligations of Generator pursuant to this
subparagraph (b) above to the extent the same are not timely performed by
Generator.

            2.4 General Scope of Easements.
                --------------------------

                (a) Except as otherwise provided in Sections 2.2 and 2.3 above
and Section 2.4(b) below, each easement and each right, privilege and license
granted hereby is and shall be a perpetual grant, transfer, conveyance and right
of Access to and Use (subject to the terms of this Agreement) to the Grantee
thereof and to any future owner of the real property, improvements and
facilities benefited thereby. Notwithstanding the foregoing, all easements,
rights, privileges and licenses granted by this Agreement are and shall be
subject to the terms and conditions of the Connection Agreement, and in the
event

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of any inconsistency between the terms and conditions of the Connection
Agreement and the terms of this Agreement, the terms of the Connection Agreement
shall control.

                (b) Any easement or right, privilege and license granted
hereunder for purposes of enabling a Party to exercise any right or fulfill any
obligation set forth in the Connection Agreement will continue for the term of
the Connection Agreement, and thereafter if and to the extent that the right or
obligation (i) shall by its express terms survive the termination or expiration
of the Connection Agreement or (ii) is necessary for the conduct of business by
Grantee. In the event of the termination or expiration of an easement or right,
privilege and license granted hereunder for purposes of enabling a Grantee to
exercise any right or fulfill any obligation set forth in the Connection
Agreement, all equipment and facilities installed or maintained by such Grantee
on the real property of the other Party pursuant to said terminated or expired
easement or right, privilege and license shall, at the request of the other
Party, be removed at the sole cost and expense of such Grantee, and such Grantee
shall, at its sole cost and expense repair any damage to the real property
and/or equipment and facilities of the other Party damaged as a result of such
removal.

                (c) All equipment and facilities installed or maintained by
Grantee pursuant to an easement or right, privilege and license granted
hereunder shall be maintained by Grantee in accordance with Good Utility
Practice and the Connection Agreement, and Grantee shall make all repairs and
replacements necessary to keep such equipment and facilities in such condition.

                (d) Generator may not Use any portion of Generator's Real
Property burdened by any easement, right or privilege granted to Pepco hereunder
if such Use would materially adversely affect the Use and enjoyment by Pepco of
the rights granted to it hereunder, or materially increase the costs or risks
associated with such Use.

                (e) All easements granted herein shall be deemed easements
appurtenant to the parcel of real property benefited thereby and shall run with
such real property and shall be deemed covenants running with the real property
burdened thereby.

            2.5 Interpretation. The following shall apply in interpreting any
                --------------
easement and any right, privilege and license granted pursuant to this
Agreement:

                (a) Each easement and each right, privilege and license granted
herein is irrevocable except by written agreement of the parties.

                (b) With respect to any easement created by this Agreement, the
words "in," "upon," "to," "on," "over," "above," "through" and/or "under" shall
be interpreted to include all of such terms.

                (c) Each easement and each right, privilege and license granted
herein may be enjoyed without charge or fee to Grantee of the easement.

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                (d) Each easement and each right, privilege and license granted
herein is also a grant of the additional right of Access over Grantor's property
to accomplish the purpose of such easement or right, privilege and license, to
perform any obligations hereunder or in the Connection Agreement, and to comply
with any legal requirements affecting Grantee or its property and/or
improvements.

                (e) Exercise of any easement or any right, privilege and license
granted hereunder permitting or requiring maintenance, repairs, alteration,
restoration, rebuilding, construction, upgrading, cleaning, installation,
removal, modification, replacement, expansion, or other work by Grantee upon the
property or improvements of Grantor shall be subject to the following
conditions:

                    (i) Work upon the facilities and properties of either Party
                    subject to this Agreement shall be permitted only to each
                    Party's Qualified Personnel, and Access to such facilities
                    and properties shall be permitted only to a Party's
                    Qualified Personnel and such consultants, agents,
                    contractors, subcontractors and invitees as any Party may
                    select or permit; provided that any consultant, agent,
                    contractor, subcontractor or invitee shall comply with all
                    applicable provisions of this Agreement and the Connection
                    Agreement.

                    (ii) Work shall be performed using reasonable precautions to
                    avoid unreasonable interference with the Use and enjoyment
                    of Grantor's property and improvements.

                    (iii) Except only as may be specifically provided to the
                    contrary herein, Grantee shall not be liable for damage, if
                    any, which may be caused by Grantee's normal and reasonable
                    Use of any easement, or right, privilege or license granted
                    hereunder.

                    (iv) Following completion of the work, Grantee shall restore
                    Grantor's property and improvements to the same or as good a
                    condition as existed before the commencement of the work.

                    (v) Any easement and any right, privilege and license
                    granted herein which permits a Grantee to maintain its
                    property, equipment, facilities and appurtenances on the
                    property and improvements owned by Grantor also includes the
                    right to maintain in place on Grantor's property and
                    improvements any and all wires and cables connecting such
                    property, equipment, facilities, and appurtenances to (i)
                    the devices, machinery and equipment which they measure,
                    regulate and/or control, and

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                    (ii) power sources.

                    (vi) Generator shall be solely responsible for the
                    maintenance of any roads, paths and other means of entry or
                    exit located upon either the Generator's Real Property or
                    the Pepco Real Property that are commonly utilized by
                    Generator and Pepco, and their respective employees, agents
                    and contractors pursuant to this Agreement or the Connection
                    Agreement.

                (f) Any easement granted pursuant to Section 2.1(a), (b), (c),
(d) or (e) includes the right to (i) trim, cut, treat and/or remove, by manual,
mechanical, and chemical means, any and all trees, brush, structures and other
obstructions within the easement area, as well as such trees, brush, structures
and vegetation outside of the easement area deemed reasonably necessary or
desirable by Pepco for the safe and secure operation of its facilities; and (ii)
obtain Access to Generator's Real Property for the purpose of performing the
aforementioned acts.

            2.6 Rules and Regulations.
                ---------------------

         Each Party may promulgate rules regulating the conduct of the other
Party in the exercise of rights under this Agreement provided such rules and
regulations do not unreasonably interfere with or impede the affected Party's
rights and easements as set forth herein or in the Connection Agreement.

            2.7 No Obstruction.
                --------------

                (a) No Party hereto shall obstruct the easements or the rights,
privileges and licenses granted or created pursuant to this Agreement or render
them impassable or unusable in any way or otherwise in any way interfere with
the right to the Use and enjoyment of the easements or rights, privileges and
licenses granted or created pursuant to this Agreement.

                (b) No Party hereto shall make any changes to the topography or
accesses on or to its respective property, including grading or drainage that
could reasonably be expected to adversely affect another Party's facilities,
common use drainage systems, or pollution control systems, or the exercise of
any right or fulfillment of any obligation in this Agreement or in the
Connection Agreement, without the prior written consent of the other Party which
consent shall not unreasonably be withheld, delayed or conditioned.

         3. TAXES, ASSESSMENTS AND OTHER CHARGES
            ------------------------------------

            3.1 Real Estate Taxes. Generator, with respect to the Generator's
                -----------------
Real Property and Pepco, with respect to the Pepco Real Property, shall pay and
discharge all of the following ("Real Estate Taxes") whether or not now within
the contemplation of the

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Parties hereto: (i) all real estate taxes, assessments (both general and
special), other governmental impositions and charges, taxes, rents, levies and
sums of every kind or nature whatsoever, extraordinary as well as ordinary, as
shall at any time be imposed by any governmental or public authority on, or
become a lien in respect of, the Generator's Real Property or the Pepco Real
Property, as the case may be, or any part thereof, or which may become due and
payable with respect thereto, and any and all taxes assessments and charges
levied, assessed or imposed upon the Generator's Real Property or the Pepco Real
Property, as the case may be, in lieu of or in addition to, the foregoing, under
or by virtue of any present or future laws, rules, requirements, orders,
directives, ordinances or regulations of the United States of America or of the
State or of any subdivision thereof, or of any lawful governmental authority
whatsoever, and any interest or penalties thereon, and (ii) all other taxes
(excluding gains, sales and income taxes but including occupancy taxes which are
measured by income) measured by ownership of the Generator's Real Property or
the Pepco Real Property, as the case may be. Generator shall pay and discharge
all levies and assessments for water, water meter (including any expenses
incident to the installation, repair or replacement of any water meter) and
sewer and all rents with respect to water and sewer which provide service to the
Generator's Real Property.

            3.2 Personal Property Taxes. Generator and Pepco shall,
                -----------------------
respectively, pay and discharge all of the following ("Personal Property Taxes")
whether or not now within the contemplation of the Parties hereto: all taxes and
assessments which shall or may be charged, levied, assessed or imposed upon, or
become a lien upon, the personal property of Generator or Pepco, as the case may
be, Used in the operation or in connection with the business conducted at the
Generator's Real Property or the Pepco Real Property, as the case may be.

            3.3 Timing of Payment. Subject to the provisions of Section 3.5,
                -----------------
Generator and Pepco shall each comply with its covenant to pay and discharge all
Real Estate Taxes and Personal Property Taxes by paying all such taxes directly
to the appropriate taxing authorities prior to the expiration of the period
within which payment is permitted without penalty or interest. Generator and
Pepco shall within twenty (20) days of written request of the other Party,
produce the most recent official receipts from the appropriate taxing
authorities evidencing such payment certified by Generator or Pepco, as the case
may be, to the other Party hereto.

            3.4 Cooperation with Respect to Tax Statements. Generator and Pepco
                ------------------------------------------
will cooperate with each other in obtaining and/or retaining any tax abatement
for which the Generator's Real Property or Pepco Real Property may be eligible.
Upon written request of the Party seeking an abatement, the other Party or
Parties hereto will execute and file any and all documents and instruments
reasonably necessary to obtain and retain such abatement, without the assumption
of any liabilities or obligations, provided that the Party seeking such
abatement shall reimburse the cooperating Party or Parties for any reasonable
expenses that such cooperating Party or Parties may incur in connection
therewith.

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            3.5 Tax Contests. Generator, with respect to the Generator's Real
                ------------
Property, and Pepco, with respect to the Pepco Real Property:

                (a) May contest in good faith by appropriate proceedings
diligently and continuously conducted, at its or their sole cost and expense,
any Real Estate Tax or charge or Personal Property Tax or charge, or similar tax
or charge and, where permitted by law, pay the same under protest.

                (b) Shall pay and discharge such contested items as finally
adjudicated or settled, with interest and penalties, and all other charges
directed to be paid in or by any such adjudication or settlement.

                (c) May, in its or their sole discretion, consolidate any
proceeding to obtain a reduction in the assessed valuation with any similar
proceeding or proceedings brought by it or them relating to any one or more
other tax years.

                (d) Shall indemnify and hold the non-contesting Party harmless
from and against all liability, loss, cost or expense arising out of the
contest.

            3.6 Refunds. Any refunds from any contest undertaken pursuant to
                -------
Section 3.5 shall belong wholly to the Party or Parties that paid the tax.

         4. MECHANICS' LIENS
            ----------------

            4.1 Notice Regarding Labor and Material. Notice is hereby given that
                -----------------------------------
no Party hereto shall be liable for any labor or materials furnished or to be
furnished to or for another Party hereto or to any other persons or entities
claiming under such other Party on credit, and that no mechanics' or other lien
for any such labor or material furnished to a Party or such other persons or
entities shall attach to or affect any property interest of any other Party.

            4.2 Disposition of Liens.
                --------------------

                (a) Pepco shall forthwith take such action necessary to
discharge, remove or satisfy any lien filed against the Generator's Real
Property or any portion thereof for any labor or materials furnished or to be
furnished for or on behalf of Pepco, or any person or entity holding any portion
thereof through or under Pepco.

                (b) Generator shall forthwith take such action necessary to
discharge, remove or satisfy any lien filed against the Pepco Real Property or
any portion thereof for any labor or materials furnished or to be furnished for
or on behalf of Generator, or any person or entity holding any portion thereof
through or under Generator.

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                (c) If either Pepco or Generator, as the case may be, shall fail
to discharge, remove or satisfy any such lien which it is obligated to
discharge, remove or satisfy hereunder within ten (10) days after notice of the
existence of the lien has been given to such defaulting Party, the
non-defaulting Party or parties may pay the amount of such lien or discharge the
same by deposit or bonding, and the amount so paid or deposited, or the premium
paid for such bond, with interest at the rate provided for defaults in Section
6.3 hereof, shall be paid by the defaulting Party upon demand to the
non-defaulting Party who effected such cure.

                (d) The defaulting Party shall defend, indemnify and save
harmless the non-defaulting Party from and against all liability, loss, cost or
expense (including reasonable attorneys' fees) arising out of any liens which
the defaulting Party is obligated to discharge, remove or satisfy.

         5. CONDEMNATION
            ------------

            5.1 Right to Participate. In the event the Generator's Real Property
                --------------------
or the Pepco Real Property, or any part thereof, shall be taken in condemnation
proceedings or by exercise of any right of eminent domain or any agreement with
those authorized to exercise such right (any such matter being hereinafter
referred to as a "Taking" or property "Taken"), whether such Taking be a
permanent taking or a temporary Taking, any person or entity having an interest
in the award or awards shall have the right to participate in any such
condemnation proceedings or agreement for the purpose of protecting its interest
hereunder. Each Party so participating shall pay its own expenses.

            5.2 Total Taking. A "Total Taking" shall be deemed to have occurred
                ------------
as to the property of any Party (which means the Generator's Real Property, as
to Generator, and the Pepco Real Property, as to Pepco) when the entire property
of such Party shall be Taken or a substantial part of such property shall be
Taken and the untaken portion of the property would, following the completion of
restoration, be unsuitable for the operation and the Use thereof in the manner
so operated and Used prior to the Taking. Upon a Total Taking, this Agreement
shall terminate with respect to the property Taken except with respect to the
disposition of the award and this Agreement shall continue with respect to the
property not Taken.

            5.3 Disposition of Award. In the event of a Taking, each Party shall
                --------------------
be entitled to share in the awards to the extent of its interest in the property
subject to the Taking, and for consequential damages to and dilution of value of
the relevant property not so Taken.

            5.4 Notice of Taking. In the event the Generator's Real Property or
                ----------------
the Pepco Real Property, or any part thereof, shall be the subject of any
condemnation proceedings or the subject of any eminent domain proceedings, and
if any Party shall

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receive actual notice of such proceedings, the Party receiving such notice shall
notify the other Party of the existence of such proceedings. Such notification
shall occur within thirty (30) days of the receipt of such actual notice.

         6. DEFAULTS
            --------

            6.1 Events of Default. Each and every one of the following events
                -----------------
shall constitute an Event of Default ("Event of Default") under this Agreement:

                (a) If a Party fails to make any payment due to the other Party
hereto within twenty (20) days of written demand for such payment;

                (b) If a Party fails, within twenty (20) days of written notice
from a Party, to make any payment due from such Party to any third party and
such failure could result in the imposition of a lien or other encumbrance on
the property or improvements of a Party, unless the payment of such amount is
contested in accordance with Section 3.5 hereof, in which case, the provisions
of Section 3.5 shall control; and

                (c) If a Party fails to perform any material non-monetary
obligations hereunder, and said Party fails to cure such default within thirty
(30) days of receipt of written notice stating with particularity the nature of
the default; provided, however, if such default is of such a nature that it
cannot be cured within thirty (30) days following receipt of such notice, an
Event of Default shall not have occurred if the defaulting Party shall within
such thirty (30) days commence the necessary cure and shall at all times
thereafter diligently and continuously prosecute such cure to completion.

            6.2 Right of Self Help. A non-defaulting Party may at its election
                ------------------
following the occurrence of a non-monetary Event of Default and the thirtieth
(30th) day after the receipt of the written notice specified in paragraph 6.1(c)
hereof, undertake the cure of such default on behalf of the defaulting Party. A
non-defaulting Party is granted an easement to enter upon, through or under the
property or improvements of the defaulting Party to effect such cure. Following
the occurrence of an Event of Default involving the payment of money to a person
or entity not Party to this Agreement, a non-defaulting Party may make such
payment on behalf of the defaulting Party. All monies paid by the non-defaulting
Party and all reasonable costs and expenses (including, reasonable attorneys'
fees) incurred by it, as the case may be, in effecting such cure or payment,
shall be paid by the defaulting Party upon written demand, together with
interest from the date of such demand at the rate set forth in Section 6.3. This
Section 6.2 shall not limit Pepco's self-help rights pursuant to Section 2.3(b).

            6.3 Interest. Following the occurrence of an Event of Default
                --------
involving the nonpayment of money by the defaulting Party to the non-defaulting
Party, all monies owed to the non-defaulting party shall bear interest at the
rate equal to one and one-half percent (1.5%) per month accruing on the due
date, provided, however, that such

                                       13
<PAGE>

late payment charge shall not exceed the maximum charge which may be collected
under State law.

            6.4 Enforcement Rights. In addition to any other rights expressly
                ------------------
set forth in this Agreement, but without limitation, enforcement of this
Agreement may be had by legal or equitable proceedings against any defaulting
Party either to specifically enforce, restrain or enjoin the violation of any
restriction, covenant, agreement, term, representation or warranty herein
contained or to recover damages. The above notwithstanding, termination of this
Agreement shall not be available as a remedy in any proceedings against any
defaulting Party.

            6.5 No Forfeiture. Except by enforcement of a judgment lien against
                -------------
such property, nothing contained in this Agreement shall create any reversion,
condition or right of re-entry or other provisions for forfeiture under which
any Party can be cut off, subordinated or otherwise disturbed in the possession
of its property.

            6.6 Independent Covenants. None of the rights and easement granted
                ---------------------
by this Agreement and none of the performances required by this Agreement shall
be dependent, upon the performance of any other term, promise, or condition of
this Agreement or any documents executed concurrently or in connection with this
Agreement, and such rights, easement and requirements or performance shall
continue in effect irrespective of whether anything else in this Agreement or
such other documents has been breached or has been terminated. The separateness
and independent survival of the right, easements and requirements of performance
under this Agreement are essential terms hereof without which this Agreement
would not have been made.

         7. INDEMNIFICATION AND INSURANCE
            -----------------------------

            7.1 Generator's Indemnification. Generator shall indemnify, hold
                ---------------------------
harmless, and defend Pepco and its Affiliates, as the case may be, and their
respective officers, directors, employees, agents, contractors, subcontractors,
invitees, successors and permitted assigns from and against any and all claims,
liabilities, costs, damages, and expenses (including, without limitation,
reasonable attorney and expert fees, and disbursements incurred by any of them
in any action or proceeding between Pepco and a third party or Generator) for
damage to property of unaffiliated third parties, injury to or death of any
person, including Pepco's employees or any third parties, to the extent caused,
by the breach of this Agreement by Generator or the negligence or willful
misconduct of Generator and/or its officers, directors, employees, agents,
contractors, subcontractors or invitees arising out of or connected with
Generator's performance of this Agreement, or the exercise by Generator of its
rights hereunder.

            7.2 Pepco's Indemnification. Pepco shall indemnify, hold harmless,
                -----------------------
and defend Generator and its Affiliates, as the case may be, and their
respective officers, directors, employees, agents, contractors, subcontractors,
invitees, successors and permitted

                                       14
<PAGE>

assigns from and against any and all claims, liabilities, costs, damages, and
expenses (including, without limitation, reasonable attorney and expert fees,
and disbursements incurred by any of them in any action or proceeding between
Generator and a third party or Pepco) for damage to property of unaffiliated
third parties, injury to or death of any person, including Generator's employees
or any third parties, to the extent caused by the breach of this Agreement by
Pepco or the negligence or willful misconduct of Pepco and/or its officers,
directors, employees, agents, contractors, subcontractors or invitees arising
out of or connected with Pepco's performance of this Agreement, or the exercise
by Pepco of its rights hereunder.

            7.3 Survival. The provisions of Sections 7.1 and 7.2 shall survive
                --------
termination, cancellation, suspension, completion or expiration of this
Agreement.

            7.4 Insurance Coverage. The Parties shall maintain at their own cost
                ------------------
the following insurance: (a) standard Commercial General Liability insurance
with limitations not less than One Hundred Million Dollars ($100,000,000.00) in
the aggregate; (b) All-Risk Property insurance in amounts not less than one
hundred percent (100%) of the full replacement cost of the improvements located
upon each Party's real property; (c) Worker's compensation insurance as required
by prevailing law and Employer's liability insurance with limits of not less
than Twenty-five Million Dollars ($25,000,000.00); and (d) such other insurance
as is customary in the electric utility industry.

            7.5 Certificate of Insurance. The Parties agree to furnish each
                ------------------------
other with certificates of insurance evidencing the insurance coverage obtained
in accordance with this Article 7, and the Parties agree to notify and send
copies to the other of any policies maintained hereunder upon written request by
a Party. Each Party must notify the other Party within five (5) business days of
receiving notice of cancellation, change, amendment or renewal of any insurance
policy required pursuant to Section 7.4 above.

            7.6 Additional Insureds and Waiver. Each Party and its affiliates
                ------------------------------
shall be named as additional insureds on the general liability insurance
policies obtained in accordance with Section 7.4, above, as regards liability
under this Agreement; and each general liability insurance policy shall contain
a waiver of subrogation and each Party shall waive its rights of recovery
against the other for any loss or damage covered by such policy.

         8. MISCELLANEOUS
            -------------

            8.1 Effective Date. This Agreement will be effective on the Closing
                --------------
Date pursuant to the Asset Sale Agreement (the "Effective Date").

            8.2 Exhibits. All exhibits attached to this Agreement are part of
                --------
this Agreement and the material contained in such exhibits shall be construed
and interpreted as if contained within the text of the Agreement.

                                       15
<PAGE>

            8.3 Headings. The Article and Section headings of this Agreement are
                --------
for convenience and reference only and in no way define, limit or describe the
scope and intent of this Agreement, nor in any way affect this Agreement.

            8.4 Interpretation. When a reference is made in this Agreement to an
                --------------
Article, Section, Schedule or Exhibit, such reference shall be to an Article or
Section of, or Schedule or Exhibit to, this Agreement unless otherwise
indicated. The table of contents and headings contained in this Agreement are
for reference purposes only and shall not affect in any way the meaning or
interpretation of this Agreement. Whenever the words "include", "includes" or
"including" are used in this Agreement, they shall be deemed to be followed by
the words "without limitation" or equivalent words. The words "hereof", "herein"
and "hereunder" and words of similar import when used in this Agreement shall
refer to this Agreement as a whole and not to any particular provision of this
Agreement. The definitions contained in this Agreement are applicable to the
singular as well as the plural forms of such terms and to the masculine as well
as to the feminine and neuter genders of such term. Any agreement, instrument,
statute, regulation, rule or order defined or referred to herein or in any
agreement or instrument that is referred to herein means such agreement,
instrument, statute, regulation, rule or order as from time to time amended,
modified or supplemented, including (in the case of agreements or instruments)
by waiver or consent and (in the case of statutes, regulations, rules or orders)
by succession of comparable successor statutes, regulations, rules or orders and
references to all attachments thereto and instruments incorporated therein.
References to a person are also to its permitted successors and assigns. Each
Party acknowledges that it has been represented by counsel in connection with
the review and execution of this Agreement and, accordingly, there shall be no
presumption that this Agreement or any provision hereof be construed against the
Party that drafted this Agreement.

            8.5 GOVERNING LAW. EXCEPT WITH RESPECT TO THE CREATION, PERFECTION
                -------------
AND ENFORCEMENT OF THE REAL PROPERTY INTERESTS CREATED HEREUNDER, WHICH SHALL BE
GOVERNED AND CONSTRUED BY THE LAWS OF THE STATE, THIS AGREEMENT SHALL BE
GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE DISTRICT OF
COLUMBIA EXCLUSIVE OF ITS CHOICE OF LAW RULES.

            8.6 Entire Agreement. This Agreement, the Asset Sale Agreement, the
                ----------------
Confidentiality Agreement (as defined in the Asset Sale Agreement) and the
Ancillary Agreements (as defined in the Asset Sale Agreement) including the
Exhibits, Schedules, documents, certificates and instruments referred to herein
or therein and other contracts, agreements and instruments contemplated hereby
or thereby, embody the entire agreement and understanding of the Parties in
respect of the transactions contemplated by this Agreement. There are no
restrictions, promises, representations, warranties, covenants or undertakings
other than those expressly set forth or referred to herein or therein.

                                       16
<PAGE>

            8.7 Amendment and Modification, Extension, Waiver. This Agreement
                ---------------------------------------------
may be amended, modified or supplemented only by an instrument in writing signed
on behalf of each of the Parties. Either Party may (i) extend the time for the
performance of any of the obligations or other acts of the other Party, (ii)
waive any inaccuracies in the representations and warranties of the other Party
contained in this Agreement or (iii) waive compliance by the other Party with
any of the agreements or conditions contained in this Agreement. Any agreement
on the part of a Party to any such extension or waiver shall be valid only if
set forth in an instrument in writing signed on behalf of such Party. The
failure of a Party to this Agreement to assert any of its rights under this
Agreement or otherwise shall not constitute a waiver of such rights.

            8.8 Binding Effect. The covenants, conditions, restrictions,
                --------------
encumbrances, easements, license and agreements set forth in this Agreement
shall attach to, burden, and run with the land and the Generator's Real Property
and the Pepco Real Property or the applicable portion or portions thereof, and
shall be appurtenant to the Generator's Real Property or the Pepco Real
Property, as appropriate and, together with the remainder of this Agreement,
shall be binding upon the Parties hereto and their respective successors,
assigns, grantees, transferees and tenants and, together with the remainder of
this Agreement, shall inure to the benefit and Use of the Parties hereto and
their respective heirs, successors, assigns, grantees, transferees and tenants.
Each Grantee of any portion of or interest in the property and each mortgagee
which succeeds to the fee simple ownership of any portion of the property shall
be deemed, by the acceptance of the deed conveying fee simple title to such
person, to have agreed to perform each and every undertaking created hereunder
attributable to the portion of the property in which such Grantee or mortgagee
has acquired an interest.

            8.9 Counterparts. This Agreement may be executed in two or more
                ------------
counterparts, each of which shall be deemed an original, but all of which
together shall constitute one and the same instrument.

            8.10 Severability. If any term or other provision of this Agreement
                 ------------
is invalid, illegal or incapable of being enforced by any rule of law or public
policy, all other conditions and provisions of this Agreement shall nevertheless
remain in full force and effect. Upon such determination that any term or other
provision is invalid, illegal or incapable of being enforced, the Parties shall
negotiate in good faith to modify this Agreement so as to effect the original
intent of the Parties as closely as possible to the fullest extent permitted by
applicable law in an acceptable manner to the end that the transactions
contemplated hereby are fulfilled to the extent possible.

            8.11 Notices. All notices and other communications hereunder shall
                 -------
be in writing and shall be deemed given (as of the time of delivery or, in the
case of a telecopied communication, of confirmation) if delivered personally,
telecopied (which is confirmed) or sent by overnight courier (providing proof of
delivery) to the Parties at the following addresses (or at such other address
for a Party as shall be specified by like notice):

                                       17
<PAGE>

            if to Pepco, to:

                Potomac Electric Power Company
                1900 Pennsylvania Avenue, N.W.
                Washington, D.C. 20068
                Telecopier:  (202) 261-7889
                Attention:  William T. Torgerson, General Counsel

            with a copy to:

                Dickstein Shapiro Morin & Oshinsky LLP
                2101 L Street, N.W.
                Washington, D.C. 20037
                Telecopy No.: (202) 887-0689
                Attention:  Kenneth M. Simon, Esq.

            if to Generator, to:

                c/o Production Service Center
                8711 Westphalia Road
                Upper Marlboro, MD 20774
                Telecopier:  (301) 669-8030
                Attention:  Richard Koch, Chief Operations Officer

            with a copy to:

                Troutman Sanders LLP
                401 9th Street, N.W.
                Suite 1000
                Washington, DC 20004
                Telecopier:  (202) 274-2994
                Attention:  Benjamin L. Israel, Esq.

The names, titles and addresses of either Party in this section may be changed
by written notification to the other Party.

            8.12 Independent Contractor Status. Nothing in this Agreement shall
                 -----------------------------
be construed as creating any relationship between Pepco and Generator other than
that of independent contractors.

            8.13 Conflicts. Except with respect to the amendments,
                 ---------
indemnification, liability, default and remedies provisions contained herein or
as otherwise

                                       18
<PAGE>

expressly provided herein, in the event of any conflict or inconsistency between
the terms of this Agreement and the terms of the Asset Sale Agreement, the terms
of the Asset Sale Agreement shall prevail.

         The representations, covenants and warranties, if any, made by Pepco
herein are made solely by Potomac Electric Power Company, and not by The Bank of
New York, as Trustee, and The Bank of New York, as Trustee, joins in the
execution and delivery hereof solely in order to effect the release of the
above-described rights upon the Pepco Real Property from the lien of the Bond
Indenture dated July 1, 1936, as amended and supplemented. Pursuant to that
certain Agreement of Resignation, Appointment and Acceptance dated as of
September 27, 1997, by and among Pepco, The Riggs National Bank of Washington,
D.C. ("Riggs") and the Trustee, the Trustee is the successor to Riggs, the
original trustee under the Bond Indenture.

                                       19
<PAGE>

         IN WITNESS WHEREOF, Pepco and Generator have caused this Agreement to
be signed by their respective duly authorized officers as of the date first
above written.

                                      POTOMAC ELECTRIC POWER COMPANY

                                      By: /s/ Mary Sharpe-Hayes
                                          --------------------------------------
                                      Name:  Mary Sharpe-Hayes
                                            ------------------------------------
                                      Title: Vice President
                                            ------------------------------------

                                      SOUTHERN ENERGY MID-ATLANTIC, LLC

                                      By: /s/ David L. Davis
                                          --------------------------------------
                                      Name:  David L. Davis
                                            ------------------------------------
                                      Title: Vice President
                                            ------------------------------------

                                      SOUTHERN ENERGY MD ASH MANAGEMENT, LLC

                                      By: /s/ David L. Davis
                                          --------------------------------------
                                      Name:  David L. Davis
                                            ------------------------------------
                                      Title: Vice President
                                            ------------------------------------

                                      THE BANK OF NEW YORK

                                      By: /s/ Mary Beth Lewicki
                                          --------------------------------------
                                      Name:  Mary Beth Lewicki
                                            ------------------------------------
                                      Title: Vice President
                                            ------------------------------------

                                       20
<PAGE>

DISTRICT OF COLUMBIA

           On this 18th day of December, 2000, before me, the undersigned Notary
Public, personally appeared Mary Sharpe-Hayes who acknowledged herself to be the
Vice President of Potomac Electric Power Company, and that she, as Vice
President of such corporation, being authorized so to do, executed the foregoing
Instrument for the purposes therein contained, by signing her name, as Vice
President of Potomac Electric Power Company.

           IN WITNESS WHEREOF, I hereunto set my hand and official seal.

                                                  Marina M. Lauziere
                                                  ------------------------------
                                                  Notary Public

My commission expires: March 14, 2001

DISTRICT OF COLUMBIA

           On this 18th day of December, 2000, before me, the undersigned Notary
Public, personally appeared David L. Davis who acknowledged himself to be the
Vice President of Southern Energy Mid-Atlantic, LLC, and that he, as Vice
President of such corporation, being authorized so to do, executed the foregoing
Instrument for the purposes therein contained, by signing his name, as Vice
President of Southern Energy Mid-Atlantic, LLC.

           IN WITNESS WHEREOF, I hereunto set my hand and official seal.

                                                  Marina M. Lauziere
                                                  ------------------------------
                                                  Notary Public

My commission expires: March 14, 2001

                                      21
<PAGE>

DISTRICT OF COLUMBIA

           On this 18th day of December, 2000, before me, the undersigned Notary
Public, personally appeared David L. Davis who acknowledged himself to be the
Vice President of Southern Energy MD Ash Management, LLC, and that he, as Vice
President of such corporation, being authorized so to do, executed the foregoing
Instrument for the purposes therein contained, by signing his name, as Vice
President of Southern Energy MD Ash Management, LLC.

           IN WITNESS WHEREOF, I hereunto set my hand and official seal.

                                                  Marina M. Lauziere
                                                  ------------------------------
                                                  Notary Public

My commission expires: March 14, 2001

DISTRICT OF COLUMBIA

           On this 18th day of December, 2000, before me, the undersigned Notary
Public, personally appeared Mary Beth Lewicki who acknowledged herself to be the
Vice President of The Bank of New York, and that she, as Vice President of such
corporation, being authorized so to do, executed the foregoing Instrument for
the purposes therein contained, by signing her name, as Vice President of The
Bank of New York.

           IN WITNESS WHEREOF, I hereunto set my hand and official seal.

                                                  Marina M. Lauziere
                                                  ------------------------------
                                                  Notary Public

My commission expires: March 14, 2001

                                      22
<PAGE>

                                  Schedule 1.1

                                   Definitions

           "Access" means, subject to the conditions set forth in this Agreement
and a Party's right to impose reasonable security and safety restrictions
protecting its officers, employees, agents, consultants, contractors,
subcontractors, invitees, property and confidential information, full and
unimpeded access, in common with Grantor over and through existing roads, paths,
walkways, corridors, hallways, doorways, and other means of entry or exit, as
exist now and from time to time on Grantor's property or, where no means of
access exists, over and through those areas of Grantor's property or
improvements which are (i) reasonably necessary or convenient for achieving
Grantee's underlying purposes, and (ii) least likely, out of the alternatives
reasonably available, to impede or damage the property or operation of any Party
hereto. Access shall also include access and right-of-way for Grantee's
employees, agents, consultants, contractors, subcontractors, vehicles, trucks,
trailers, heavy machinery, equipment, materials, and all other items reasonably
necessary or convenient for achieving Grantee's underlying purposes.

           "Affiliate" has the meaning set forth in Rule 12b-2 of the General
Rules and Regulations under the Securities Exchange Act of 1934.

           "Agreement" means this Easement, License and Attachment Agreement.

           "Asset Sale Agreement" has the meaning set forth in the first recital
of this Agreement, as such Asset Sale Agreement may be amended or modified.

           "Connection Agreement" means the Interconnection Agreement
(Dickerson), dated as of December 19, 2000, between Pepco and Generator.

           "Distribution of Electric Current" means local transmission and
distribution of electricity to Pepco's end users.

           "Distribution Facilities" means towers, lines of towers, poles, lines
of poles, supporting structures, cables, crossarms, overhead and underground
wires, guys, braces, ducts, conduits, cables, anchors, lightning protective
wires, and all related above-ground and underground facilities, appurtenances
and equipment, including all additions, replacements and expansions thereto, now
or hereafter installed or located on the Generator's Real Property for
Distribution of Electric Current. Distribution Facilities do not include
Transmission Facilities.

           "Effective Date" has the meaning set forth in Section 8.1.

           "FERC" means the Federal Energy Regulatory Commission or its
successors.

           "Generating Facilities" means the Station and any additional
generating plants, turbines or other generating facilities constructed by
Generator after the Effective Date at the site of the Station.

                                       23
<PAGE>

           "Generator" shall have the meaning set forth in the introductory
paragraph of this Agreement and shall include its permitted successors and
assigns.

           "Generator's Real Property" means the real property described in
Exhibit A, and any improvements or betterments thereto now or hereinafter
situated thereon.

           "Good Utility Practice" shall have the meaning given it by the
Connection Agreement.

           "Grantee" means the Party or Parties who enjoy the principal benefit
of the referenced easement, license, right (including attachment rights)
privilege or right-of-way.

           "Grantor" means the owner or owners of the property and/or
improvement granting the referenced easement, license, right (including
attachment rights), privilege or right-of-way.

           "Interconnection Service" shall have the meaning given it by the
Connection Agreement.

           "Party" or "Parties" shall have the meaning set forth in the
introductory paragraph of this Agreement.

           "Pepco" shall have the meaning set forth in the introductory
paragraph of this Agreement and shall include its permitted successors and
assigns.

           "Pepco Real Property" means the real property described in Exhibit B,
and any improvements or betterments thereto now or hereinafter situated thereon.

           "Qualified Personnel" means individuals who possess any required
licenses and trained for their positions and duties by Generator and/or Pepco
pursuant to Good Utility Practice.

           "State" means the State of Maryland.

           "Station" means the Dickerson Station as defined in the Asset Sale
Agreement.

           "Transmission of Electric Current" means the transmission of such
current typically over long distances and at voltages not commonly used for
service to end use customers.

           "Transmission Facilities" means towers, lines of towers, poles, lines
of poles, supporting structures, cables, crossarms, overhead and underground
wires, guys, braces, ducts, conduits, cables, anchors, lightning protective
wires, and all related above-ground and underground facilities, appurtenances
and equipment, including all additions, replacements and expansions thereto, now
or hereafter installed or located on the Generator's Real Property and/or which
Pepco may reasonably require now and from time to time on the Generator's Real
Property for the Transmission of Electric Current. Transmission Facilities do
not include Distribution Facilities.

                                       24
<PAGE>

           "Transmission System" shall have the meaning set forth in the
Connection Agreement.

           "Use" means to operate, maintain, repair, upgrade, clean, install,
add to, alter, remove, inspect, construct, modify, restore, rebuild, replace,
relocate and expand (but if any such addition, relocation or expansion would
unreasonably or materially burden Grantor's Property, in each case, the express,
prior written consent of Grantor shall be required, which consent shall not
unreasonably be withheld, delayed or conditioned) (all of the foregoing to be in
accordance with Good Utility Practice).

                                       25<PAGE>

                                                                 Exhibit 10.3(b)

Easement, License and Attachment Agreement (Morgantown) between Potomac Electric
Power Company, Southern Energy Mid-Atlantic, LLC and Southern Energy Piney
Point, LLC dated as of December 19, 2000

Easement, License and Attachment Agreement (Chalk Point) between Potomac
Electric Power Company, Southern Energy Chalk Point, LLC and Southern Energy
Piney Point, LLC dated as of December 19, 2000

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00026-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00026-of-00352.parquet"}]]