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                                                                EXHIBIT 10.19(a)

                       ADMINISTRATIVE SERVICES AGREEMENT

     THIS ADMINISTRATIVE SERVICES AGREEMENT (the "Agreement"), dated December
                                                  ---------
19, 2000 (the "Effective Date"), is made and entered into by and between
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SOUTHERN ENERGY RESOURCES, INC., a Delaware corporation ("SERI"), and SOUTHERN
                                                          ----
ENERGY MID-ATLANTIC, LLC, a Delaware limited liability company (the
"Generator").  SERI and the Generator sometimes are referred to herein
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individually as a "Party" and collectively as the "Parties".
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                             W I T N E S S E T H:

     WHEREAS, SERI provides such services, personnel and other resources
described herein to its affiliates; and

     WHEREAS, the Generator is an affiliate of SERI and desires to procure
certain administrative, accounting and other similar services from SERI, and
SERI is willing to render such services to the Generator in accordance with and
subject to the terms and conditions of this Agreement.

     NOW, THEREFORE, in consideration of the premises and of the mutual
agreements herein, the Parties hereto hereby agree as follows:

                                   ARTICLE I

                       TERMS AND CONDITIONS OF SERVICES

     SECTION 1.01.  Provision of Services.  SERI hereby agrees to provide to the
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Generator the following services (the "Services):
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          (a) Executive management services and advice;

          (b) Contract administration services and advice.

          (c) Bookkeeping, accounting and auditing services and advice,
     including the preparation and analyses of financial statements and
     operating reports and the establishment of accounting systems and
     procedures.

          (d) Finance and treasury services and advice, including the
     preparation of short and long range financial plans, the issuance of
     securities, the negotiation and structuring of financing arrangements, and
     the banking and investment of surplus funds.

          (e) Tax advice and assistance, including the preparation of federal,
     state and local income and other tax returns and the preparation of
     protests, claims and briefs and other matters in connection with any
     applicable taxes, governmental fees or assessments.
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          (f) Insurance and bonding advice and assistance, including negotiating
     contracts with insurers, trustees and actuaries and placing insurance
     policies.

     SECTION 1.02.  Invoicing and Compensation.
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          (a) As full and complete compensation for the Services rendered
     pursuant to this Agreement, the Generator shall pay to SERI, and SERI shall
     accept, a fee (the "Fee") equal to SERI's cost to perform the Services.  In
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     addition, the Generator shall reimburse SERI for all Incidental Expenses
     and Third Party Expenses.  "Incidental Expenses" mean all reasonable
                                 -------------------
     incidental expenses, including expenses for travel (business class air
     travel), meals, lodging, required business entertainment, telephone calls,
     shipping and similar items, incurred by SERI in connection with its
     performance of the Services.  "Third Party Expenses" mean all amounts
                                    --------------------
     billed to SERI by third parties for services, including professional
     services, rendered to or on behalf of SERI in connection with the
     performance of the Services.

          (b) Unless otherwise agreed by the parties, SERI shall submit monthly
     invoices to the Generator setting forth the Fee, Incidental Expenses and
     Third Party Expenses associated with a particular month on or before the
     fifteenth (15th) day of the succeeding month.  The Generator shall pay each
     such invoice within thirty (30) days after its receipt thereof.  As a
     condition of the Generator's obligation to make payments with respect to
     each invoice, each invoice shall set forth a reasonably detailed
     description of the nature of the Services, Incidental Expenses and Third
     Party Expenses.

          (c) Any amounts due and owing to SERI under this Section 1.02 that are
     not paid by the Generator to SERI within the required time period, shall
     accrue interest at the prime commercial lending rate as announced from time
     to time by Citibank or its successor, or, in the event it shall dissolve
     without a successor, such other institution as the Parties mutually agree,
     plus one percent (1%).

     SECTION 1.03.  Cooperation and Access to Properties and Records.  the
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Generator shall cooperate with SERI and its employees, advisors and agents
(including subcontractors) as and when reasonably requested in their performance
and fulfillment of the Services.  SERI and its employees, advisors and agents
(including subcontractors) shall have access to any and all real and personal
property of the Generator, and to any and all books and records as SERI or any
of its employees, advisors and agents (including subcontractors) determines
necessary, advisable or appropriate for or in connection with the provision of
any or all of the Services.

     SECTION 1.04.  Standard of Conduct.  SERI will use its reasonable best
                    -------------------
efforts to perform  or cause its employees, advisors and agents (including
subcontractors) to perform the Services in accordance with Good Business
Practices.  "Good Business Practices" means the practices, methods and acts, as
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in effect from time to time, that are commonly used in the independent power
industry to perform or fulfill the activities comprising the Services, or any
practices, methods or acts, which in the exercise of reasonable judgment in
light of the facts

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known at the time, that could have been expected to accomplish the desired
result at a reasonable cost consistent with good business practices,
reliability, safety and expedition; provided, however, that Good Business
Practices is not intended to be limited to optimum practices, methods or acts to
the exclusion of all others, but rather to be a range of possible practices,
methods or acts taken or engaged in by entities in the independent power
industry. Whether any particular practice, method or act of SERI complies with
Good Business Practices is to be judged in light of the facts known at the time
such particular practice, method or act was performed or taken.

     SECTION 1.05.  Limitations on Liability.
                    ------------------------

          (a) SERI and its employees, advisors and agents (including
     subcontractors) shall have no liability to the Generator for any loss,
     damage or expense suffered by the Generator arising out of or resulting
     from any act or omission of SERI or any of its employees, advisors or
     agents (including subcontractors), provided that such act or omission
     conformed to the standard of conduct set forth in Section 1.04 hereof.

          (b) Notwithstanding any other provision of this Agreement, SERI's
     total liability to the Generator and all third parties for all acts and
     omissions of SERI, its employees, advisors and agents (including
     subcontractors) in any calendar year, including, without limitation,
     liability arising out of contract, tort (including without limitation
     negligence, gross negligence and intentional misconduct), strict liability
     or any other cause or form of action whatsoever, shall not exceed the total
     compensation paid to SERI under any provision of this Agreement.

          (c) Pursuant to Sections 1.05(a), (b) and (d), each party (the
     "Indemnifying Party") hereby indemnifies and holds the other Party, and
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     such other Party's employees, advisors and agents (including
     subcontractors), harmless from and against any and all claims against such
     other Party for personal injury, death or property damage which may arise
     due to any acts or omissions of the Indemnifying Party.

          (d) Notwithstanding any other provision of this Agreement, neither
     Party shall be liable to the other Party for any lost profits, or indirect,
     incidental or consequential damages under, arising out of, due to or in
     connection with this Agreement.

          SECTION 1.06.  Independent Contractor.
                         ----------------------

          (a) SERI, in the performance of this Agreement, will be acting in its
     own separate capacity and not as a partner, joint venturer or associate of
     the Generator.  In performing its duties under this Agreement, SERI shall
     provide and complete the Services required according to its own means and
     methods of work, which shall be in the exclusive charge and control of SERI
     and not subject to the control or supervision of the Generator.

          (b) SERI shall be solely responsible for its and its employees',
     advisors' and agents' (including subcontractors) acts and omissions with
     respect to the performance of

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     the Services. Neither Party shall maintain, hold out, represent, state or
     imply to any other individual or entity that an employer/employee
     relationship exists between it and the other Party or such other Party's
     employees, advisors or agents (including subcontractors).

          (c) Neither SERI nor its employees shall be eligible to participate in
     any employee benefit plan sponsored by the Generator, including without
     limitation, any retirement plan, insurance program, disability plan,
     medical benefits plan or any other fringe benefit program sponsored and
     maintained by the Generator for its employees.

          (d) SERI shall be solely responsible for all taxes imposed on SERI as
     a result of the transactions contemplated by this Agreement.

     SECTION 1.07.  Subcontractors.  SERI may in its sole discretion subcontract
                    --------------
with other persons or entities, to perform any or all of the Services on such
terms and conditions as SERI determines to be necessary, advisable or
appropriate under the circumstances of the subcontract.

     SECTION. 1.08.  Term and Termination.  Unless sooner terminated in
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accordance with the provisions of this Agreement, the term of this Agreement
shall commence as of the Effective Date and shall continue until December 31,
2001 (the "Initial Term").  At the end of the Initial Term and each subsequent
           ------------
Renewal Term (hereinafter defined), as the case may be, the term of this
Agreement shall be automatically renewed for a period of one (1) year (each a
"Renewal Term") unless either Party delivers a written termination notice to the
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other Party at least thirty (30) days prior to the end of the Initial Term or
the then current Renewal Term, as the case may be.

                                  ARTICLE II

                                 MISCELLANEOUS

     SECTION 2.01.  Governing Law.  This Agreement and the rights of the Parties
                    -------------
hereunder shall be governed by and interpreted in accordance with the law of the
State of Georgia (without giving effect to principles of conflicts of laws which
would lead to the application of the laws of another jurisdiction).

     SECTION 2.02.  Successors and Assignability.  Except as otherwise provided
                    ----------------------------
for in Section 1.07, neither the Generator nor SERI may assign any of its rights
or delegate any of its duties under this Agreement, in whole or in part, without
the prior written consent of the other, which consent shall not be unreasonably
withheld.  This Agreement shall be binding upon each of the Parties and their
respective successors and permitted assigns.

     SECTION 2.03.  Severability.  If any provision of this Agreement shall be
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determined by any court of competent jurisdiction to be invalid or
unenforceable, the remainder of this Agreement, other than that portion
determined to be invalid or unenforceable, shall not be

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affected thereby, and each valid provision hereof shall be enforced to the
fullest extent permitted by law.

     SECTION 2.04.  Modifications.  No change, amendment or modification of this
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Agreement shall be valid or binding upon the Parties unless such change,
amendment or modification is in writing and duly executed by both Parties.

     SECTION 2.05.  Waivers.  No provision of this Agreement shall be deemed
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waived and no breach shall be deemed excused or consented to unless such waiver
or consent is in writing and signed by the Party claimed to have waived or
consented.  No consent by either Party to, or waiver of, a breach by the other,
whether express or implied, shall constitute a consent to, waiver of, or excuse
for any different or subsequent breach.

     SECTION 2.06.  Entire Agreement.  This Agreement constitutes the Parties'
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entire agreement as to the subject matter hereof and supersedes any and all
other prior understandings, correspondence and agreements, oral or written,
between them.

     SECTION 2.07.  Counterparts.  This Agreement may be executed in
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counterparts, each of which shall be deemed an original hereof but all of which
together shall constitute one and the same instrument.  Delivery of execution
pages hereof by facsimile shall constitute valid delivery of this Agreement.

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

SOUTHERN ENERGY RESOURCES, INC.                SOUTHERN ENERGY
                                               MID-ATLANTIC, LLC

By:/s/ Elizabeth B. Chandler                 By:/s/ Gary J. Kubik
   ---------------------------                  ---------------------------

Name: Elizabeth B. Chandler                  Name: Gary J. Kubik
     -------------------------                    -------------------------

Title: Vice President and Secretary          Title: Vice President, Chief
      -----------------------------                 Financial Officer and
                                                    Treasurer
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                                       6<PAGE>

                                                                Exhibit 10.19(b)

Administrative Services Agreement between Southern Energy Resources, Inc. and
Southern Energy Chalk Point, LLC dated as of December 19, 2000

Administrative Services Agreement between Southern Energy Resources, Inc. and
Southern Energy D.C. O&M, LLC dated as of December 19, 2000

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