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Exhibit 99                                                    www.exeloncorp.com

Exelon Corporation
P.O. Box 805379
Chicago, IL 60680-5379


May 30, 2003

Note to Exelon's Financial Community:


       Exelon Issues Call Notice for 50.1% Share of Sithe Energies, Inc.;
                  Continues to Pursue Sale of Sithe Investment



On May 29, 2003,  Exelon  Fossil  Holdings,  Inc., a wholly owned  subsidiary of
Exelon  Generation,  issued an irrevocable call notice for the 35.2% interest in
Sithe Energies,  Inc. (Sithe) owned by Apollo Energy, LLC and the 14.9% interest
owned by  subsidiaries  of  Marubeni  Corporation.  The total call price will be
based on the terms of the  existing  Put and Call  Agreement  among the parties,
which we estimate will be approximately $650 million.  The transfer of ownership
requires  various  regulatory  approvals  including  FERC, the state  regulatory
commissions in New York and New Jersey,  and expiration of the Hart Scott Rodino
waiting period.

Under the terms of the Put and Call  Agreement,  the call must be funded  within
six months of the call notice  being  issued.  Additionally,  because the Public
Utilities  Holding  Company Act restricts  Exelon's  ownership of 50% or more of
Qualifying Facilities (QFs), the QFs owned by Sithe must be sold or restructured
before  closing to preserve  their QF status.  Despite the  issuance of the call
notice, Exelon Generation will continue to pursue options to sell its investment
in Sithe Energies in its entirety.

The  issuance of the Call Notice is not  expected to have any impact on Exelon's
ongoing operating earnings.

For  additional  information  please  contact me at (312)  394-7696  or Marybeth
Flater at (312) 394-8354.

Sincerely,

Linda C. Byus, CFA
VP of Investor Relations

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Except for the historical  information contained herein,  certain of the matters
discussed  in this news  release  are  forward-looking  statements,  within  the
meaning  of the  Private  Securities  Litigation  Reform  Act of 1995,  that are
subject to risks and uncertainties.  The factors that could cause actual results
to differ  materially from the  forward-looking  statements made by a registrant
include  those   discussed   herein  as  well  as  those   discussed  in  Exelon
Corporation's  2002  Annual  Report  on  Form10-K  in (a)  ITEM 7.  Management's
Discussion    and   Analysis   of   Financial    Condition    and   Results   of
Operations--Business  Outlook and the  Challenges  in Managing  Our Business for
Exelon,  ComEd,  PECO and Generation  and (b) ITEM 8.  Financial  Statements and
Supplementary   Data:   Exelon--Note  19,  ComEd--Note  16,  PECO--Note  18  and
Generation--Note  13,  and (c)  other  factors  discussed  in  filings  with the
Securities and Exchange  Commission  (SEC) by Exelon  Corporation,  Commonwealth
Edison  Company,   PECO  Energy  Company  and  Exelon  Generation  Company,  LLC
(Registrants).  Readers  are  cautioned  not to place  undue  reliance  on these
forward-looking  statements,  which  apply  only as of the  date  of this  press
release.  None of the Registrants  undertakes any obligation to publicly release
any  revision  to  its   forward-looking   statements   to  reflect   events  or
circumstances after the date of this press release.

                                       ###

    Exelon Corporation is one of the nation's largest electric utilities with
    approximately 5 million customers and $15 billion in annual revenues. The
       company has one of the industry's largest portfolios of electricity
    generation capacity, with a nationwide reach and strong positions in the
    Midwest and Mid-Atlantic. Exelon distributes electricity to approximately
  5 million customers in Illinois and Pennsylvania and gas to more than 440,000
   customers in the Philadelphia area. Exelon is headquartered in Chicago and
                    trades on the NYSE under the ticker EXC.