Exhibit 99
News Release


From:      Exelon                                          FOR IMMEDIATE RELEASE
           Corporate Communications                        January 29, 2004
           P.O. Box 805379 Chicago, IL 60680-5379

Contact:   Linda Marsicano, 312.394.3099

         EXELON CORPORATION ELECTS NELSON A. DIAZ TO BOARD OF DIRECTORS

Chicago (January 29, 2004) - The Honorable Nelson A. Diaz, formerly serving the
City of Philadelphia as its City Solicitor, was elected to the board of
directors of Exelon Corporation on January 27, 2004.

Exelon (EXC), headquartered in Chicago, is the $16 billion parent of PECO
Energy, the Philadelphia-based electric and natural gas utility, and
Commonwealth Edison, the Chicago electric utility. Exelon is one of the nation's
leading energy service companies, with the largest utility retail customer base,
one of the largest power generation portfolios, and a premier wholesale energy
trading operation in the U.S.

Exelon Chairman and CEO John W. Rowe said, "Nelson Diaz brings tremendous
experience and additional diversity to our board, and he will be a great
addition to an already superb group of directors."

Mr. Diaz served as City Solicitor for the City of Philadelphia from December
2001 until he resigned from that position in January 2004. He previously was a
partner with the law firm Blank Rome Comisky & McCauley LLP, where he served in
the litigation and government relations departments from February 1997 to
December 2001. He also served as General Counsel for the United States
Department of Housing and Urban Development under President Clinton, and has
many years of experience as a judge, as a lecturer at Temple University School
of Law, and in private law practice.

Mr. Diaz received his law degree from the Temple University Law School in 1972
and was awarded Honorary Doctor of Public Service in 1990.

Mr. Diaz is active with industry, business and community organizations and has
received many national awards. He is on the boards of directors of Temple
University, the U.S. Hispanic Leadership Institute, the Philadelphia Museum of
Art, the National Association for Hispanic Elderly, and the Pennsylvania
Convention Center. He is a member of several local, state and national bar
associations and serves on the Pennsylvania Supreme Court's Committee on Racial
and Gender Bias.


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    Exelon Corporation is one of the nation's largest electric utilities with
      approximately 5 million customers and more than $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.