Pepco Holdings Conference Call – First-Quarter 2005 Earnings Review

Monday, April 25, 2005

Pepco Holdings, Inc. (NYSE: POM) has scheduled its earnings conference call for Wednesday, May 11, at 10:00 a.m. EDT. First-quarter 2005 earnings will be released May 9.

Individual investors, members of the media and other interested persons may access the conference call on the internet at www.pepcoholdings.com or by calling 1-866-800-8651 before 9:55 a.m. The pass code for the call is 19719247. International callers may access the call by dialing 1-617-614-2704, using the same pass code 19719247. An on-demand replay will be available for seven days following the call. To hear the replay, dial 1-888-286-8010 and enter pass code 79183987. If calling internationally, dial 1-617-801-6888 and enter the same pass code 79183987. An audio archive will be available at PHI’s Web site.

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NOTE: If any non-GAAP financial information (as defined by the Securities and Exchange Commission in Regulation G) is used during the earnings conference call, a presentation of the most directly comparable GAAP measure and a reconciliation of the differences will be available at www.pepcoholdings.com/investors/index_financial release.html.

Through its subsidiaries Atlantic City Electric, Delmarva Power and Pepco, PHI delivers regulated electricity and natural gas service to more than 1.8 million customers in the District of Columbia, Delaware, Maryland, New Jersey and Virginia. PHI provides competitive energy products and services to residential and commercial customers through Conectiv Energy and Pepco Energy Services.