News Conference

WHAT:  Pepco to Hold News Conference to Release Additional Details on
             Reliability Enhancement Plan

WHO:    Thomas H. Graham, Pepco Region President and
              William Gausman, PHI Senior Vice President,
              Asset Management and Planning

DATE:   Friday, August 27, 2010

TIME:     2 p.m.

LOCATION:  6918 Seven Locks Road (Seven Locks Park), Cabin John, Md.

For more information, contact Bob Hainey, Media Relations Manager, at (202) 872-2680.

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Pepco, a subsidiary of Pepco Holdings, Inc. (NYSE: POM), delivers safe, reliable and affordable electric service to more than 778,000 customers in Maryland and the District of Columbia.