Pepco to make reliability upgrades at Buzzard Point

Washington, D.C., January 9, 2012 — The Potomac Electric Power Co. filed with the Public Service Commission of the District of Columbia a formal notice of its intent to make major reliability improvements to the Buzzard Point Substation.

Pepco plans to increase the capacity of two underground transmission circuits between the Buzzard Point Station in Southwest, Washington, D.C. and Pepco’s Ritchie Substation in Seat Pleasant, Maryland.

The proposed transmission upgrades are necessary to maintain reliable electric service, comply with updated standards from the North American Electric Reliability Corporation for local distribution companies that maintain transmission lines and substations, and to address the projections of the regional electric grid operator, PJM Interconnection LLC, for power and reliability protocols on Pepco’s transmission system.

Pepco is proposing to begin construction of the transmission upgrades in the fall of 2012 with completion targeted for late spring 2014.

Pepco Holdings, Inc., the parent company of Pepco, previously requested and obtained PJM’s approval to retire the generation units at Buzzard Point. The generation units are only used a limited number of hours annually. PJM studied the effects of the planned shutdown and determined that the generation units can be retired.

Pepco, a subsidiary of Pepco Holdings, Inc., delivers electric service to more than 789,000 customers in Maryland and the District of Columbia.

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