Pepco Holdings, Inc. (PHI), headquartered in Washington, D.C., delivers electricity and natural gas to about 1.9 million customers in Delaware, the District of Columbia, Maryland and New Jersey. Through its subsidiaries Pepco, Delmarva Power and Atlantic City Electric, PHI delivers regulated electricity and natural gas service. PHI provides competitive wholesale generation services through Conectiv Energy and retail energy products and services through Pepco Energy Services.