Allegheny Energy was an electric utility headquartered in Greensburg, Pennsylvania. It owned and operated electric generation facilities and delivered electric services to customers in Pennsylvania, West Virginia, Maryland, and Virginia. Allegheny Energy was incorporated in Maryland in 1925[1] as West Penn Electric Company.[2] One of its predecessor companies dates back to the formation of West Penn Power on January 31, 1907.
The company had three primary businesses: "merchant generation," which operated power plants primarily in Pennsylvania and West Virginia; "transmission expansion;" and "utility operations," consisting of transmission and distribution operations serving 1.6 million customers,[3] primarily in small towns and rural areas.
Allegheny merged with FirstEnergy in February 2011.
Subsidiary companies
Allegheny Energy operated its electric distribution operations under the trade name Allegheny Power. Its regulated subsidiaries were West Penn Power (serving Southwestern and Central Pennsylvania), Monongahela Power ("Mon Power," serving Northern and Southern West Virginia, as well as