FirstEnergy Corp., a diversified energy holding company, engages in the generation, transmission, and distribution of electricity in the United States. The company operates in Regulated Distribution, Regulated Transmission, and Competitive Energy Services segments. It owns and operates fossil, hydroelectric, nuclear, and wind and solar generating facilities. The company also provides energy-related products and services to wholesale and retail customers. It operates an electric distribution system, including 266,757 miles of overhead pole line and underground conduit carrying primary, secondary, and street lighting circuits, as well as owns substations with a total installed transformer capacity of approximately 144,776,431 kilovolt-amperes. The company distributes electricity through 10 utility operating companies within 65,000 square miles in Ohio, Pennsylvania, West Virginia, Maryland, New Jersey, and New York. FirstEnergy Corp. was founded in 1996 and is headquartered in Akron, Ohio.