FirstEnergy Corp., through its subsidiaries, generates, transmits, and distributes electricity in the United States. The company operates through Regulated Distribution, Regulated Transmission, and Competitive Energy Services segments. It owns and operates coal-fired, nuclear, hydroelectric, oil and natural gas, wind, and solar power generating facilities. The company also provides energy-related products and services to retail and wholesale customers. It operates 24,551 circuit miles of overhead and underground transmission lines; and electric distribution systems, including 272,763 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 160,259,826 kilovolt-amperes. The company serves approximately six million customers 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.