Headquartered in Akron, Ohio, FirstEnergy includes one of the nation''s largest investor-owned electric systems, more than 24,000 miles of transmission lines that connect the Midwest and Mid-Atlantic regions, and a regulated generating fleet with a total capacity of more than 3,500 megawatts. Working knowledge of garage work, including performing general mechanical and electrical repair work on heavy trucks, cars, trailers, and field equipment.