General James M. Gavin Power Plant is a 2.6-Gigawatt coal-fired power station in Cheshire, Ohio, USA operated by American Electric Power. Named after James M. Gavin, it is the largest coal fired power facility in Ohio, and one of the largest in the nation. Its two units, rated at 1300 MWe each, were launched into service in 1974 and 1975. The plant is connected to the grid by 765 kilovolt transmission lines (the highest rated voltage in the United States).