Headquartered in Louisville, Kentucky, E.ON U.S. is a diversified energy company with operations. Its core businesses are electric generation, project development, electric and gas supply services, and asset-backed energy trading.

E.ON U.S. operates in the midwestern USA and in the international markets. It serves more than 1 million customers, has a generation capacity of over 9,000 megawatts, and is one of the lowest-cost providers of energy services in the USA.