Apollo Energy Systems is a U.S. multinational alternative energy corporation headquartered in Pompano Beach, Florida, that develops, produces, and markets fuel cell power plants, electric propulsion systems, and alternative energy generation equipment. The company was founded by Robert R. Aronson in 1966 as the Electric Fuel Propulsion Corporation (EFP) in New Orleans, Louisiana. It later became known as the Electric Auto Corporation (EAC), and in 2001 changed to Apollo Energy Systems.