Conergy is a company in the solar energy industry providing project development, financing, EPC and O&M services with more than 750MW installed globally. Conergy is one of the world's largest downstream solar companies. It was founded in 1998 by the former chairman of the board Hans-Martin Rüter and is headquartered in Hamburg, Germany.In March 2005 Conergy was registered at the Frankfurt Stock Exchange with the abbreviation “CGY“ and the ISIN DE 00060 40025.