As early as 2004, after the Bruchwegstadion was redeveloped, the club installed a photovoltaic system on one of the stands. Ecological considerations also played a major role in building and outfitting the Opel Arena. One of the then three largest solar roof systems on a football stadium in Germany was installed there.
It generated around 700,000 kWh of electricity per year and fed it into the public grid, thereby avoiding roughly 470 tons of CO2 emissions annually that would have been produced through conventional power generation. In 2007, the city of Mainz honored the club for its “exemplary operational environmental management” as an “Ökoprofit business.”
