Green City Energy is a German-based company with a subsidiary in France that specializes in renewable energy projects. They have experience developing solar, biogas, biomass, and wind power projects since 1999, with over 170 installations totaling more than 18 MW of installed capacity. They use innovative financing models involving citizen investment funds to develop local, sustainable energy projects. Their business model involves developing projects, arranging financing, and then transferring the operating assets to funds where citizens can invest as entrepreneurs.