The German Society for Solar Energy e.V. (DGS) was founded in Munich in 1975. The approximately 2,800 individual members and member companies are organized regionally in 36 sections and 6 state associations. The DGS sees itself as an intermediary between scientists, engineers, architects, the building trade, crafts, industry, authorities and parliaments. Project work, public relations and e.g. the development of a quality mark for solar systems help.