The cooperative aims to provide its members with economic benefits through mutual self-help by promoting renewable energies and sustainable energy use, particularly through the production, storage, and trading of renewable energy. The cooperative may engage in all commercial, financial, and other activities that are related to the purpose of the cooperative or are suitable to promote it. The cooperative may offer consultations and other services in the fields of renewable energies and energy efficiency to third parties as well. The cooperative may join or support organizations and actions that it feels ideologically connected to. The cooperative may purchase and encumber real estate. The cooperative may set up, connect, and operate photovoltaic and other facilities. The cooperative may lease (roof) surfaces for the installation of photovoltaic and other facilities.