The design, installation, marketing, import-export, after-sales service of alternative energy systems, geothermal systems, heat pumps, solar thermal systems, photovoltaic systems, heating systems, sanitary systems, air conditioning systems, boilers and burners. The promotion of the production and use of renewable energy. The promotion of energy-saving measures. Consulting in the field of production, use and saving of renewable energy for individuals, entities, companies or associations. Assistance in the administrative procedures necessary to obtain the relevant authorizations for the installation of renewable energy systems. The company may also acquire, restructure and sell real estate, participate in other companies with similar purposes and open branches and subsidiaries in Switzerland and abroad.