Sale and installation of photovoltaic solar panels, sale and installation of thermal solar panels as well as all types of roofing work such as renovation or construction including sheet metal work, sale and installation of heating systems and all sanitary work. The company may engage in any financial, commercial or industrial activity directly or indirectly related to its purpose; establish branches or subsidiaries in Switzerland and abroad; participate in other companies in Switzerland and abroad, acquire companies with an identical or similar purpose or merge with such companies; acquire or sell real estate; grant loans or guarantees to associates or third parties if it serves its interests; carry out all operations and conclude all contracts that are suitable for developing and expanding its purpose or are directly or indirectly related to it.