Design, trade, rental, installation, maintenance in Switzerland and abroad of sanitary installations, traditional heating systems, floor and ceiling heating systems, air conditioning systems, fire extinguishing systems, irrigation systems, water treatment plants, thermal power plants, geothermal power plants, installation of condensing boilers, heat pump systems, installation of solar panels, methane gas systems, centralized vacuum cleaner systems, controlled mechanical ventilation systems, pool systems, installation of flues and repair. Purchase, sale, processing, design and construction of scale models of all kinds. Trade in accessories and tools for hobbies, modeling, toys, electronic equipment and similar products, as well as articles for leisure activities of all kinds; organization of related events. Painting and fireproofing treatments. Trade, import, export, rental of solar, thermal or photovoltaic panels, LEDs and any other product serving the production of energy from renewable sources and energy saving. Installation, monitoring, maintenance and management on its own or on behalf of third parties of renewable energy production plants, in particular solar energy. Production and sale in Switzerland and abroad of electricity from renewable sources. The company can acquire, directly or indirectly, interests and participations in other companies or enterprises with a similar or related object or connected to its own, as well as any and all types of activities aimed at promoting the social purpose. The company can purchase commercial real estate and establish branches in Switzerland and abroad.