Application of renewable energy sources (in particular the use of solar energy in general and solar collectors in particular), promotion and dissemination of efficient and environmentally friendly energy use, sale of engineering, know-how, products and entire plants from the energy sector, provision of general consulting services in the energy sector as well as marketing and sale of laser welding systems. The company may establish branches in Switzerland and abroad, take over the operation of related business activities, participate in companies of all kinds and acquire, manage and sell real estate.