As part of the Solar Generation Project twenty-four young adults from Kenia, Poland, USA and Switzerland build a 160 m2 photovoltaic system and install a 60 m2 thermal solar system on the roof of the youth hostel St. Moritz. The sustainable generated energy is a substantial contribution to the swiss „energy-city“ labelling of the community St. Moritz. It allows the youth hostel, to achieve the building efficiency standard for swiss buildings (minergy).