Youth Solar of Greenpeace, together with a secondary school class of Lauperswil, install a 480 m2 / 80 kWp photovoltaic system on the roof of the farm of Simon Hertig in Zollbrück, Lauperswil. In the first phase of construction the substructure gets installed. In the second phase the cables get installed. After this the first panels can be mounted - a total of 384 pieces.