PV on the facade, ready, go!
Our solution for a building in Berlin, whose roof is already planned, is called ultra-light PV - bonded to the south-facing facade. Particularly when the winter sun is low in the sky, the modules, which weigh only 4 kg/m2 , can provide a high electricity yield, about 70% of the optimum over the year. In this way, the energy costs for the planned swimming pool with heat pump can be noticeably reduced. Also in this case: PV can do more than "beeing flat on the roof"!