The first company building featuring this façade is located in Bad Rappenau. 400 PV modules are spread over two hundred ALUCOBOND® tray panels, all around the building. The total annual energy generation is 10,000 kWh. Enough, for instance, to supply two four-person households with electricity all year round. A digital, parametric design process was needed to achieve this: software developed for the Solar Shell calculates the optimal façade to produce the best light yield and, in so doing, the highest electricity yield for each and every location, compass direction and building. This obviously means that every façade has to be different; no location, no building shell can be the same as the next. But, they do have one thing in common: they are all made of ALUCOBOND®, folded into lightweight but very strong factory-assembled tray panels.