From the start of BIPV plant design phase, the aesthetic viewpoint played an important role. The photovoltaic surface was completed with optically matching black powder-coated panels, exactly aligned with the modules. Further, gangways— that partly correspond to the roof ridge—were installed for maintenance operations of the PV plant. Technically, an adjustment of the initial plan was needed. The PV panels were initially meant to be fixed to the building’s steel structure directly, causing probable heat bridges through the concrete roof. The problem was solved with a design modification (Arch. Albert Colz). This highlighted the importance of performing detailed evaluations in designing complex components as a BIPV system.