In this project, the beautiful full black glass panels from German manufacturer, Soluxtec, were chosen. The panels consist of a layer of glass, a layer of solar cells, and a layer of glass on the back (in contrast to the plastic foil normally found with ordinary solar panels). This ensures the solar panels are less affected by moisture, temperature differences and mechanical stress. Results? A longer lifespan and a performance guarantee of 88% after 30 years.