Those with an active electricity supply and a legally existing available space can install a Photovoltaic System (roof, pergola, and space on the plot). This space must be on your property or be legally used by you. The Photovoltaic System is suitable for installation in both single-family homes and apartment buildings. You must have exclusive use of the roof or a portion of the roof with the written consent of the other owners for installation in an apartment building. If more than one apartment owner wants to install a Photovoltaic System, separate systems can be installed on the shared roof. The basic requirement is that there is enough space on the roof for each Photovoltaic System to be installed and connected to the corresponding supply.