The advantage of agricultural properties lies in the size of their usable roof area. The bigger the barn and the pv-system, the lower the costs per kW. Roof areas –on barns, stables, free spaces, etc.- offer ideal conditions. This pv-plant near Muenster covers an area of 1000m² and produces 120 kW (ca. 9m² per kW). The installation and the connection to the main supply has been realized within a few weeks.