Aerial view, photovoltaic system on a flat roof, Hollerdau, Bavaria, Germany, Europe

above aerial aerial alternative alternative angle architecture bavaria bavarian birds birds eye building buildings clean day daylight daytime detail details during electricity elevated energies energy engineering europe european exterior exteriors eye federal flat frg from generation german germany high high angle hollerdau industry lot lots many module modules numerous of on outdoor overlook overview panel panels panoramic perspective perspectives photo photograph photographs photos photovoltaic photovoltaics power renewable republic roof shot shots solar source sources southern supply system technic technical technology the top topview topviews view views