Aerial view, solar cells on the roof of a high school, Bottrop, Ruhr Area, North Rhine-Westphalia, Germany, Europe

above aerial aerial alternative alternative angle architecture area area basin birds birds eye bottrop building buildings cells clean collector collectors conscious day daylight daytime during eco eco friendly ecofriendly educational electricity elevated energies energy environmentally europe european exterior exteriors eye federal frg friendly from generation german germany grammar green heater heaters high high angle institution institutions module modules nobody north nrw of on outdoor panel panels perspective perspectives photo photograph photographs photos photovoltaic photovoltaics power renewable republic rhine rhine westphalia rhine westphalian roof roofs ruhr school schools shot shots solar source sources system the top topview topviews view views westphalia westphalian