Solar roof, Koblenz, Rhineland-Palatinate, Germany, Europe

above aerial alternative alternative angle architecture birds birds eye building buildings business cell cells clean collector collectors conscious day daylight daytime during eco eco friendly ecofriendly economic economical economically economy electricity elevated energies energy engineering environment environmentally europe european exterior exteriors eye federal flat flat roof flat roofed flat roofs flatroof flatroofs frg friendly from generation german germany green heater heaters high high angle industrial industry koblenz lot lots many modern module modules nobody numerous of outdoor palatinate panel panels perspective perspectives photo photograph photographs photos photovoltaic photovoltaics power renewable republic rhineland rhineland palatinate roof roofed roofs several shot shots solar solar source sources supply system technic technical technology the top topview topviews view views