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This building has been awarded by the German Sustainable Building Council (DGNB) as the first energy-efficient supermarket in the world since it has been conceived to consume 50% less energy than a standard building. Thanks to the combination of different service devices with a good insulation of the building envelope. PV modules are installed on the roof and glazed modules are installed on the canopy.
Source: RP-technik; Rewe
| Project | Rewe Green Building |  |
| Location | Bonn-Rudow (D) | |
| Latitude | 52° 25' | |
| Complection year | 2009 | |
| Architect | Koch Architects, Dusseldorf | |
| Type | Supermarket | |
| Category | New | |
| Surrounding | Urban | |
| Technology | Multicrystalline | |
| Installed Power | 3.1 kWp (canopy); 133 (Total) | |
| Orientation | South - East - West - Nord |
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| PV Module | VSG/VSG-1SO -Ertex Solar (canopy) | |
| Dimensions | 2000 m2 (total) | |
| Transparency |
30% (canopy); opaque (roof) |