An array of photovoltaic cells on a roof
Bildnummer 11890921
| Solar panels. Array of photovoltaic cells (solar panels) on a roof. The cells contain a semicon- ducting material which converts sunlight directly into electricity. Solar power is a renewable source of energy and does not contribute to global warming. As photovoltaic cells do not work in low light,residences which use solar power must have a reserve power supply,such as batteries which store excess power during the day. Photographed at the Schwarzwald-Einoedhof "Rappenecker-Hof" near Freiburg,Germany. The houses in this research project have all their power needs met by a combination of solar power and energy-saving devices | |
| Lizenzart: | Lizenzpflichtig |
| Credit: | Science Photo Library / Maximilian Stock |
| Bildgröße: | 3488 px × 4666 px |
| Modell-Rechte: | nicht erforderlich |
| Eigentums-Rechte: | nicht erforderlich |
| Restrictions: |
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