Solar panels. Array of solar panels (photovoltaic cells) on the roof of a building. The cells contain a semiconducting material which converts sunlight directly into electricity. Solar power is a renewable,inexhaustible source of energy and does not contribute to global warming. As solar 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. Solar energy is relatively cheap,as once the panels are installed,they continue to produce electricity indefinitely. Photographed in Germany | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Steger, Volker |
Taille de l’image : | 2480 px × 3595 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |