Parabolic troughs at a solar power station. A parabolic trough consists of a linear parabolic reflector that concentrates light onto a receiver tube positioned directly above the middle of the mirror. The tube is filled with a working fluid, such as molten salt, which is heated to high temperatures by the focused sunlight, and used as a heat source for a power generation system. Photographed at the Solana Generating Station near Gila Bend, Arizona, USA, which generates a total of 280 megawatts (MW) of energy, from two 140 MW steam turbine generators; enough to power 70, 000 homes. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / West, Jim |
Bildgröße: | 5760 px × 3367 px |
Modell-Rechte: | nicht erforderlich |
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