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Spain is now the world's largest generator of electricity from solar power plants. Spanish solar energy plants utilise parabolic trough technology combined with a thermal storage system using molten salt batteries to maximise their power generating capacity. The parabolic trough is constructed...

...million kW-hr of electricity annually, reportedly enough to power about 14,000 homes. Instead of the familiar photovoltaic solar panels, the facility uses 760 parabolic troughs holding about 182,000 curved mirrors to concentrate sunlight on glass and steel receiver tubes. Fluid circulating...

...the facility uses parabolic troughs holding curved mirrors to concentrate sunlight on glass and steel receiver tubes. Fluid circulating through the tubes reaches temperatures as hot as 735 F and is used to generate steam, which drives a turbine and generator to produce electricity. One advantage solar...

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