POWER TOWER: By focusing sunlight with mirrors onto central towers, such concentrating solar power plants turn the sun's heat into electricity. Courtesy of eSolarFrom Scientific American:
Turning the sun's heat into electricity--by concentrating it with thousands of mirrors onto a tower.
In southern California's Antelope Valley, 24,000 silver-bright mirrors have been positioned to reflect light on two 50-meter-tall towers. And at 11:08 A.M. local time Wednesday, this concentrated light heated steam in those towers to turn a turbine—the first "power towers" in the U.S. to convert the sun's heat into electricity for commercial use.
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