The eclipse set to darken skies next month threatens to sideline solar farms and rooftop panels in a wide swath of the U.S., wiping out enough power generation to supply about 7 million homes.
This rare event, during which the moon will completely obscure the sun, will cast a shadow along a 70-mile-wide (113-kilometer) corridor stretching from Oregon to South Carolina on Aug. 21. Based on a Bloomberg calculation of grid forecasts, more than 9,000 megawatts of solar power may go down. That’s the equivalent of about nine nuclear reactors.
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