What Happens to Solar Power in an Eclipse? We’ll Find Out Monday - The New York Times

Tangentially, see Bill Joy Finds the Jesus Battery (Wired)

"Unlike most eclipse-watchers in the United States, Eric Schmitt wouldn’t mind seeing a few clouds in the sky when the moon starts blotting out the sun on Monday.

“A cloudy morning might even be helpful for us,” he said.

That’s because, as the vice president for operations at the California Independent System Operator, which oversees the state’s electric grid, Mr. Schmitt will be dealing with an unusual challenge. As the eclipse carves a long shadow over California on Monday morning, it is expected to knock offline more than 5,600 megawatts’ worth of solar panels at its peak — a big chunk of the 19,000 megawatts of solar power that currently provide one-tenth of the state’s electricity. The California I.S.O. plans to fill the void by ramping up natural gas and hydroelectric power plants."

What Happens to Solar Power in an Eclipse? We’ll Find Out Monday - The New York Times