Another Solar Record Set, Renewables Power Nearly Quarter of California

California solar on a cloudy day | Photo: Steve Rider/Flickr/Creative Commons License

Yet another milestone in California's quest to go solar: the state's industrial-sized solar power producers pumped more than 4,500 megawatts into the grid around noon on Monday.

According to the California Independent System Operator (CaISO), the agency that runs the grid serving most of California, utility-scale solar power plants set a new record of 4,566 megawatts of output at 12:03 p.m. on May 19.

Around 575 megawatts of that noontime peak came from solar thermal plants, which use the sun's energy to generate steam which in turn turns turbines. The remainder came from photovoltaic panels, which convert sunlight directly into electricity.

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