Renewable electricity provided just shy of 100% of California's electricity demand on April 30th. At 2:50 p.m., "we reached 99.87% of load served by all renewables, which broke the previous record of 97.58%," said Anna Gonzales of the California Independent System Operator, or CAISO, which oversees the state's bulk electric power system and transmission lines. Two thirds of the 18,000 megawatts needed was provided by solar power loaded into the energy grid or 12,391 megawatts. The rest came from wind, geothermal and other renewable sources.

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