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Solar generation in CAISO increased 21% from January through May compared with the same period in 2024, the Energy Information Administration said.
Published June 17, 2026
MCE Solar One solar farm on April 25, 2024, in Richmond, Calif. Between April 2024 and April 2026, utility-scale solar generating capacity grew 19%, to 25 GW, and battery storage capacity grew 79%, to 16 GW, in the California Independent System Operator’s market, the Energy Information Administration found.
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