Solar and wind power curtailments are rising in California, balances supply and demand growth of wind and solar power in California.
, the grid operator for most of the state, is increasingly curtailing solar- and wind-powered electricity generation as it balances supply and demand during the rapid growth of wind and solar power in California.
Grid operators must balance supply and demand to maintain a stable electric system. The output of wind and solar generators are reduced either through price signals or rarely, through an order to reduce output, during periods of:largely a result of congestionIn 2022, CAISO curtailed 2.4 million megawatthours of utility-scale wind and solar output, a 63% increase from the amount of electricity curtailed in 2021. As of September, CAISO has curtailed more than 2.
Solar accounts for almost all of the energy curtailed in CAISO—95% in 2022 and 94% in the first seven months of 2023. CAISO tends to curtail the most solar in the spring when electricity demand is relatively low and solar output is relatively high.CAISO has increasingly curtailed renewable generation as renewable capacity has grown in California. In 2014, a combined 9.0 gigawatts of wind and solar capacity had been built in California. As of July 2023, that number had grown to 17.6 GW.
that can quickly respond to sudden increases and decreases in demand such as battery storage technologies. California has 4.9 GW of battery storage, and developers plan to add another 7.6 GW by the end of 2024, according to ourI don't like paywalls. You don't like paywalls. Who likes paywalls? Here at CleanTechnica, we implemented a limited paywall for a while, but it always felt wrong — and it was always tough to decide what we should put behind there.
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