Figure
CAISO curtailed 3.77 TWh of wind and solar in 2025, nearly four times the 0.97 TWh of 2019, almost all of it solar.
This figure is from the Southern California Edison case study, a primary-source look at how California procured storage and what pointing the same playbook at demand would add.
Cite this figure
Corey Balgeman, "CAISO wind and solar curtailment, 2019-2025," Grid Flexibility, 2026. https://gridflexibility.fyi/case-studies/southern-california-edison/figures/caiso-curtailment-growth
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Last updated: 2026-07-03.
