Figure
California's battery capacity grew from 0.55 GW in 2020 to about 15 GW by the start of 2026, scaled on three policy supports: a CPUC procurement mandate, a resource-adequacy capacity payment, and the federal investment tax credit.
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, "California battery storage capacity, 2020-2026," Grid Flexibility, 2026. https://gridflexibility.fyi/case-studies/southern-california-edison/figures/capacity-ramp
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Last updated: 2026-07-03.
