Interconnection queue › California › Storage

Storage Projects in the California Interconnection Queue

Snapshot of 2026-08-09 · 643 projects

643 storage projects are in the interconnection queue with a California location, totalling 148,091 MW across the 643 that publish a capacity.

Grouped from the ISOs' own fuel codes — see the mapping. Codes we could not match to a published definition are left unclassified rather than assigned here.

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By ISO

ISOProjectsCapacity
CAISO643148,091 MW

By status, as published

StatusProjects
WITHDRAWN473
ACTIVE129
COMPLETED41

Top counties

CountyProjectsCapacity
SAN DIEGO9112,138 MW
KERN6213,316 MW
LOS ANGELES5315,069 MW
FRESNO4210,356 MW
RIVERSIDE3815,908 MW
SAN BERNARDINO349,511 MW
CONTRA COSTA285,219 MW
ALAMEDA274,629 MW
SAN JOAQUIN254,891 MW
SANTA CLARA243,697 MW
TULARE163,712 MW
SAN LUIS OBISPO167,654 MW
ORANGE122,686 MW
IMPERIAL114,313 MW
SOLANO113,665 MW

Largest projects with published capacity

The 12 highest-capacity rows in this page's exact scope, ordered by the capacity the ISO published. Projects without a published capacity are not ranked here and remain included in the totals above.

ProjectISOCountyMWStatusQueue dateProposed operation
EDGEWOOD SOLAR HYBRID
ID 1715		CAISOFRESNO1,700WITHDRAWN2020-04-15not published
EMPIRE
ID 2030		CAISOSAN BERNADINO1,600WITHDRAWN2021-04-15not published
PINEBROOK SOLAR HYBRID ENERGY CENTER
ID 1581		CAISOFRESNO1,500WITHDRAWN2019-04-15not published
NIMITZ 1 GENERATION
ID 1589		CAISOSAN LUIS OBISPO1,500WITHDRAWN2019-04-15not published
SEAWOLF GENERATION
ID 1600		CAISOSAN LUIS OBISPO1,500WITHDRAWN2019-04-15not published
HOLMAN
ID 1889		CAISOMONTEREY1,500ACTIVE2021-04-15not published
ISLAY
ID 1998		CAISOSAN LUIS OBISPO1,500WITHDRAWN2021-04-15not published
IRON HILLS PUMPED STORAGE
ID 1525		CAISORIVERSIDE1,400WITHDRAWN2018-04-16not published
SANBORN HYBRID 3
ID 1632		CAISOKERN1,400ACTIVE2019-04-15not published
ETERNAL PUMPED STORAGE
ID 1759		CAISORIVERSIDE1,400WITHDRAWN2020-04-15not published
ETERNAL 2
ID 2050		CAISORIVERSIDE1,400WITHDRAWN2021-04-15not published
ANGELENO SOLAR FARM
ID 1625		CAISOLOS ANGELES1,150ACTIVE2019-04-15not published

Where each number came from

ISOWe last readSource last changedSource
CAISO2026-08-092026-08-09 (changed this snapshot)source file

Compiled from each ISO's own published interconnection queue report. Queue position is not a permit, a contract, or a guarantee that a project will be built; most projects in every queue are eventually withdrawn. Figures are reproduced as published, are provided for informational purposes only, and carry no warranty of accuracy or completeness. Always verify against the ISO's own report before relying on any figure.

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