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Daggett 1

Battery storage power plant · San Bernardino County, California

Nameplate capacity
114 MW
Rank in California
#246
of 1,897 plants
In service since
2025
September 2025

Details

Primary fuel
Battery storage
Technology
Batteries
Operator
Daggett Solar Power 1 LLC
County
San Bernardino County
Generating units
1
Share of state capacity
0.11%
Rank among battery storage plants in California
#27 of 142
EIA plant code
67931

Generating units

Individual generating units at Daggett 1
UnitTechnologyNameplateSummerOnlineStatus
DAG1Batteries114 MW114 MW2025Operating

Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.

Similarly sized plants in California

Edwards Sanborn E5Solar115 MW
Border Hybrid Energy CenterNatural gas115 MW
Marathon Bay Area CogenNatural gas114 MW
Separator (Etiwanda) BESSBattery storage113 MW

About this data

From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 114 MW solar plant and a 114 MW nuclear plant have the same entry here and produce very different amounts of electricity.

“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All California power plants · What California actually generates