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Sanborn BESS 4

Battery storage power plant · Kern County, California

Nameplate capacity
47 MW
Rank in California
#468
of 1,897 plants
In service since
2023
November 2023

Details

Primary fuel
Battery storage
Technology
Batteries
Operator
Terra-Gen Operating Co-BESS
County
Kern County
Generating units
1
Share of state capacity
0.04%
Rank among battery storage plants in California
#60 of 142
EIA plant code
65673

Generating units

Individual generating units at Sanborn BESS 4
UnitTechnologyNameplateSummerOnlineStatus
BESSBatteries47 MW47 MW2023Operating

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

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 47 MW solar plant and a 47 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