Crimson

Battery storage power plant · Riverside County, California

Nameplate capacity
350 MW
Rank in California
#61
of 1,928 plants
In service since
2022
October 2022

Details

Primary fuel
Battery storage
Technology
Batteries
Operator
RE Crimson LLC
County
Riverside County
Generating units
2
Share of state capacity
0.32%
Rank among battery storage plants in California
#3 of 142
EIA plant code
65140

Generating units

Individual generating units at Crimson
UnitTechnologyNameplateSummerOnlineStatus
SWSH1Batteries200 MW200 MW2022Operating
SWSH2Batteries150 MW150 MW2022Operating

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

Arlington Energy Center IISolar365 MW
ProximaSolar352 MW
Easley SolarBattery storage350 MW
Scarlet II HybridSolar350 MW

About this data

From EIA’s inventory of operable generators, August 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 350 MW solar plant and a 350 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