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Valley (CA)

Natural gas power plant · Los Angeles County, California

Nameplate capacity
691 MW
Rank in California
#22
of 1,897 plants
In service since
2001
August 2001

Details

Primary fuel
Natural gas
Technology
Natural Gas Fired Combined Cycle
Operator
Los Angeles Department of Water & Power
County
Los Angeles County
Generating units
4
Share of state capacity
0.64%
Rank among natural gas plants in California
#15 of 309
EIA plant code
408

Generating units

Individual generating units at Valley (CA)
UnitTechnologyNameplateSummerOnlineStatus
8Natural Gas Fired Combined Cycle264 MW209 MW2003Operating
6Natural Gas Fired Combined Cycle183 MW155 MW2003Operating
7Natural Gas Fired Combined Cycle183 MW155 MW2003Operating
5Natural Gas Fired Combustion Turbine61 MW44 MW2001Operating

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

Otay Mesa Generating ProjectNatural gas711 MW
AES Huntington Beach Energy ProjectNatural gas699 MW
Sunrise Power LLCNatural gas685 MW
Menifee Power BankBattery storage680 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 691 MW solar plant and a 691 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