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Palomar Energy

Natural gas power plant · San Diego County, California

Nameplate capacity
559 MW
Rank in California
#36
of 1,897 plants
In service since
2005
October 2005

Details

Primary fuel
Natural gas
Technology
Natural Gas Fired Combined Cycle
Operator
San Diego Gas & Electric Co
County
San Diego County
Generating units
3
Share of state capacity
0.52%
Rank among natural gas plants in California
#26 of 309
EIA plant code
55985

Generating units

Individual generating units at Palomar Energy
UnitTechnologyNameplateSummerOnlineStatus
STGNatural Gas Fired Combined Cycle229 MW222 MW2006Operating
CTG1Natural Gas Fired Combined Cycle165 MW180 MW2005Operating
CTG2Natural Gas Fired Combined Cycle165 MW180 MW2005Operating

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

Blythe Energy IncNatural gas591 MW
Topaz Solar FarmSolar586 MW
Cosumnes Power PlantNatural gas557 MW
HarborNatural gas548 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 559 MW solar plant and a 559 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