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Alta Wind X

Wind power plant · Kern County, California

Nameplate capacity
138 MW
Rank in California
#204
of 1,897 plants
In service since
2014
January 2014

Details

Primary fuel
Wind
Technology
Onshore Wind Turbine
Operator
Alta Wind X, LLC
County
Kern County
Generating units
1
Share of state capacity
0.13%
Rank among wind plants in California
#17 of 111
EIA plant code
58394

Generating units

Individual generating units at Alta Wind X
UnitTechnologyNameplateSummerOnlineStatus
AW10Onshore Wind Turbine138 MW138 MW2014Operating

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

Midway Peaking LLCNatural gas140 MW
Kerckhoff 2Hydro140 MW
HaasHydro135 MW
Pine Tree Wind Power ProjectWind135 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 138 MW solar plant and a 138 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