Alta Wind Energy Center I
Wind power plant · Kern County, California
Nameplate capacity
150 MW
Rank in California
#178
of 1,897 plants
In service since
2011
January 2011
Details
- Primary fuel
- Wind
- Technology
- Onshore Wind Turbine
- Operator
- Alta Wind I, LLC
- County
- Kern County
- Generating units
- 1
- Share of state capacity
- 0.14%
- Rank among wind plants in California
- #9 of 111
- EIA plant code
- 57282
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| AW01 | Onshore Wind Turbine | 150 MW | 150 MW | 2011 | Operating |
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
| Pacific Wind LLC | Wind | 152 MW |
| North Rosamond Solar LLC | Solar | 151 MW |
| Alta Wind Energy Center II | Wind | 150 MW |
| Alta Wind Energy Center III | Wind | 150 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 150 MW solar plant and a 150 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