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150 MW Wind operating in Kern, CA — California Independent System Operator
150 MW
Nameplate Capacity
1
Generators
unit
Onshore Wind Turbine
Technology
2011
Operating Since
Coordinates
42.2346, -93.3886
County
Kern, CA
Nearby Plants
Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Alta Wind II, LLC | Longroad Energy | — |
| Owner(s) | NRG Renew | Everpower | — |
| Status | Operating | operating | — |
GEM identifies the owner as Everpower
This entity is not yet in the GEM ownership database — chain unavailable.
Alta Wind Energy Center II is a 150 MW wind power plant located in Kern County, California. The facility, which began operating in 2011, is owned and operated by Alta Wind II, LLC. It utilizes a single generator consisting of onshore wind turbine technology. The plant is interconnected to the California Independent System Operator (CAISO) balancing authority within the Western Electricity Coordinating Council (WECC) NERC region.
The facility's wind turbines have a hub height of 80 meters and a rotor diameter of 90 meters. The turbines were manufactured by Vestas, and the model is V90-3.0. In its most recent year of operation, the plant generated 364,602 MWh, achieving a capacity factor of 27.6%. Alta Wind Energy Center II ranks as the 9th largest wind farm out of 28 in California, and 519th out of 734 nationally. The plant has a reported power purchase agreement (PPA) price of $11.73 per MWh, according to FERC data.
Generated from EIA, GEM, and public data sources
ISO/RTO
CAISO
Market
ISO/RTO Member
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
17.7K MWh
Latest Month
364.6K MWh
Annual Generation
27.6%
Capacity Factor
Alta Wind II, LLC · Data from 2019–2025
$11.7/MWh
PPA Price
Market Position
ISO/RTO Market
CAISO
LMP Node
TOT162W3_6_GN001
Pricing Hub
TH_SP15_GEN-APND
Location Type
Pricing Node
Node Source
Curated node match
Last updated 2026-03-26
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ask pi about Alta Wind Energy Center IICalifornia Independent System Operator (CISO)
Grid Voltage
220.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP