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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
42.1027, -93.2792
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 I, LLC | Terra-Gen | — |
| Owner(s) | NRG Renew | Terra-Gen | — |
| Status | Operating | operating | — |
GEM identifies the owner as Terra-Gen
This entity is not yet in the GEM ownership database — chain unavailable.
Alta Wind Energy Center I is a 150 MW wind power plant located in Kern County, California. The plant, which began operating in 2011, is owned and operated by Alta Wind I, LLC. It utilizes a single generator consisting of onshore wind turbines. The facility is interconnected to the California Independent System Operator (CAISO) balancing authority within the Western Electricity Coordinating Council (WECC) NERC region. The plant is ranked 14th out of 28 wind facilities in California, and 514th nationally out of 734 wind facilities.
The plant's wind turbines are manufactured by GE Wind, model GE1.5-77, with a rotor diameter of 77 meters and a hub height of 80 meters. In its most recent year of operation, Alta Wind Energy Center I generated 434,672 MWh, achieving a capacity factor of 32.9%. Financial data indicates a power purchase agreement (PPA) price of $11.73 per MWh.
Generated from EIA, GEM, and public data sources
ISO/RTO
CAISO
Market
ISO/RTO Member
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
24.6K MWh
Latest Month
434.7K MWh
Annual Generation
32.9%
Capacity Factor
Alta Wind I, LLC · Data from 2019–2025
$11.7/MWh
PPA Price
Market Position
ISO/RTO Market
CAISO
LMP Node
MIDWIND_6_N004
Pricing Hub
TH_SP15_GEN-APND
Location Type
Pricing Node
Node Source
Curated node match
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ask pi about Alta Wind Energy Center ICalifornia Independent System Operator (CISO)
Grid Voltage
220.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP