Alta Wind Energy Center I — Plant Summary
- EIA Plant ID
- 57282
- Capacity
- 150 MW
- Primary Fuel
- Wind
- Technology
- Onshore Wind Turbine
- Status
- Operating
- Location
- Kern, CA
- Operating Since
- 2011
- Generators
- 1
- Operator
- Alta Wind I, LLC
- Parent Company
- —
- Annual Generation
- 434,672 MWh
- Capacity Factor
- 32.9%
- Balancing Authority
- California Independent System Operator
- ISO/RTO
- CAISO
- NERC Region
- WECC
Alta Wind Energy Center I
OperatingWind
Ranked #11 of 116 Wind plants in CA#511 of 1442 nationally
150 MW Wind operating in Kern, CA — California Independent System Operator
EIAGEMWD
150 MW
Nameplate Capacity
1
Generators
unit
Onshore Wind Turbine
Technology
2011
Operating Since
Location
Coordinates
42.1027, -93.2792
County
Kern, CA
Nearby Plants
- FPL Energy Story Wind LLCWind150 MW · 0.6 km
- State CenterDistillate Oil6.3 MW · 13.5 km
- State Route 64N Community Solar FarmSolar1.2 MW · 14.7 km
Ownership & Operator
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 | — |
Ownership Chain
GEM identifies the owner as Terra-Gen
This entity is not yet in the GEM ownership database — chain unavailable.
About
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
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
California Independent System Operator
Grid Voltage
220 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
24.6K MWh
Latest Month
434.7K MWh
Annual Generation
32.9%
Capacity Factor
Jan 2022 – Dec 2024
Financial DataBeta
Source: FERC Electric Quarterly ReportsHIGH
$11.7/MWh
PPA Price
Alta Wind I, LLC
Contract Seller
Per-Unit Cost Trends
Pricing & Market Data
MEDIUM confidenceMarket 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