Alta Wind Energy Center II
Kern County
Overview
- Reported capacity
- 150 MW
- EIA-reported operating capacity; nameplate, seasonal, AC/DC, and unit ratings may differ.
- Technology
- Onshore Wind Turbine
- Primary generation technology.
- Registry anchor
- Plant 57291
- Alta Wind II, LLC · Kern County · CAISO
- Operating status
- Operating
Infrastructure record
- Alternate name
- Alta Wind Energy Center I, II, III & IV
- Turbines
- 44
- Manufacturers
- Vestas
- In service
- 2011-01
Profile
- Grid role
- Non-dispatchable wind generation resource in CAISO.
- Physical build
- Operational 150 MW onshore wind project comprising 50 Vestas V-90-3.0 turbines, each rated at 3.0 MW.
Structured profile
- Reported capacity
- 150 MW
Onshore Wind Turbine
- Operating status
- operating
Alta Wind Energy Center II is operating.
- Location
- Kern County
CAISO
- Operator
- Alta Wind II, LLC
- Asset role
- wind
CAISO · Kern County
Generation and physical site
EIA plant 57291 · Inventory for Sep 2026.
Reported operating nameplate by technology
- Wind
- 150 MW
Generator records (1)
| Generator | Technology | Status | Power (MW) | Energy (MWh) |
|---|---|---|---|---|
| AW02 | Onshore Wind Turbine | Operating | 150 | Unknown |
- Physical map location · OpenStreetMap
- 35.01972, -118.30506
- Filed location · EIA
- 35.02389, -118.29530
Registered plants sharing this mapped site
Related assets
Similar plants ranked by technology, capacity, and distance.
Units and generators
Current generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| AW02 | 150 MW 150 MW summer | Onshore Wind Turbine WT | Jan 2011 | Operating |
Performance
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Peer context
- Technology capacity
- 150 MW
- Onshore Wind Turbine
- National rank
- #451
- of 1,374 operating peers
- CA rank
- #9
- of 110 operating peers
Monthly generation
Download CSVLatest 12 months
364.6 GWh
Reported net generation
Latest report
Dec 2024
EIA-923 monthly filing
2024 capacity factor
27.7%
Using current reported nameplate capacity
Grid and market context
Deterministic links to ERCOT market resources, price records, outage disclosures, queue records, and nearby infrastructure. Candidate joins remain labeled until corroborated.
Market registration
CAISO resource registryCommercial, land, and environmental record
Source-backed project transactions, agreements, land records, permits, and environmental disclosures. Portfolio and adjacent-project facts remain explicitly scoped.
Land and environmental record
Environmental Review Identifier
Dec 10, 2008
California CEQA State Clearinghouse number 2008121044; lead agency Kern County
The California CEQA record for Alta Oak Creek Mojave Wind Project lists State Clearinghouse number 2008121044. Alta Wind II, LLC is named among the project applicants.
Shared Project Land Area
Aug 2009
Shared Alta Oak Creek Mojave environmental-review site: approximately 9,300 acres total; approximately 2,772 acres proposed for rezoning (Alta II-V combined)
Kern County CEQA record names Alta Wind II, LLC together with Alta III, IV, and V. The joint site comprises approximately 9,300 acres, of which approximately 2,772 acres were subject to requested zone change. Record does not allocate separate acreage to Alta II alone.
Water Resource Impact
Nov 12, 2010
Streambed impacts: 440 linear feet temporary disturbance; 542 linear feet permanent disturbance (Alta II-V combined)
California environmental record for Alta Oak Creek Mojave project (Alta II-V combined) reports 440 linear feet of temporary streambed disturbance and 542 linear feet of permanent disturbance. Record does not apportion impacts to Alta II's turbines alone.
Related parties and identifiers
Parties, market resources, and identifiers tied to this asset, with owner, operator, developer, EPC, compliance provider, and interconnecting entity roles kept separate.
Relationship graph
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AssetOwner / operatorFinancier
Timeline and sources
Project milestones and public references behind the asset profile.
Project timeline
- Development-Platform AcquisitionSource
Terra-Gen Power acquired the Alta Wind Energy Center development platform from Allco Finance Group.
- Generator enters operation