Alta Wind Energy Center I
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 57282
- Alta Wind I, LLC · Kern County · CAISO
- Operating status
- Operating
- Grid connection
- Windhub Substation
- 220 kV · Southern California Edison Co.
- Commercial operation
- January 2011
- Best-supported operating milestone.
Infrastructure record
- Alternate name
- Alta Wind Energy Center I, II, III & IV
- Turbines
- 44
- Manufacturers
- Vestas
- In service
- 2011-01
Profile
- Operating status
- Alta Wind Energy Center I is currently operating; a closure or retirement is listed for August 2, 2026.
- Grid role
- Operating onshore wind generation
- Grid connection
- Windhub Substation · 220 kV · Southern California Edison Co.
- Physical build
- Operational 150 MW onshore wind plant with one EIA generating unit (AW01), installed with 100 GE 1.5-MW SLE wind turbines.
Structured profile
- Reported capacity
- 150 MW
Onshore Wind Turbine
- Commercial operation
- January 2011
- Operating status
- operating
Alta Wind Energy Center I is currently operating; a closure or retirement is listed for August 2, 2026.
- Interconnection
- Windhub Substation
220 kV · Southern California Edison Co.
- Location
Generation and physical site
EIA plant 57282 · Inventory for Sep 2026.
Reported operating nameplate by technology
- Wind
- 150 MW
Generator records (1)
| Generator | Technology | Status | Power (MW) | Energy (MWh) |
|---|---|---|---|---|
| AW01 | Onshore Wind Turbine | Operating | 150 | Unknown |
- Physical map location · OpenStreetMap
- 35.01972, -118.30506
- Filed location · EIA
- 35.03372, -118.35340
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 |
|---|---|---|---|---|
| AW01 | 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
434.7 GWh
Reported net generation
Latest report
Dec 2024
EIA-923 monthly filing
2024 capacity factor
33.0%
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.
Nearby substations
HIFLD infrastructure inventoryNOT AVAILABLE · 66 kV
0.7 km
Commercial, land, and environmental record
Source-backed project transactions, agreements, land records, permits, and environmental disclosures. Portfolio and adjacent-project facts remain explicitly scoped.
Transactions and agreements
Offtake Agreement
Jan 6, 2011
Alta Wind I sells all electricity produced to Southern California Edison under a fixed-price PPA with original term of approximately 25 years. Commercial operation date January 6, 2011; PPA expiration 2035.
150 MW contracted25 yearsAlta Wind I, LLC · Southern California Edison
Land and environmental record
Environmental Permit Scope Exclusion
Aug 17, 2010
SCH 2008121044 and Streambed Alteration Agreement No. 1600-201 are for Alta Oak Creek Mojave project (Alta II, III, IV, V), not Alta I
Official CEQA record explicitly names Alta Wind II, III, IV, and V, not Alta Wind I. These identifiers must not be attributed to EIA 57282.
Groundwater And O&M Water System
Feb 1, 2011
CA1503662 - ALTA WIND PROJECT O&M FACILITY WATER SYSTEM
California's drinking-water system record identifies Alta Wind Project O&M Facility Water System (CA1503662) as a non-transient, non-community system in Kern County at 8560 Oak Creek Road, Mojave. Primary source is groundwater. Service relationship to EIA 57282 is inferred from facility address.
Land-Area And Parcel Scope Exclusion
Aug 17, 2010
Approximately 9,300 acres and multiple parcels are for Alta Oak Creek Mojave project (Alta II, III, IV, V), not Alta I
Kern County CEQA record reports approximately 9,300 acres and multiple parcels, but explicitly for Alta Wind II, III, IV, and V. This acreage and parcel description must not be attributed to Alta Wind Energy Center I.
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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AssetContractorOwner / operatorFinancierOrganizationOfftaker
Timeline and sources
Project milestones and public references behind the asset profile.
Project timeline
- Alta development platform acquiredTerra-Gen P...
Terra-Gen acquired the Alta Wind Energy Center development platform from Allco Finance.