Skookumchuck Wind Facility — Plant Summary
- EIA Plant ID
- 63205
- Capacity
- 136 MW
- Primary Fuel
- Wind
- Technology
- Onshore Wind Turbine
- Status
- Operating
- Location
- Thurston, WA
- Operating Since
- 2020
- Generators
- 1
- Operator
- Southern Power Co
- Parent Company
- TransAlta
- Annual Generation
- 392,842 MWh
- Capacity Factor
- 33.0%
- Balancing Authority
- Puget Sound Energy
- ISO/RTO
- —
- NERC Region
- WECC
Skookumchuck Wind Facility
OperatingWind
Ranked #13 of 24 Wind plants in WA#568 of 1442 nationally
136 MW Wind operating in Thurston, WA — Puget Sound Energy
EIAGEMWD
136 MW
Nameplate Capacity
1
Generators
unit
Onshore Wind Turbine
Technology
2020
Operating Since
Location
Coordinates
46.7138, -122.5817
County
Thurston, WA
Nearby Plants
- SkookumchuckHydro1 MW · 13.1 km
- Transalta Centralia GenerationSub. Coal729.9 MW · 21.7 km
- AlderHydro50 MW · 22.9 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Southern Power Co | Southern Power | — |
| Owner(s) | Skookumchuck Wind Energy Project, LLC | TransAlta | — |
| Status | Operating | operating | — |
Ownership Chain
About
The Skookumchuck Wind Facility is a 136 MW wind power plant located in Thurston County, Washington. The facility began operating in 2020 and utilizes one generator with onshore wind turbine technology. The wind farm is owned by TransAlta, a Canadian company, and operated by Southern Power Co. It interconnects to the grid within the Puget Sound Energy balancing authority and the Western Electricity Coordinating Council (WECC) NERC region.
The facility's primary fuel source is wind (WND). The wind turbines have a hub height of 82 meters and a rotor diameter of 136 meters. The turbines were manufactured by Vestas, model V136-3.6. In its most recent year of operation, the Skookumchuck Wind Facility generated 392,842 MWh of electricity, achieving a capacity factor of 33.0%. The plant ranks as the 13th largest of 17 wind facilities in Washington state, and 562nd out of 734 nationally.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
Puget Sound Energy
Grid Voltage
345 kV
Regulatory Status
NR
Entity Type
Investor-Owned Utility
Sector
IPP Non-CHP
Generation
57.3K MWh
Latest Month
392.8K MWh
Annual Generation
33.0%
Capacity Factor
Jan 2023 – Dec 2025
Financial Data
No financial data available for this plant.
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
News & Articles (2)Beta
Deals·m and a
Canadian Power - Mergers & Acquisitions
The Canadian power sector saw a marked decline, with an aggregate domestic deal value of US$1.4 billion in 2020, compared ith US$7.4 billion in 2019.
McCarthy Tétrault·5 years ago
Deals·m and a
Southern Power acquires 136MW Skookumchuck wind farm from RES
Southern Power has acquired the 136MW Skookumchuck wind facility from Renewable Energy Systems (RES) for an undisclosed amount.
Southern Power (buyer)Renewable Energy Systems (RES) (seller)
NS Energy·6 years ago
Last updated 2026-03-14
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