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266.8 MW Wind operating in Columbia, WA
266.8 MW
Nameplate Capacity
1
Generators
unit
Onshore Wind Turbine
Technology
2014
Operating Since
Coordinates
46.4299, -118.0443
County
Columbia, WA
Nearby Plants
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Portland General Electric Co | Portland General Electric | — |
| Owner(s) | Portland General Electric Co | Portland General Electric | — |
| Status | Operating | operating | — |
The Tucannon River Wind Farm is a 266.8 MW wind power facility located in Columbia County, Washington. The plant began operating in 2014 and is owned and operated by Portland General Electric (PGE). It utilizes a single generator comprised of onshore wind turbine technology. Specifically, the facility is equipped with Siemens SWT-2.3-108 wind turbines, featuring a rotor diameter of 108 meters and a hub height of 80 meters.
In the most recent year of data, the Tucannon River Wind Farm generated 808,346 MWh of electricity, achieving a capacity factor of 34.5%. The plant is interconnected to the grid within the Portland General Electric Company balancing authority, operating within the Western Electricity Coordinating Council (WECC) NERC region. The Tucannon River Wind Farm is the third-largest wind farm in Washington state out of 17, and ranks 144th nationally out of 734 wind facilities.
Generated from EIA, GEM, and public data sources
Grid Region
Pacific Northwest
Market
WEIM Participant
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
Portland General Electric Company (PGE)
Grid Voltage
230.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
Monthly net generation as reported to EIA-923 — useful for historical context. Confidence varies sharply by fuel type; the band above and the “About this data” button explain the caveats specific to this plant and how InfraSure’s in-house model handles them.
54.3K MWh
Latest Month
808.3K MWh
Annual Generation
34.5%
Capacity Factor
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2014
$1,935/kW
Est. Construction Cost
Total estimated cost: $516.3M
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Market Position
LMP Node
TRW1_2_GNODE1
Pricing Hub
—
154 buyers • 8,584 active contracts
+ 149 more offtakers in the full bridge. Top 5 shown.
Browse source data on FERC EQRLast updated 2026-03-26
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