Tucannon River Wind Farm
Wind power plant · Columbia County, Washington
Nameplate capacity
267 MW
Rank in Washington
#26
of 139 plants
In service since
2014
December 2014
Details
- Primary fuel
- Wind
- Technology
- Onshore Wind Turbine
- Operator
- Portland General Electric Co
- County
- Columbia County
- Generating units
- 1
- Share of state capacity
- 0.84%
- Rank among wind plants in Washington
- #3 of 23
- EIA plant code
- 58571
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Onshore Wind Turbine | 267 MW | 267 MW | 2014 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Washington
| Ferndale Generating Station | Natural gas | 286 MW |
| Wild Horse | Wind | 273 MW |
| Windy Flats Wind Project | Wind | 262 MW |
| River Road Gen Plant | Natural gas | 248 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 267 MW solar plant and a 267 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Washington power plants · What Washington actually generates