Columbia County, Washington has 4 power plants totaling 1,467 MW of nameplate capacity. Browse every plant below with fuel type, operator, and capacity.
| Plant | City | Fuel | Capacity | Operator |
|---|---|---|---|---|
| Little Goose | Dayton | Hydroelectric | 810 MW | Usace Northwestern Division |
| Tucannon River Wind Farm | Dayton | Wind | 267 MW | Portland General Electric Co |
| Marengo Wind Plant | Dayton | Wind | 234 MW | Pacificorp |
| Hopkins Ridge Wind | Dayton | Wind | 157 MW | Puget Sound Energy Inc |
Columbia County, Washington has 4 power plants totaling 1,467 MW of nameplate capacity. Hydroelectric is the dominant fuel source at 55% of installed capacity, followed by Wind (45%). The largest facility is Little Goose at 810 MW. Data comes from EIA Form 860, EIA Form 923, and EPA eGRID federal releases.
To find plants closer to a specific address in Columbia County, use the address lookup — it shows every plant within a chosen radius along with distance, fuel type, and emissions.