Directory of Power Plants in Oregon
| County | State Rank | Active Plants | May 2026 Generation |
|---|
| Umatilla County, OR | # 1 | 19 | 11.4 TWh |
| Sherman County, OR | # 2 | 12 | 11.0 TWh |
| Morrow County, OR | # 3 | 22 | 9.1 TWh |
| Wasco County, OR | # 4 | 7 | 7.0 TWh |
| Columbia County, OR | # 5 | 3 | 5.9 TWh |
| Multnomah County, OR | # 6 | 8 | 4.1 TWh |
| Gilliam County, OR | # 7 | 13 | 3.9 TWh |
| Klamath County, OR | # 8 | 24 | 3.7 TWh |
| Wallowa County, OR | # 9 | 2 | 2.0 TWh |
| Jefferson County, OR | # 10 | 10 | 1.3 TWh |
| Baker County, OR | # 11 | 9 | 1.2 TWh |
| Clackamas County, OR | # 12 | 37 | 826.4 GWh |
| Lane County, OR | # 13 | 12 | 794.2 GWh |
| Douglas County, OR | # 14 | 15 | 715.3 GWh |
| Jackson County, OR | # 15 | 14 | 709.7 GWh |
| Marion County, OR | # 16 | 31 | 438.4 GWh |
| County | State Rank | Active Plants | May 2026 Generation |
|---|
| Linn County, OR | # 17 | 9 | 417.1 GWh |
| Crook County, OR | # 18 | 7 | 372.7 GWh |
| Union County, OR | # 19 | 2 | 305.8 GWh |
| Malheur County, OR | # 20 | 15 | 287.1 GWh |
| Lake County, OR | # 21 | 19 | 278.8 GWh |
| Clatsop County, OR | # 22 | 2 | 170.9 GWh |
| Harney County, OR | # 23 | 4 | 95.9 GWh |
| Deschutes County, OR | # 24 | 8 | 91.7 GWh |
| Benton County, OR | # 25 | 3 | 80.7 GWh |
| Yamhill County, OR | # 26 | 15 | 73.9 GWh |
| Lincoln County, OR | # 27 | 1 | 47.0 GWh |
| Hood River County, OR | # 28 | 4 | 41.5 GWh |
| Polk County, OR | # 29 | 8 | 25.8 GWh |
| Josephine County, OR | # 30 | 3 | 4.7 GWh |
| Washington County, OR | # 31 | 6 | 2.1 GWh |
