PowerPlantFactsEvidence report · prepared 2 September 2026https://powerplantfacts.com/entity/50423
EIA plant 50423
Tieton · Yakima · WA
Cowiche
Operated by Yakima-Tieton Irrigation Dist
Published location
Where is Cowiche?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
46.692628, -120.737194
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Capacity is not generation. Nameplate MW describes equipment; annual MWh describes recorded output. Proposed and retired units are not added to operating capacity.
2024 monthly net generation
| Month | Net generation |
|---|---|
| 1 | 0 MWh |
| 2 | 0 MWh |
| 3 | 0 MWh |
| 4 | 46 MWh |
| 5 | 359 MWh |
| 6 | 650 MWh |
| 7 | 559 MWh |
| 8 | 495 MWh |
| 9 | 577 MWh |
| 10 | 11 MWh |
| 11 | 0 MWh |
| 12 | 0 MWh |
Operating generators
| ID | Technology | Fuel | MW | Status |
|---|---|---|---|---|
| 983 | Conventional Hydroelectric | WAT | 1.7 | OA |
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Similar-capacity plants in the same state
Identity, technology and limitations
EIA plant ID
50423
Sector
IPP Non-CHP
Water source
Tieton River
Data edition
2024-final