MWPowerPlantFacts
PowerPlantFactsEvidence report · prepared 2 September 2026https://powerplantfacts.com/entity/6175
EIA plant 6175

Pomeroy · Whitman · WA

Lower Granite

Operated by USACE Northwestern Division

Annual generation1,273,521 MWhSum of represented EIA-923 rows
Fuel codesWATCodes retained from EIA records
Grid contextBonneville Power AdministrationBalancing authority or NERC region

Published location

Where is Lower Granite?

This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.

46.659503, -117.429385

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Map data © OpenStreetMap contributors

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

MonthNet generation
1115,773 MWh
2161,029 MWh
3192,364 MWh
471,557 MWh
578,464 MWh
6104,712 MWh
790,424 MWh
894,960 MWh
993,934 MWh
1076,806 MWh
1187,356 MWh
12106,142 MWh

Operating generators

IDTechnologyFuelMWStatus
1Conventional HydroelectricWAT135OP
2Conventional HydroelectricWAT135OP
3Conventional HydroelectricWAT135OP
4Conventional HydroelectricWAT135OP
5Conventional HydroelectricWAT135OP
6Conventional HydroelectricWAT135OP

Continue exploring

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Identity, technology and limitations
EIA plant ID
6175
Sector
Electric Utility
Water source
Snake And Columbia Rivers
Data edition
2024-final