MWPowerPlantFacts
PowerPlantFactsEvidence report · prepared 2 September 2026https://powerplantfacts.com/entity/3074
EIA plant 3074

Gates · Marion · OR

Big Cliff

Operated by USACE Northwestern Division

Annual generation90,835 MWhSum of represented EIA-923 rows
Fuel codesWATCodes retained from EIA records
Grid contextBonneville Power AdministrationBalancing authority or NERC region

Published location

Where is Big Cliff?

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

44.751400, -122.283200

Open the interactive map ↗

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
111,099 MWh
28,058 MWh
38,204 MWh
46,842 MWh
59,684 MWh
66,776 MWh
73,064 MWh
83,088 MWh
95,950 MWh
106,300 MWh
1113,105 MWh
128,665 MWh

Operating generators

IDTechnologyFuelMWStatus
1Conventional HydroelectricWAT18OP

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Identity, technology and limitations
EIA plant ID
3074
Sector
Electric Utility
Water source
North Santiam River
Data edition
2024-final