Big Cliff — Plant Summary
- EIA Plant ID
- 3074
- Capacity
- 18 MW
- Primary Fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Status
- Operating
- Location
- Marion, OR
- Operating Since
- 1954
- Generators
- 1
- Operator
- USACE Northwestern Division
- Parent Company
- —
- Annual Generation
- 90,835 MWh
- Capacity Factor
- 57.5%
- Balancing Authority
- Bonneville Power Administration
- ISO/RTO
- —
- NERC Region
- WECC
Big Cliff
OperatingHydro
Ranked #29 of 63 Hydro plants in OR#504 of 1454 nationally
18 MW Hydro operating in Marion, OR — Bonneville Power Administration
EIAWD
18 MW
Nameplate Capacity
1
Generators
unit
Conventional Hydroelectric
Technology
1954
Operating Since
Location
Coordinates
44.7513, -122.2833
County
Marion, OR
Nearby Plants
- DetroitHydro100 MW · 4.1 km
- Evergreen BioPower LLCWood Waste21 MW · 26.0 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | USACE Northwestern Division | — | — |
| Owner(s) | USACE Northwestern Division | — | — |
| Status | Operating | — | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
Big Cliff is a hydroelectric power plant located in Marion County, Oregon. The plant has a total capacity of 18 MW and began operating in 1954. It is owned and operated by the USACE Northwestern Division. The plant utilizes conventional hydroelectric technology and has one generator. Big Cliff is ranked 28th out of 63 power plants in Oregon and 512th out of 1464 plants nationally.
The plant's primary fuel source is water (WAT). In the most recent year with available data, Big Cliff generated 90,835 MWh of electricity, achieving a capacity factor of 57.5%. The plant operates within the Bonneville Power Administration balancing authority and is part of the Western Electricity Coordinating Council (WECC) NERC region.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
WECC
Balancing Authority
Bonneville Power Administration
Grid Voltage
13.8 kV
Regulatory Status
RE
Entity Type
Federal
Sector
Electric Utility
Generation
8.7K MWh
Latest Month
90.8K MWh
Annual Generation
57.5%
Capacity Factor
Jan 2022 – Dec 2024
Financial Data
No financial data available for this plant.
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
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