18 MW Hydro operating in Marion, OR — Bonneville Power Administration
18 MW
Nameplate Capacity
1
Generators
unit
Conventional Hydroelectric
Technology
1954
Operating Since
Coordinates
44.7513, -122.2833
County
Marion, OR
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | USACE Northwestern Division | — | — |
| Owner(s) | USACE Northwestern Division | — | — |
| Status | Operating | — | — |
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
NERC Region
WECC
Balancing Authority
Bonneville Power Administration
Grid Voltage
13.8 kV
Regulatory Status
RE
Entity Type
Federal
Sector
Electric Utility
8.7K MWh
Latest Month
90.8K MWh
Annual Generation
57.5%
Capacity Factor
No financial data available for this plant.
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
Last updated 2026-03-26
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