Coffin Butte
Coffin Butte is a 6 MW biomass power plant in Benton County, Oregon, operated by Pacific Northwest Generating Coop. EIA-860M lists 5 generating units here. Its units entered service between 1995 and 2007.
As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m
- Nameplate capacity
- 5.6 MW
- 5.6 MW net summer
- Generating units
- 5
- In service
- 1995–2007
- EIA plant ID
- 7725
Where it is
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- County
- Benton County, Oregon
- Coordinates
- 44.6969, -123.2234
- Balancing authority
- BPAT
- Sector
- Electric Utility
Units, technology and status
- Operator of record
- Pacific Northwest Generating Coop
- Primary energy source
- Biomass
- Technologies
- Landfill Gas
- Status
- Operating
Every plant Pacific Northwest Generating Coop reports to EIA →
Coffin Butte: FAQ
- Where is Coffin Butte?
- In Benton County, Oregon (OR). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.
- How big is Coffin Butte?
- 6 MW of nameplate capacity across 5 units, as of the EIA-860M release for 2026-07.
- Who owns Coffin Butte?
- EIA-860M names Pacific Northwest Generating Coop as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
- Is this the same as Coffin Butte LLC?
- Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Pacific Northwest Generating Coop here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Coffin Butte LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
- Is Coffin Butte still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.