161st largest plant in Oregon · 6807th nationally
Coffin Butte is a biomass power plant in Oregon with a nameplate capacity of 5.6 MW. It generates roughly 42.3k MWh per year — enough to power about 4,028 average U.S. homes.
Its capacity factor of 86% means it runs nearly around-the-clock as baseload generation.
| Plant Name | Coffin Butte |
|---|---|
| Operator | Pacific Northwest Generating Coop |
| City | Corvallis |
| County | Benton County |
| State | Oregon |
| ZIP | 97330 |
| Coordinates | 44.69690, -123.22340 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 4 | Landfill Gas | Landfill Gas | 1.6 MW | Operating | 2007 |
| 5 | Landfill Gas | Landfill Gas | 1.6 MW | Operating | 2007 |
| 1 | Landfill Gas | Landfill Gas | 0.8 MW | Operating | 1995 |
| 2 | Landfill Gas | Landfill Gas | 0.8 MW | Operating | 1995 |
| 3 | Landfill Gas | Landfill Gas | 0.8 MW | Operating | 1995 |
| SO₂ | 8 metric tons |
|---|
Annual totals and CO₂ rate reported by EPA eGRID for 2023. Reference averages are approximate U.S.-wide figures from the same dataset.
| NERC Region | WECC |
|---|---|
| Balancing Authority | Bonneville Power Administration |
Biomass plants burn wood, agricultural waste, or methane from landfills to generate steam and electricity. They are considered carbon-neutral over long timescales when fuel is sustainably sourced, but they produce particulate emissions similar to coal.