Biomass power plant in Oregon, United States of America. Approximate location 45.71, -119.9011.
BiomassOregonUnited States of America
Threemile Digester is a 5 MW biomass power plant in Oregon, United States of America. It is operated by TMF Biofuels LLC. Based on reported annual generation of 33 GWh, it can supply roughly 9,371 homes. It ranks #6217 of 9,833 United States of America power plants by installed capacity. Commissioned in 2013, it is around 13 years old — relatively modern. In context, biomass supplies about 1.0% of United States of America's electricity; the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).
Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0058382.
Annual generation (GWh), WRI Global Power Plant Database (CC BY 4.0).
Operated by TMF Biofuels LLC.
This biomass plant burns organic material (wood, residues) to raise steam for a turbine. It sits in a cold semi-arid steppe climate (Köppen BSk) — Northern Hemisphere, latitude 45.7°N — which shapes how much energy it can produce and how its output varies through the year.
Monthly mean temperature
Heating degree-days here run 9% above the median power plant in this dataset — a proxy for how much extra energy heated equipment must replace through its surfaces in winter.
Climate heat-demand index: 54/100 — this site sits in the mid third of the power plants we cover by heating degree-days.
In colder climates, uninsulated hot equipment (boilers, turbines, valves, steam lines) loses proportionally more heat to ambient air — exactly the loss Inzonex modular insulation is designed to cut.
Climate normals: WorldClim 2.1 (1970–2000 monthly normals, 10 arc-min, CC BY 4.0); zone: Köppen-Geiger world climate classification (Kottek et al. 2006, 0.5° grid). Degree-days & heat-demand index computed by PowerAtlas — a modelled heat-demand proxy, not a measured site figure.
The #87 largest biomass power plant of 153 in United States of America by capacity.
United States of America has 153 biomass power plants in this dataset, together about 5,123 MW of capacity.
Coordinates 45.71, -119.9011 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
