Biomass power plant in Pennsylvania, United States of America. Approximate location 41.4915, -78.6758.
BiomassPennsylvaniaUnited States of America
Johnsonburg Mill is a 54 MW biomass power plant in Pennsylvania, United States of America. It is operated by Domtar LLC. Based on reported annual generation of 89 GWh, it can supply roughly 25,400 homes. It ranks #2640 of 9,833 United States of America power plants by installed capacity. Commissioned in 1993, it is around 33 years old — long-established. 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 USA0054638.
Annual generation (GWh), WRI Global Power Plant Database (CC BY 4.0).
Operated by Domtar LLC. All plants by this company →
This biomass plant burns organic material (wood, residues) to raise steam for a turbine. It sits in a warm-summer humid continental climate (Köppen Dfb) — Northern Hemisphere, latitude 41.5°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 57% 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: 83/100 — this site sits in the top 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 #44 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 41.4915, -78.6758 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.
