Mosinee Mill

Biomass power plant in Wisconsin, United States of America. Approximate location 44.7881, -89.6917.

BiomassWisconsinUnited States of America

Mosinee Mill is a 23 MW biomass power plant in Wisconsin, United States of America. It is operated by Ahlstrom-Munksjo NA Specialty Solutions LLC. Based on reported annual generation of 127 GWh, it can supply roughly 36,257 homes. It ranks #3522 of 9,833 United States of America power plants by installed capacity. Commissioned in 1963, it is around 63 years old — an older, legacy facility. 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).

23MW installed capacity
127GWh reported / yr
36,257homes powered
1963commissioned (~63 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0050614.

Reported generation trend

2013: 134 GWh20132014: 143 GWh20142015: 138 GWh20152016: 138 GWh20162017: 125 GWh20172018: 136 GWh20182019: 127 GWh2019143 GWh

Annual generation (GWh), WRI Global Power Plant Database (CC BY 4.0).

Owner

Operated by Ahlstrom-Munksjo NA Specialty Solutions LLC.

Local climate & thermal context

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 44.8°N — which shapes how much energy it can produce and how its output varies through the year.

6.0°Cannual mean temp
4,477heating degree-days (base 18°C)
123cooling degree-days (base 18°C)
371 melevation

Monthly mean temperature

J: -11 °CJF: -8 °CFM: -2 °CMA: 6 °CAM: 13 °CMJ: 18 °CJJ: 21 °CJA: 19 °CAS: 14 °CSO: 8 °CON: 0 °CND: -8 °CD21 °C

Heating degree-days here run 82% 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: 90/100 — 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.

How it compares & nearby plants

The #65 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.

Nearby power plants

Location

Coordinates 44.7881, -89.6917 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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