Ashdown

Biomass power plant in Arkansas, United States of America. Approximate location 33.6417, -94.1083.

BiomassArkansasUnited States of America

Ashdown is a 156 MW biomass power station in Arkansas, United States of America. It is operated by Domtar Industries Inc. Based on reported annual generation of 667 GWh, it can supply roughly 190,628 homes. It ranks #1482 of 9,833 United States of America power plants by installed capacity. Commissioned in 1984, it is around 42 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).

156MW installed capacity
667GWh reported / yr
190,628homes powered
1984commissioned (~42 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0054104.

Reported generation trend

2013: 759 GWh20132014: 0 GWh20142015: 761 GWh20152016: 573 GWh20162017: 644 GWh20172018: 655 GWh20182019: 667 GWh2019761 GWh

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

Owner

Operated by Domtar Industries Inc. All plants by this company →

Local climate & thermal context

This biomass plant burns organic material (wood, residues) to raise steam for a turbine. It sits in a humid subtropical climate (Köppen Cfa) — Northern Hemisphere, latitude 33.6°N — which shapes how much energy it can produce and how its output varies through the year.

17.1°Cannual mean temp
1,390heating degree-days (base 18°C)
1,094cooling degree-days (base 18°C)
93 melevation

Monthly mean temperature

J: 6 °CJF: 8 °CFM: 13 °CMA: 17 °CAM: 21 °CMJ: 26 °CJJ: 28 °CJA: 27 °CAS: 24 °CSO: 18 °CON: 12 °CND: 7 °CD28 °C

Heating degree-days here run 43% below 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: 32/100 — this site sits in the bottom 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 #2 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 33.6417, -94.1083 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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