WestRock (WA)

Biomass power plant in Washington, United States of America. Approximate location 47.2661, -122.4283.

BiomassWashingtonUnited States of America

WestRock (WA) is a 64 MW biomass power plant in Washington, United States of America. It is operated by WestRock (WA). Based on reported annual generation of 288 GWh, it can supply roughly 82,228 homes. It ranks #2476 of 9,833 United States of America power plants by installed capacity. Commissioned in 2009, it is around 17 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).

64MW installed capacity
288GWh reported / yr
82,228homes powered
2009commissioned (~17 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0057099.

Reported generation trend

2013: 295 GWh20132014: 311 GWh20142015: 344 GWh20152016: 339 GWh20162017: 330 GWh20172018: 310 GWh20182019: 288 GWh2019344 GWh

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

Owner

Operated by WestRock (WA).

Local climate & thermal context

This biomass plant burns organic material (wood, residues) to raise steam for a turbine. It sits in a warm-summer Mediterranean climate (Köppen Csb) — Northern Hemisphere, latitude 47.3°N — which shapes how much energy it can produce and how its output varies through the year.

10.9°Cannual mean temp
2,602heating degree-days (base 18°C)
30cooling degree-days (base 18°C)
78 melevation

Monthly mean temperature

J: 4 °CJF: 6 °CFM: 7 °CMA: 10 °CAM: 13 °CMJ: 16 °CJJ: 18 °CJA: 19 °CAS: 16 °CSO: 11 °CON: 7 °CND: 4 °CD19 °C

Heating degree-days here run 6% 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: 52/100 — 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.

How it compares & nearby plants

The #40 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 47.2661, -122.4283 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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