Wyodak

Coal power plant in Wyoming, United States of America. Approximate location 44.2901, -105.3815.

CoalWyomingUnited States of America

Wyodak is a 402 MW coal power station in Wyoming, United States of America. It is operated by PacifiCorp. Based on reported annual generation of 1,851 GWh, it can supply roughly 528,828 homes. It ranks #818 of 9,833 United States of America power plants by installed capacity. Commissioned in 1978, it is around 48 years old — long-established. In context, coal supplies about 16.3% of United States of America's electricity; the national grid averages 384 gCO₂/kWh (43.0% low-carbon) (2025).

402MW installed capacity
1,851GWh reported / yr
528,828homes powered
1978commissioned (~48 yrs)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id USA0006101.

~1,850,900 t CO₂/yr (estimated) — in everyday terms

This facility's annual emissions are roughly equivalent to:

431,445passenger cars driven for a year
241,380homes' yearly energy use
30,848,333tree seedlings grown 10 years to absorb it

Estimated, not measured: from reported annual generation × a typical coal emission factor (~1000 g CO₂/kWh, IPCC AR5 / US EIA). Actual emissions depend on plant efficiency and running hours.Equivalencies via US EPA Greenhouse Gas Equivalencies.

Reported generation trend

2013: 2,515 GWh20132014: 2,623 GWh20142015: 2,564 GWh20152016: 2,056 GWh20162017: 2,565 GWh20172018: 2,252 GWh20182019: 1,851 GWh20193k GWh

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

Owner

Operated by PacifiCorp. All plants by this company →

Local climate & thermal context

This coal plant burns coal to raise high-pressure steam that spins a turbine-generator. It sits in a cold semi-arid steppe climate (Köppen BSk) — Northern Hemisphere, latitude 44.3°N — which shapes how much energy it can produce and how its output varies through the year.

6.9°Cannual mean temp
4,207heating degree-days (base 18°C)
168cooling degree-days (base 18°C)
1,370 melevation

Monthly mean temperature

J: -7 °CJF: -4 °CFM: 1 °CMA: 6 °CAM: 11 °CMJ: 17 °CJJ: 21 °CJA: 20 °CAS: 15 °CSO: 8 °CON: 0 °CND: -5 °CD21 °C

Heating degree-days here run 71% 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: 87/100 — 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 #180 largest coal power plant of 286 in United States of America by capacity.

United States of America has 286 coal power plants in this dataset, together about 249,149 MW of capacity.

Nearby power plants

Location

Coordinates 44.2901, -105.3815 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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