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Poplar River

Coal power plant in Montana, Canada. Approximate location 49.0579, -105.4851.

CoalMontanaCanada

Poplar River is a 582 MW coal power station in Montana, Canada. It is operated by Saskatchewan Power Corp. Based on its capacity (estimated), it can supply roughly 728,331 homes (estimated). It ranks #58 of 1,159 Canada power plants by installed capacity. In context, coal supplies about 4.1% of Canada's electricity; the national grid averages 191 gCO₂/kWh (77.0% low-carbon) (2025).

582MW installed capacity
728,331homes powered (est.)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id CAN0002079.

~2,549,160 t CO₂/yr (estimated) — in everyday terms

This facility's annual emissions are roughly equivalent to:

594,210passenger cars driven for a year
332,441homes' yearly energy use
42,486,000tree seedlings grown 10 years to absorb it

Estimated, not measured: from installed capacity at a typical 50% load factor × 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.

Capacity vs largest coal plants in Canada

Sundance: 2,141 MW2kSundanceGenesee: 1,376 MW1kGeneseeKeephills: 1,253 MW1kKeephillsSheerness: 816 MW816SheernessBattle River: 689 MW689Battle Riv…Boundary Dam: 672 MW672Boundary D…Lingan: 620 MW620LinganPoplar River: 582 MW582Poplar Riv…

Installed capacity (MW), WRI Global Power Plant Database (CC BY 4.0).

Owner

Operated by Saskatchewan Power Corp. 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 49.1°N — which shapes how much energy it can produce and how its output varies through the year.

8.4°Cannual mean temp
3,852heating degree-days (base 18°C)
369cooling degree-days (base 18°C)
751 melevation

Monthly mean temperature

J: -8 °CJF: -2 °CFM: 2 °CMA: 9 °CAM: 16 °CMJ: 21 °CJJ: 23 °CJA: 22 °CAS: 15 °CSO: 8 °CON: 0 °CND: -5 °CD23 °C

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: 82/100 — 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 #8 largest coal power plant of 15 in Canada by capacity.

Canada has 15 coal power plants in this dataset, together about 9,772 MW of capacity.

Nearby power plants

Location

Coordinates 49.0579, -105.4851 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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