Chapais

Chapais is a 28 MW biomass power plant in Quebec, Canada. Based on its capacity (estimated), it can supply roughly 38,544 homes (estimated). It ranks #452 of 1,159 Canada power plants by installed capacity. In context, biomass supplies about 1.6% of Canada's electricity; the national grid averages 191 gCO₂/kWh (77.0% low-carbon) (2025).

Plant data: WRI Global Power Plant Database (CC BY 4.0), id CAN0007742.

Capacity vs largest biomass plants in Canada

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

Local climate & thermal context

This biomass plant burns organic material (wood, residues) to raise steam for a turbine. It sits in a subarctic (boreal) climate (Köppen Dfc) — Northern Hemisphere, latitude 49.8°N — which shapes how much energy it can produce and how its output varies through the year.

Monthly mean temperature

Heating degree-days here run 171% 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: 99/100 — 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 #32 largest biomass power plant of 111 in Canada by capacity.

Canada has 111 biomass power plants in this dataset, together about 2,742 MW of capacity.

Location

Coordinates 49.7709, -74.8568 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.