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Bruce A

Nuclear power plant in Ontario, Canada. Approximate location 44.3391, -81.5747.

NuclearOntarioCanada

Bruce A is a 3,220 MW nuclear power station in Ontario, Canada. It is operated by Bruce Power LP. Based on its capacity (estimated), it can supply roughly 7,253,280 homes (estimated). It ranks #5 of 1,159 Canada power plants by installed capacity. As a non-combustion source, it has no direct CO₂ emissions from generation. In context, nuclear supplies about 13.1% of Canada's electricity; the national grid averages 191 gCO₂/kWh (77.0% low-carbon) (2025).

3,220MW installed capacity
7,253,280homes powered (est.)

Plant data: WRI Global Power Plant Database (CC BY 4.0), id CAN0002030.

Capacity vs largest nuclear plants in Canada

Darlington: 3,740 MW4kDarlingtonBruce B: 3,390 MW3kBruce BBruce A: 3,220 MW3kBruce APickering B: 2,160 MW2kPickering BPickering A: 1,084 MW1kPickering APoint Lepreau: 660 MW660Point Lepr…

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

Owner

Operated by Bruce Power LP. All plants by this company →

Local climate & thermal context

This nuclear plant uses heat from nuclear fission to raise steam for a turbine-generator. It sits in a warm-summer humid continental climate (Köppen Dfb) — Northern Hemisphere, latitude 44.3°N — which shapes how much energy it can produce and how its output varies through the year.

6.8°Cannual mean temp
4,132heating degree-days (base 18°C)
79cooling degree-days (base 18°C)
267 melevation

Monthly mean temperature

J: -6 °CJF: -6 °CFM: -2 °CMA: 5 °CAM: 12 °CMJ: 17 °CJJ: 20 °CJA: 19 °CAS: 15 °CSO: 9 °CON: 3 °CND: -3 °CD20 °C

Heating degree-days here run 68% 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: 86/100 — 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 #3 largest nuclear power plant of 6 in Canada by capacity.

Canada has 6 nuclear power plants in this dataset, together about 14,254 MW of capacity.

Nearby power plants

Location

Coordinates 44.3391, -81.5747 from WRI Global Power Plant Database (CC BY 4.0). View on OpenStreetMap.

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