CountryNuclear power in Canada
Canada has 16 reactors operating with 11,907 MW net installed capacity, 13.1 % of its electricity. One more unit has its operation suspended. 1 under construction. 8 shut down. First reactor connected in 1962.
Canada ranks 8th among the 32 countries with operating reactors by net capacity, and 7th by number of reactors. Its first reactor, Nuclear Power Demonstration (NPD), started operating in 1962, 64 years ago. All 16 operating units are PHWR. The highest-capacity plant in operation is Bruce, with 5,671 MW net, and the oldest unit still in service is Bruce A1, operating since 1977. One unit is under construction, Darlington New 1, with grid connection expected in 2030.
PHWR reactors in Canada · SMR reactors in Canada · HWLWR reactors in Canada · Rankings
Electricity generation mix
Share of electricity generation, 2025 (closest earlier year; 2026 has no data) · Ember
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Plants
| Plant | Units | Types | Status today | MWe operating |
|---|---|---|---|---|
| Bruce | 8 | PHWR | 7 operatingoffline for refurbishment | 6,478 |
| Darlington | 4 | PHWR | 4 operating | 3,512 |
| Pickering | 8 | PHWR | 4 operating4 shut down | 2,064 |
| Point Lepreau | 2 | PHWR, SMR | operatingplanned | 660 |
| Chalk River | 1 | — | planned | — |
| Darlington New | 1 | SMR | under construction | — |
| Douglas Point (AECL) | 1 | PHWR | shut down | — |
| Gentilly | 2 | HWLWR, PHWR | 2 shut down | — |
| Nuclear Power Demonstration (NPD) | 1 | PHWR | shut down | — |
Data: IAEA PRIS · Global Energy Monitor · Wikipedia · editorial review · updated on Sep 21, 2026