Primary energy from nuclear in Canada
Canada: Primary energy from nuclear was 257.05 terawatt-hours in 2025. ◆ Volatile
Latest (2025)
257.05 terawatt-hours
Change on year
down 0.2%
World rank
8th
of 219 countries
All-time high
324.5 terawatt-hours
in 1994
All-time low
0.3879 terawatt-hours
in 1965
Years of data
61
1965–2025
Primary energy from nuclear in Canada, 1965–2025
Source: Energy Institute – Statistical Review of World Energy (2026); Smil (2017) – with major processing by Our World in Data. Measured in terawatt-hours.
Analysis
In 2025, primary energy from nuclear in Canada stood at 257.05 terawatt-hours.
The figure is down 0.2% on the previous year and down 16.1% over ten years.
Over the whole period, primary energy from nuclear in Canada peaked at 324.5 terawatt-hours in 1994 and was at its lowest, 0.3879 terawatt-hours, in 1965.
That places Canada 8th out of 219 countries with data for 2025, putting it in the top 10%.
The series is highly variable year to year, so single readings are best treated with caution.
Primary energy from nuclear in Canada, year by year
| Year | terawatt-hours | Change |
|---|---|---|
| 1965 | 0.3879 terawatt-hours | — |
| 1966 | 0.5212 terawatt-hours | +34.4% |
| 1967 | 0.4636 terawatt-hours | -11.0% |
| 1968 | 2.78 terawatt-hours | +500.0% |
| 1969 | 1.6 terawatt-hours | -42.4% |
| 1970 | 3.14 terawatt-hours | +96.0% |
| 1971 | 12.93 terawatt-hours | +311.5% |
| 1972 | 21.85 terawatt-hours | +69.0% |
| 1973 | 46.22 terawatt-hours | +111.5% |
| 1974 | 44.53 terawatt-hours | -3.7% |
| 1975 | 38.09 terawatt-hours | -14.5% |
| 1976 | 52.78 terawatt-hours | +38.6% |
| 1977 | 79.82 terawatt-hours | +51.3% |
| 1978 | 94.55 terawatt-hours | +18.4% |
| 1979 | 106.88 terawatt-hours | +13.0% |
| 1980 | 115.25 terawatt-hours | +7.8% |
| 1981 | 121.42 terawatt-hours | +5.4% |
| 1982 | 116.17 terawatt-hours | -4.3% |
| 1983 | 147.3 terawatt-hours | +26.8% |
| 1984 | 158.21 terawatt-hours | +7.4% |
| 1985 | 183.4 terawatt-hours | +15.9% |
| 1986 | 215.96 terawatt-hours | +17.8% |
| 1987 | 234.12 terawatt-hours | +8.4% |
| 1988 | 251.11 terawatt-hours | +7.3% |
| 1989 | 240.35 terawatt-hours | -4.3% |
| 1990 | 219.58 terawatt-hours | -8.6% |
| 1991 | 255.57 terawatt-hours | +16.4% |
| 1992 | 242.49 terawatt-hours | -5.1% |
| 1993 | 282.68 terawatt-hours | +16.6% |
| 1994 | 324.5 terawatt-hours | +14.8% |
| 1995 | 294.44 terawatt-hours | -9.3% |
| 1996 | 279.16 terawatt-hours | -5.2% |
| 1997 | 248.35 terawatt-hours | -11.0% |
| 1998 | 215.13 terawatt-hours | -13.4% |
| 1999 | 221.15 terawatt-hours | +2.8% |
| 2000 | 219.07 terawatt-hours | -0.9% |
| 2001 | 230.79 terawatt-hours | +5.4% |
| 2002 | 227.27 terawatt-hours | -1.5% |
| 2003 | 225.37 terawatt-hours | -0.8% |
| 2004 | 271.99 terawatt-hours | +20.7% |
| 2005 | 276.97 terawatt-hours | +1.8% |
| 2006 | 294.8 terawatt-hours | +6.4% |
| 2007 | 281.31 terawatt-hours | -4.6% |
| 2008 | 288.95 terawatt-hours | +2.7% |
| 2009 | 271.11 terawatt-hours | -6.2% |
| 2010 | 272.81 terawatt-hours | +0.6% |
| 2011 | 281.63 terawatt-hours | +3.2% |
| 2012 | 285.46 terawatt-hours | +1.4% |
| 2013 | 311.27 terawatt-hours | +9.0% |
| 2014 | 322.83 terawatt-hours | +3.7% |
| 2015 | 306.37 terawatt-hours | -5.1% |
| 2016 | 305.22 terawatt-hours | -0.4% |
| 2017 | 304.83 terawatt-hours | -0.1% |
| 2018 | 303.12 terawatt-hours | -0.6% |
| 2019 | 304.53 terawatt-hours | +0.5% |
| 2020 | 295.49 terawatt-hours | -3.0% |
| 2021 | 278.74 terawatt-hours | -5.7% |
| 2022 | 262.52 terawatt-hours | -5.8% |
| 2023 | 267.96 terawatt-hours | +2.1% |
| 2024 | 257.56 terawatt-hours | -3.9% |
| 2025 | 257.05 terawatt-hours | -0.2% |
Biggest year-on-year movements
Years where Primary energy from nuclear in Canada changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 1968 | +500.0% | 0.4636 terawatt-hours | 2.78 terawatt-hours |
| 1971 | +311.5% | 3.14 terawatt-hours | 12.93 terawatt-hours |
| 1973 | +111.5% | 21.85 terawatt-hours | 46.22 terawatt-hours |
| 1970 | +96.0% | 1.6 terawatt-hours | 3.14 terawatt-hours |
| 1972 | +69.0% | 12.93 terawatt-hours | 21.85 terawatt-hours |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 1.15 terawatt-hours | 0.3879 terawatt-hours | 2.78 terawatt-hours | 5 |
| 1970s | 50.08 terawatt-hours | 3.14 terawatt-hours | 106.88 terawatt-hours | 10 |
| 1980s | 178.33 terawatt-hours | 115.25 terawatt-hours | 251.11 terawatt-hours | 10 |
| 1990s | 258.3 terawatt-hours | 215.13 terawatt-hours | 324.5 terawatt-hours | 10 |
| 2000s | 258.76 terawatt-hours | 219.07 terawatt-hours | 294.8 terawatt-hours | 10 |
| 2010s | 299.81 terawatt-hours | 272.81 terawatt-hours | 322.83 terawatt-hours | 10 |
| 2020s | 269.89 terawatt-hours | 257.05 terawatt-hours | 295.49 terawatt-hours | 6 |
Countries ranked near Canada
More energy & mining data for Canada
- Fossil fuel consumption by fuel, per unit of GDP 0 terawatt-hours per US$ of GDP (2025)
- Primary energy use, annual growth rate 1.48 % change on previous year (2025)
- Coal consumption, per capita 0 terawatt-hours per person (2025)
- Coal consumption, per unit of GDP 0 terawatt-hours per US$ of GDP (2025)
- Primary energy use, per unit of GDP 0 terawatt-hours per US$ of GDP (2025)
- Primary energy use, per capita 0.0001 terawatt-hours per person (2025)
- Coal production, per capita 0 terawatt-hours per person (2025)
- Coal production, per unit of GDP 0 terawatt-hours per US$ of GDP (2025)
- Fossil fuel consumption by fuel, per capita 0 terawatt-hours per person (2025)
- Fuel imports 6.5% (2024)
Frequently asked questions
- What is primary energy from nuclear in Canada?
- Primary energy from nuclear in Canada was 257.05 terawatt-hours in 2025, according to Energy Institute – Statistical Review of World Energy (2026); Smil (2017) – with major processing by Our World in Data.
- What is the highest primary energy from nuclear recorded in Canada?
- The highest recorded value was 324.5 terawatt-hours in 1994.
- What is the lowest primary energy from nuclear recorded in Canada?
- The lowest recorded value was 0.3879 terawatt-hours in 1965.
- How does Canada rank for primary energy from nuclear?
- Canada ranks 8th out of 219 countries with data for 2025.
- Is primary energy from nuclear rising or falling in Canada?
- Over the last ten years it is down 16.1%. The long-run trend across the full record is volatile.
- Where does this Canada data come from?
- The figures come from Energy Institute – Statistical Review of World Energy (2026); Smil (2017) – with major processing by Our World in Data, published as part of Primary energy from nuclear. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 61 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Measured in terawatt-hours of total energy supply.