Canada vs South Korea: Primary energy from nuclear
Canada
257.05 terawatt-hours
in 2025
South Korea
559.67 terawatt-hours
in 2025
Canada rank
7th
South Korea rank
5th
Primary energy from nuclear over time
- Canada
- South Korea
How they compare
South Korea currently reports 559.67 terawatt-hours against 257.05 terawatt-hours in Canada, a difference of 302.62 terawatt-hours.
That makes South Korea's figure about 2.2 times Canada's.
The two have swapped places 1 time across 61 shared years of data; in 1965 it was Canada ahead.
Canada ranks 7th and South Korea ranks 5th of 213 countries.
Across the 7 decades both report, Canada averaged higher in 4 and South Korea in 3.
Head to head by decade
| Decade | Canada | South Korea | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 1.15 terawatt-hours | 0 terawatt-hours | 1.15 terawatt-hours | Canada |
| 1970s | 50.08 terawatt-hours | 1.68 terawatt-hours | 48.4 terawatt-hours | Canada |
| 1980s | 178.33 terawatt-hours | 61.44 terawatt-hours | 116.89 terawatt-hours | Canada |
| 1990s | 258.3 terawatt-hours | 210.09 terawatt-hours | 48.21 terawatt-hours | Canada |
| 2000s | 258.76 terawatt-hours | 405.39 terawatt-hours | 146.63 terawatt-hours | South Korea |
| 2010s | 299.81 terawatt-hours | 455.59 terawatt-hours | 155.78 terawatt-hours | South Korea |
| 2020s | 269.89 terawatt-hours | 529.39 terawatt-hours | 259.5 terawatt-hours | South Korea |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher primary energy from nuclear, Canada or South Korea?
- South Korea, at 559.67 terawatt-hours against 257.05 terawatt-hours in Canada as of 2025.
- What is the difference in primary energy from nuclear between Canada and South Korea?
- 302.62 terawatt-hours, with South Korea ahead.
- How many years of comparable data are there for Canada and South Korea?
- 61 years are reported by both, from 1965 to 2025.
- How do Canada and South Korea rank globally for primary energy from nuclear?
- Canada ranks 7th and South Korea ranks 5th of 213 countries.
- Where does this data come from?
- Energy Institute - Statistical Review of World Energy (2026); Smil (2017) – with major processing by Our World in Data, published as Primary energy from nuclear. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Measured in terawatt-hours of total energy supply.