Iran vs South Korea: Annual change in primary energy from nuclear
Iran
-5 terawatt-hours
in 2025
South Korea
-12.31 terawatt-hours
in 2025
Iran rank
212th
South Korea rank
215th
Annual change in primary energy from nuclear over time
- Iran
- South Korea
How they compare
Iran currently reports -5 terawatt-hours against -12.31 terawatt-hours in South Korea, a difference of 7.31 terawatt-hours.
The two have swapped places 11 times across 60 shared years of data; in 1966 it was South Korea ahead.
Iran ranks 212th and South Korea ranks 215th of 219 countries.
Across the 7 decades both report, Iran averaged higher in 1 and South Korea in 5.
Head to head by decade
| Decade | Iran | South Korea | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 0 terawatt-hours | 0 terawatt-hours | 0 terawatt-hours | — |
| 1970s | 0 terawatt-hours | 0.9551 terawatt-hours | 0.9551 terawatt-hours | South Korea |
| 1980s | 0 terawatt-hours | 13.4 terawatt-hours | 13.4 terawatt-hours | South Korea |
| 1990s | 0 terawatt-hours | 16.88 terawatt-hours | 16.88 terawatt-hours | South Korea |
| 2000s | 0 terawatt-hours | 13.55 terawatt-hours | 13.55 terawatt-hours | South Korea |
| 2010s | 1.94 terawatt-hours | -0.564 terawatt-hours | 2.51 terawatt-hours | Iran |
| 2020s | -0.5163 terawatt-hours | 19.59 terawatt-hours | 20.1 terawatt-hours | South Korea |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher annual change in primary energy from nuclear, Iran or South Korea?
- Iran, at -5 terawatt-hours against -12.31 terawatt-hours in South Korea as of 2025.
- What is the difference in annual change in primary energy from nuclear between Iran and South Korea?
- 7.31 terawatt-hours, with Iran ahead.
- How many years of comparable data are there for Iran and South Korea?
- 60 years are reported by both, from 1966 to 2025.
- How do Iran and South Korea rank globally for annual change in primary energy from nuclear?
- Iran ranks 212th and South Korea ranks 215th of 219 countries.
- Where does this data come from?
- Energy Institute – Statistical Review of World Energy (2026) – with major processing by Our World in Data, published as Annual change in primary energy from nuclear. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Change in total energy supply relative to the previous year, measured in terawatt-hours.