Slovenia vs South Africa: Primary energy from nuclear
Slovenia
17.68 terawatt-hours
in 2025
South Africa
32.52 terawatt-hours
in 2025
Slovenia rank
29th
South Africa rank
27th
Primary energy from nuclear over time
- Slovenia
- South Africa
How they compare
South Africa currently reports 32.52 terawatt-hours against 17.68 terawatt-hours in Slovenia, a difference of 14.84 terawatt-hours.
That makes South Africa's figure about 1.8 times Slovenia's.
Across all 36 years both countries report, South Africa has been ahead every year.
Slovenia ranks 29th and South Africa ranks 27th of 219 countries.
South Africa has averaged higher in every one of the 4 decades both report.
Head to head by decade
| Decade | Slovenia | South Africa | Difference | Ahead |
|---|---|---|---|---|
| 1990s | 14 terawatt-hours | 32.12 terawatt-hours | 18.12 terawatt-hours | South Africa |
| 2000s | 16.77 terawatt-hours | 36.42 terawatt-hours | 19.65 terawatt-hours | South Africa |
| 2010s | 17.67 terawatt-hours | 40.64 terawatt-hours | 22.97 terawatt-hours | South Africa |
| 2020s | 17.65 terawatt-hours | 31.8 terawatt-hours | 14.15 terawatt-hours | South Africa |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher primary energy from nuclear, Slovenia or South Africa?
- South Africa, at 32.52 terawatt-hours against 17.68 terawatt-hours in Slovenia as of 2025.
- What is the difference in primary energy from nuclear between Slovenia and South Africa?
- 14.84 terawatt-hours, with South Africa ahead.
- How many years of comparable data are there for Slovenia and South Africa?
- 36 years are reported by both, from 1990 to 2025.
- How do Slovenia and South Africa rank globally for primary energy from nuclear?
- Slovenia ranks 29th and South Africa ranks 27th of 219 countries.
- Where does this data come from?
- Energy Institute - Statistical Review of World Energy (2026); Smil (2017) β 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.