OECD (EI) vs South Africa: Annual change in primary energy from nuclear
OECD (EI)
-4.94 terawatt-hours
in 2025
South Africa
7.68 terawatt-hours
in 2025
OECD (EI) rank
2nd
South Africa rank
7th
Annual change in primary energy from nuclear over time
- OECD (EI)
- South Africa
How they compare
South Africa currently reports 7.68 terawatt-hours against -4.94 terawatt-hours in OECD (EI), a difference of 12.62 terawatt-hours.
That makes South Africa's figure about 1.6 times OECD (EI)'s.
The two have swapped places 15 times across 60 shared years of data; in 1966 it was OECD (EI) ahead.
OECD (EI) ranks 2nd and South Africa ranks 7th of 2 groups.
Across the 7 decades both report, OECD (EI) averaged higher in 5 and South Africa in 2.
Head to head by decade
| Decade | OECD (EI) | South Africa | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 25.53 terawatt-hours | 0 terawatt-hours | 25.53 terawatt-hours | OECD (EI) |
| 1970s | 156.44 terawatt-hours | 0 terawatt-hours | 156.44 terawatt-hours | OECD (EI) |
| 1980s | 332.57 terawatt-hours | 3.36 terawatt-hours | 329.21 terawatt-hours | OECD (EI) |
| 1990s | 165.41 terawatt-hours | 0.5267 terawatt-hours | 164.88 terawatt-hours | OECD (EI) |
| 2000s | 12.36 terawatt-hours | -0.0094 terawatt-hours | 12.37 terawatt-hours | OECD (EI) |
| 2010s | -79.89 terawatt-hours | 0.4481 terawatt-hours | 80.34 terawatt-hours | South Africa |
| 2020s | -58.27 terawatt-hours | -1.79 terawatt-hours | 56.48 terawatt-hours | South Africa |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher annual change in primary energy from nuclear, OECD (EI) or South Africa?
- South Africa, at 7.68 terawatt-hours against -4.94 terawatt-hours in OECD (EI) as of 2025.
- What is the difference in annual change in primary energy from nuclear between OECD (EI) and South Africa?
- 12.62 terawatt-hours, with South Africa ahead.
- How many years of comparable data are there for OECD (EI) and South Africa?
- 60 years are reported by both, from 1966 to 2025.
- How do OECD (EI) and South Africa rank globally for annual change in primary energy from nuclear?
- OECD (EI) ranks 2nd and South Africa ranks 7th of 2 groups.
- 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 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.