South Africa vs Sri Lanka: Annual change in primary energy from hydropower
South Africa
0.7203 terawatt-hours
in 2025
Sri Lanka
1.11 terawatt-hours
in 2025
South Africa rank
19th
Sri Lanka rank
16th
Annual change in primary energy from hydropower over time
- South Africa
- Sri Lanka
How they compare
Sri Lanka currently reports 1.11 terawatt-hours against 0.7203 terawatt-hours in South Africa, a difference of 0.3897 terawatt-hours.
That makes Sri Lanka's figure about 1.5 times South Africa's.
The two have swapped places 32 times across 60 shared years of data; in 1966 it was Sri Lanka ahead.
South Africa ranks 19th and Sri Lanka ranks 16th of 77 countries.
Across the 7 decades both report, South Africa averaged higher in 3 and Sri Lanka in 4.
Head to head by decade
| Decade | South Africa | Sri Lanka | Difference | Ahead |
|---|---|---|---|---|
| 1960s | -0.004 terawatt-hours | 0.046 terawatt-hours | 0.05 terawatt-hours | Sri Lanka |
| 1970s | 0.1123 terawatt-hours | 0.0913 terawatt-hours | 0.021 terawatt-hours | South Africa |
| 1980s | 0.1615 terawatt-hours | 0.1339 terawatt-hours | 0.0276 terawatt-hours | South Africa |
| 1990s | -0.2033 terawatt-hours | 0.1376 terawatt-hours | 0.3409 terawatt-hours | Sri Lanka |
| 2000s | 0.0726 terawatt-hours | -0.0286 terawatt-hours | 0.1012 terawatt-hours | South Africa |
| 2010s | -0.0775 terawatt-hours | 0.0921 terawatt-hours | 0.1696 terawatt-hours | Sri Lanka |
| 2020s | 0.1864 terawatt-hours | 0.5224 terawatt-hours | 0.336 terawatt-hours | Sri Lanka |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher annual change in primary energy from hydropower, South Africa or Sri Lanka?
- Sri Lanka, at 1.11 terawatt-hours against 0.7203 terawatt-hours in South Africa as of 2025.
- What is the difference in annual change in primary energy from hydropower between South Africa and Sri Lanka?
- 0.3897 terawatt-hours, with Sri Lanka ahead.
- How many years of comparable data are there for South Africa and Sri Lanka?
- 60 years are reported by both, from 1966 to 2025.
- How do South Africa and Sri Lanka rank globally for annual change in primary energy from hydropower?
- South Africa ranks 19th and Sri Lanka ranks 16th of 77 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 Annual change in primary energy from hydropower. 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.