Iran, Islamic Republic of vs Sri Lanka: Hydropower generation by region
Iran, Islamic Republic of
11.96 terawatt-hours
in 2025
Sri Lanka
7.95 terawatt-hours
in 2025
Iran, Islamic Republic of rank
37th
Sri Lanka rank
40th
Hydropower generation by region over time
- Iran, Islamic Republic of
- Sri Lanka
How they compare
Iran, Islamic Republic of currently reports 11.96 terawatt-hours against 7.95 terawatt-hours in Sri Lanka, a difference of 4.01 terawatt-hours.
That makes Iran, Islamic Republic of's figure about 1.5 times Sri Lanka's.
Across all 61 years both countries report, Iran, Islamic Republic of has been ahead every year.
Iran, Islamic Republic of ranks 37th and Sri Lanka ranks 40th of 80 countries.
Iran, Islamic Republic of has averaged higher in every one of the 7 decades both report.
Head to head by decade
| Decade | Iran, Islamic Republic of | Sri Lanka | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 2 terawatt-hours | 0.4394 terawatt-hours | 1.56 terawatt-hours | Iran, Islamic Republic of |
| 1970s | 3.77 terawatt-hours | 1.03 terawatt-hours | 2.74 terawatt-hours | Iran, Islamic Republic of |
| 1980s | 6.59 terawatt-hours | 2.06 terawatt-hours | 4.53 terawatt-hours | Iran, Islamic Republic of |
| 1990s | 7.53 terawatt-hours | 3.64 terawatt-hours | 3.9 terawatt-hours | Iran, Islamic Republic of |
| 2000s | 10.25 terawatt-hours | 3.54 terawatt-hours | 6.71 terawatt-hours | Iran, Islamic Republic of |
| 2010s | 15.22 terawatt-hours | 5.05 terawatt-hours | 10.17 terawatt-hours | Iran, Islamic Republic of |
| 2020s | 17.45 terawatt-hours | 6.58 terawatt-hours | 10.86 terawatt-hours | Iran, Islamic Republic of |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher hydropower generation by region, Iran, Islamic Republic of or Sri Lanka?
- Iran, Islamic Republic of, at 11.96 terawatt-hours against 7.95 terawatt-hours in Sri Lanka as of 2025.
- What is the difference in hydropower generation by region between Iran, Islamic Republic of and Sri Lanka?
- 4.01 terawatt-hours, with Iran, Islamic Republic of ahead.
- How many years of comparable data are there for Iran, Islamic Republic of and Sri Lanka?
- 61 years are reported by both, from 1965 to 2025.
- How do Iran, Islamic Republic of and Sri Lanka rank globally for hydropower generation by region?
- Iran, Islamic Republic of ranks 37th and Sri Lanka ranks 40th of 80 countries.
- Where does this data come from?
- Energy Institute - Statistical Review of World Energy (2026) β with major processing by Our World in Data, published as Hydropower generation by region. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Figures are based on gross primary hydroelectric generation and do not account for cross-border electricity supply.