Iran vs Sri Lanka: Primary energy use by source
Iran
1.17 terawatt-hours
in 2025
Sri Lanka
0.8243 terawatt-hours
in 2025
Iran rank
48th
Sri Lanka rank
50th
Primary energy use by source over time
- Iran
- Sri Lanka
How they compare
Iran currently reports 1.17 terawatt-hours against 0.8243 terawatt-hours in Sri Lanka, a difference of 0.3457 terawatt-hours.
That makes Iran's figure about 1.4 times Sri Lanka's.
The two have swapped places 3 times across 61 shared years of data; in 1965 it was Sri Lanka ahead.
Iran ranks 48th and Sri Lanka ranks 50th of 79 countries.
Iran has averaged higher in every one of the 7 decades both report.
Head to head by decade
| Decade | Iran | Sri Lanka | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 0 terawatt-hours | 0 terawatt-hours | 0 terawatt-hours | — |
| 1970s | 0 terawatt-hours | 0 terawatt-hours | 0 terawatt-hours | — |
| 1980s | 0 terawatt-hours | 0 terawatt-hours | 0 terawatt-hours | — |
| 1990s | 0.0035 terawatt-hours | 0.0003 terawatt-hours | 0.0032 terawatt-hours | Iran |
| 2000s | 0.0934 terawatt-hours | 0.003 terawatt-hours | 0.0903 terawatt-hours | Iran |
| 2010s | 0.317 terawatt-hours | 0.2528 terawatt-hours | 0.0642 terawatt-hours | Iran |
| 2020s | 1.14 terawatt-hours | 0.7028 terawatt-hours | 0.4405 terawatt-hours | Iran |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher primary energy use by source, Iran or Sri Lanka?
- Iran, at 1.17 terawatt-hours against 0.8243 terawatt-hours in Sri Lanka as of 2025.
- What is the difference in primary energy use by source between Iran and Sri Lanka?
- 0.3457 terawatt-hours, with Iran ahead.
- How many years of comparable data are there for Iran and Sri Lanka?
- 61 years are reported by both, from 1965 to 2025.
- How do Iran and Sri Lanka rank globally for primary energy use by source?
- Iran ranks 48th and Sri Lanka ranks 50th of 79 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 Primary energy use by source. 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.