Iran vs Vietnam: Annual change in primary energy from fossil fuels
Iran
31.82 terawatt-hours
in 2025
Vietnam
30.28 terawatt-hours
in 2025
Iran rank
12th
Vietnam rank
13th
Annual change in primary energy from fossil fuels over time
- Iran
- Vietnam
How they compare
Iran currently reports 31.82 terawatt-hours against 30.28 terawatt-hours in Vietnam, a difference of 1.54 terawatt-hours.
That makes Iran's figure about 1.1 times Vietnam's.
The two have swapped places 12 times across 44 shared years of data; in 1982 it was Iran ahead.
Iran ranks 12th and Vietnam ranks 13th of 76 countries.
Iran has averaged higher in every one of the 5 decades both report.
Head to head by decade
| Decade | Iran | Vietnam | Difference | Ahead |
|---|---|---|---|---|
| 1980s | 38.94 terawatt-hours | 1.31 terawatt-hours | 37.63 terawatt-hours | Iran |
| 1990s | 61.52 terawatt-hours | 8.7 terawatt-hours | 52.82 terawatt-hours | Iran |
| 2000s | 104.36 terawatt-hours | 23.65 terawatt-hours | 80.71 terawatt-hours | Iran |
| 2010s | 82.85 terawatt-hours | 58.94 terawatt-hours | 23.91 terawatt-hours | Iran |
| 2020s | 77.99 terawatt-hours | 29.69 terawatt-hours | 48.3 terawatt-hours | Iran |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher annual change in primary energy from fossil fuels, Iran or Vietnam?
- Iran, at 31.82 terawatt-hours against 30.28 terawatt-hours in Vietnam as of 2025.
- What is the difference in annual change in primary energy from fossil fuels between Iran and Vietnam?
- 1.54 terawatt-hours, with Iran ahead.
- How many years of comparable data are there for Iran and Vietnam?
- 44 years are reported by both, from 1982 to 2025.
- How do Iran and Vietnam rank globally for annual change in primary energy from fossil fuels?
- Iran ranks 12th and Vietnam ranks 13th of 76 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 Annual change in primary energy from fossil fuels. 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.