CIS (EI) vs Iran: Fossil fuel consumption
CIS (EI)
10,268 terawatt-hours
in 2025
Iran
3,656 terawatt-hours
in 2025
CIS (EI) rank
3rd
Iran rank
6th
Fossil fuel consumption over time
- CIS (EI)
- Iran
How they compare
CIS (EI) currently reports 10,268 terawatt-hours against 3,656 terawatt-hours in Iran, a difference of 6,612 terawatt-hours.
That makes CIS (EI)'s figure about 2.8 times Iran's.
Across all 61 years both countries report, CIS (EI) has been ahead every year.
CIS (EI) ranks 3rd and Iran ranks 6th of 3 groups.
CIS (EI) has averaged higher in every one of the 7 decades both report.
Head to head by decade
| Decade | CIS (EI) | Iran | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 7,391 terawatt-hours | 111.88 terawatt-hours | 7,279 terawatt-hours | CIS (EI) |
| 1970s | 10,515 terawatt-hours | 291.93 terawatt-hours | 10,224 terawatt-hours | CIS (EI) |
| 1980s | 12,432 terawatt-hours | 548.94 terawatt-hours | 11,883 terawatt-hours | CIS (EI) |
| 1990s | 9,369 terawatt-hours | 1,031 terawatt-hours | 8,338 terawatt-hours | CIS (EI) |
| 2000s | 8,329 terawatt-hours | 1,872 terawatt-hours | 6,457 terawatt-hours | CIS (EI) |
| 2010s | 9,213 terawatt-hours | 2,765 terawatt-hours | 6,448 terawatt-hours | CIS (EI) |
| 2020s | 9,894 terawatt-hours | 3,488 terawatt-hours | 6,406 terawatt-hours | CIS (EI) |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher fossil fuel consumption, CIS (EI) or Iran?
- CIS (EI), at 10,268 terawatt-hours against 3,656 terawatt-hours in Iran as of 2025.
- What is the difference in fossil fuel consumption between CIS (EI) and Iran?
- 6,612 terawatt-hours, with CIS (EI) ahead.
- How many years of comparable data are there for CIS (EI) and Iran?
- 61 years are reported by both, from 1965 to 2025.
- How do CIS (EI) and Iran rank globally for fossil fuel consumption?
- CIS (EI) ranks 3rd and Iran ranks 6th of 3 groups.
- Where does this data come from?
- Energy Institute - Statistical Review of World Energy (2026) and other sources – with major processing by Our World in Data, published as Fossil fuel consumption. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Measured in terawatt-hours. Fossil fuels include coal, oil, and gas.