Primary energy from fossil fuels, nuclear, and renewables in CIS (EI)
CIS (EI): Primary energy from fossil fuels, nuclear, and renewables was 6.4% in 2025. ◆ Volatile
Primary energy from fossil fuels, nuclear, and renewables in CIS (EI), 1965–2025
Source: Energy Institute - Statistical Review of World Energy (2026); Smil (2017); U.S. Energy Information Administration (2026) – with major processing by Our World in Data. Measured in %.
Analysis
CIS (EI) recorded 6.4% for primary energy from fossil fuels, nuclear, and renewables in 2025.
The figure is up 1.4% on the previous year and up 3.8% over ten years.
Over the whole period, primary energy from fossil fuels, nuclear, and renewables in CIS (EI) peaked at 6.6% in 2021 and was at its lowest, 0.1%, in 1965.
The series is highly variable year to year, so single readings are best treated with caution.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 0.1% | 0.1% | 0.1% | 5 |
| 1970s | 0.7% | 0.2% | 1.4% | 10 |
| 1980s | 2.7% | 1.7% | 3.4% | 10 |
| 1990s | 3.5% | 2.9% | 4.5% | 10 |
| 2000s | 5.1% | 4.8% | 5.5% | 10 |
| 2010s | 5.8% | 5.3% | 6.2% | 10 |
| 2020s | 6.4% | 6.3% | 6.6% | 6 |
Countries ranked near CIS (EI)
More energy & mining data for CIS (EI)
- Fossil fuel production by fuel 7,984 terawatt-hours (2025)
- Gas production 7,984 terawatt-hours (2025)
- Share of electricity generation from fossil fuels 66.0% (2025)
- Electricity generation from nuclear 238.54 terawatt-hours (2025)
- Coal production 3,191 terawatt-hours (2025)
- Coal production 3,191 terawatt-hours (2025)
- Oil consumption 2,594 terawatt-hours (2025)
- Fossil fuel consumption by fuel 6,153 terawatt-hours (2025)
- Annual percentage change in primary energy use 0.4% (2025)
- Primary energy use 11,292 terawatt-hours (2025)
Frequently asked questions
- What is primary energy from fossil fuels, nuclear, and renewables in CIS (EI)?
- Primary energy from fossil fuels, nuclear, and renewables in CIS (EI) was 6.4% in 2025, according to Energy Institute - Statistical Review of World Energy (2026); Smil (2017); U.S. Energy Information Administration (2026) – with major processing by Our World in Data.
- What is the highest primary energy from fossil fuels, nuclear, and renewables recorded in CIS (EI)?
- The highest recorded value was 6.6% in 2021.
- What is the lowest primary energy from fossil fuels, nuclear, and renewables recorded in CIS (EI)?
- The lowest recorded value was 0.1% in 1965.
- How does CIS (EI) rank for primary energy from fossil fuels, nuclear, and renewables?
- CIS (EI) ranks 2nd out of 3 groups with data for 2025.
- Is primary energy from fossil fuels, nuclear, and renewables rising or falling in CIS (EI)?
- Over the last ten years it is up 3.8%. The long-run trend across the full record is volatile.
- Where does this CIS (EI) data come from?
- The figures come from Energy Institute - Statistical Review of World Energy (2026); Smil (2017); U.S. Energy Information Administration (2026) – with major processing by Our World in Data, published as part of Primary energy from fossil fuels, nuclear, and renewables. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 61 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Measured as a percentage of total energy supply.