Share of primary energy from nuclear in CIS (EI)
CIS (EI): Share of primary energy from nuclear was 6.4% in 2025. ◆ Volatile
Share of primary energy from nuclear 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
The most recent figure for share of primary energy from nuclear in CIS (EI) is 6.4%, measured in 2025.
Compared with earlier readings it is up 1.4% on the previous year and up 3.8% over ten years.
Over the whole period, share of primary energy from nuclear 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)
- Primary energy from fossil fuels, nuclear, and renewables 6.4% (2025)
- Primary energy use 11,292 terawatt-hours (2025)
Frequently asked questions
- What is share of primary energy from nuclear in CIS (EI)?
- Share of primary energy from nuclear 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 share of primary energy from nuclear recorded in CIS (EI)?
- The highest recorded value was 6.6% in 2021.
- What is the lowest share of primary energy from nuclear recorded in CIS (EI)?
- The lowest recorded value was 0.1% in 1965.
- How does CIS (EI) rank for share of primary energy from nuclear?
- CIS (EI) ranks 2nd out of 3 groups with data for 2025.
- Is share of primary energy from nuclear 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 Share of primary energy from nuclear. Statizoid updates them automatically from the source API.
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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.