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.
Share of primary energy from nuclear in CIS (EI), year by year
| Year | % | Change |
|---|---|---|
| 1965 | 0.1% | — |
| 1966 | 0.1% | +4.4% |
| 1967 | 0.1% | +3.7% |
| 1968 | 0.1% | +34.4% |
| 1969 | 0.1% | +11.0% |
| 1970 | 0.2% | +15.2% |
| 1971 | 0.2% | +16.9% |
| 1972 | 0.3% | +73.3% |
| 1973 | 0.4% | +38.2% |
| 1974 | 0.6% | +42.2% |
| 1975 | 0.8% | +26.8% |
| 1976 | 1.0% | +28.4% |
| 1977 | 1.3% | +28.1% |
| 1978 | 1.3% | -1.2% |
| 1979 | 1.4% | +10.6% |
| 1980 | 1.7% | +21.4% |
| 1981 | 2.0% | +15.3% |
| 1982 | 2.2% | +12.0% |
| 1983 | 2.4% | +8.8% |
| 1984 | 3.0% | +24.6% |
| 1985 | 2.7% | -9.0% |
| 1986 | 2.8% | +0.9% |
| 1987 | 3.2% | +15.9% |
| 1988 | 3.4% | +6.1% |
| 1989 | 3.3% | -1.6% |
| 1990 | 2.9% | -12.8% |
| 1991 | 3.0% | +3.9% |
| 1992 | 3.1% | +4.4% |
| 1993 | 3.4% | +8.2% |
| 1994 | 3.1% | -9.6% |
| 1995 | 3.3% | +8.3% |
| 1996 | 3.8% | +14.9% |
| 1997 | 4.0% | +5.2% |
| 1998 | 3.9% | -4.3% |
| 1999 | 4.5% | +16.2% |
| 2000 | 4.8% | +6.1% |
| 2001 | 4.9% | +2.6% |
| 2002 | 5.1% | +3.6% |
| 2003 | 5.2% | +3.1% |
| 2004 | 5.0% | -4.8% |
| 2005 | 5.1% | +3.2% |
| 2006 | 5.1% | +0.5% |
| 2007 | 5.2% | +1.0% |
| 2008 | 5.3% | +1.3% |
| 2009 | 5.5% | +4.9% |
| 2010 | 5.5% | -0.1% |
| 2011 | 5.3% | -3.0% |
| 2012 | 5.4% | +1.2% |
| 2013 | 5.4% | -0.9% |
| 2014 | 5.6% | +4.0% |
| 2015 | 6.2% | +10.6% |
| 2016 | 6.0% | -1.9% |
| 2017 | 6.2% | +2.0% |
| 2018 | 5.9% | -3.7% |
| 2019 | 6.1% | +2.6% |
| 2020 | 6.5% | +7.5% |
| 2021 | 6.6% | +0.6% |
| 2022 | 6.4% | -2.6% |
| 2023 | 6.3% | -1.0% |
| 2024 | 6.3% | -0.5% |
| 2025 | 6.4% | +1.4% |
Biggest year-on-year movements
Years where Share of primary energy from nuclear in CIS (EI) changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 1972 | +73.3% | 0.2% | 0.3% |
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)
- Primary energy use, annual growth rate 0.3921 % change on previous year (2025)
- Fossil fuel production by fuel 7,984 terawatt-hours (2025)
- Gas production 7,984 terawatt-hours (2025)
- Primary energy use, annual growth rate 0.3921 % change on previous year (2025)
- Fossil fuel consumption, annual growth rate 0.3332 % change on previous year (2025)
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- Oil consumption, annual growth rate 0.9331 % change on previous year (2025)
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- Share of electricity generation from fossil fuels 66.0% (2025)
- Coal consumption, annual growth rate -0.6577 % change on previous year (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 2 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.