Share of primary energy from nuclear in OECD (EI)
OECD (EI): Share of primary energy from nuclear was 9.3% in 2025. ◆ Volatile
Share of primary energy from nuclear in OECD (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
OECD (EI) recorded 9.3% for share of primary energy from nuclear in 2025.
Compared with earlier readings it is down 0.9% on the previous year and down 2.8% over ten years.
Over the whole period, share of primary energy from nuclear in OECD (EI) peaked at 11.2% in 2001 and was at its lowest, 0.2%, 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 OECD (EI), year by year
| Year | % | Change |
|---|---|---|
| 1965 | 0.2% | — |
| 1966 | 0.3% | +30.1% |
| 1967 | 0.4% | +15.2% |
| 1968 | 0.4% | +18.5% |
| 1969 | 0.5% | +9.6% |
| 1970 | 0.6% | +20.3% |
| 1971 | 0.8% | +37.7% |
| 1972 | 1.0% | +29.8% |
| 1973 | 1.3% | +25.3% |
| 1974 | 1.7% | +31.0% |
| 1975 | 2.4% | +40.9% |
| 1976 | 2.6% | +8.8% |
| 1977 | 3.1% | +21.7% |
| 1978 | 3.6% | +14.0% |
| 1979 | 3.6% | +0.1% |
| 1980 | 4.0% | +10.9% |
| 1981 | 4.8% | +20.5% |
| 1982 | 5.3% | +10.7% |
| 1983 | 6.0% | +12.3% |
| 1984 | 6.8% | +14.7% |
| 1985 | 8.0% | +16.8% |
| 1986 | 8.6% | +7.6% |
| 1987 | 9.0% | +4.2% |
| 1988 | 9.4% | +4.5% |
| 1989 | 9.5% | +1.9% |
| 1990 | 9.8% | +3.3% |
| 1991 | 10.3% | +4.4% |
| 1992 | 10.3% | +0.0% |
| 1993 | 10.5% | +2.4% |
| 1994 | 10.6% | +0.7% |
| 1995 | 10.8% | +2.1% |
| 1996 | 10.8% | -0.6% |
| 1997 | 10.6% | -1.9% |
| 1998 | 10.8% | +1.9% |
| 1999 | 11.0% | +2.1% |
| 2000 | 10.9% | -0.5% |
| 2001 | 11.2% | +2.9% |
| 2002 | 11.2% | -0.0% |
| 2003 | 10.7% | -4.4% |
| 2004 | 11.0% | +2.8% |
| 2005 | 11.0% | -0.5% |
| 2006 | 11.1% | +0.6% |
| 2007 | 10.7% | -3.5% |
| 2008 | 10.7% | +0.4% |
| 2009 | 11.1% | +3.6% |
| 2010 | 10.9% | -1.7% |
| 2011 | 10.4% | -4.9% |
| 2012 | 9.5% | -8.0% |
| 2013 | 9.5% | -0.2% |
| 2014 | 9.7% | +1.5% |
| 2015 | 9.6% | -0.8% |
| 2016 | 9.5% | -0.4% |
| 2017 | 9.4% | -1.6% |
| 2018 | 9.3% | -0.9% |
| 2019 | 9.5% | +2.4% |
| 2020 | 9.7% | +1.8% |
| 2021 | 9.5% | -2.6% |
| 2022 | 8.9% | -6.3% |
| 2023 | 9.2% | +4.4% |
| 2024 | 9.4% | +1.8% |
| 2025 | 9.3% | -0.9% |
Biggest year-on-year movements
Years where Share of primary energy from nuclear in OECD (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 |
|---|---|---|---|
| 1975 | +40.9% | 1.7% | 2.4% |
| 1971 | +37.7% | 0.6% | 0.8% |
| 1974 | +31.0% | 1.3% | 1.7% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 0.4% | 0.2% | 0.5% | 5 |
| 1970s | 2.1% | 0.6% | 3.6% | 10 |
| 1980s | 7.1% | 4.0% | 9.5% | 10 |
| 1990s | 10.5% | 9.8% | 11.0% | 10 |
| 2000s | 11.0% | 10.7% | 11.2% | 10 |
| 2010s | 9.7% | 9.3% | 10.9% | 10 |
| 2020s | 9.3% | 8.9% | 9.7% | 6 |
Countries ranked near OECD (EI)
More energy & mining data for OECD (EI)
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Frequently asked questions
- What is share of primary energy from nuclear in OECD (EI)?
- Share of primary energy from nuclear in OECD (EI) was 9.3% 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 OECD (EI)?
- The highest recorded value was 11.2% in 2001.
- What is the lowest share of primary energy from nuclear recorded in OECD (EI)?
- The lowest recorded value was 0.2% in 1965.
- How does OECD (EI) rank for share of primary energy from nuclear?
- OECD (EI) ranks 1st out of 2 groups with data for 2025.
- Is share of primary energy from nuclear rising or falling in OECD (EI)?
- Over the last ten years it is down 2.8%. The long-run trend across the full record is volatile.
- Where does this OECD (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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About this data
Measured as a percentage of total energy supply.