Share of primary energy from nuclear in Switzerland
Switzerland: Share of primary energy from nuclear was 22.8% in 2025. ▲ Rising
Share of primary energy from nuclear in Switzerland, 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
In 2025, share of primary energy from nuclear in Switzerland stood at 22.8%.
The figure is down 12.4% on the previous year and down 9.4% over ten years.
Over the whole period, share of primary energy from nuclear in Switzerland peaked at 29.1% in 2014 and was at its lowest, 0.0%, in 1965.
Switzerland ranks 9th of 216 countries on this measure, in the top 10%.
The long-run direction has been consistently rising across the 61 years of available data.
Share of primary energy from nuclear in Switzerland, year by year
| Year | % | Change |
|---|---|---|
| 1965 | 0.0% | — |
| 1966 | 0.0% | — |
| 1967 | 0.0% | — |
| 1968 | 0.0% | — |
| 1969 | 0.9% | — |
| 1970 | 2.8% | +195.9% |
| 1971 | 2.1% | -23.6% |
| 1972 | 5.7% | +167.8% |
| 1973 | 8.4% | +48.1% |
| 1974 | 10.1% | +19.7% |
| 1975 | 11.0% | +9.0% |
| 1976 | 11.2% | +2.2% |
| 1977 | 10.9% | -3.0% |
| 1978 | 11.2% | +2.5% |
| 1979 | 15.5% | +38.6% |
| 1980 | 17.8% | +14.9% |
| 1981 | 19.3% | +8.4% |
| 1982 | 19.7% | +2.1% |
| 1983 | 19.3% | -2.0% |
| 1984 | 22.5% | +16.9% |
| 1985 | 25.6% | +13.6% |
| 1986 | 24.3% | -5.1% |
| 1987 | 25.2% | +3.9% |
| 1988 | 25.0% | -1.0% |
| 1989 | 26.0% | +4.2% |
| 1990 | 25.6% | -1.6% |
| 1991 | 24.5% | -4.4% |
| 1992 | 24.6% | +0.6% |
| 1993 | 25.1% | +1.9% |
| 1994 | 25.2% | +0.3% |
| 1995 | 26.8% | +6.3% |
| 1996 | 27.0% | +0.7% |
| 1997 | 26.1% | -3.3% |
| 1998 | 26.2% | +0.6% |
| 1999 | 25.0% | -4.5% |
| 2000 | 26.8% | +7.0% |
| 2001 | 25.7% | -4.2% |
| 2002 | 27.2% | +6.2% |
| 2003 | 27.7% | +1.6% |
| 2004 | 27.0% | -2.5% |
| 2005 | 24.3% | -9.9% |
| 2006 | 27.8% | +14.4% |
| 2007 | 28.1% | +1.1% |
| 2008 | 27.2% | -3.1% |
| 2009 | 27.7% | +1.9% |
| 2010 | 26.4% | -4.9% |
| 2011 | 28.3% | +7.4% |
| 2012 | 26.2% | -7.5% |
| 2013 | 26.2% | +0.1% |
| 2014 | 29.1% | +10.7% |
| 2015 | 25.2% | -13.2% |
| 2016 | 24.3% | -3.5% |
| 2017 | 23.3% | -4.2% |
| 2018 | 27.1% | +16.3% |
| 2019 | 27.1% | -0.2% |
| 2020 | 27.4% | +1.1% |
| 2021 | 23.9% | -12.5% |
| 2022 | 27.5% | +15.1% |
| 2023 | 27.0% | -1.9% |
| 2024 | 26.1% | -3.5% |
| 2025 | 22.8% | -12.4% |
Biggest year-on-year movements
Years where Share of primary energy from nuclear in Switzerland 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 |
|---|---|---|---|
| 1970 | +195.9% | 0.9% | 2.8% |
| 1972 | +167.8% | 2.1% | 5.7% |
| 1973 | +48.1% | 5.7% | 8.4% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 0.2% | 0.0% | 0.9% | 5 |
| 1970s | 8.9% | 2.1% | 15.5% | 10 |
| 1980s | 22.5% | 17.8% | 26.0% | 10 |
| 1990s | 25.6% | 24.5% | 27.0% | 10 |
| 2000s | 27.0% | 24.3% | 28.1% | 10 |
| 2010s | 26.3% | 23.3% | 29.1% | 10 |
| 2020s | 25.8% | 22.8% | 27.5% | 6 |
Countries ranked near Switzerland
More energy & mining data for Switzerland
- Fossil fuel consumption by fuel, per unit of GDP 0 terawatt-hours per US$ of GDP (2025)
- Primary energy use, annual growth rate -8.75 % change on previous year (2025)
- Coal consumption, per capita 0 terawatt-hours per person (2025)
- Coal consumption, per unit of GDP 0 terawatt-hours per US$ of GDP (2025)
- Primary energy use, per unit of GDP 0 terawatt-hours per US$ of GDP (2025)
- Primary energy use, per capita 0 terawatt-hours per person (2025)
- Coal production, per capita 0 terawatt-hours per person (2024)
- Coal production, per unit of GDP 0 terawatt-hours per US$ of GDP (2024)
- Fossil fuel consumption by fuel, per capita 0 terawatt-hours per person (2025)
- Fuel imports 3.2% (2024)
Frequently asked questions
- What is share of primary energy from nuclear in Switzerland?
- Share of primary energy from nuclear in Switzerland was 22.8% 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 Switzerland?
- The highest recorded value was 29.1% in 2014.
- What is the lowest share of primary energy from nuclear recorded in Switzerland?
- The lowest recorded value was 0.0% in 1965.
- How does Switzerland rank for share of primary energy from nuclear?
- Switzerland ranks 9th out of 216 countries with data for 2025.
- Is share of primary energy from nuclear rising or falling in Switzerland?
- Over the last ten years it is down 9.4%. The long-run trend across the full record is rising.
- Where does this Switzerland 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.