Share of primary energy that comes from nuclear and renewables in Slovakia
Slovakia: Share of primary energy that comes from nuclear and renewables was 32.5% in 2025. ◆ Volatile
Share of primary energy that comes from nuclear and renewables in Slovakia, 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 that comes from nuclear and renewables in Slovakia stood at 32.5%. That is the highest value across all 61 years on record.
The figure is up 4.8% on the previous year and up 28.9% over ten years.
Over the whole period, share of primary energy that comes from nuclear and renewables in Slovakia peaked at 32.5% in 2025 and was at its lowest, 0.0%, in 1965.
That places Slovakia 3rd out of 216 countries with data for 2025, putting it in the top 10%.
The series is highly variable year to year, so single readings are best treated with caution.
Share of primary energy that comes from nuclear and renewables in Slovakia, year by year
| Year | % | Change |
|---|---|---|
| 1965 | 0.0% | — |
| 1966 | 0.0% | — |
| 1967 | 0.0% | — |
| 1968 | 0.0% | — |
| 1969 | 0.0% | — |
| 1970 | 0.0% | — |
| 1971 | 0.0% | — |
| 1972 | 0.0% | — |
| 1973 | 0.4% | +7305.8% |
| 1974 | 0.9% | +100.9% |
| 1975 | 0.3% | -63.4% |
| 1976 | 0.7% | +127.6% |
| 1977 | 0.2% | -75.4% |
| 1978 | 0.0% | -84.2% |
| 1979 | 3.1% | +10817.4% |
| 1980 | 6.4% | +107.5% |
| 1981 | 7.3% | +14.0% |
| 1982 | 8.3% | +14.7% |
| 1983 | 8.7% | +5.1% |
| 1984 | 9.5% | +8.8% |
| 1985 | 12.0% | +26.0% |
| 1986 | 15.0% | +25.3% |
| 1987 | 14.5% | -3.7% |
| 1988 | 14.3% | -1.0% |
| 1989 | 15.0% | +4.6% |
| 1990 | 14.8% | -1.3% |
| 1991 | 16.1% | +9.1% |
| 1992 | 16.1% | -0.2% |
| 1993 | 17.4% | +8.2% |
| 1994 | 19.3% | +11.1% |
| 1995 | 17.1% | -11.7% |
| 1996 | 16.8% | -1.7% |
| 1997 | 16.6% | -0.9% |
| 1998 | 17.5% | +5.1% |
| 1999 | 19.8% | +13.7% |
| 2000 | 24.3% | +22.5% |
| 2001 | 23.5% | -3.2% |
| 2002 | 24.3% | +3.4% |
| 2003 | 24.6% | +1.1% |
| 2004 | 24.0% | -2.4% |
| 2005 | 24.4% | +1.5% |
| 2006 | 25.0% | +2.6% |
| 2007 | 22.8% | -9.0% |
| 2008 | 24.0% | +5.4% |
| 2009 | 22.5% | -6.1% |
| 2010 | 21.9% | -2.7% |
| 2011 | 23.8% | +8.5% |
| 2012 | 25.0% | +4.9% |
| 2013 | 24.9% | -0.4% |
| 2014 | 26.2% | +5.3% |
| 2015 | 25.2% | -3.7% |
| 2016 | 24.4% | -3.3% |
| 2017 | 23.6% | -3.1% |
| 2018 | 23.5% | -0.5% |
| 2019 | 25.2% | +7.0% |
| 2020 | 26.0% | +3.2% |
| 2021 | 24.4% | -5.9% |
| 2022 | 26.6% | +9.0% |
| 2023 | 29.9% | +12.4% |
| 2024 | 31.0% | +3.5% |
| 2025 | 32.5% | +4.8% |
Biggest year-on-year movements
Years where Share of primary energy that comes from nuclear and renewables in Slovakia 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 |
|---|---|---|---|
| 1979 | +10817.4% | 0.0% | 3.1% |
| 1973 | +7305.8% | 0.0% | 0.4% |
| 1976 | +127.6% | 0.3% | 0.7% |
| 1980 | +107.5% | 3.1% | 6.4% |
| 1974 | +100.9% | 0.4% | 0.9% |
| 1978 | -84.2% | 0.2% | 0.0% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 0.0% | 0.0% | 0.0% | 5 |
| 1970s | 0.6% | 0.0% | 3.1% | 10 |
| 1980s | 11.1% | 6.4% | 15.0% | 10 |
| 1990s | 17.1% | 14.8% | 19.8% | 10 |
| 2000s | 23.9% | 22.5% | 25.0% | 10 |
| 2010s | 24.4% | 21.9% | 26.2% | 10 |
| 2020s | 28.4% | 24.4% | 32.5% | 6 |
Countries ranked near Slovakia
More energy & mining data for Slovakia
- Fossil fuel consumption by fuel, per unit of GDP 0 terawatt-hours per US$ of GDP (2025)
- Primary energy use, annual growth rate 0.9653 % 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 8.1% (2024)
Frequently asked questions
- What is share of primary energy that comes from nuclear and renewables in Slovakia?
- Share of primary energy that comes from nuclear and renewables in Slovakia was 32.5% 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 that comes from nuclear and renewables recorded in Slovakia?
- The highest recorded value was 32.5% in 2025.
- What is the lowest share of primary energy that comes from nuclear and renewables recorded in Slovakia?
- The lowest recorded value was 0.0% in 1965.
- How does Slovakia rank for share of primary energy that comes from nuclear and renewables?
- Slovakia ranks 3rd out of 216 countries with data for 2025.
- Is share of primary energy that comes from nuclear and renewables rising or falling in Slovakia?
- Over the last ten years it is up 28.9%. The long-run trend across the full record is volatile.
- Where does this Slovakia 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 that comes from nuclear and renewables. Statizoid updates them automatically from the source API.
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About this data
Measured as a percentage of total energy supply.