Primary energy from nuclear in Slovakia
Slovakia: Primary energy from nuclear was 58.47 terawatt-hours in 2025. ◆ Volatile
Latest (2025)
58.47 terawatt-hours
Change on year
up 5.8%
World rank
19th
of 219 countries
All-time high
58.47 terawatt-hours
in 2025
All-time low
0 terawatt-hours
in 1965
Years of data
61
1965–2025
Primary energy from nuclear in Slovakia, 1965–2025
Source: Energy Institute – Statistical Review of World Energy (2026); Smil (2017) – with major processing by Our World in Data. Measured in terawatt-hours.
Analysis
The most recent figure for primary energy from nuclear in Slovakia is 58.47 terawatt-hours, measured in 2025. That is the highest value across all 61 years on record.
That represents a change of up 5.8% on the previous year and up 27.4% over ten years.
Over the whole period, primary energy from nuclear in Slovakia peaked at 58.47 terawatt-hours in 2025 and was at its lowest, 0 terawatt-hours, in 1965.
Slovakia ranks 19th of 219 countries on this measure, in the top 10%.
The series is highly variable year to year, so single readings are best treated with caution.
Primary energy from nuclear in Slovakia, year by year
| Year | terawatt-hours | Change |
|---|---|---|
| 1965 | 0 terawatt-hours | — |
| 1966 | 0 terawatt-hours | — |
| 1967 | 0 terawatt-hours | — |
| 1968 | 0 terawatt-hours | — |
| 1969 | 0 terawatt-hours | — |
| 1970 | 0 terawatt-hours | — |
| 1971 | 0 terawatt-hours | — |
| 1972 | 0.0091 terawatt-hours | — |
| 1973 | 0.703 terawatt-hours | +7633.3% |
| 1974 | 1.47 terawatt-hours | +109.5% |
| 1975 | 0.5667 terawatt-hours | -61.5% |
| 1976 | 1.34 terawatt-hours | +136.4% |
| 1977 | 0.3455 terawatt-hours | -74.2% |
| 1978 | 0.0576 terawatt-hours | -83.3% |
| 1979 | 6.51 terawatt-hours | +11200.0% |
| 1980 | 13.71 terawatt-hours | +110.7% |
| 1981 | 15.55 terawatt-hours | +13.5% |
| 1982 | 17.7 terawatt-hours | +13.8% |
| 1983 | 18.64 terawatt-hours | +5.3% |
| 1984 | 21.94 terawatt-hours | +17.7% |
| 1985 | 28.43 terawatt-hours | +29.6% |
| 1986 | 35.5 terawatt-hours | +24.9% |
| 1987 | 34.89 terawatt-hours | -1.7% |
| 1988 | 34.77 terawatt-hours | -0.3% |
| 1989 | 36.84 terawatt-hours | +6.0% |
| 1990 | 36.47 terawatt-hours | -1.0% |
| 1991 | 35.42 terawatt-hours | -2.9% |
| 1992 | 33.48 terawatt-hours | -5.5% |
| 1993 | 34.81 terawatt-hours | +3.9% |
| 1994 | 38.17 terawatt-hours | +9.7% |
| 1995 | 34.66 terawatt-hours | -9.2% |
| 1996 | 34.09 terawatt-hours | -1.6% |
| 1997 | 33.55 terawatt-hours | -1.6% |
| 1998 | 34.53 terawatt-hours | +2.9% |
| 1999 | 39.75 terawatt-hours | +15.1% |
| 2000 | 49.98 terawatt-hours | +25.7% |
| 2001 | 51.83 terawatt-hours | +3.7% |
| 2002 | 54.4 terawatt-hours | +5.0% |
| 2003 | 54.13 terawatt-hours | -0.5% |
| 2004 | 51.59 terawatt-hours | -4.7% |
| 2005 | 53.72 terawatt-hours | +4.1% |
| 2006 | 54.58 terawatt-hours | +1.6% |
| 2007 | 46.47 terawatt-hours | -14.9% |
| 2008 | 50.62 terawatt-hours | +8.9% |
| 2009 | 42.67 terawatt-hours | -15.7% |
| 2010 | 44.16 terawatt-hours | +3.5% |
| 2011 | 46.7 terawatt-hours | +5.7% |
| 2012 | 46.95 terawatt-hours | +0.5% |
| 2013 | 47.64 terawatt-hours | +1.5% |
| 2014 | 46.97 terawatt-hours | -1.4% |
| 2015 | 45.9 terawatt-hours | -2.3% |
| 2016 | 44.77 terawatt-hours | -2.5% |
| 2017 | 45.7 terawatt-hours | +2.1% |
| 2018 | 44.98 terawatt-hours | -1.6% |
| 2019 | 46.31 terawatt-hours | +3.0% |
| 2020 | 46.8 terawatt-hours | +1.1% |
| 2021 | 47.67 terawatt-hours | +1.9% |
| 2022 | 48.24 terawatt-hours | +1.2% |
| 2023 | 55.55 terawatt-hours | +15.2% |
| 2024 | 55.25 terawatt-hours | -0.6% |
| 2025 | 58.47 terawatt-hours | +5.8% |
Biggest year-on-year movements
Years where Primary energy from nuclear 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 | +11200.0% | 0.0576 terawatt-hours | 6.51 terawatt-hours |
| 1973 | +7633.3% | 0.0091 terawatt-hours | 0.703 terawatt-hours |
| 1976 | +136.4% | 0.5667 terawatt-hours | 1.34 terawatt-hours |
| 1980 | +110.7% | 6.51 terawatt-hours | 13.71 terawatt-hours |
| 1974 | +109.5% | 0.703 terawatt-hours | 1.47 terawatt-hours |
| 1978 | -83.3% | 0.3455 terawatt-hours | 0.0576 terawatt-hours |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 0 terawatt-hours | 0 terawatt-hours | 0 terawatt-hours | 5 |
| 1970s | 1.1 terawatt-hours | 0 terawatt-hours | 6.51 terawatt-hours | 10 |
| 1980s | 25.8 terawatt-hours | 13.71 terawatt-hours | 36.84 terawatt-hours | 10 |
| 1990s | 35.49 terawatt-hours | 33.48 terawatt-hours | 39.75 terawatt-hours | 10 |
| 2000s | 51 terawatt-hours | 42.67 terawatt-hours | 54.58 terawatt-hours | 10 |
| 2010s | 46.01 terawatt-hours | 44.16 terawatt-hours | 47.64 terawatt-hours | 10 |
| 2020s | 52 terawatt-hours | 46.8 terawatt-hours | 58.47 terawatt-hours | 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 primary energy from nuclear in Slovakia?
- Primary energy from nuclear in Slovakia was 58.47 terawatt-hours in 2025, according to Energy Institute – Statistical Review of World Energy (2026); Smil (2017) – with major processing by Our World in Data.
- What is the highest primary energy from nuclear recorded in Slovakia?
- The highest recorded value was 58.47 terawatt-hours in 2025.
- What is the lowest primary energy from nuclear recorded in Slovakia?
- The lowest recorded value was 0 terawatt-hours in 1965.
- How does Slovakia rank for primary energy from nuclear?
- Slovakia ranks 19th out of 219 countries with data for 2025.
- Is primary energy from nuclear rising or falling in Slovakia?
- Over the last ten years it is up 27.4%. 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) – with major processing by Our World in Data, published as part of Primary energy from nuclear. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 61 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Measured in terawatt-hours of total energy supply.