Share of primary energy from nuclear in Slovakia
Slovakia: Share of primary energy from nuclear was 32.5% in 2025. ◆ Volatile
Share of primary energy from nuclear 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
Slovakia recorded 32.5% for share of primary energy from nuclear in 2025. That is the highest value across all 61 years on record.
Compared with earlier readings it is up 4.8% on the previous year and up 28.9% over ten years.
Over the whole period, share of primary energy from nuclear in Slovakia peaked at 32.5% in 2025 and was at its lowest, 0.0%, in 1965.
Slovakia ranks 3rd of 215 countries on this measure, in the top 10%.
The series is highly variable year to year, so single readings are best treated with caution.
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
- Fuel imports 8.1% (2024)
- Ores and metals imports 2.7% (2024)
- Ores and metals exports 1.7% (2024)
- Gas production 0.4055 terawatt-hours (2024)
- Fossil fuel production per person, by fuel 73.64 kilowatt-hours per person (2024)
- Fossil fuel production by fuel 0.4055 terawatt-hours (2024)
- Gas production per person 73.64 kilowatt-hours per person (2024)
- Fuel exports 4.0% (2024)
- Electric power transmission and distribution losses 3.7% (2024)
- Share of dietary energy supply from carbohydrates vs. GDP per capita 47.0% (2023)
Frequently asked questions
- What is share of primary energy from nuclear in Slovakia?
- Share of primary energy from nuclear 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 from nuclear recorded in Slovakia?
- The highest recorded value was 32.5% in 2025.
- What is the lowest share of primary energy from nuclear recorded in Slovakia?
- The lowest recorded value was 0.0% in 1965.
- How does Slovakia rank for share of primary energy from nuclear?
- Slovakia ranks 3rd out of 215 countries with data for 2025.
- Is share of primary energy from nuclear 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 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.