Share of primary energy from nuclear in Slovenia
Slovenia: Share of primary energy from nuclear was 25.7% in 2025. ▲ Rising
Share of primary energy from nuclear in Slovenia, 1990–2025
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
The most recent figure for share of primary energy from nuclear in Slovenia is 25.7%, measured in 2025.
Compared with earlier readings it is up 2.9% on the previous year and up 5.4% over ten years.
Over the whole period, share of primary energy from nuclear in Slovenia peaked at 26.8% in 2020 and was at its lowest, 18.9%, in 1996.
Slovenia ranks 5th of 216 countries on this measure, in the top 10%.
The long-run direction has been consistently rising across the 36 years of available data.
Share of primary energy from nuclear in Slovenia, year by year
| Year | % | Change |
|---|---|---|
| 1990 | 21.6% | — |
| 1991 | 23.5% | +8.9% |
| 1992 | 20.3% | -13.8% |
| 1993 | 19.4% | -4.3% |
| 1994 | 21.4% | +10.1% |
| 1995 | 20.8% | -2.7% |
| 1996 | 18.9% | -9.2% |
| 1997 | 20.1% | +6.3% |
| 1998 | 20.4% | +1.8% |
| 1999 | 19.5% | -4.7% |
| 2000 | 20.0% | +2.6% |
| 2001 | 21.0% | +4.9% |
| 2002 | 21.8% | +4.2% |
| 2003 | 20.8% | -4.8% |
| 2004 | 21.0% | +0.9% |
| 2005 | 22.1% | +5.6% |
| 2006 | 20.8% | -6.1% |
| 2007 | 21.3% | +2.2% |
| 2008 | 21.5% | +1.1% |
| 2009 | 21.8% | +1.2% |
| 2010 | 21.3% | -2.2% |
| 2011 | 23.5% | +10.6% |
| 2012 | 21.8% | -7.3% |
| 2013 | 21.5% | -1.3% |
| 2014 | 25.8% | +20.0% |
| 2015 | 24.4% | -5.7% |
| 2016 | 23.3% | -4.5% |
| 2017 | 24.8% | +6.7% |
| 2018 | 22.7% | -8.7% |
| 2019 | 23.4% | +3.3% |
| 2020 | 26.8% | +14.3% |
| 2021 | 24.3% | -9.3% |
| 2022 | 25.2% | +3.9% |
| 2023 | 25.3% | +0.4% |
| 2024 | 24.9% | -1.4% |
| 2025 | 25.7% | +2.9% |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | 20.6% | 18.9% | 23.5% | 10 |
| 2000s | 21.2% | 20.0% | 22.1% | 10 |
| 2010s | 23.3% | 21.3% | 25.8% | 10 |
| 2020s | 25.4% | 24.3% | 26.8% | 6 |
Countries ranked near Slovenia
More energy & mining data for Slovenia
- Fossil fuel consumption by fuel, per unit of GDP 0 terawatt-hours per US$ of GDP (2025)
- Primary energy use, annual growth rate -2.87 % 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 6.9% (2024)
Frequently asked questions
- What is share of primary energy from nuclear in Slovenia?
- Share of primary energy from nuclear in Slovenia was 25.7% 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 Slovenia?
- The highest recorded value was 26.8% in 2020.
- What is the lowest share of primary energy from nuclear recorded in Slovenia?
- The lowest recorded value was 18.9% in 1996.
- How does Slovenia rank for share of primary energy from nuclear?
- Slovenia ranks 5th out of 216 countries with data for 2025.
- Is share of primary energy from nuclear rising or falling in Slovenia?
- Over the last ten years it is up 5.4%. The long-run trend across the full record is rising.
- Where does this Slovenia 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.