Primary energy use by source in Slovenia
Slovenia: Primary energy use by source was 0.0068 terawatt-hours in 2025. ◆ Volatile
Primary energy use by source in Slovenia, 1990–2025
Source: Energy Institute – Statistical Review of World Energy (2026); Smil (2017) – with major processing by Our World in Data. Measured in terawatt-hours.
Analysis
In 2025, primary energy use by source in Slovenia stood at 0.0068 terawatt-hours. That is the highest value across all 36 years on record.
The figure is up 3.9% on the previous year and up 13.4% over ten years.
Over the whole period, primary energy use by source in Slovenia peaked at 0.0068 terawatt-hours in 2025 and was at its lowest, 0 terawatt-hours, in 1990.
Slovenia ranks 71st of 80 countries on this measure, in the bottom quarter.
The series is highly variable year to year, so single readings are best treated with caution.
Primary energy use by source in Slovenia, year by year
| Year | terawatt-hours | Change |
|---|---|---|
| 1990 | 0 terawatt-hours | — |
| 1991 | 0 terawatt-hours | — |
| 1992 | 0 terawatt-hours | — |
| 1993 | 0 terawatt-hours | — |
| 1994 | 0 terawatt-hours | — |
| 1995 | 0 terawatt-hours | — |
| 1996 | 0 terawatt-hours | — |
| 1997 | 0 terawatt-hours | — |
| 1998 | 0 terawatt-hours | — |
| 1999 | 0 terawatt-hours | — |
| 2000 | 0 terawatt-hours | — |
| 2001 | 0 terawatt-hours | — |
| 2002 | 0 terawatt-hours | — |
| 2003 | 0 terawatt-hours | — |
| 2004 | 0 terawatt-hours | — |
| 2005 | 0 terawatt-hours | — |
| 2006 | 0 terawatt-hours | — |
| 2007 | 0 terawatt-hours | — |
| 2008 | 0 terawatt-hours | — |
| 2009 | 0 terawatt-hours | — |
| 2010 | 0 terawatt-hours | — |
| 2011 | 0 terawatt-hours | — |
| 2012 | 0 terawatt-hours | — |
| 2013 | 0.004 terawatt-hours | — |
| 2014 | 0.004 terawatt-hours | +0.0% |
| 2015 | 0.006 terawatt-hours | +50.0% |
| 2016 | 0.006 terawatt-hours | +0.3% |
| 2017 | 0.0057 terawatt-hours | -5.0% |
| 2018 | 0.006 terawatt-hours | +5.3% |
| 2019 | 0.0062 terawatt-hours | +2.1% |
| 2020 | 0.0063 terawatt-hours | +1.6% |
| 2021 | 0.0056 terawatt-hours | -10.5% |
| 2022 | 0.0057 terawatt-hours | +2.5% |
| 2023 | 0.0064 terawatt-hours | +11.2% |
| 2024 | 0.0066 terawatt-hours | +2.8% |
| 2025 | 0.0068 terawatt-hours | +3.9% |
Slovenia compared with similar countries
- Slovenia's 0.0068 terawatt-hours is below the median for high income countries, which is 3.89 terawatt-hours, 0% of the median. (47 countries reporting)
- Slovenia's 0.0068 terawatt-hours is below the median for Europe & Central Asia, which is 4.18 terawatt-hours, 0% of the median. (39 countries reporting)
Biggest year-on-year movements
Years where Primary energy use by source in Slovenia 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 |
|---|---|---|---|
| 2015 | +50.0% | 0.004 terawatt-hours | 0.006 terawatt-hours |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | 0 terawatt-hours | 0 terawatt-hours | 0 terawatt-hours | 10 |
| 2000s | 0 terawatt-hours | 0 terawatt-hours | 0 terawatt-hours | 10 |
| 2010s | 0.0038 terawatt-hours | 0 terawatt-hours | 0.0062 terawatt-hours | 10 |
| 2020s | 0.0062 terawatt-hours | 0.0056 terawatt-hours | 0.0068 terawatt-hours | 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 primary energy use by source in Slovenia?
- Primary energy use by source in Slovenia was 0.0068 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 use by source recorded in Slovenia?
- The highest recorded value was 0.0068 terawatt-hours in 2025.
- What is the lowest primary energy use by source recorded in Slovenia?
- The lowest recorded value was 0 terawatt-hours in 1990.
- How does Slovenia rank for primary energy use by source?
- Slovenia ranks 71st out of 80 countries with data for 2025.
- Is primary energy use by source rising or falling in Slovenia?
- Over the last ten years it is up 13.4%. The long-run trend across the full record is volatile.
- Where does this Slovenia 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 use by source. Statizoid updates them automatically from the source API.
Download this data
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About this data
Measured in terawatt-hours of total energy supply.