Solar energy generation vs. capacity in Slovenia
Slovenia: Solar energy generation vs. capacity was 1,537 terawatt-hours in 2025. ◆ Volatile
Solar energy generation vs. capacity in Slovenia, 1990–2025
Source: Energy Institute – Statistical Review of World Energy (2026) – with major processing by Our World in Data. Measured in terawatt-hours.
Analysis
In 2025, solar energy generation vs. capacity in Slovenia stood at 1,537 terawatt-hours. That is the highest value across all 36 years on record.
That represents a change of up 21.2% on the previous year and up 460.9% over ten years.
Over the whole period, solar energy generation vs. capacity in Slovenia peaked at 1,537 terawatt-hours in 2025 and was at its lowest, 0 terawatt-hours, in 1990.
That places Slovenia 59th out of 79 countries with data for 2025, putting it in the middle of the range.
The series is highly variable year to year, so single readings are best treated with caution.
Solar energy generation vs. capacity 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 | 1 terawatt-hours | — |
| 2009 | 4 terawatt-hours | +300.0% |
| 2010 | 13 terawatt-hours | +225.0% |
| 2011 | 66 terawatt-hours | +407.7% |
| 2012 | 163 terawatt-hours | +147.0% |
| 2013 | 215 terawatt-hours | +31.9% |
| 2014 | 257 terawatt-hours | +19.5% |
| 2015 | 274 terawatt-hours | +6.6% |
| 2016 | 267 terawatt-hours | -2.6% |
| 2017 | 283.87 terawatt-hours | +6.3% |
| 2018 | 254.96 terawatt-hours | -10.2% |
| 2019 | 303.04 terawatt-hours | +18.9% |
| 2020 | 368.2 terawatt-hours | +21.5% |
| 2021 | 453.11 terawatt-hours | +23.1% |
| 2022 | 645.59 terawatt-hours | +42.5% |
| 2023 | 984.36 terawatt-hours | +52.5% |
| 2024 | 1,268 terawatt-hours | +28.8% |
| 2025 | 1,537 terawatt-hours | +21.2% |
Slovenia compared with similar countries
- Slovenia's 1,537 terawatt-hours is below the median for high income countries, which is 4,936 terawatt-hours, 31% of the median. (47 countries reporting)
- Slovenia's 1,537 terawatt-hours is below the median for Europe & Central Asia, which is 4,430 terawatt-hours, 35% of the median. (39 countries reporting)
Biggest year-on-year movements
Years where Solar energy generation vs. capacity 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 |
|---|---|---|---|
| 2011 | +407.7% | 13 terawatt-hours | 66 terawatt-hours |
| 2009 | +300.0% | 1 terawatt-hours | 4 terawatt-hours |
| 2010 | +225.0% | 4 terawatt-hours | 13 terawatt-hours |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | 0 terawatt-hours | 0 terawatt-hours | 0 terawatt-hours | 10 |
| 2000s | 0.5 terawatt-hours | 0 terawatt-hours | 4 terawatt-hours | 10 |
| 2010s | 209.69 terawatt-hours | 13 terawatt-hours | 303.04 terawatt-hours | 10 |
| 2020s | 876.07 terawatt-hours | 368.2 terawatt-hours | 1,537 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 solar energy generation vs. capacity in Slovenia?
- Solar energy generation vs. capacity in Slovenia was 1,537 terawatt-hours in 2025, according to Energy Institute – Statistical Review of World Energy (2026) – with major processing by Our World in Data.
- What is the highest solar energy generation vs. capacity recorded in Slovenia?
- The highest recorded value was 1,537 terawatt-hours in 2025.
- What is the lowest solar energy generation vs. capacity recorded in Slovenia?
- The lowest recorded value was 0 terawatt-hours in 1990.
- How does Slovenia rank for solar energy generation vs. capacity?
- Slovenia ranks 59th out of 79 countries with data for 2025.
- Is solar energy generation vs. capacity rising or falling in Slovenia?
- Over the last ten years it is up 460.9%. 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) – with major processing by Our World in Data, published as part of Solar energy generation vs. capacity. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 36 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Figures are based on gross generation and do not account for cross-border electricity supply.