Hydropower generation by region in Slovenia
Slovenia: Hydropower generation by region was 3.99 terawatt-hours in 2025. ▲ Rising
Hydropower generation by region 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
Slovenia recorded 3.99 terawatt-hours for hydropower generation by region in 2025.
The figure is down 25.2% on the previous year and up 4.9% over ten years.
Over the whole period, hydropower generation by region in Slovenia peaked at 6.09 terawatt-hours in 2014 and was at its lowest, 2.96 terawatt-hours, in 2003.
That places Slovenia 45th out of 79 countries with data for 2025, putting it in the middle of the range.
The long-run direction has been consistently rising across the 36 years of available data.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | 3.36 terawatt-hours | 2.97 terawatt-hours | 3.74 terawatt-hours | 10 |
| 2000s | 3.7 terawatt-hours | 2.96 terawatt-hours | 4.71 terawatt-hours | 10 |
| 2010s | 4.41 terawatt-hours | 3.56 terawatt-hours | 6.09 terawatt-hours | 10 |
| 2020s | 4.52 terawatt-hours | 3.15 terawatt-hours | 5.34 terawatt-hours | 6 |
Countries ranked near Slovenia
More energy & mining data for Slovenia
- Fuel imports 6.9% (2024)
- Ores and metals imports 3.3% (2024)
- Ores and metals exports 3.0% (2024)
- Gas production 0.037 terawatt-hours (2024)
- Fossil fuel production per person, by fuel 17.49 kilowatt-hours per person (2024)
- Fossil fuel production by fuel 0.037 terawatt-hours (2024)
- Gas production per person 17.49 kilowatt-hours per person (2024)
- Fuel exports 4.7% (2024)
- Electric power transmission and distribution losses 5.1% (2024)
- Share of dietary energy supply from carbohydrates vs gdp per capita 56.18 (2023)
Frequently asked questions
- What is hydropower generation by region in Slovenia?
- Hydropower generation by region in Slovenia was 3.99 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 hydropower generation by region recorded in Slovenia?
- The highest recorded value was 6.09 terawatt-hours in 2014.
- What is the lowest hydropower generation by region recorded in Slovenia?
- The lowest recorded value was 2.96 terawatt-hours in 2003.
- How does Slovenia rank for hydropower generation by region?
- Slovenia ranks 45th out of 79 countries with data for 2025.
- Is hydropower generation by region rising or falling in Slovenia?
- Over the last ten years it is up 4.9%. 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) – with major processing by Our World in Data, published as part of Hydropower generation by region. 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 primary hydroelectric generation and do not account for cross-border electricity supply.