Annual change in primary energy from hydropower in Slovenia
Slovenia: Annual change in primary energy from hydropower was -1.34 terawatt-hours in 2025. ◆ Volatile
Annual change in primary energy from hydropower in Slovenia, 1991–2025
Source: Energy Institute - Statistical Review of World Energy (2026); Smil (2017) – with major processing by Our World in Data. Measured in terawatt-hours.
Analysis
The most recent figure for annual change in primary energy from hydropower in Slovenia is -1.34 terawatt-hours, measured in 2025.
Compared with earlier readings it is down 526.1% on the previous year and up 41.2% over ten years.
Over the whole period, annual change in primary energy from hydropower in Slovenia peaked at 1.87 terawatt-hours in 2023 and was at its lowest, -2.28 terawatt-hours, in 2015.
Slovenia ranks 61st of 77 countries on this measure, in the bottom quarter.
The series is highly variable year to year, so single readings are best treated with caution.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | 0.085 terawatt-hours | -0.577 terawatt-hours | 0.634 terawatt-hours | 9 |
| 2000s | 0.0976 terawatt-hours | -0.634 terawatt-hours | 1.14 terawatt-hours | 10 |
| 2010s | -0.0236 terawatt-hours | -2.28 terawatt-hours | 1.46 terawatt-hours | 10 |
| 2020s | -0.081 terawatt-hours | -1.56 terawatt-hours | 1.87 terawatt-hours | 6 |
Countries ranked near Slovenia
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Frequently asked questions
- What is annual change in primary energy from hydropower in Slovenia?
- Annual change in primary energy from hydropower in Slovenia was -1.34 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 annual change in primary energy from hydropower recorded in Slovenia?
- The highest recorded value was 1.87 terawatt-hours in 2023.
- What is the lowest annual change in primary energy from hydropower recorded in Slovenia?
- The lowest recorded value was -2.28 terawatt-hours in 2015.
- How does Slovenia rank for annual change in primary energy from hydropower?
- Slovenia ranks 61st out of 77 countries with data for 2025.
- Is annual change in primary energy from hydropower rising or falling in Slovenia?
- Over the last ten years it is up 41.2%. 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 Annual change in primary energy from hydropower. Statizoid updates them automatically from the source API.
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About this data
Change in total energy supply relative to the previous year, measured in terawatt-hours.