Finland vs Slovakia: Annual change in primary energy from hydropower
Finland
-1.85 terawatt-hours
in 2025
Slovakia
-1.87 terawatt-hours
in 2025
Finland rank
65th
Slovakia rank
66th
Annual change in primary energy from hydropower over time
- Finland
- Slovakia
How they compare
Finland currently reports -1.85 terawatt-hours against -1.87 terawatt-hours in Slovakia, a difference of 0.02 terawatt-hours.
The two have swapped places 36 times across 60 shared years of data; in 1966 it was Finland ahead.
Finland ranks 65th and Slovakia ranks 66th of 80 countries.
Across the 7 decades both report, Finland averaged higher in 5 and Slovakia in 2.
Head to head by decade
| Decade | Finland | Slovakia | Difference | Ahead |
|---|---|---|---|---|
| 1960s | -0.152 terawatt-hours | -0.2298 terawatt-hours | 0.0778 terawatt-hours | Finland |
| 1970s | 0.2125 terawatt-hours | 0.058 terawatt-hours | 0.1545 terawatt-hours | Finland |
| 1980s | 0.216 terawatt-hours | 0.0078 terawatt-hours | 0.2082 terawatt-hours | Finland |
| 1990s | -0.025 terawatt-hours | 0.2512 terawatt-hours | 0.2762 terawatt-hours | Slovakia |
| 2000s | -0.0094 terawatt-hours | -0.0106 terawatt-hours | 0.0012 terawatt-hours | Finland |
| 2010s | -0.0266 terawatt-hours | -0.0012 terawatt-hours | 0.0254 terawatt-hours | Slovakia |
| 2020s | 0.004 terawatt-hours | -0.2332 terawatt-hours | 0.2372 terawatt-hours | Finland |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher annual change in primary energy from hydropower, Finland or Slovakia?
- Finland, at -1.85 terawatt-hours against -1.87 terawatt-hours in Slovakia as of 2025.
- What is the difference in annual change in primary energy from hydropower between Finland and Slovakia?
- 0.02 terawatt-hours, with Finland ahead.
- How many years of comparable data are there for Finland and Slovakia?
- 60 years are reported by both, from 1966 to 2025.
- How do Finland and Slovakia rank globally for annual change in primary energy from hydropower?
- Finland ranks 65th and Slovakia ranks 66th of 80 countries.
- Where does this data come from?
- Energy Institute – Statistical Review of World Energy (2026) – with major processing by Our World in Data, published as Annual change in primary energy from hydropower. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Change in total energy supply relative to the previous year, measured in terawatt-hours.