Belgium vs Slovakia: Annual percentage change in primary energy from hydropower
Belgium
-32.0%
in 2025
Slovakia
-38.7%
in 2025
Belgium rank
63rd
Slovakia rank
66th
Annual percentage change in primary energy from hydropower over time
- Belgium
- Slovakia
How they compare
Belgium currently reports -32.0% against -38.7% in Slovakia, a difference of 6.7%.
The two have swapped places 34 times across 60 shared years of data; in 1966 it was Belgium ahead.
Belgium ranks 63rd and Slovakia ranks 66th of 68 countries.
Across the 7 decades both report, Belgium averaged higher in 6 and Slovakia in 1.
Head to head by decade
| Decade | Belgium | Slovakia | Difference | Ahead |
|---|---|---|---|---|
| 1960s | -3.4% | -12.2% | 8.8% | Belgium |
| 1970s | 7.7% | 7.2% | 0.5% | Belgium |
| 1980s | 4.4% | 1.9% | 2.5% | Belgium |
| 1990s | 4.4% | 11.8% | 7.3% | Slovakia |
| 2000s | 1.9% | 0.9% | 1.0% | Belgium |
| 2010s | 3.3% | 1.4% | 1.9% | Belgium |
| 2020s | 10.3% | -4.0% | 14.3% | Belgium |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher annual percentage change in primary energy from hydropower, Belgium or Slovakia?
- Belgium, at -32.0% against -38.7% in Slovakia as of 2025.
- What is the difference in annual percentage change in primary energy from hydropower between Belgium and Slovakia?
- 6.7%, with Belgium ahead.
- How many years of comparable data are there for Belgium and Slovakia?
- 60 years are reported by both, from 1966 to 2025.
- How do Belgium and Slovakia rank globally for annual percentage change in primary energy from hydropower?
- Belgium ranks 63rd and Slovakia ranks 66th of 68 countries.
- Where does this data come from?
- Energy Institute - Statistical Review of World Energy (2026); Smil (2017) – with major processing by Our World in Data, published as Annual percentage 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
Percentage change in total energy supply relative to the previous year.