Belgium vs Iran: Annual percentage change in primary energy from hydropower
Belgium
-32.0%
in 2025
Iran
-36.6%
in 2025
Belgium rank
63rd
Iran rank
65th
Annual percentage change in primary energy from hydropower over time
- Belgium
- Iran
How they compare
Belgium currently reports -32.0% against -36.6% in Iran, a difference of 4.6%.
The two have swapped places 32 times across 59 shared years of data; in 1966 it was Belgium ahead.
Belgium ranks 63rd and Iran ranks 65th of 68 countries.
Across the 7 decades both report, Belgium averaged higher in 3 and Iran in 4.
Head to head by decade
| Decade | Belgium | Iran | Difference | Ahead |
|---|---|---|---|---|
| 1960s | -3.4% | 7.6% | 11.0% | Iran |
| 1970s | 7.7% | 10.5% | 2.8% | Iran |
| 1980s | 4.4% | 2.8% | 1.6% | Belgium |
| 1990s | 4.4% | 1.8% | 2.6% | Belgium |
| 2000s | 1.9% | 9.9% | 8.0% | Iran |
| 2010s | 3.3% | 31.1% | 27.8% | Iran |
| 2020s | 19.4% | -24.5% | 43.9% | 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 Iran?
- Belgium, at -32.0% against -36.6% in Iran as of 2025.
- What is the difference in annual percentage change in primary energy from hydropower between Belgium and Iran?
- 4.6%, with Belgium ahead.
- How many years of comparable data are there for Belgium and Iran?
- 59 years are reported by both, from 1966 to 2025.
- How do Belgium and Iran rank globally for annual percentage change in primary energy from hydropower?
- Belgium ranks 63rd and Iran ranks 65th 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.