Bulgaria vs Japan: Share of primary energy from hydropower
Bulgaria
1.4%
in 2025
Japan
1.6%
in 2025
Bulgaria rank
37th
Japan rank
36th
Share of primary energy from hydropower over time
- Bulgaria
- Japan
How they compare
Japan currently reports 1.6% against 1.4% in Bulgaria, a difference of 0.2%.
That makes Japan's figure about 1.1 times Bulgaria's.
The two have swapped places 10 times across 61 shared years of data; in 1965 it was Japan ahead.
Bulgaria ranks 37th and Japan ranks 36th of 79 countries.
Across the 7 decades both report, Bulgaria averaged higher in 3 and Japan in 4.
Head to head by decade
| Decade | Bulgaria | Japan | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 1.3% | 3.5% | 2.2% | Japan |
| 1970s | 1.0% | 2.0% | 1.0% | Japan |
| 1980s | 0.9% | 1.9% | 1.0% | Japan |
| 1990s | 0.9% | 1.5% | 0.6% | Japan |
| 2000s | 1.3% | 1.3% | 0.0% | Bulgaria |
| 2010s | 1.9% | 1.5% | 0.4% | Bulgaria |
| 2020s | 1.6% | 1.6% | 0.0% | Bulgaria |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher share of primary energy from hydropower, Bulgaria or Japan?
- Japan, at 1.6% against 1.4% in Bulgaria as of 2025.
- What is the difference in share of primary energy from hydropower between Bulgaria and Japan?
- 0.2%, with Japan ahead.
- How many years of comparable data are there for Bulgaria and Japan?
- 61 years are reported by both, from 1965 to 2025.
- How do Bulgaria and Japan rank globally for share of primary energy from hydropower?
- Bulgaria ranks 37th and Japan ranks 36th of 79 countries.
- Where does this data come from?
- Energy Institute - Statistical Review of World Energy (2026); Smil (2017); U.S. Energy Information Administration (2026) – with major processing by Our World in Data, published as Share of primary energy from hydropower. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Measured as a percentage of total energy supply.