Japan vs Vietnam: Electricity generation from hydropower
Japan
73.9 terawatt-hours
in 2025
Vietnam
102.35 terawatt-hours
in 2025
Japan rank
9th
Vietnam rank
8th
Electricity generation from hydropower over time
- Japan
- Vietnam
How they compare
Vietnam currently reports 102.35 terawatt-hours against 73.9 terawatt-hours in Japan, a difference of 28.45 terawatt-hours.
That makes Vietnam's figure about 1.4 times Japan's.
The two have swapped places 3 times across 61 shared years of data; in 1965 it was Japan ahead.
Japan ranks 9th and Vietnam ranks 8th of 214 countries.
Across the 7 decades both report, Japan averaged higher in 6 and Vietnam in 1.
Head to head by decade
| Decade | Japan | Vietnam | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 74.55 terawatt-hours | 0.436 terawatt-hours | 74.12 terawatt-hours | Japan |
| 1970s | 78.49 terawatt-hours | 0.5933 terawatt-hours | 77.9 terawatt-hours | Japan |
| 1980s | 83.39 terawatt-hours | 1.73 terawatt-hours | 81.66 terawatt-hours | Japan |
| 1990s | 83.37 terawatt-hours | 9.52 terawatt-hours | 73.84 terawatt-hours | Japan |
| 2000s | 81.73 terawatt-hours | 20.24 terawatt-hours | 61.48 terawatt-hours | Japan |
| 2010s | 80.85 terawatt-hours | 59.81 terawatt-hours | 21.04 terawatt-hours | Japan |
| 2020s | 76.79 terawatt-hours | 86.52 terawatt-hours | 9.74 terawatt-hours | Vietnam |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher electricity generation from hydropower, Japan or Vietnam?
- Vietnam, at 102.35 terawatt-hours against 73.9 terawatt-hours in Japan as of 2025.
- What is the difference in electricity generation from hydropower between Japan and Vietnam?
- 28.45 terawatt-hours, with Vietnam ahead.
- How many years of comparable data are there for Japan and Vietnam?
- 61 years are reported by both, from 1965 to 2025.
- How do Japan and Vietnam rank globally for electricity generation from hydropower?
- Japan ranks 9th and Vietnam ranks 8th of 214 countries.
- Where does this data come from?
- Ember (2026) and other sources – with major processing by Our World in Data, published as Electricity generation from hydropower. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Measured in terawatt-hours.