Portugal vs Viet Nam: Share of primary energy from hydropower
Portugal
6.8%
in 2025
Viet Nam
7.8%
in 2025
Portugal rank
16th
Viet Nam rank
15th
Share of primary energy from hydropower over time
- Portugal
- Viet Nam
How they compare
Viet Nam currently reports 7.8% against 6.8% in Portugal, a difference of 1.0%.
That makes Viet Nam's figure about 1.1 times Portugal's.
The two have swapped places 3 times across 61 shared years of data; in 1965 it was Portugal ahead.
Portugal ranks 16th and Viet Nam ranks 15th of 80 countries.
Across the 7 decades both report, Portugal averaged higher in 3 and Viet Nam in 4.
Head to head by decade
| Decade | Portugal | Viet Nam | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 11.1% | 0.8% | 10.4% | Portugal |
| 1970s | 8.6% | 1.1% | 7.5% | Portugal |
| 1980s | 6.2% | 2.9% | 3.4% | Portugal |
| 1990s | 4.5% | 9.1% | 4.6% | Viet Nam |
| 2000s | 3.6% | 6.9% | 3.3% | Viet Nam |
| 2010s | 4.5% | 8.8% | 4.3% | Viet Nam |
| 2020s | 5.5% | 7.6% | 2.1% | Viet Nam |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher share of primary energy from hydropower, Portugal or Viet Nam?
- Viet Nam, at 7.8% against 6.8% in Portugal as of 2025.
- What is the difference in share of primary energy from hydropower between Portugal and Viet Nam?
- 1.0%, with Viet Nam ahead.
- How many years of comparable data are there for Portugal and Viet Nam?
- 61 years are reported by both, from 1965 to 2025.
- How do Portugal and Viet Nam rank globally for share of primary energy from hydropower?
- Portugal ranks 16th and Viet Nam ranks 15th of 80 countries.
- Where does this data come from?
- Energy Institute - Statistical Review of World Energy (2026); Smil (2017); U.S. Energy Information Administration (2026) β 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.