Portugal vs Vietnam: Primary energy use by source
Portugal
13.8 terawatt-hours
in 2025
Vietnam
14.65 terawatt-hours
in 2025
Portugal rank
22nd
Vietnam rank
20th
Primary energy use by source over time
- Portugal
- Vietnam
How they compare
Vietnam currently reports 14.65 terawatt-hours against 13.8 terawatt-hours in Portugal, a difference of 0.85 terawatt-hours.
That makes Vietnam's figure about 1.1 times Portugal's.
The two have swapped places 2 times across 61 shared years of data; in 1965 it was Vietnam ahead.
Portugal ranks 22nd and Vietnam ranks 20th of 79 countries.
Portugal has averaged higher in every one of the 7 decades both report.
Head to head by decade
| Decade | Portugal | Vietnam | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 0 terawatt-hours | 0 terawatt-hours | 0 terawatt-hours | — |
| 1970s | 0 terawatt-hours | 0 terawatt-hours | 0 terawatt-hours | — |
| 1980s | 0.0001 terawatt-hours | 0 terawatt-hours | 0.0001 terawatt-hours | Portugal |
| 1990s | 0.032 terawatt-hours | 0 terawatt-hours | 0.032 terawatt-hours | Portugal |
| 2000s | 2.42 terawatt-hours | 0.0013 terawatt-hours | 2.42 terawatt-hours | Portugal |
| 2010s | 11.53 terawatt-hours | 0.2143 terawatt-hours | 11.32 terawatt-hours | Portugal |
| 2020s | 13.35 terawatt-hours | 8.73 terawatt-hours | 4.62 terawatt-hours | Portugal |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher primary energy use by source, Portugal or Vietnam?
- Vietnam, at 14.65 terawatt-hours against 13.8 terawatt-hours in Portugal as of 2025.
- What is the difference in primary energy use by source between Portugal and Vietnam?
- 0.85 terawatt-hours, with Vietnam ahead.
- How many years of comparable data are there for Portugal and Vietnam?
- 61 years are reported by both, from 1965 to 2025.
- How do Portugal and Vietnam rank globally for primary energy use by source?
- Portugal ranks 22nd and Vietnam ranks 20th of 79 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 Primary energy use by source. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Measured in terawatt-hours of total energy supply.