South Korea vs Vietnam: Primary energy use by source
South Korea
793.18 terawatt-hours
in 2025
Vietnam
713.72 terawatt-hours
in 2025
South Korea rank
8th
Vietnam rank
9th
Primary energy use by source over time
- South Korea
- Vietnam
How they compare
South Korea currently reports 793.18 terawatt-hours against 713.72 terawatt-hours in Vietnam, a difference of 79.46 terawatt-hours.
That makes South Korea's figure about 1.1 times Vietnam's.
Across all 61 years both countries report, South Korea has been ahead every year.
South Korea ranks 8th and Vietnam ranks 9th of 78 countries.
South Korea has averaged higher in every one of the 7 decades both report.
Head to head by decade
| Decade | South Korea | Vietnam | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 61.02 terawatt-hours | 12.19 terawatt-hours | 48.82 terawatt-hours | South Korea |
| 1970s | 93.78 terawatt-hours | 23.43 terawatt-hours | 70.35 terawatt-hours | South Korea |
| 1980s | 231.32 terawatt-hours | 33.03 terawatt-hours | 198.29 terawatt-hours | South Korea |
| 1990s | 359.62 terawatt-hours | 35.17 terawatt-hours | 324.45 terawatt-hours | South Korea |
| 2000s | 654.14 terawatt-hours | 88.15 terawatt-hours | 565.99 terawatt-hours | South Korea |
| 2010s | 987.65 terawatt-hours | 298.52 terawatt-hours | 689.14 terawatt-hours | South Korea |
| 2020s | 849.39 terawatt-hours | 627.52 terawatt-hours | 221.87 terawatt-hours | South Korea |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher primary energy use by source, South Korea or Vietnam?
- South Korea, at 793.18 terawatt-hours against 713.72 terawatt-hours in Vietnam as of 2025.
- What is the difference in primary energy use by source between South Korea and Vietnam?
- 79.46 terawatt-hours, with South Korea ahead.
- How many years of comparable data are there for South Korea and Vietnam?
- 61 years are reported by both, from 1965 to 2025.
- How do South Korea and Vietnam rank globally for primary energy use by source?
- South Korea ranks 8th and Vietnam ranks 9th of 78 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.