Slovakia vs Viet Nam: Primary energy use by source
Slovakia
4.23 terawatt-hours
in 2025
Viet Nam
3.59 terawatt-hours
in 2025
Slovakia rank
39th
Viet Nam rank
41st
Primary energy use by source over time
- Slovakia
- Viet Nam
How they compare
Slovakia currently reports 4.23 terawatt-hours against 3.59 terawatt-hours in Viet Nam, a difference of 0.64 terawatt-hours.
That makes Slovakia's figure about 1.2 times Viet Nam's.
The two have swapped places 3 times across 61 shared years of data; in 1965 it was Viet Nam ahead.
Slovakia ranks 39th and Viet Nam ranks 41st of 80 countries.
Slovakia has averaged higher in every one of the 7 decades both report.
Head to head by decade
| Decade | Slovakia | Viet Nam | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 0 terawatt-hours | 0 terawatt-hours | 0 terawatt-hours | — |
| 1970s | 0 terawatt-hours | 0 terawatt-hours | 0 terawatt-hours | — |
| 1980s | 0 terawatt-hours | 0 terawatt-hours | 0 terawatt-hours | — |
| 1990s | 0 terawatt-hours | 0 terawatt-hours | 0 terawatt-hours | — |
| 2000s | 0.7222 terawatt-hours | 0.0942 terawatt-hours | 0.628 terawatt-hours | Slovakia |
| 2010s | 3.99 terawatt-hours | 0.4615 terawatt-hours | 3.53 terawatt-hours | Slovakia |
| 2020s | 4.75 terawatt-hours | 2.08 terawatt-hours | 2.67 terawatt-hours | Slovakia |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher primary energy use by source, Slovakia or Viet Nam?
- Slovakia, at 4.23 terawatt-hours against 3.59 terawatt-hours in Viet Nam as of 2025.
- What is the difference in primary energy use by source between Slovakia and Viet Nam?
- 0.64 terawatt-hours, with Slovakia ahead.
- How many years of comparable data are there for Slovakia and Viet Nam?
- 61 years are reported by both, from 1965 to 2025.
- How do Slovakia and Viet Nam rank globally for primary energy use by source?
- Slovakia ranks 39th and Viet Nam ranks 41st of 80 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.