South Africa vs Viet Nam: Fossil fuel supply by source
South Africa
46.81 terawatt-hours
in 2025
Viet Nam
57.84 terawatt-hours
in 2025
South Africa rank
58th
Viet Nam rank
55th
Fossil fuel supply by source over time
- South Africa
- Viet Nam
How they compare
Viet Nam currently reports 57.84 terawatt-hours against 46.81 terawatt-hours in South Africa, a difference of 11.03 terawatt-hours.
That makes Viet Nam's figure about 1.2 times South Africa's.
The two have swapped places 1 time across 45 shared years of data; in 1981 it was South Africa ahead.
South Africa ranks 58th and Viet Nam ranks 55th of 77 countries.
Across the 5 decades both report, South Africa averaged higher in 2 and Viet Nam in 3.
Head to head by decade
| Decade | South Africa | Viet Nam | Difference | Ahead |
|---|---|---|---|---|
| 1980s | 2.03 terawatt-hours | 0.3453 terawatt-hours | 1.69 terawatt-hours | South Africa |
| 1990s | 13.82 terawatt-hours | 3.85 terawatt-hours | 9.97 terawatt-hours | South Africa |
| 2000s | 25.64 terawatt-hours | 46.86 terawatt-hours | 21.22 terawatt-hours | Viet Nam |
| 2010s | 41.77 terawatt-hours | 95.09 terawatt-hours | 53.33 terawatt-hours | Viet Nam |
| 2020s | 44.39 terawatt-hours | 71.59 terawatt-hours | 27.19 terawatt-hours | Viet Nam |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher fossil fuel supply by source, South Africa or Viet Nam?
- Viet Nam, at 57.84 terawatt-hours against 46.81 terawatt-hours in South Africa as of 2025.
- What is the difference in fossil fuel supply by source between South Africa and Viet Nam?
- 11.03 terawatt-hours, with Viet Nam ahead.
- How many years of comparable data are there for South Africa and Viet Nam?
- 45 years are reported by both, from 1981 to 2025.
- How do South Africa and Viet Nam rank globally for fossil fuel supply by source?
- South Africa ranks 58th and Viet Nam ranks 55th of 77 countries.
- Where does this data come from?
- Energy Institute - Statistical Review of World Energy (2026); Smil (2017) β with major processing by Our World in Data, published as Fossil fuel supply 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.