Ireland vs South Africa: Fossil fuel supply by source
Ireland
48.68 terawatt-hours
in 2025
South Africa
46.81 terawatt-hours
in 2025
Ireland rank
57th
South Africa rank
58th
Fossil fuel supply by source over time
- Ireland
- South Africa
How they compare
Ireland currently reports 48.68 terawatt-hours against 46.81 terawatt-hours in South Africa, a difference of 1.87 terawatt-hours.
Across all 47 years both countries report, Ireland has been ahead every year.
Ireland ranks 57th and South Africa ranks 58th of 77 countries.
Ireland has averaged higher in every one of the 6 decades both report.
Head to head by decade
| Decade | Ireland | South Africa | Difference | Ahead |
|---|---|---|---|---|
| 1970s | 2.76 terawatt-hours | 1.88 terawatt-hours | 0.8839 terawatt-hours | Ireland |
| 1980s | 16.6 terawatt-hours | 2.04 terawatt-hours | 14.56 terawatt-hours | Ireland |
| 1990s | 27.5 terawatt-hours | 13.82 terawatt-hours | 13.68 terawatt-hours | Ireland |
| 2000s | 44.77 terawatt-hours | 25.64 terawatt-hours | 19.13 terawatt-hours | Ireland |
| 2010s | 48.6 terawatt-hours | 41.77 terawatt-hours | 6.84 terawatt-hours | Ireland |
| 2020s | 50.45 terawatt-hours | 44.39 terawatt-hours | 6.06 terawatt-hours | Ireland |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher fossil fuel supply by source, Ireland or South Africa?
- Ireland, at 48.68 terawatt-hours against 46.81 terawatt-hours in South Africa as of 2025.
- What is the difference in fossil fuel supply by source between Ireland and South Africa?
- 1.87 terawatt-hours, with Ireland ahead.
- How many years of comparable data are there for Ireland and South Africa?
- 47 years are reported by both, from 1979 to 2025.
- How do Ireland and South Africa rank globally for fossil fuel supply by source?
- Ireland ranks 57th and South Africa ranks 58th 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.