Iceland vs Korea: Primary energy use by source
Iceland
56.33 terawatt-hours
in 2025
Korea
61.52 terawatt-hours
in 2025
Iceland rank
15th
Korea rank
14th
Primary energy use by source over time
- Iceland
- Korea
How they compare
Korea currently reports 61.52 terawatt-hours against 56.33 terawatt-hours in Iceland, a difference of 5.19 terawatt-hours.
That makes Korea's figure about 1.1 times Iceland's.
The two have swapped places 2 times across 61 shared years of data; in 1965 it was Korea ahead.
Iceland ranks 15th and Korea ranks 14th of 80 countries.
Iceland has averaged higher in every one of the 7 decades both report.
Head to head by decade
| Decade | Iceland | Korea | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 0.0038 terawatt-hours | 0 terawatt-hours | 0.0038 terawatt-hours | Iceland |
| 1970s | 0.1931 terawatt-hours | 0 terawatt-hours | 0.1931 terawatt-hours | Iceland |
| 1980s | 1.79 terawatt-hours | 0 terawatt-hours | 1.79 terawatt-hours | Iceland |
| 1990s | 4.09 terawatt-hours | 0.2655 terawatt-hours | 3.82 terawatt-hours | Iceland |
| 2000s | 23.55 terawatt-hours | 0.88 terawatt-hours | 22.67 terawatt-hours | Iceland |
| 2010s | 52.13 terawatt-hours | 19.2 terawatt-hours | 32.93 terawatt-hours | Iceland |
| 2020s | 58.84 terawatt-hours | 54.69 terawatt-hours | 4.15 terawatt-hours | Iceland |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher primary energy use by source, Iceland or Korea?
- Korea, at 61.52 terawatt-hours against 56.33 terawatt-hours in Iceland as of 2025.
- What is the difference in primary energy use by source between Iceland and Korea?
- 5.19 terawatt-hours, with Korea ahead.
- How many years of comparable data are there for Iceland and Korea?
- 61 years are reported by both, from 1965 to 2025.
- How do Iceland and Korea rank globally for primary energy use by source?
- Iceland ranks 15th and Korea ranks 14th of 80 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 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.