Denmark vs Iceland: Primary energy use by source
Denmark
2.17 terawatt-hours
in 2025
Iceland
0.9184 terawatt-hours
in 2025
Denmark rank
64th
Iceland rank
67th
Primary energy use by source over time
- Denmark
- Iceland
How they compare
Denmark currently reports 2.17 terawatt-hours against 0.9184 terawatt-hours in Iceland, a difference of 1.25 terawatt-hours.
That makes Denmark's figure about 2.4 times Iceland's.
Across all 61 years both countries report, Denmark has been ahead every year.
Denmark ranks 64th and Iceland ranks 67th of 79 countries.
Denmark has averaged higher in every one of the 7 decades both report.
Head to head by decade
| Decade | Denmark | Iceland | Difference | Ahead |
|---|---|---|---|---|
| 1960s | 41.01 terawatt-hours | 0.0466 terawatt-hours | 40.96 terawatt-hours | Denmark |
| 1970s | 29.93 terawatt-hours | 0.0237 terawatt-hours | 29.9 terawatt-hours | Denmark |
| 1980s | 73 terawatt-hours | 0.6377 terawatt-hours | 72.36 terawatt-hours | Denmark |
| 1990s | 79.8 terawatt-hours | 0.711 terawatt-hours | 79.09 terawatt-hours | Denmark |
| 2000s | 51.82 terawatt-hours | 1.16 terawatt-hours | 50.65 terawatt-hours | Denmark |
| 2010s | 27.4 terawatt-hours | 1.21 terawatt-hours | 26.2 terawatt-hours | Denmark |
| 2020s | 8.19 terawatt-hours | 1.13 terawatt-hours | 7.05 terawatt-hours | Denmark |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher primary energy use by source, Denmark or Iceland?
- Denmark, at 2.17 terawatt-hours against 0.9184 terawatt-hours in Iceland as of 2025.
- What is the difference in primary energy use by source between Denmark and Iceland?
- 1.25 terawatt-hours, with Denmark ahead.
- How many years of comparable data are there for Denmark and Iceland?
- 61 years are reported by both, from 1965 to 2025.
- How do Denmark and Iceland rank globally for primary energy use by source?
- Denmark ranks 64th and Iceland ranks 67th of 79 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.