Greece vs Slovenia: Primary energy use by source
Greece
8.5 terawatt-hours
in 2025
Slovenia
5.48 terawatt-hours
in 2025
Greece rank
53rd
Slovenia rank
56th
Primary energy use by source over time
- Greece
- Slovenia
How they compare
Greece currently reports 8.5 terawatt-hours against 5.48 terawatt-hours in Slovenia, a difference of 3.02 terawatt-hours.
That makes Greece's figure about 1.6 times Slovenia's.
Across all 36 years both countries report, Greece has been ahead every year.
Greece ranks 53rd and Slovenia ranks 56th of 78 countries.
Greece has averaged higher in every one of the 4 decades both report.
Head to head by decade
| Decade | Greece | Slovenia | Difference | Ahead |
|---|---|---|---|---|
| 1990s | 95.2 terawatt-hours | 16.35 terawatt-hours | 78.85 terawatt-hours | Greece |
| 2000s | 103.21 terawatt-hours | 17.36 terawatt-hours | 85.85 terawatt-hours | Greece |
| 2010s | 70.12 terawatt-hours | 14.14 terawatt-hours | 55.99 terawatt-hours | Greece |
| 2020s | 15.41 terawatt-hours | 9.02 terawatt-hours | 6.39 terawatt-hours | Greece |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher primary energy use by source, Greece or Slovenia?
- Greece, at 8.5 terawatt-hours against 5.48 terawatt-hours in Slovenia as of 2025.
- What is the difference in primary energy use by source between Greece and Slovenia?
- 3.02 terawatt-hours, with Greece ahead.
- How many years of comparable data are there for Greece and Slovenia?
- 36 years are reported by both, from 1990 to 2025.
- How do Greece and Slovenia rank globally for primary energy use by source?
- Greece ranks 53rd and Slovenia ranks 56th of 78 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.