Romania vs Slovenia: Renewable energy
Romania
1.68 terawatt-hours
in 2025
Slovenia
1.02 terawatt-hours
in 2025
Romania rank
52nd
Slovenia rank
55th
Renewable energy over time
- Romania
- Slovenia
How they compare
Romania currently reports 1.68 terawatt-hours against 1.02 terawatt-hours in Slovenia, a difference of 0.66 terawatt-hours.
That makes Romania's figure about 1.6 times Slovenia's.
The two have swapped places 6 times across 36 shared years of data; in 1990 it was Romania ahead.
Romania ranks 52nd and Slovenia ranks 55th of 79 countries.
Across the 4 decades both report, Romania averaged higher in 2 and Slovenia in 2.
Head to head by decade
| Decade | Romania | Slovenia | Difference | Ahead |
|---|---|---|---|---|
| 1990s | 0.0086 terawatt-hours | 0.0094 terawatt-hours | 0.0008 terawatt-hours | Slovenia |
| 2000s | 0.027 terawatt-hours | 0.3891 terawatt-hours | 0.3621 terawatt-hours | Slovenia |
| 2010s | 1.15 terawatt-hours | 0.7978 terawatt-hours | 0.3535 terawatt-hours | Romania |
| 2020s | 1.68 terawatt-hours | 0.8725 terawatt-hours | 0.8055 terawatt-hours | Romania |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher renewable energy, Romania or Slovenia?
- Romania, at 1.68 terawatt-hours against 1.02 terawatt-hours in Slovenia as of 2025.
- What is the difference in renewable energy between Romania and Slovenia?
- 0.66 terawatt-hours, with Romania ahead.
- How many years of comparable data are there for Romania and Slovenia?
- 36 years are reported by both, from 1990 to 2025.
- How do Romania and Slovenia rank globally for renewable energy?
- Romania ranks 52nd and Slovenia ranks 55th 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 Renewable energy. 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.