Portugal vs Slovenia: Year-to-year change in primary energy from fossil fuels vs.
Portugal
-0.5683 terawatt-hours
in 2025
Slovenia
-0.7674 terawatt-hours
in 2025
Portugal rank
62nd
Slovenia rank
64th
Year-to-year change in primary energy from fossil fuels vs. over time
- Portugal
- Slovenia
How they compare
Portugal currently reports -0.5683 terawatt-hours against -0.7674 terawatt-hours in Slovenia, a difference of 0.1991 terawatt-hours.
The two have swapped places 21 times across 35 shared years of data; in 1991 it was Slovenia ahead.
Portugal ranks 62nd and Slovenia ranks 64th of 80 countries.
Across the 4 decades both report, Portugal averaged higher in 3 and Slovenia in 1.
Head to head by decade
| Decade | Portugal | Slovenia | Difference | Ahead |
|---|---|---|---|---|
| 1990s | 0.0482 terawatt-hours | 0.1204 terawatt-hours | 0.0722 terawatt-hours | Slovenia |
| 2000s | 1.51 terawatt-hours | 0.4983 terawatt-hours | 1.01 terawatt-hours | Portugal |
| 2010s | 1.25 terawatt-hours | 0.1258 terawatt-hours | 1.13 terawatt-hours | Portugal |
| 2020s | 2.38 terawatt-hours | 0.1755 terawatt-hours | 2.2 terawatt-hours | Portugal |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher year-to-year change in primary energy from fossil fuels vs. low-carbon energy, Portugal or Slovenia?
- Portugal, at -0.5683 terawatt-hours against -0.7674 terawatt-hours in Slovenia as of 2025.
- What is the difference in year-to-year change in primary energy from fossil fuels vs. low-carbon energy between Portugal and Slovenia?
- 0.1991 terawatt-hours, with Portugal ahead.
- How many years of comparable data are there for Portugal and Slovenia?
- 35 years are reported by both, from 1991 to 2025.
- How do Portugal and Slovenia rank globally for year-to-year change in primary energy from fossil fuels vs. low-carbon energy?
- Portugal ranks 62nd and Slovenia ranks 64th of 80 countries.
- Where does this data come from?
- Energy Institute – Statistical Review of World Energy (2026) – with major processing by Our World in Data, published as Year-to-year change in primary energy from fossil fuels vs. low-carbon energy. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Change in total energy supply relative to the previous year, measured in terawatt-hours.