Slovakia vs Slovenia: Share of primary energy from fossil fuels

Slovakia
62.0%
in 2025
Slovenia
63.2%
in 2025
Slovakia rank
70th
Slovenia rank
68th

Share of primary energy from fossil fuels over time

  • Slovakia
  • Slovenia
020406080100196519952025

How they compare

Slovenia currently reports 63.2% against 62.0% in Slovakia, a difference of 1.2%.

The two have swapped places 9 times across 36 shared years of data; in 1990 it was Slovakia ahead.

Slovakia ranks 70th and Slovenia ranks 68th of 76 countries.

Across the 4 decades both report, Slovakia averaged higher in 3 and Slovenia in 1.

Head to head by decade

Decade Slovakia Slovenia Difference Ahead
1990s 81.1% 74.4% 6.7% Slovakia
2000s 73.5% 73.5% 0.1% Slovenia
2010s 70.2% 68.9% 1.3% Slovakia
2020s 65.3% 64.1% 1.2% Slovakia

Averages of every year both report within each decade.

Frequently asked questions

Which has higher share of primary energy from fossil fuels, Slovakia or Slovenia?
Slovenia, at 63.2% against 62.0% in Slovakia as of 2025.
What is the difference in share of primary energy from fossil fuels between Slovakia and Slovenia?
1.2%, with Slovenia ahead.
How many years of comparable data are there for Slovakia and Slovenia?
36 years are reported by both, from 1990 to 2025.
How do Slovakia and Slovenia rank globally for share of primary energy from fossil fuels?
Slovakia ranks 70th and Slovenia ranks 68th of 76 countries.
Where does this data come from?
Energy Institute - Statistical Review of World Energy (2026); Smil (2017); U.S. Energy Information Administration (2026) – with major processing by Our World in Data, published as Share of primary energy from fossil fuels. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Slovakia vs Slovenia: Share of primary energy from fossil fuels. Statizoid, drawing on Energy Institute - Statistical Review of World Energy (2026); Smil (2017); U.S. Energy Information Administration (2026) – with major processing by Our World in Data. Retrieved 27 August 2026, from https://energy.statizoid.com/compare/fossil-fuels-share-energy/slovak-republic/slovenia/

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About this data

Indicator
Share of primary energy from fossil fuels
Unit
%
Source
Energy Institute - Statistical Review of World Energy (2026); Smil (2017); U.S. Energy Information Administration (2026) – with major processing by Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
78 places, 3,914 data points, 1965–2025
Last refreshed

Measured as a percentage of total energy supply.