Share of primary energy from fossil fuels in Slovenia

Slovenia: Share of primary energy from fossil fuels was 63.2% in 2025. β–Ό Falling

Latest (2025)
63.2%
Change on year
up 0.0%
World rank
67th
of 75 countries
All-time high
76.1%
in 1996
All-time low
62.8%
in 2023
Years of data
36
1990–2025

Share of primary energy from fossil fuels in Slovenia, 1990–2025

0204060801990200720251990: 73.8 %1991: 70.8 %1992: 73.9 %1993: 75.7 %1994: 73.4 %1995: 74.5 %1996: 76.1 %1997: 75.8 %1998: 74.9 %1999: 75.3 %2000: 74.4 %2001: 73.7 %2002: 73.4 %2003: 74.8 %2004: 73.4 %2005: 73.1 %2006: 74.3 %2007: 74.1 %2008: 72.6 %2009: 71.2 %2010: 71.6 %2011: 70.5 %2012: 71.1 %2013: 70 %2014: 64 %2015: 68.2 %2016: 68.9 %2017: 68.2 %2018: 68.8 %2019: 67.8 %2020: 63.2 %2021: 65.6 %2022: 66.6 %2023: 62.8 %2024: 63.2 %2025: 63.2 %

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. Measured in %.

Analysis

In 2025, share of primary energy from fossil fuels in Slovenia stood at 63.2%.

That represents a change of down 7.3% over ten years.

Over the whole period, share of primary energy from fossil fuels in Slovenia peaked at 76.1% in 1996 and was at its lowest, 62.8%, in 2023.

Slovenia ranks 67th of 75 countries on this measure, in the bottom quarter.

The long-run direction has been consistently falling across the 36 years of available data.

Averages by decade

DecadeAverage LowestHighest Years
1990s 74.4% 70.8% 76.1% 10
2000s 73.5% 71.2% 74.8% 10
2010s 68.9% 64.0% 71.6% 10
2020s 64.1% 62.8% 66.6% 6

Countries ranked near Slovenia

  1. 64 Czechia 70.2% compare
  2. 65 Bulgaria 66.5% compare
  3. 66 Denmark 66.1% compare
  4. 68 Brazil 62.3% compare
  5. 69 Slovakia 62.0% compare
  6. 70 Switzerland 56.6% compare

See the full ranking of 78 places β†’

More energy & mining data for Slovenia

All data for Slovenia β†’

Frequently asked questions

What is share of primary energy from fossil fuels in Slovenia?
Share of primary energy from fossil fuels in Slovenia was 63.2% in 2025, according to Energy Institute - Statistical Review of World Energy (2026); Smil (2017); U.S. Energy Information Administration (2026) – with major processing by Our World in Data.
What is the highest share of primary energy from fossil fuels recorded in Slovenia?
The highest recorded value was 76.1% in 1996.
What is the lowest share of primary energy from fossil fuels recorded in Slovenia?
The lowest recorded value was 62.8% in 2023.
How does Slovenia rank for share of primary energy from fossil fuels?
Slovenia ranks 67th out of 75 countries with data for 2025.
Is share of primary energy from fossil fuels rising or falling in Slovenia?
Over the last ten years it is down 7.3%. The long-run trend across the full record is falling.
Where does this Slovenia data come from?
The figures 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 part of Share of primary energy from fossil fuels. Statizoid updates them automatically from the source API.

Download this data

CSV Β· JSON β€” 36 observations, free to reuse under CC BY 4.0 (Our World in Data).

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.