Analyze Slovenia's power mix to understand the roles of nuclear energy, renewables and fossil fuels in national generation.
The largest source of electricity generation in Slovenia was nuclear power, accounting for 35.9% of total output in 2021. The electricity mix also included hydropower at 31.5% and coal at 24.2%. Low-carbon sources represented 72.0% of generation, while fossil fuels accounted for 27.9%.
Over the latest five-year period, hydropower recorded the largest increase in the generation mix, rising by 2.5 percentage points. Coal recorded the largest decline, falling by 6.1 percentage points.
Slovenia Electricity Generation Mix by Year
Data source: World Bank, World Development Indicators — Electricity production from coal sources, % of total (EG.ELC.COAL.ZS); Electricity production from natural gas sources, % of total (EG.ELC.NGAS.ZS); Electricity production from oil sources, % of total (EG.ELC.PETR.ZS); Electricity production from nuclear sources, % of total (EG.ELC.NUCL.ZS); Electricity production from hydroelectric sources, % of total (EG.ELC.HYRO.ZS); Electricity production from renewable sources, excluding hydroelectric, % of total (EG.ELC.RNWX.ZS); Electricity production from oil, gas and coal sources, % of total (EG.ELC.FOSL.ZS); Renewable electricity output, % of total electricity output (EG.ELC.RNEW.ZS).
License: CC BY-4.0. Retrieved 2026-07-12.
About the Indicators
Electricity production from coal sources. The share of total electricity generation produced by burning coal.
Electricity production from natural gas sources. The share of total electricity generation produced by burning natural gas.
Electricity production from oil sources. The share of total electricity generation produced by burning oil and petroleum products.
Electricity production from nuclear sources. The share of total electricity generation produced by nuclear power plants.
Electricity production from hydroelectric sources. The share of total electricity generation produced by hydropower plants.
Electricity production from renewable sources, excluding hydroelectric. The share of total electricity generated from non-hydro renewables: wind, solar, geothermal and biomass.
Electricity production from oil, gas and coal sources. The combined share of total electricity generation produced from fossil fuels: oil, natural gas and coal.
Renewable electricity output, % of total electricity output. The share of a country’s electricity generated from renewable sources, including hydropower, solar, wind, geothermal and biomass.