SLOVENIA

Slovenia has no coal-fired power plants under construction or in planning stages. In 2021, Slovenia joined the Powering Past Coal Alliance (PPCA) and, in January 2022, announced that the country would phase out coal by 2033. The country has 724 megawatts (MW) of operating coal power capacity at two coal plants: the large Šoštanj power station and Te-Tol power station. A 345 MW unit at the Šoštanj plant was mothballed in 2025. In September 2021, HSE – the owner of the 945 MW Šoštanj plant and the associated Velenje lignite mine – was reportedly seeking financial support from the Slovenian government. Government officials projected that the plant may actually close sooner, by 2029 or earlier, as the high price of European Union carbon allowances was causing the plant to run at a loss. As of June 2026, Te-Tol power station is anticipated to retire in 2026 when replacement gas units are commissioned.

Slovenia’s announced coal phaseout timeline is framed by the European Union’s updated Nationally Determined Contribution (“NDC 3.0”), submitted in November 2025, which introduces an indicative 2035 emissions reduction target and reaffirms the objective of climate neutrality by 2050.