Slovenia’s electricity generation mix is roughly divided into thirds between nuclear, hydroelectric, and fossil fuels (mainly coal), with a growing, though still minor, share of solar. As of 2025, over 80% of electricity is low-carbon, with nuclear power (approx. 40%) and hydro (approx. 30%) as the primary sources. The country relies on significant energy imports for petroleum.

Slovenia aims to install at least 100 MW of green hydrogen electrolyzer capacity by 2030, investing EUR 223 million in hydrogen infrastructure. The strategy focuses on decarbonizing industrial production (30% goal) and transportation, supported by new pilot projects like the GREENFLOW initiative using Mura River hydro energy.