Net electricity generation in Slovenia declined by 9% in May 2026 compared with the same month a year earlier, according to data from the Statistical Office of the Republic of Slovenia. Total net production reached 1,135 GWh. Output was also 6% higher than in April 2026, indicating a monthly rebound.
Generation mix shifts across thermal, hydro, nuclear and renewables
Production trends varied by technology in May 2026. Electricity generated in thermal power plants rose by 2% year-on-year to 73 GWh. Hydropower output fell by 35% to 321 GWh.
Nuclear generation from the Krško plant remained stable at 517 GWh. Wind and solar electricity increased by 34%, reaching 224 GWh. Overall, the technology mix showed contrasting movements between hydro and other sources.
Electricity trade shows higher imports and lower exports
Slovenia imported 869 GWh of electricity in May 2026, which was 9% higher than in May 2025. Exports fell by 9% to 907 GWh. The figures indicate a change in cross-border flows alongside stable nuclear output.
The trade balance reflected these shifts during the month, with imports rising while exports decreased year-on-year. This occurred while domestic generation continued to show mixed performance across technologies.
Consumption and commodity supply decline across most energy products
Electricity consumption also moved in different directions across customer segments. Household demand dropped by 5% month-on-month to 241 GWh. Commercial consumption increased by 4%, reaching 569 GWh.
Supply of energy commodities declined across most categories. Kerosene fell by 22%, natural gas dropped by 18%, and hard coal decreased by 12%, while only coke supply rose by 9%. Compared with May 2025, kerosene, coal, petroleum products, gas and petrol all recorded lower supply levels.
