Generation mix and year-on-year changes
Slovenia’s net electricity production declined by 9% year on year in July 2026, with lower hydropower and thermal output offset by further growth in wind and solar. Total net production reached 996 GWh, which was also 13% below June levels, according to figures cited from the Statistical Office of the Republic of Slovenia. SEE-
Thermal power generation fell 41% year on year to 47 GWh. Hydropower output declined 35% to 212 GWh. Output from the Krško nuclear power plant decreased by 2%, reaching 497 GWh.
Wind and solar generation moved in the opposite direction, with combined output rising 30% year on year to 240 GWh. The changes left the overall production balance lower than a year earlier. SEE-
Cross-border flows and electricity demand
The weaker domestic generation balance showed up in cross-border electricity flows. Slovenia imported 1.035 TWh, around 1% more than in July 2025, while exports fell 15% to 897 GWh. SEE-
Electricity consumption rose across end-use categories compared with June. Household demand reached 234 GWh, up 1%, while commercial consumers used 618 GWh, a monthly increase of 4%. SEE-
Fuel supply trends alongside power output shifts
The broader energy-supply data also weakened versus June. Heating-oil supply fell 40%, LPG dropped 16%, hard coal decreased 2%, and natural-gas supply declined 2%. SEE-
On an annual basis, heating-oil supply was down 53%, LPG fell by 34%, hard coal decreased by 19%, kerosene dropped 16%, and natural gas declined by 8%. SEE-
The July figures also point to continued sensitivity to hydrological conditions. Higher renewable output from wind and solar helped offset part of the decline in conventional generation, while reduced hydro production and lower thermal availability contributed to greater reliance on imported electricity. SEE-
