Slovenia’s Krško nuclear power plant generated 5.547 TWh of electricity in 2025, slightly above plan, according to its annual report.
The plant recorded revenue of €240 million, an increase of €13 million year-on-year, while both availability and capacity factors remained above 91%, confirming strong operational performance throughout the year.
A scheduled refueling and maintenance outage was completed in the autumn, enabling the unit to enter a new 18-month operating cycle. Since no major outage is planned for 2026, plant management expects higher output this year and is targeting more than 6 TWh of generation, assuming stable operations and no unplanned disruptions.
However, the company noted that summer restrictions related to Sava River water temperature remain a potential operational constraint, as they can limit cooling capacity during high-temperature periods. In addition, rising costs for nuclear equipment, materials, and services continue to pressure operating expenses across the sector.
The Krško nuclear plant is also preparing a feasibility study on extending its operating lifetime from 60 to 80 years, with completion expected later this year, marking a key step in assessing long-term nuclear generation strategy in Slovenia.
