Slovenia - World Nuclear Performance Report
Slovenia has a single reactor operating at Krško, about 40 km northeast of Zagreb. It is a two-loop Westinghouse PWR with a net capacity of 688 MWe. The plant’s operating company Nuklearna Elektrarna Krško (NEK) is jointly owned by Slovenian state-owned company GenEnergija and Croatian state-owned company Hrvatska Elektroprivreda (HEP).
Slovenia has plans to build a new nuclear power plant – the JEK2 project – with a capacity of up to 2400 MWe. It is to be sited near the existing plant at Krško. A nationwide referendum on nuclear energy was to take place in November 2024 but was cancelled and may now be staged later in the project process before a final investment decision is made. Westinghouse and EDF began siting and feasibility studies for the project in March 2025. KHNP had been involved in discussions in 2024 but decided not to proceed. Alongside work on the JEK2 project, GEN Energija is studying the deployment of SMRs.
Nuclear electricity production by age of reactor
