Nuclear energy

A safe, low-carbon energy source


Thanks to its high nominal capacity and reliable supply of electricity countrywide, Krško Nuclear Power Plant (NEK) plays a critical role in the national electric power grid by:

  • ensuring grid stability,
  • maintaining stable voltage conditions in the transmission of electricity,
  • helping keep electricity prices stable in Slovenia, and
  • enhancing the reliability of supply and the independence from external factors.

The electricity from NEK accounts for roughly 40% of the country's total electricity production. One-half of it goes to the Republic of Croatia, the co-owner of the power plant. Nuclear energy is an essential component of the GEN Group's production portfolio, considering that most of the country's electricity is generated at Krško Nuclear Power Plant (NEK). In 2022, 84% of the GEN Group's total electricity output came from nuclear energy.


How Krško Nuclear Power Plant works

A nuclear power plant utilizes the energy released by the fission of uranium.

Inside the containment building, which houses a reactor, two steam generators, two reactor coolant pumps and a pressurizer, heat is generated in the reactor core, which in turn heats the primary coolant (water). The heat of the primary coolant is transferred through the steam generator walls to the secondary coolant inside the steam generator, turning the coolant into steam. The steam then drives the turbines. The steam turbines are connected to an electric generator, which produces electricity. The electricity is then delivered to consumers through the power grid, making our jobs easier and improving our quality of life.