The micro-location of the leak is determined, followed by analysis and the preparation of an action plan to eliminate the deviation

Setting parameters for the so-called cold shutdown of the Krško Nuclear Power Plant during the weekend allowed the teams of the plant (NEK) to determine the micro-location of the leak, which is on the connection system of the primary circuit. A cause analysis and the preparation of an action plan to eliminate the deviation will follow. All this will require more time, probably several weeks; however, it is currently too early to assess the forecast for the power plant's return to operation. NEK is constantly in contact with domestic and international institutions and companies to ensure support for the plant's reconnection to the grid as soon as possible.

A cold shutdown of the power plant means that in addition to the power plant not producing electrical energy, the temperature and pressure in the primary circuit are significantly reduced, providing conditions for safe work. Nuclear safety has been guaranteed from the first indication of a leak. All decisions are and will be based on the principle of conservatism and a high safety culture which ensures the safety of employees, residents, and the environment.

As we reported on Thursday, the operations crew detected a leak in the primary circuit inside the containment, which was otherwise below the value set as the limit by the Technical Specifications. In the evening, the crew started a controlled gradual reduction of power and on Friday morning the power plant was disconnected from the grid and in the so-called hot standby. After the inspection, it was found that for accurate locating of the leak, considering the provision of safe working conditions, further cooling of the power plant is necessary up to the so-called cold shutdown. The cold shutdown was established over the weekend.

We will continue to report on all further steps on the website www.nek.si.