The Nuclear Safety Administration of Slovenia published on its official website an excerpt from the annual report “Radiation and Nuclear Safety in the Republic of Slovenia in 2020”. The statement said that the National Assembly of Slovenia, on the proposal of the Government, has already discussed this document.
The report summarizes all developments related to nuclear safety and radiation in 2020.
The agency notes that 2020 was marked by the Covid-19 epidemic. The Krško Nuclear Power Plant (NE Krško) and others have adapted their work to the conditions, thus preventing the epidemic from having detrimental effects on nuclear safety and radiation. As part of its activities, the Slovenian Nuclear Safety Administration (SNSA) also monitored the impact of the Covid-19 virus on nuclear safety and radiation and adapted its work to epidemic business conditions, always performing its administrative and supervisory tasks efficiently. .
In 2020, HPP Krško operated safely. HPP Krško reported six events that did not affect the population or the environment.
HPP Krško continued its work on the third phase of safety improvements from the Safety Improvement Program (SUP), such as the construction of Building 2 with Bunkered (BB2), the installation of additional coolant injection and long-term cooling systems, and the improvement of the technical and operational center of emergency assistance. Most SUP upgrades were completed in 2021.
One of the most important activities of the recent SUP period is the construction of a dry fuel storage facility. In December 2020, the Ministry of Environment and Spatial Planning issued a construction permit for a facility for dry storage of spent fuel in the area of HPP Krško. The process of licensing dry storage under the law governing nuclear safety has also begun. This is an extensive administrative procedure, which was not completed in 2020. Preparations for the construction of a dry fuel storage facility began in March 2021, and the transfer of the first part of the spent fuel elements to the storage facility of dry is scheduled for early 2023.
In 2020, preparations for the Third Periodic Safety Review (PSR) began. HPP Krško prepared a PSR program approved by SNSA at the end of 2020. The third PSR was launched in February 2021 and will last until June 2023, when the final safety review report together with the Action Plan Improvements will be submitted to the SNSA for review and approval.
In 2020, the Interstate Commission for Monitoring the Implementation of the Interstate Agreement on Joint Ownership of HPP Krško approved a review of the programs for deactivation of HPP Krško and disposal of radioactive waste and spent fuel by NP Krško. The newly approved programs are the basis for determining the contributions that GEN Energija and Hrvatska elektroprivreda, as owners, must each pay into their own fund to finance the decommissioning and disposal of radioactive waste and spent fuel. The Government of the Republic of Slovenia has increased the amount of the contribution to the Slovenian Fund and has imposed on the company GEN energija, doo, the obligation from August 2020 onwards, to pay to the Fund 4.8 euros for each MWh of electricity received from the Krško hydropower plant.
The Radioactive Waste Agency (ARAO) continued its activities for the construction of a low and medium level radioactive waste landfill in Vrbina near Krško. There was a public presentation of the environmental impact report in Slovenia and a cross-border environmental impact assessment procedure, which had not yet been completed by the end of the year. Given the dynamics of the activities and actions of the bodies involved, the challenge that will fill the storage facilities for such waste in the POE Krško and that there will be no landfill available, remains very important. Despite the difficult situation due to the Covid-19 epidemic, ARAO made the collection, transportation and safe storage of institutional radioactive waste without any problems.
The Central Radioactive Waste Disposal Plant (CSRAO) operated without any special events.
At the Boršt hydrometallurgical landfill of the former Žirovski Vrh uranium mine, problems due to rock slides have not been resolved, so the search for solutions to close the landfill continues.
In 2020, the planned monitoring of radioactivity in the environment went smoothly. Based on the results of the measurements, it was proved that the load of the population of Slovenia due to the presence of artificial radionuclides in the environment is below all legally defined limits and is comparable to previous years. Furthermore, the operational monitoring of all facilities was carried out according to the planned annual programs, and the activities of radioactive substances released into the environment were below the authorized limit values. As a result, the burden on the population was lower than described and negligible compared to the ever-present natural background.
In 2020, there were no major problems for radiation practitioners. The SNSA dealt with a total of 13 cases of interference, of which eight cases of an overdose field in the transport of scrap metal materials through the territory of Slovenia.