Proposal for the spent nuclear fuel management plan from the decommissioning of Kori site NPPs

The purpose of this study is to propose a management plan of spent nuclear fuels considering not only the Kori Unit 1 but also the whole site including the Kori Unit 2, 3, 4 which will be permanently shut down in the near future. We reviewed the decommissioning cases in the United States and developed a spent fuel management plan applicable to the Kori site for decommissioning. As a possible option for each nuclear power plant, scenarios for constructing a dry storage facility or an independent spent fuel pool island were applied and schedules were established accordingly. Based on this concept, we analyzed the major cost elements required for each option and applied each cost to the scenario, which suggested the most economical scenario. In addition to the economic aspect, we have taken other factors such as the government's high-level waste management policy, site conditions, decommissioning schedule, etc. into a rational fuel management plan for the Kori site. For optimal scenarios, the amount of spent fuel generated at the Kori site was examined and presented for the capacity required for the construction of a dry independent spent fuel storage installation.