STATUS OF DECOMMISSIONING OF OHI NUCLEAR POWER PLANT UNITS 1 AND 2

Abstract

The decommissioning process for Ohi Power Station Units 1 and 2 will take approximately 30 years, and will be divided into four phases, and according to our plan we will proceed decommissioning process step by step. This paper describes the specific construction status of the first stage. In the first stage, as preparatory work for future dismantlement, systems such as the reactor vessel and steam generator will be decontaminated, and radioactivity remaining inside the facility will be investigated. In addition, the secondary system equipment will be dismantled. Regarding the construction from the second stage onwards, we plan to apply for approval for changes to the decommissioning plan based on the results of the radioactivity survey in the facility that will be carried out in the first stage.