Third Revision of the Krsko NPP Radioactive Waste and Spent Fuel Disposal Program

Preparation of joint Krsko Nuclear Power Plant (NPP) Radioactive Waste and Spent Nuclear Fuel Disposal Program (Disposal Program) and joint Krsko NPP Decommissioning Program and regular revisions of both programs is stipulated in the Agreement between the Government of the Republic of Croatia and the Government of the Republic of Slovenia on the Regulation of the Status and Other Legal Relations Regarding the Investment, Exploitation and Decommissioning of the Krsko NPP (Bilateral Agreement). Intergovernmental Commission (IC) monitors implementation of the Bilateral Agreement, and is responsible for starting, supervising and final acceptance of programs and its revisions. Third revision of Disposal Program was prepared in accordance with IC approved Terms of Reference (ToR) by expert organizations: Fund for financing the decommissioning of the Krsko NPP in Croatia and ARAO in Slovenia in cooperation with Krsko NPP. Basis for the Third revision were new operational and decommissioning inventory assessments, and new circumstances that developed since the last revision (updated preliminary decommissioning plan, new national strategies and programs, extension of Krsko NPP's lifetime, on-site SF dry storage, project development and knowledge in the area of RW and SF management and disposal, possible division of RW and other). Main objective was to construct technologically feasible disposal scenarios and to assess nominal and discounted costs of RW and SF management and disposal. Main boundary conditions for Third revision of Disposal Program were: - joint strategy for SF management including dry storage on site and joint deep geological repository or participation in the multinational disposal solution and - separate solutions for management and disposal of low and intermediate radioactive waste (LILW) according to the national strategies and programs. IC nominated project Implementation Coordination Committee (ICC) for support of Third revision project and preparation of proposals for possible joint radioactive waste disposal. In the article newly assessed inventory will be presented together with developed Krsko NPP decommissioning and RW and SF management scenarios, proposal for RW division, estimated nominal and discounted costs for decommissioning, investment and operational costs of the storage and disposal facilities with contingencies and compensations, conclusions and recommendations of the Third revision and preliminary plan to prepare next, 4 th revision of the Disposal Program.