stručni rad
Croatian plans for management of low and intermediate level waste (LILW) from Krško, presented in the recently prepared 3rd Revision of the Krško NPP Radioactive Waste and Spent Fuel Disposal Program, are based on the Croatian National Program for the Implementation of the Radioactive Waste Management (RWM) Strategy adopted in 2018. Two RWM facilities are planed:
1. A storage facility to be established by 2023, which will operate for about 40 years
2. A disposal facility which will start operation in 2051
The authors argue that better and more flexible solution would be:
1. To extend the storage facility operation to about 100 years
2. The repository establishment should be postponed accordingly
In present circumstances, when the storage facility may be needed in a couple of years from now, it is too late to call for major changes of the Croatian RWM program. Therefore, in this paper we discuss extended storage as a “soft” modification of the RWM program, which would not have to interfere with many already planned aspects of LILW management (store location, waste packaging etc.). The only requirement on the program is to allow for the possibility of building additional storage space adjacent to the planned store, sometime around 2050, in order to postpone repository establishment. Regarding financial aspects, it is first noted that the nominal costs for the prolonged
storage scenario would be increased (extended operation, more compensations to the local community, bigger storage facility). But discounted expenses would not increase appreciably, or may even decrease, at the discount rate of 3% that is suggested in the 3rd Revision as the internal rate of return (IRR) suitable for the Croatian program financing arrangements.
If the option of extended storage, proposed by the authors, is recognized in the Croatian RWM program, it would enhance flexibility and the robustness of the program. The paper
discusses positive impacts on the feasibility of timely repository establishment, on the issue of 2005.1 2005.2 public acceptance in the local community and other potential interactions with RWM program execution.
In order to provide for additional flexibility, different time intervals of extended storage are analysed.
radioactive waste: long term storage
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