Spent fuel management strategy for future nuclear power plant operation in Indonesia

Based on the results of the feasibility studies, it is planned that the NPP candidate sites will accommodate a total power generation of about 7,000 MW(e). Indonesia chooses an open fuel cycle strategy until a couple of decades after the first NPP operation and each NPP has to be capable of providing a 3-5 year spent fuel storage pool. It is further planned that the spent fuel will be stored for another 40-50 years in a centralized storage at the NPP site. Thereafter, spent fuel will eventually be stored in a long term storage. For achieving 7,000 MW(e), there are three scenarios among many combinations of 600 MW(e) and 900 MW(e) class NPPs: the combination 600 MW(e) x 2 Units x 6 Stages for case 1; 600 MW(e) x 2 Units x 3 Stages and 900 MW(e) x 2 Units x 2 Stages for case 2, and 900 MW(e) x 2 Units x 4 Stages for case 3. The construction is assumed to proceed with twin units with an interval time of one year. By assuming that the LWR is the preferred reactor type and the quantities of spent fuel for averaged one year operation are 13 tU for 600 MW(e) and 20 tU for 900 MW(e), the capacity of a 5-years reactor pond and a 50-years centralized storage facility can be estimated. Case 1, the capacity for the pond per reactor per stage is 45 tU and for the centralized storage facility 4,320 tU. Case 2, the pond capacity per reactor for the stages of 1, 2, and 3 is 45 tU and for the stages 4 and 5 it will be 100 tU, whilst the centralized storage capacity is 3,825 tU. Case 3, the pond capacity per reactor per stage is 100 tU and the centralized storage capacity is 7 200 tU. The spent fuel management strategy for future NPP operation in Indonesia is described. (author)