Research Article
Cost Estimation and Efficiency Analysis of Korean CANDU Spent Fuel Disposal Alternatives in Consideration of Future Price Volatility
Table 6
The results of price forecasting at confidence interval 68%—year 2020.
| | | CI (confidence interval) 68% | Fluctuation band (%) | | UCL | Forecasting | LCL |
| | Tunnel excavation USD/m3 | 69.62 | 63.32 | 57.02 | 9.9 |
| | Disposal hole USD/m3 | 1,718.77 | 1,563.28 | 1,407.79 | 9.9 |
| | Bentonite USD/ton | 625.80 | 544.91 | 464.02 | 14.8 |
| Canister
USD/kg | Cast iron | 3.03 | 2.55 | 2.06 | 18.8 | | Copper plate | 8.86 | 6.84 | 4.81 | 29.5 | | Copper powder | 51.56 | 41.16 | 30.76 | 25.3 |
| | Backfilling USD/kg | 214.56 | 186.83 | 159.09 | 14.8 |
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