Consideration of spent fuel pool island as an interim management option of spent nuclear fuel for Kori unit 3 & 4 during decommissioning of Kori site

A cost assessment was performed to evaluate the cost effectiveness of an SFPI as an interim storage measure as compared to concrete cask, metal cask, and dual purpose transportation and storage cask (DPC) systems. Based on the decommissioning plan assumptions and economic parameters, the net present value (NPV) for these options was calculated and used as the basis for cost effectiveness comparisons. The total estimated cost of an SFPI is approximately $120 Million (M), which is significantly lower than that of a concrete cask system ($203 M), a metal cask system ($659 M) and DPC system ($874 M).