Cost of reprocessing and not reprocessing
According to a 1999 OECD study, the costs of fuel reprocessing and direct disposal are comparable. The extra cost of reprocessing is partly absorbed by the savings made by recycling plutonium to make MOX fuel. This comparison does not take into account final disposal in the future, nor does it make any allowance for the unknown cost of environmental protection achieved through waste vitrification.
IN2P3 (Source OPECST Report)