It is complicated: $6B is supposedly related to nuclear waste from the weapons program which is likely hard to compare to power production sites for a huge numb

It is complicated: $6B is supposedly related to nuclear waste from the weapons program which is likely hard to compare to power production sites for a huge number of reasons. Technically there is a $40B fund paid for from taxes on nuclear production to deal with the long term storage problem by NIMBY has prevented that from going from a concept into a reality. As with many things "we need X but not here" makes getting things done hard. So from a planning standpoint the long term problem is solved but in reality it isn't. How you boil that down into a cost I couldn't begin to solve.