Also there’s a specific type of reactor that is optimal because it allows for more easily recycling the spent fuel to use it again, and unfortunately these have not been built as much as the other type of reactor.
It’s because fuel is such an insignificant percentage of the overall cost of building, operating, and maintaining nuclear power. Increasing the complexity of the reactor in order to make the fuel use more efficient is basically a nonstarter, economically.
Also there’s a specific type of reactor that is optimal because it allows for more easily recycling the spent fuel to use it again, and unfortunately these have not been built as much as the other type of reactor.
It’s because fuel is such an insignificant percentage of the overall cost of building, operating, and maintaining nuclear power. Increasing the complexity of the reactor in order to make the fuel use more efficient is basically a nonstarter, economically.