The cost optimal path (as CO2 taxes or the equivalent are imposed) will be to displace more and more fossil fuel generation with renewables, then short term sto

The cost optimal path (as CO2 taxes or the equivalent are imposed) will be to displace more and more fossil fuel generation with renewables, then short term storage, then (finally) some combination of very long term storage, transmission, and demand dispatch. At no point will adding more nuclear make sense. That fossil fuels are being used now is just a stage in the migration to 0% fossil fuel, assuming the world actually decides to do that (as it damn well better).