In a recent study, researchers from the European Environmental Bureau (EEB), the Stockholm School of Economics (SSE), and the Potsdam Institute for Climate Impact Research (PIK) questioned the planned development of new nuclear capacities in the energy strategies of the United States and certain European countries.
No, nuclear is always more expensive in real world conditions. Places with mostly renewables plus in-fill from batteries and transient gas generation are a lot cheaper than nuclear. eg. South Australia.
But transient has generation produces much more ghgs than nuclear, and when accounting for the ghg potential of metanen and normal pipeline leakage, it is even more damaging than coal.
It’s required less and less as other forms of generation are added to the mix. eg. Tidal and pumped hydro.