Nuclear provides the so called base load (the minimum level of electricity demand required). To replace base load with renewables + energy storage requires so much CAPEX and battery manufacturing that you don't have money to fill gaps between caseload needs and renewable energy production.
> has built
But enough?
Global battery manufacturers have invested so much that they can take total battery capacity to more than 5,500 GWh by by 2030. US would need something like 3000 Gwh of energy storage to replace the base load. (within days, then few weeks). It would would be insane misuse of resources.
It cannot be cancelled soon enough.
Nuclear is the most cost effective way to achieve base load.