Because it largely is. If we have enough nuclear capacity to meet 100% of demand during the evening, then there's no reason not to keep running at 100% for the

Because it largely is. If we have enough nuclear capacity to meet 100% of demand during the evening, then there's no reason not to keep running at 100% for the whole day. This would displace wind and solar power, which is why wind and solar investors are often hostile to nuclear power.