A significant part of the cost issues come with how the market is structured. If consumers can buy power on a hourly basis, nuclear plants can not be more expen

A significant part of the cost issues come with how the market is structured. If consumers can buy power on a hourly basis, nuclear plants can not be more expensive than gas/coal (and even with some carbon tax, this is not going to be sky high prices), and can not make a profit during abundant renewable availability, because renewables drive prices close to zero. If you structured markets by selling kW rather than kWh, renewables would have to bear the cost of low wind/sun availability, either by building storage or by pairing with fossil power producers. This would price the stability of production, which is simply not priced today.