Nuclear is a terrible fit for that though, it can’t scale up and down generation quickly, which is what would be useful with renewable. Honestly we’re better off for now trying to get to 95% renewables as quickly as possible for cheap, and filling the 5% with quickly scaling gas, and solve the last few percent a little more slowly but in a way that’s economic (and therefore will realistically happen). Nuclear is just way too slow, and if you sunk the cost that it’d take to build out the nuclear we could easily have a 100% renewable grid a lot sooner than the 20+ years it’ll take with nuclear
Not mostly, mostly consumer preferences. You wouldn’t be able to sell them and it’d just be wasteful