The levelised cost doesn’t take into account the need to offset intermittence, which is the big fucking problem that the entire population of Germany seems to be ignoring.
Ah yes you don’t have the exact same problem with nuclear because energy usage never fluctuates. But even if it would takes 10 times more money to store solar energy it still would be cheaper than nuclear.
Rare earths for batteries are a bottleneck, especially if you want to electrify transport too.