Nuclear is so expensive the only reason anyone builds them is governments wants a source of nuclear trained people around for military purposes (either bombs or navy ships).

Battery backup isn't a needed as much as many thing in the real world. Those gas power plants we already have are not going anywhere, so we still use them when there isn't much wind. Though battery is something we should be building instead (and are).

Wait, what? There are also a number of countries that operate nuclear plants purely for civilian electricity production. Military applications are not the primary motivator.

Instead, civilian energy demands and energy independence are the motivating factors. Look at how Ontario leveraged its electricity supply in the early days of the trade war.

Nonsense, by that logic Lithuania should have been a #2 military power long time ago (having built nukes from a civil nuclear reactor) (it used to operate #2 largest nuclear reactor in the world, now it would be #4).

In most of Europe, nuclear is cheaper than anything else but coal, natgas, and classic hydro.

When you also add the cost of battery backup.

Spain and Portugal have just experienced the first taste of that fact.