That's the thing about capital allocation: you can reduce risk as much or more by buying batteries and more solar panels, and you can get it next week at a reliable price.

Nuclear is expensive because of risk, and a lot of that risk is just project risk. Nuclear doesn't get built on time or on budget because project management so often goes sideways. It's not the permits or the protesters.]

Nuclear is high (business) risk for two reasons.

1) Recent nuclear projects plan for years to develop (never mind the extra years over the original plan). So there's financing, and the risk that the power economy / regulatory regime when the plant opens isn't what the planners expected.

2) $100M gets a small solar plant going [1]. $50m of that could get a quarter of it going. A nuclear plant ("economy of scale") gets nothing until it's done... $50m gets you a planning document.

"Overnight cost" matters.

[1] Actually, $10k gets a small (rooftop) solar plant going. Try that with a SMR in the back yard... :-)