Solar is cheap, but does not produce during night and much less during winter or under cloud cover. So you have to include costs of other power sources and energy storage.

Yup you just described the UK. Likely more than $20bn though !

Nice transfer of wealth...

The current estimate for Hinkley Point C is at £48 billion.

"Why Britain is building the world’s most expensive nuclear plant"

https://spectator.com/article/why-britain-is-building-the-wo...