> how the fuck does nuclear power make any economic sense
Because these plants run for 80+ years (some countries are now considering 100) while most renewables run for 25 at most. And also because `plus batteries` doesn't exist. The world battery capacity isn't enough to power California for a single week. Large scale battery technology isn't even in its infancy, it just doesn't exist.
Don't forget, you've paid for the nuclear power plant once. You will pay for a new set of renewable capabilities every 25 years in <current-year + 25> dollars.
25 year replacement for solar is a myth. [1] . They may degrade to ~80% but they keep on working and producing, so far it seems almost indefinitely.
[1] https://www.ecoticias.com/en/goodbye-to-the-idea-that-solar-...