You aren't considering the phase-out costs, particularly mortality and environmental costs from the fossil fuels that Germany has now doubled down on.

Green Party activists often demonize nuclear while calling for renewables and their inevitable companion of gas peaking plants. Activists pretend "renewables + gas" is green and clean using insane cognitive dissonance, while claiming that renewables can power 100% of a country's energy needs -- a farcical claim not supported in any country.