Could Germany reduce its dependency on Russian gas with more nuclear?

Probably, but it's not just the politicians and the population who don't want nuclear power, it's also the operators. They're not interested anymore as they can't plan ahead. If the current government decided that the nuclear power plants should run longer they would all need to get modernised first, meaning the operators would have to invest and who says the next government won't shut down them down again. Nobody is going to invest in building a new nuclear power plant that may or may not enter operation in 15-20 years.

> Could Germany reduce its dependency on Russian gas with more nuclear?

Short answer: No. Germany mostly relies on gas for heating, not for electricity.

No where in my post did I say anything about new plants. Simply keep the current ones going until (a) coal/gas is retired, (b) enough renewables are built to then start retiring current nuclear plants.

> Short answer: No. Germany mostly relies on gas for heating, not for electricity.

How cold does Germany get? Some heat pumps can work down to -20C:

* https://www.mitsubishielectric.ca/en/hvac/professionals/fs-s...

* https://www.fujitsugeneral.com/us/residential/technology/xlt...

(I'm Canadian, so there's cold and then there's "cold".)

Winters can get cold depending on the area, but probably warmer on average than Canada. There are currently around 30 million households (around 75%) heating with either gas (50%) or oil (25%). Don't get me wrong, they will all eventually have to switch to some other heating method, most likely to heat pumps, but that will take a few years to maybe a decade.