Where's an example for an operating nuclear power-plant that can be dialed down to match demand?

Afaik they have lots of momentum (for days even), and even their propenents argue for them being critical for providing a base supply^1^. Never have I heard anyone claiming they'd be good for matching fluctuating demand. Can you back that up?

Or are you getting your anti-reneweblaes lobbying talking points mixed up? That argument is usually used for natural gas plants.

^1^ which doesn't make sense in a renewables dominated grid.

You got mislead my dude. Probably because there's lot of propaganda for nuclear as it is needed to offload costs of building nuclear weapons, so especially USA, France and China are campaigning hard.

We dont need another finite fossil resource oligarchs can use to control us, we need to change societies habits so it complies with energy production. For the actually relevant parts its easy enough to store the energy. Batteries are not the only possibility, water elevation, hydrogen, pressure cells just to name a few. But even if batteries were the only ones, it's still worth manufacturing them compared to the costs of managing nuclear waste for timescales longer than human build structures exists.

Did a medieval person know what wages today would be? No Do you know what the nuclear end storage would cost in 1000 years? No But even for the time we can for see, in the best case scenario its an economically bad decission, in the worst case we poison the whole planet to a degree where no human life can exist.