Really interesting things. Nuclear power is still non regenerative though. And I have no clear opinion on if its safe or not, just that its not really necessary.

No, costs for decentralized Solar would not be on the Individuals. Individuals are a Product of Capitalism, if you want to phrase it like this. They are consumers of electrical power and also now Producers. There should simply be an amount of solar power everyone can have, per capita for example. And for every person this power is then produced, on their roof or elswhere if its not fitting.

I have no clear plan, as consumers need to pay the consume. But for example having a tax-free lending (non native no idea how its called) would help