It might seem funny but it really isn’t beyond a budding Thomas Edison to invent a small nuclear reactor. It was done in the 1950’s and 60’s to make it possible to power airplanes with nuclear energy. Read up on molten salt reactors and thorium and you will see the next wave in energy which is cheap and plentiful. Reactors small enough to power a car are not beyond possibility in as short a time as 50 years. Already they can fit in a shipping container. Also look up Terrapower and watch the Netflix program about Bill Gates. It’s the answer to global climate change and still the best thing whether climate change is real or not.
I did some research on aqueous homogenous reactors and it seems like you could build them with garage tech and natural uranium. 25kw to 50kw sized units seam feasible. You would need to house one in a small building packed with polyethylene shielding and also run a little chemical plant to handle the fission products and activated byproduct, but totally doable. Apparently neutron reflector tech is way better than it used to be. Of course it would be a nuclear proliferation nightmare, but heh, neighborhood nuclear power plant!