[PaulKeeble]

Lets say I had the knowledge and engineering to make a home scale (say 0.5-1.0 KW) reactor RTG or similar that could be sold as a sealed box you attach to a wall has sensors for various safety measures and just chucks out AC power all day long. At the cost of $5-10k that makes decent economic sense if it would keep going for about 25 year life time. I think that is potentially doable fairly safely with fuels other than Uranium 235.

You can vaguely do this DIY today using the long life radioactive glow sticks and some solar panels and get a constant power device but its very inefficient and too expensive for the power it produces and its half life is too short.

There is I think no viable way to make that business reality. The government intervention would be absurdly high and it would never make it to market even if the cost of the device was economically competitive with a Solar or Wind setup. This is one of the ways Solar and Wind became dominate, they scale really well from the small to the large, especially solar which the panels on the roof of a house are the same in a multiple MW power station.