Rooftop solar is available, but you can't exactly get a 30 kW washing machine sized nuclear power plant to install in your basement, can you? It's mainly due to non-proliferation risks. Remove some of the regulatory hurdles, like requiring airplane impact proof reactor containments (after 9/11 of course) and we'll see a boomibg nuclear industry.

https://www.troutmansandersenergyreport.com/2009/02/nrc-requ...