[protheus]

Nuclear batteries are a reality for over 50 years now. They can power up what you want for over 60 years, and are mostly based on radioactive izotopes almost harmless (low radiation emission).
But, if everyone had such a battery powering it's house, with, let's say hypothetically, a buying cost of 30.000-40.000 $, this will lead to this questions:
1. How many taxes can the government get from that?
Only one, at the buying moment.
2.How many companies with employees will you keep alive with that?
Only one, the one that creates the battery, and only once every 60 years, when you buy it.
So, you will discard oil, coal and even electricity (electricity from providers I mean)... These are industries (just like some banks in USA were considered) "too big to fall". Global economy interests are more powerful than anything you can think of.