Adjustable transmissivity glass is a reality but not yet practical enough for it to be ubiquitous.
Radioactive batteries very much do exist, they are called RTGs, and they have given great benefit to spacecraft and other equipment. They power the Curiosity rover, for example. However, they are too impractical and too expensive to be used for ordinary household equipment. This would be true even without the radiation problems of RTGs, which are, of course, significant.
We should have moon colonies by now and ironically the Apollo program is probably the most at fault for that. In order to make it happen a lot of political capital was expended, creating a particular political situation which has become a permanent institution within NASA manned spaceflight (specifically, billions of federal dollars flowing into a few very specific congressional districts which has continued through Apollo and Shuttle programs and now SLS/Orion). If NASA had instead concentrated on a slower program which built up long-lived infrastructure and optimized toward lowering launch costs and increasing capabilities then we would easily have cities (or at least towns) in orbit and moonbases, and Mars bases.