The decentralization of energy, micro-grid managment, storage and prodution has to be the future of energy suply. It might not just depend on solar, but wichever methods being more effective on the local grid.
This ideas might create an whole new industry of giving power to the people (pun intendend). We need to start working on giving the tools and education so that people can live off grid.
Other than the lobbys I believe the main obstacle today is the li-on batteries, but with advances with graphene based batteries I think we can solve this issue. While that hasn't been solved we can work with micro-grid managment and big battery ideas (like the use of a local lakes or something).

And like the industrial revolution, the decentralization of energy will create a massive change of politics and ways of life.