For electricity in homes, it is environmentally best to make it as much decentralized as possible. There are many sites claiming to offer guide book for making free energy magnetic systems which can reduce your utility bills substantially.

If some independent reputed research organization test these systems & certify them, manufacturers will drive in hordes for manufacturing & marketing them. Of course there will be resistance from utility companies but they will have to be told that big industries will need their electricity so they need not be afraid about these small independent devices.

As they are relatively small, one number per room or per small house may have to be installed.

I am only giving bing.com search result page but any one can try any search engine for "free energy" & results will be similar.