People that are completely off the grid come under attack from local governments sometimes. I'm sure the entrenched utilities are behind it. It's easy to get laws passed under the guise of whatever will sell then apply them to the intended targets. Solar can come about when DC powered appliances are competitive in price. Currently they are sold for boats and rv's. If households could be weaned from AC power they could get by fine on solar arrays and batteries in large portions of the US. It would not surprise me if laws were passed requiring connections to the power generation companies under the guise of safety or some bullshit along with minimum payments in the name of fairness. I think if houses are going to be completely off the grid they are going to have to be built for that from the ground up. Requirements for heating and cooling are different in different climes as is the availability of sunlight for solar power and wind. I wouldn't start anything like that until I knew that lawmakers were with me. It would be too easy for utilities and their unions with politicians in their pocket to destroy such a project. Currently one could probably get away with engineering an RV to be off the grid and living in it.