Local news had a feature on a man who has had his natural gas disconnected. They had a photo of him next to the cut off stubs of his gas lines coming out of the house. I believe he is still on the electrical grid, so is not technically off grid, but has solar panels, plus we can opt for wind power from our public service as some sort of paper shuffle exercise. He replaced his hot water heater and all appliances with electric. I did not catch in the article how he handles home heating. His comment about cost was, it wasn't cheap. Maybe some trend I'd not been aware of, but an interesting concept. Basically a fossil fuel free home, although there are probably some sort of equipment life cycle environmental costs.
It might be a bit of an ordeal for most homeowners, but I could see it in some new developments.