"Whether you think you can, or you think you can't - you're right."
Henry Ford
People have been living aboard cruising sailboats for years and don't get any subsidies. They use wind power, towed gensets, solar or all of the above to recharge batteries that are generally "old tech" deep cycle batteries. And think nothing of it. I've always maintained that the average cruising sailor makes the average "prepper" look foolish, because it's their mindset and skills more than the gear.
With LED lighting and wood, pellet, or propane heat, more and more people who are building "near off-grid" systems, because they want to be independent.
A local business
https://www.altestore.com/store/ has a good business setting up small scale (un subsidized) off-grid systems. I know several people who have set up their camps or cabins with this gear, including water pumps, lighting, radios, and electric assist for heat. They don't typically have washers and dryers, for example, but lots of people are going to passive systems rather than running gensets all day and night.
Only the devoted are living this way full time, but it's getting easier and cheaper to do.