You can do a lot cheaper than a PowerWall. But you can also depend heavily on propane if you are off grid. You can get propane based central heating, propane st

You can do a lot cheaper than a PowerWall. But you can also depend heavily on propane if you are off grid. You can get propane based central heating, propane stove tops, propane refrigerators, propane freezers. Going to propane also helps with the overbuilding, because that's more or less pay-as-you-go instead of having to build a finite supply all at once.