Awesome, now we're thinking of off-grid power generation.
So our next issue will be water and sewage.
No electricity grid = no power to water infrastructure.
In the meantime, how do you preserve food? Or have access to clean water?
Then, what do you do with your waste? Garbage trucks won't be running, so where do you put all the poo, urine, and garbage?
It would get nasty real fast if you're just trying to bury it in your backyard.