IMO you should always stay away from propane and ng generators for fuel availability reasons. Yes I might seem paranoid but if the shit really hits the fan I want to be able to quickly fuel my generator. Gasoline and diesel and also veggie fuel will be avail for much longer. Remember also that nat gas is pumped with electricity so if the outage was catastrophic your generator would be useless. Prolly would never happen but I am kinda prepper minded and think of that stuff. On another note even if you get a powerwall I would still get a generator just a cheap one though couple hundy's down at Harbor Freight type of deal just to run your fridge or other essentials with an extension cord. Depending on where you are in VT we can and do lose power for days.