We smoke a moderate amount of food over a few days. Vacuum seal, dated with package info, then freeze. This makes it easier for meals when no one feels like cooking. Plus, if the powers out and you're using a pellet or other type that needs power to run. There's no worries about food going bad. AND smoked meats have longer shelf life.
Most pellet smokers only take a few hundred watts to run. You can usually run them off of a small power inverter.
I have an inverter I keep in the truck, along with a 50ft extension cord.