We had an ice storm a few years back and there were major power outages all over town. It seemed like everyone was buying an electric current generator. However, these appliances can be very dangerous, and we didn’t recommend that people use them to power the whole “grid” in the house. If the power came back on while the generator was plugged into the house, it could create real problems.
Even today, I don’t recommend these devices to anyone except people who work in the power industry or electricians who really understand how they work. At minimum, I would suggest you buy a small, portable unit that will power a few appliances in your house—like a heater for example, but don’t try to power up the whole house with a backup generator. You can easily start a fire.