standby generators 9

https://alpha-wiki.win/index.php/Standby_Generators:_What_You_Need_to_Know_for_Backup_Power

When the power goes out, a standby generator kicks on automatically, keeping your fridge running and your lights on without you having to do a thing. It's permanently installed outside, connected to your home's electrical system, and runs on natural gas or propane. Unlike portable generators, there's no hauling it out of the garage or fumbling with extension cords in the rain—just a seamless switch that makes a blackout feel like a minor inconvenience.