portable generators

https://astro-wiki.win/index.php/Automatic_Transfer_Switches:_The_Brain_Behind_Seamless_Backup_Power

Portable generators are lifesavers during power outages or camping trips. You just fill them with gas, pull the cord, and you've got electricity for lights, the fridge, or even a small power tool. They're noisy and you need to keep them outside, but having that backup power ready to go gives real peace of mind, especially during storm season.