With a Generator Supercenter Standby Generator, your power will return within seconds of an outage, keeping your home and your family safe and secure. Because it's fully automatic, your Generator Supercenter Standby Generator will produce electricity as soon as it senses a power outage - 24 hours a day, 365 days a year, even if you're away. Unlike a portable generator, there are no switches to flip, extension cords to plug in or gas tanks to fill. Generator Supercenter Automatic Standby Generators are connected to your regular natural gas or propane service, providing you with continued power during an outage of any duration.