A standby home generator keeps your power on during an outage. It’s installed outside your house (like an AC unit) and comes on automatically — whether you’re home or away. All within seconds of a power outage. Plus home generators run on propane or natural gas, so there’s no refueling. Automatically starts and restores power in seconds — whether you’re home or away. They powers your home, including critical hard-wired systems like AC, heat, sump pumps, well pumps, security systems and large appliances.