A standby generator is a backup power system that automatically activates during a power outage. It is typically connected to a home's electrical system and can provide electricity to essential appliances and systems, ensuring that daily activities can continue without interruption. These generators run on fuel sources like natural gas or propane and are designed to start within seconds of a power failure. They are commonly used in residential settings, as well as in commercial buildings, to maintain operations during emergencies and prevent damage from power loss.