A whole-house generator is installed permanently outside your home on a concrete pad in your yard. Whenever there is a power outage or equipment failure, the whole-house generator will automatically provide power straight to your home’s electrical panel, even if you’re not home. There is an automatic transfer switch disconnecting you from your utility as soon as there’s an interruption in service. An internal combustion engine is at the heart of the system, powering it. The generator can energize your home nonstop for days. When power has been restored, the generator will return to standby mode, ready for the next power outage.