A standby generator is permanently installed outdoors or inside your powerhouse. The generator operates on your home's existing fuel source - whether that's natural gas or liquid propane (LP). The Gillette generator can be used as a backup generator to charge your batteries and at the same time supply power to your home. Some models are quiet and have a sound proof encasing. Their price is very reasonable and their two wire start allows them to interface perfectly with the Outback controller and Trace inverter. We can order the right model for you, if you don't need to use it constantly or If you plan on using a unit day in and day out there is a model for you.