Permanently installed GENERAC Standby Generators protect your home or business automatically. Running on natural gas or liquid propane (LP) fuel, it sits outside just like a central air conditioning unit. A backup generator delivers power directly to your electrical system, backing up all your systems or just the most essential items. Now coming with FREE Mobile Link™, allowing you to monitor the status of your generator on a phone, tablet or computer from anywhere in the world. GENERAC is the industry leader in backup power.