Recommended size: 15,000–22,000W+
A 15,000–22,000W+ standby generator is what you need for whole-home backup including central AC. These permanently installed units start automatically within seconds of a power outage and run on natural gas or propane, so there is no refueling. They include a 200A transfer switch for direct panel connection.
Market-leading whole-home standby generator. Includes 200A transfer switch. Powers everything including central AC automatically when the grid goes down.
Central AC draws 10,500+ starting watts on its own, which pushes the total home load past what any portable generator can handle reliably. Standby generators solve this by delivering 15,000–22,000W+ continuously from a permanent installation connected to your home's natural gas line or a large propane tank. They start automatically when the grid goes down and switch back when power returns. Installation requires a licensed electrician and typically costs $500–$1,500 on top of the unit price. The 200A transfer switch included with both models below handles the full capacity of most residential electrical panels.
Generac
Market-leading whole-home standby generator. Includes 200A transfer switch. Powers everything including central AC automatically when the grid goes down.
Champion
Strong Generac alternative with 200A transfer switch included. Competitive pricing and quiet 67 dB operation for whole-home backup.
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