Key Components of a Whole-Home Generator SystemA typical whole-home generator system consists of three core components:Automatic Transfer Switch (ATS): The ATS is the brain of the system. Why Propane Doesn’t Degrade Like Gasoline or Diesel When architects think about backup power, fuel reliability is just as crucial as generator sizing. When the grid goes down, propane fuel is ready without the hidden maintenance burden of fuel that deteriorates over time. Those iconic images highlight one of the most significant distinctions among generator fuel options: their availability in a crisis. Choosing Fuel with Resilience in MindFor architects, builders, and homeowners, the choice of generator fuel is not only about operating costs—it is about resilience.