A Closer Look at How Residential Generators Work

Whole-home generators automatically activate to supply electricity during a power outage. They support families’ safety and comfort during emergencies. Knowing how a residential generator works can change the way homeowners think about whole-home generators. This article will guide you through the workings of these machines so you can learn about their value.

Fuel Supply

Generators rely on a fuel supply to start their engine and generate electricity. Common fuel sources include natural gas, propane, and diesel. For a convenient backup power source, homeowners may consider fueling their generators through a natural gas or propane pipeline connected to the rest of their homes.

Power Transfer

The power transfer process begins with an automatic transfer switch (ATS). This component monitors the electricity flow from the grid. When it senses a disruption, the switch disconnects your home from the grid and connects to the generator.

The engine then starts up, powering the alternator that generates electricity through electromagnetic induction. It’s a seamless transition that ensures you hardly notice when the generator takes over, keeping all your essential systems running smoothly.

Continuous Power Supply

While the generator runs, it delivers a continuous power supply to the entire home. The engine keeps the alternator working, producing a stable electricity output. Built-in cooling and exhaust systems guarantee the generator doesn’t overheat during operation. By selecting a generator with an output capacity to power every essential device in your home, your loved ones will feel secure and comfortable when the power goes out.

Restoring Grid Power

The generator’s ATS senses the restoration of utility power. Once the sensor detects stable power, the ATS transfers the home’s electricity back to the grid, and the generator slows its operation before shutting off. This process happens without your input, making power transfer convenient and efficient. The generator will be ready the next time you need it to provide ongoing peace of mind.



Understanding how residential generators work can teach you their amazing benefits. They keep your home safe and comfortable during power outages. Invest in whole-home generators in Portland, OR, by contacting NW Generator Pros for a professional installation. Our team can help you find the best generator for your family’s needs.