How Does an Automatic Generator Work Without Electricity

The internal combustion engines in generators use a battery to spark the fuel (usually natural gas or liquid propane) and then an alternator converts mechanical energy into electricity.

The generators start on their own when anything more than a momentary power outage is detected. Next, a transfer switch connects the generator to your home’s electrical system, isolates it from the utility grid, and supplies power within a few seconds. When the electrical company restores your service, the transfer switch follows the same process in reverse, the generator cools down, and then it turns off.

Automatically disconnecting from the public utility prevents back-feeding to the power lines, which can endanger workers and reenergize downed lines. It also prevents damage to your generator when the power returns.

There’s a lot to know about whole-home generators! Fortunately, the knowledgeable professionals at Grand Bay Electric can answer all your questions, determine the best model for your needs, provide a comprehensive, free estimate, handle the initial installation and annual maintenance, and ensure your family stays safe and comfortable.