How Does a Home Backup Generator Work?

A Generac home backup generator senses a power outage, turns on automatically, and delivers backup power to your home. It will run until utility power returns - whether that's two hours or two weeks.

1 Utility Power Is Lost

Perhaps it's a storm. Maybe it's an equipment failure. In any case, the electricity you depend on is suddenly gone.

2 Your Generac Generator Senses A Problem

Within seconds, your generator prepares to restore your home's power.

3 The Generator Turns On Automatically - Whether You’re Home Or Away

Within a few seconds, it is up to speed and generating electricity.

4 Your Electricity Is Restored

The automatic transfer switch sends generator power to your home. And it will continue until utility power returns.

Our Generac Home Backup Generators

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David, Woke up at 2am. As I was dropping back to sleep I heard the generator start and in an instant there was a bang and the power came on. It was generator power and upon inspection I saw the street lights across the street and near the transformer were out. The generator went for a little less than ten minutes and then powered down as Con Ed came back online. It works!!! This is the first time this has happened to my knowledge. THANKS! Judy Judy, White Plains, NY

Home Backup Generators: What Do You Need To Know?

# HOW DOES A HOME BACKUP GENERATOR WORK?

It starts and stops automatically, and never needs refueling. This video explains how and why.

# GENERAC CUSTOMER TESTIMONIALS

Hear what several Generac customers have to say about their home backup generators.

# 7 OUT OF 10 CUSTOMERS CHOOSE GENERAC

Find out why so many homeowners choose a Generac home backup generator over competitive brands.