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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We have used Spectrum for all of electrical needs in the past. They have been great. This year we used them to complete the annual maintenance on our Generac generator. It is a liquid cooled 45K generator. They completed a full check list of all the items needed. They were thorough, organized and checked everything including the switching. We are ready for whatever winter brings, thanks to Spectrum. I have used a lot of different companies in the past and would only recommend Spectrum for your generator, your maintenance and your electrical needs. Don't look any further. Mountainj, Evergreen, CO

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.