A permanently installed Generac home backup generator protects your home automatically. It runs on natural gas or liquid propane (LP) fuel, and sits outside just like a central air conditioning unit. A home backup generator delivers power directly to your home’s electrical system, backing up your entire home or just the most essential items. How It Works
Don't worry about having to be there to start and stop your Generac home backup generator. Because it does that automatically. Whether you're home or away.
Refueling Not Necessary
Your Generac home backup generator runs on your existing natural gas or LP fuel supply. Save the gas cans for your other outdoor power equipment.
Power Directly to Your Home
You'll never have to run an extension cord through a window or door again. Your Generac home backup generator safely delivers power right to your home's electrical panel.
The #1 Selling Brand of Home Backup Generators
Generac created the home backup generator category. Today, our generators are preferred by 7 out of every 10 homeowners who invest in home backup power.
24/7/365 Customer Support
Power outages aren't a 9-to-5 thing. That's why we're standing by all day every day from our headquarters in Wisconsin to answer any questions you might have.
What is the difference between a home backup generator and a home battery system? Can a battery provide the same backup power support to my home as a generator? How long will a battery backup system power a home through a power outage?
With a few clicks of the mouse, our easy-to-use generator sizing calculator will recommend a range of generators that fit your needs.
We know a home backup generator is a big investment. Here's what you need to know to make an informed decision about your Generac home backup generator purchase.
How Do I Choose the Right Generator for Me?
Generac has an online sizing calculator that can help you determine the right home backup generator for your unique needs. The best way, though, is to work with one of our 5000 dealers. They'll help you select the right generator, and provide you with a free, in-home assessment.
What's Involved in Installing a Home Backup Generator?
Installing a home backup generator is an exciting time. Your installer will prepare the installation site outside your home, place the generator, run the natural gas or LP fuel line, install the transfer switch, and make all of the necessary electrical connections. And they will make sure that your backup generator runs properly, and is ready for its first power outage.
How Much is Everything Going to Cost?
Generac home backup generators start at $1899--the most cost-effective on the market. Installation costs vary by system size, installation considerations, and local building codes. We recommend getting a free, in-home assessment from a Generac dealer near you.
How Do I Get Started?
You can begin exploring the full selection of Generac home backup generators. Use our interactive sizing guide to narrow down the selection. Then contact a Generac dealer for a free, in-home assessment. And if you have any questions, you can chat with a Generac representative.
Subject to credit approval. Minimum monthly payments required. Available in the U.S. only. See dealer for details. View all options
We reserve the right to alter or discontinue the terms of these promotional offers anytime.
Learn more about how Generac home backup generators work, and hear from Real Generac Owners.
Watch More Videos Here
It starts and stops automatically, and never needs refueling. This video explains how and why.
Hear what several Generac customers have to say about their home backup generators.
Find out why so many homeowners choose a Generac home backup generator over competitive brands.
Airing nationwide, Generac's infomercial explains why homeowners need a source of automatic backup power. And it highlights some special offers you can take advantage of if you act now to buy and install a Generac automatic home backup generator.
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