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Home Generator Buyer's Guide

Home Backup

Explore all Generac home backup generators

Browse the features and benefits of Generac home backup generators and see why we're the #1 selling brand on the market.

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<strong>The truth</strong> about battery powered backup systems

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?

Discover the Difference

Protect Your Investment Longer Than Ever Before

Now you can protect your investment longer than ever before with Generac's new 7 and 10 Year Extended Limited Warranties.

Contact your local Generac dealer to learn more.

Find Your Local Dealer
New 7 and 10 Year
New Products

Generac is always innovating to meet customer needs. For instance, we just launched a 22 kW Guardian Series home standby generator. Check out our “What’s New” page to learn about it and the other new products we have available.

See What's New

Back up your entire home or just the essentials

Generac's most popular home backup generators, the Guardian® Series kicks in within seconds of determining power loss—automatically—and runs for as long as necessary until utility power returns.

“I’d be more than happy to buy it again, it is one of the best investments I have ever made in this house.” — David Panzerella

Explore the Guardian Series

Premium Whole-house Backup Power

The first variable-speed home standby generator, the Generac Synergy varies its speed based upon electrical load, for quieter operation, improved fuel-effeciency, and exceptionally clean power output.

Explore the Synergy

Specifically designed for off-grid use

EcoGen™ is the only automatic backup generator engineered specifically for off-grid use with an alternative energy system, like wind or solar power.Up to $2000 incentive available.

Explore the EcoGen

Available at Lowe's

The Centurion® Series is fully automatic and can protect your entire home or just the most essential items.

“To me, this generator has paid for itself several times. My family is going to be safe and secure in my house because of this generator.  That gives you that feeling of security that is priceless.” — Greg Baeppler

Explore the Centurion Series

The premium solution for large homes

The QuietSource® Series is the strong, silent type. Its premium features make it the ideal solution for larger residential backup power.

“I pretty much tell everybody ‘get a generator’.  I had my (Generac) generator installed in January, 2012. It’s a whole house system so everything is connected, I don’t have to worry about anything.  It’s very reassuring.”  — Eve Hershkowitz

Explore the QuietSource Series

A cost-effective pre-packaged diesel solution

Don’t have easy access to natural gas or liquid propane fuel? No problem. The pre-packaged Protector™ Series backup generators run on diesel fuel, and are more cost-effective than many competitive diesel-fueled generators.

“When the power first went off, within the first few minutes we got calls from our neighbors asking us how come we still have power?” — Gerald Grupp

Explore the Protector Series

Subject to credit approval. Minimum monthly payments required. Available in the U.S. only. See dealer for details. View all options

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The Generac Promise


Peace of mind.

And the power to live.

The Generac Promise means that our 8 – 22 kilowatt Guardian® Series home backup generators will give you peace of mind and the power to live. It means that we engineer and build them here in America*. It means we stand behind them with a strong 5-year limited warranty. We promise to continue to innovate, like with our new Mobile Link™ cellular monitoring system, so you’ll know the status of your generator, no matter where you are. And if you ever need to call, we’re standing by 24/7, every minute of every day, ready to pick up the phone right here in Wisconsin.

*Built in the USA using domestic and foreign parts.

We’ll back you up. We’re standing by. Count on it.

Generac Stock Ticker

  • NYQ
  • GNRC
  • $37.58
  • 5/26/2016 4:02 PM EST