Generac Home Standby Generators

Home Standby Generators

Power. Our lives depend on it.

Receive a 10% Costco Shop Card on qualifying Generac and Honeywell generator purchases.*

Call for a Free In-Home Consultation:
1-866-455-1788

* 10% Shop Card Applies Only to Installed Products

Home Backup Power

Comfort · Security · Convenience

A permanently installed 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.

Generac invented the home standby generator category in 1977, and we still engineer and build them right here in Wisconsin. Today our U.S. manufacturing facilities are state of the art, and our products lead the industry in quality, breadth of offering, and innovation.

How An Automatic Home Standby Generator Works

1
Utility power is lost. Maybe it’s a storm or an equipment failure. In any case, the electricity you’re dependent on is suddenly gone.
2
The Generator automatically detects a problem. Within seconds, your generator prepares to restore your home’s power
3
The Generator automatically turns on. Your generator is up to speed and generating electricity.
4
Electricity is restored. The automatic transfer switch sends generator power to your home and will continue providing power until your main power source returns.
5
Utility power is restored. Your generator system detects when utility power is returned and restores utility power to your home. The system then returns the generator to standby mode.

How We Work

1
Call 1-866-455-1788 to request a complimentary in-home consultation.

2
A Generac generator consultant will present you with generator solutions specifically for your home and your needs.
3
A Generac generator consultant will take detailed measurements, finalize your power solution and confirm the cost of your project.
4
A Generac dealer will fulfill your order and complete your project, ensuring your satisfaction through the entire process.
5
Earn a 10% Costco Shop Card on qualifying Generac and Honeywell generator purchases.

Generac’s
G-Force™ Engine

Generac’s G-Force™ Engine

Is a purpose-built, pressure-lubricated engine capable of handling the rigors of generator use, resulting in power that's more reliable and requires less routine maintenance than any competitive engine.

TruePower™
Technology

TruePower™ Technology

Delivers best-in-class power quality with less than 5 percent total harmonic distortion for clean, smooth operation of sensitive electronics and appliances.

Tough,
Durable Enclosure

Tough, Durable Enclosure

Generac’s RhinoCoat powder-coated finish helps make corrosion-resistant aluminum perfect for all weather conditions.

Smart Module
Management

Smart Module Management

Generac’s Smart Module Management (SMM) system¹ supplies backup power to your most essential circuits first, and only pushes surplus power to less-essential circuits, as it becomes available. You decide what gets priority. ¹Available on select models.

Quiet-Test™
Self-Test Mode

Quiet-Test™ Self-Test Mode

Quiet-Test™ Self-Test Mode lets your generator run its weekly self-test at a lower RPM making it quieter while consuming less fuel.

Smart,
User-Friendly Controls

Smart, User-Friendly Controls

Generac’s Evolution™ Controller² features a multilingual LCD display that allows users to monitor battery status and track maintenance intervals to ensure your generator is always in top operating condition. ²Available on select models.

Mobile Link™ · Get Connected

Receive real-time status updates. Allows you to monitor the status of your generator from anywhere in the world using a smartphone, tablet, or PC. Easily access information, such as the current operating status and maintenance alerts. With Mobile Link™ Remote Monitoring, you are taken care of before the next power outage.

Receive Mobile Link™ Remote Monitoring FREE with every Generac Guardian Series Home Standby Generator.

The Generac Promise

5-Year Limited Warranty. We are proud of our innovative product design, high quality, and first class reliability so that is why we stand behind our generators with a strong 5-year limited warranty.

Additional Member Perk

Earn 2% reward through your Executive Membership.**

**Terms, restrictions, and annual maximums apply. To upgrade or for more information on Executive Membership, visit the membership counter at any Costco warehouse or call 1-800-774-2678.

Frequently Asked Questions

Why should I buy an automatic standby generator instead of a portable generator?

During a utility power outage, an automatic backup generator provides numerous advantages over a portable generator:

The American Red Cross recommends permanently installed backup generators as a safer way to provide backup power to a home than a portable generator.
With an automatic backup generator properly installed outside, your home is protected from deadly carbon monoxide poisoning that is a much greater risk with portable generators.
Running on the home’s natural gas or liquid propane fuel supply, it is less expensive to run than gasoline and sources, such as natural gas, do not need to be refilled.
They start automatically within seconds of a power outage, and eliminate the need to haul a portable generator outside or run extension cords throughout your home.
They provide protection 24/7, whether you’re home or away, and they turn themselves off when utility power returns, so there is no need to monitor the unit during an outage.

What’s the advantage of an aluminum enclosure on my home standby generator?

Generac is one of the few companies to offer premium aluminum enclosures for its residential backup generators. Aluminum enclosures are naturally rust and corrosion resistant. For salt air or high humidity conditions, aluminum is highly recommended to ensure decades of worry free service.

What type of fuel does a home standby generator require?

Whether you live in the suburbs, the country or off the grid, we have a home standby solution that can be tailored to your home and property, and the type of fuel service that is available to you.

Natural Gas (NG) The preferred fuel, when it’s available. It burns clean, is inexpensive, and can supply a generator indefinitely. Line pressure will be checked by the installer to ensure it’s sufficient.

Liquid Propane (LP) This clean-burning fuel is stored in a pressurized outdoor tank that needs periodic refills. Commonly used when natural gas is not available.

Diesel Although it’s not flammable and its tank isn’t pressurized, it doesn’t burn as cleanly as natural gas or propane. If using diesel, make sure the fuel is stabilized to keep it fresh.

How does an automatic transfer switch work?

The transfer switch is an essential part of the home backup system. Its primary function is to prevent your home from being powered by utility and generator power at the same time. If utility power is lost, the generator control panel senses the loss and tells the transfer switch to close off the connection with utility and complete the connection with the generator so it can begin providing power to the home.

Schedule a Consultation

WARNING: Cancer and Reproductive Harm. For more information go to: www.P65Warnings.ca.gov.

Terms and Conditions:
This home improvement product and service is available in select locations. Please call Costco at 1-866-455-1788 for availability in your area.

Full Terms and Conditions provided at consultation.

In some locations, Costco only sells the product and Costco does not offer or perform installation services. For installation in those locations, Costco will recommend a dealer and you will need to pay the dealer separately.

*Costco Shop Card applies to qualifying Generac and Honeywell purchases. Costco Shop Card amount is based on the total PRE-TAX amount paid to Costco. Additional work required, including electrical or plumbing, or additional services purchased do not count toward the Costco Shop Card total. Please allow up to 4 weeks for delivery of the Costco Shop Card, after signed completion of the project. See your dealer representative for details.

Returns:
Special order merchandise, custom merchandise and installed merchandise cannot be returned or refunded after the expiration of your three business day right-to-cancel period. This is an exception to Costco’s standard return policy.

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Generac Home Standby Generators

Power. Our lives depend on it.

Schedule a Consultation

Compare up to 4 Products

Wall Décor
From $28.99

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Costco Shop Card with
Every Sailing