Guardian 24kW Home Backup Generator

Starting At

$5,539.00 Transfer Switch, Installation, Taxes and Shipping Not Included Where To Buy Get a Free Quote What is an In-Home Assessment?



Introducing the largest air-cooled generator on the market - Generac’s 24kW is a big deal in a small package. Generac’s commitment to continuous improvement, innovation and technology is giving us the ability to bring more power to you. With Generac’s new 24kW you can save up to $8,000 in product and installation costs, when compared to competitive output products, while powering what is most important for your home or small business.  The new 24kW Guardian unit packs the most power into a small package, taking up to 70% less space when compared to similar output products.


Save up to $8,000 in product & installation costs*
*When compared to competitive output products

Takes up to 70% less space*
*When compared to competitive output products

5 Year Limited Warranty for automatic standby generators.

True Power™ Technology delivers best-in-class power quality with less than 5 percent total harmonic distortion for clean, smooth operation of sensitive electronics and appliances

Generac generators and engines are Engineered and Built in the USA*
*Assembled in the USA using domestic and foreign parts

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. Learn more about the G‑Force Engine »

24/7•365 Customer Support Team standing by all day, every day from our headquarters in Wisconsin to answer any questions you might have.

Quiet-Test™ Self-Test Mode runs at a lower RPM for a five or twelve minute test, making generators significantly quieter than other brands while consuming less fuel.

Tough, Durable All-Aluminum Enclosures: Our RhinoCoat™ powder-coated finish helps make corrosion-resistant aluminum perfect for all weather conditions.

Smart, User-Friendly Controls.  Generac’s Evolution™ Controller 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.

Home Generator Resources

The purchase of a home backup generator will give you peace of mind for years to come, but it’s a big investment. That is why we want to give you as much information as possible so you can make the right decision based on your needs and budget. The options below will help you understand how the entire process works, what your financing options are, and how to choose the right backup power solution.


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Rated 5 out of 5 by from Phantom 7 Year Warranty 7 Year Warranty When we looked at purchasing a generator in March of this year we were told that if we purchased it we would get an additional seven year warranty with $695. The generator was delivered in September because of delays with Generac, which we understand, but now we are being told that because we didn't take delivery in the month that we purchased it that we cannot have the warranty because it was with a third party supplier. I don't think we should be penalized because Generac was unable to supply the generator in a timely manner. Would you please contact me and let me know why my purchase promise is not being honored?
Date published: 2021-11-27
Rated 5 out of 5 by from Peace of mind. It is a nice feeling now not to have to worry about outages. just too old to fight portable generators and have to find fuel for them. a very nice looking unit, quieter than my old unit. installation was very professional. would highly recommend to anyone.
Date published: 2021-11-24
Rated 5 out of 5 by from Love this Generator I bought my Generator back in March 2021. This was after experiencing the Big Texas Freeze in February of 2021. That Freeze caused almost $125000 in water damage. Plus, I had a $10800 deductible on my Home Ins. I realized then and there, that is I had purchased and installed a whole house generator I would at least have a fighting chance against Mother Nature and the Insurance Company. The unit arrived 30 days before expectation, I had it placed but, still had to wait for the gas line and the electrical to be installed. Finally, with all of that completed, Parker Power in Lewisville, TX came out and started the unit. The system ran perfectly as advertised. Not 45min. later we had a bad Fall Thunderstorm and w Texas non-reliability we lost the power. The Generator immediately kicked in and ran for the next 2hrs until the utilities came back on. I hardly skipped a beat. Thank God I was able to afford this and have some peace of mind! This is a great generator system.
Date published: 2021-11-11
Rated 5 out of 5 by from Very satisfied with Generac in the past. We were very satisfied in the past with our Generac Generator. It performed very well, efficient .
Date published: 2021-11-04
Rated 5 out of 5 by from Quality Product & Company From the beginning of the process to today’s delivery, everyone at Electrical System of Maine (ESM) in Auburn has been great to work with. A very professional but down to earth group of people. Having done my homework I’m sure I got the best deal with this company for such a high quality product! From Michelle in the office to the two guys who did a masterful job wiring my house for installation and the installation itself…a very big thank-you!! You all patiently answered any & all of my questions. And as a promise to them….I suggest that their boss/owner hook them up with home generators for them and their families (take care of the ones who take care of you/your business)!!
Date published: 2021-10-30
Rated 5 out of 5 by from Quality installation job I am at peace now with a full house generator! Never have to worry about losing power during a flash flood ever again. Lee Legler Construction gets an A+ for the installation, especially with the platform base using pebbles to keep the generator balanced and a few inches above ground.
Date published: 2021-10-28
Rated 5 out of 5 by from WE JUST GOT THE BEST WHOLE HOUSE GENERATOR INSTALLED! We just got our Generac 24kW whole house generator installed. The professional installers were great. The generator itself is sleek looking and ran smoothly during it first weekly test run. The maintenance is easy, the sound is quieter than a lot in our neighborhood. We feel so confident with our Generac generator.
Date published: 2021-10-25
Rated 4 out of 5 by from Finally Installed - WiFi needs some Work It took 6 months longer than originally told with the back order delays to finally arrive and then an additional 3 months to receive the WiFi module, but overall happy with the unit. Living along the Gulf Coast we decided it was an essential upgrade. Only drawback I've come across is the WiFi connection, which needs compatibility upgraded to include 5G. Being restricted to only being able to connect to 2.4 ghz makes it difficult with today's routers for home WiFi as some routers require advanced knowledge to disable the 5G. Fortunately, I know how to disable mine, as the support people couldn't assist other than telling me it was strictly a 2.4 ghz connection and 5G had to be disabled. The installation instructions didn't identify that there are 2 apps required to download in order to complete the installation connection. The MobileLink Setup app to connect the generator to the WiFi, then the second is the MobileLink app used for monitoring it. I've never had to use 2 apps to connect a device to my network.
Date published: 2021-10-25
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24kW-7210 200 SE ATS with HEMS (not CUL) WiFi-Enabled is rated 4.7 out of 5 by 60.
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