Guardian 24kW Home Backup Generator

Starting At

$4,999.00 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.

For the first time, homeowners can receive PWRview, Generac’s home energy management system, which allows generator owners to monitor and manage their home energy usage, leading to a reduction in electric utility bills of up to 20%*.  When extended over the life of the generator, using PWRview you could save enough to pay for your generator.**

*Based on internal company data; savings will vary based on multiple factors, including energy habits, size of home, and number of occupants.
**Savings Assumptions based on an average electric bill of $125 per month, an initial 20%+ annual electric utility bill savings from the PWRView installation (and resulting energy usage modifications), maintained over a 15 year period, and a 3% annual increase in electricity rates.
+Based on internal company data.  Savings will vary based on multiple factors, including energy habits, size of home, and number of occupants. Some users may experience less than an initial 20% reduction in annual electric utility bill savings.


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 GREAT GENERATOR We just installed this generator, so we haven't had it kick on yet during a power outage but its so nice to know that we will never be without power due to this powerhouse generator!!!
Date published: 2021-02-25
Rated 5 out of 5 by from Quality Product for a reasonable price Had my 22KW generator installed professionally by Generac today. Also had two surge protectors and a automatic transfer switch installed. Nice clean install and the unit started on the first try. Installers showed up on time and were very courteous. Unit enclosure looks good and access to change the oil and filter is easy. I'm very happy with this installation. Thank you Anthony and Crew.
Date published: 2020-12-31
Rated 3 out of 5 by from It's mostly OK Pros: -received complete unit as advertised w transfer switch -installation went fine, minor issues but resolved on-site (e.g. installer insisted that the 3rd pad bolt was no required I told him to install the bolt it wasn't an extra part) -generator test went fine - walked through it three times and house panel switched over no problem Cons: -it took over 3 months to get the generator -generator price is OK - installation price was very, very high -first mounting pad was received cracked and had to be replaced -the registration process although quick was incorrect and despite my many calls still is incorrect -the WiFi, although a nice feature, took an hour to setup following Generac's directions - the generator just didn't see the routers (I have several) - had to reset and reset and reset (you get the idea) -the MobileLink application is a nightmare on both Android and iOS - and I mean a nightmare - difficult and glitchy - although advertised full of features it has none that are at all useful with the included WiFi beyond status of generator - it doesn't have a feature to change the original convoluted password they issue, or if it does it is hidden so deep that I can't find it, and you can't start or stop your generator from the app which is what they actually advertise - for all intent and purposes you may as well pass on this feature and save some money net-net ... maybe long term this will be a good generator and investment (I hope) but it's not as useful and full featured as advertised
Date published: 2020-12-10
Rated 4 out of 5 by from Great Service and Installation Generex from start to finish did a wonderful job with installation of generator and LPG tank to fuel system. Hghly recommend them
Date published: 2020-12-08
Rated 4 out of 5 by from Nice generator set The generator is good, I do wish the generator and the transfer switch were painted the same color. I know its minor, but it bothers me. The gray color of the transfer switch blends in well with my house siding. I have my generator installed near my a/c units and they are all gray, but the generator itself stands out with its beige/tan color. I also with it could be a little more quiet and the sound proofing on the generator lid does'nt stay in place very well. Every time I open the top cover the sound proofing has fallen down.
Date published: 2020-11-19
Rated 5 out of 5 by from Great generator, be careful who installs First off, let me say the generator and the crew who installed would get 10 stars if possible. Make sure installer has someone to handle all permits and follow through as we had to run on generator all night due to permit not being sent to power company
Date published: 2020-11-11
Rated 5 out of 5 by from Very pleased with the 22-KW. The Generator has preformed great for our house during 2 Hurricanes this year. It ran everything in the house as during a normal everyday operation at our home. That includes a 5-ton central air unit. Clothes washer, clothes dryer, 2-refrigerators, 3-deepfreezes & all the other normally used appliances.
Date published: 2020-10-18
Rated 3 out of 5 by from Not what I expected from a top of the line generator Although I am impressed with the overall quality of my 22kw Generac generator & transfer switch, unfortunately I did not do enough reserarch & was surprised to find: 1. It runs at roughly 1/2 speed (2.5gph LPG) with no load. Regardless of what their engineers claim, there is no excuse for this with today's technology especially since it already drops from high rpm to idle when exercising at no load. It should match rpm to load like most portable units do. 2. I am unable to turn it off & on remotely with my smart phone app. I would think the existing software could do this safely. It appears at least one other manufacturer offers this. 3. The transfer switch does not indicate when load is from utility vs. gen unless you open the cover & note the relay position with a flashlight (or remove the inner cover). Note it does include a switch you can wire your own indicator light to. 4. There is no user display of output, i.e. watts, amps, volts, frequency. Generac confirmed a dealer can access volts & frequency on the generator display but not load. Although I have all the meters to measure these for testing, there needs to be a full time digital display on the transfer switch & on the smart phone app. My experience is as an industrial engineer & building contractor.
Date published: 2020-10-03
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24kW-7210 200 SE ATS with HEMS (not CUL) WiFi-Enabled is rated 4.3 out of 5 by 9.
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Your generator could pay for itself.

PWRview, Generac's home energy management system, allows generator owners to monitor and manage
home energy usage, leading to a reduction in electric utility bill of up to 20%. Using PWRview, homeowners
can save enough money to pay for their generator over time**.

See how much you could save: