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27kW Protector QS

Model #RG027

Starting At

$13,259.00 Where To Buy

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Generac Protector 27kW QS Standby Generator

Automatic Backup Power For Large or Custom Homes
Looking to back up your entire home, or more items than usual? Consider the Protector gaseous automatic backup generator line. These units powers essential appliances and modern technologies during power outages, allowing homeowners and their families to continue living life comfortably and without interruption.

What Makes the Protector Series Such a Great Choice?
Generac's Protector Series offers benefits that competitors can’t match. Installation flexibility and cost reduction. Sophisticated, yet intuitive controls. Quiet operation. Supported by a 24/7/365 customer support team at our corporate headquarters, and a nationwide dealer network of more than 6,000 strong.

The best liquid cooled engine packs more power into a smaller footprint - ideal when space is a premium.  The neutral styling, color and small footprint fits unobtrusively into landscaping. Clean burning, continuous fuel choice of natural gas to LP.

True Power™ Technology
Delivers best-in class power quality with less than 5% total harmonic distortion (THD) for clean, smooth operation of sensitive electronics and appliances.

Evolution™ Controller
A cutting-edge, intuitive control. The Evolution controller features a multilingual, two-line LCD text display with color-coded, backlit buttons. It has received upgrades, including USB flash capability, smart battery charging, voltage adjustment, and backlit membrane pad style buttons.

5-year limited warranty with extended warranty options available
We are proud of our innovative product design, high quality and first-class reliability so we stand behind them with a strong 5, 7 or 10-year limited warranty.

Can Be Installed Just 18" From a Structure
Capability to be installed 18 inches away from a structure, ideal for areas with tight lot lines.  Generac’s is the only manufacturer of standby generators to have 18” offset on most of its residential lineup.

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

All backup generators run a weekly test to ensure the system is running properly. Thanks to Quiet-Test, your Protector Series home generator runs its self-test at a lower, quieter RPM, which can be programmed to run weekly, bi-weekly, or monthly.

Mobile Link™ Connectivity
Mobile Link™ Connectivity 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 the generator's maintenance schedule. Learn more about Mobile Link
Mobile Link comes standard with Protector Series 22 - 100 kW gaseous models and diesel (RD) models.  The Wi-Fi device is standard on every Protector series generator except for the RG13090/RG15090 and the 130 - 150 kW gaseous models.

Additional Features
Improved stub ups and electrical connection access decrease installation costs. All connections are dual conductor rated, and the implementation of quick connects for the control wires, completely eliminates the need for crimping or lugging.
Improved customer connection access, which decreases installation costs.

Generac <strong>Protector 27kW QS </strong>Standby Generator

Home Generator Buyer's Guide

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Rated 4 out of 5 by from Product appearance is awesome and has great features. I just had this installed in June 2023. Can’t say much about it except it seems to operate as advertised so far.
Date published: 2023-08-18
Rated 5 out of 5 by from Generac products are number one Generac products are #1 I will recommend this product to everyone I meet
Date published: 2023-07-27
Rated 4 out of 5 by from Product has great features. I really can’t give an honest opinion about the operation of the unit yet because I can’t seem to get it operational. 😞
Date published: 2023-06-29
Rated 5 out of 5 by from 27 kw liquid cooled 1800 rpm The generator was installed sooner than expected. Hook up took a full day, digging trenches, transfer switch, wiring and test run. Slab was poured 2 weeks prior to generator install. Technician provided an excellent overview of features and maintenance. Setting up touch pad and Wi-Fi straight forward. As recommended by technician I have been running generator a couple ours per day with a load to break in and perform first service. Generator Carries whole house with no issues, 2 central hvac units. To date no power outage experienced. So far we are completely satisfied with installation and generator performance. The generator is much quieter than the 3600 rpm air cooled units.I recommend installing generator on a stand.
Date published: 2023-06-13
Rated 4 out of 5 by from Upgraded Replacement I had a Generac 25kw liquid-cooled that has given excellent service for 16+ years. I had some major engine problems that made repairs not cost effective to perform. I chose to replace with the newer 27kw liquid-cooled. Much quieter and fuel efficient and a little extra power to boot. Swap out was really easy and the new one went to work right away.
Date published: 2023-05-09
Rated 5 out of 5 by from Does the job well. I installed this unit myself. The only thing I noticed was the wire nuts at the 125amp breaker from the generator head were only finger tight. Seemed wrong so I tightened them down. I am pleased with the WIFI Mobile Link. The Exercise Mode at a reduced RPM was impressive. When I tested the unit under load, it was as quiet as you would want your generator to be.
Date published: 2023-04-06
Rated 4 out of 5 by from It would have been 5 star except for... This is the second Generac standby generator that I have owned in the last 23 years. The First 20 kw has lasted over 20 years and is still running great. This new 27kw is much, much quieter and the electronic features that are included with this new unit are fantastic and in keeping with the current technology. The water cooled engine in this unit is basically the same as my old unit...very good engine, LP Gas. The only issue that I have with Generac is that their Technical support does not want to deal with owner/installers. They want to make all customers go to outside independent contractors to install your Generac unit. The only reason that I even had to contact tech support was because of a weakness in their installation manual, not a big thing, but I had to insist on getting tech support as an owner/installer of my own equipment. Had there been a willingness to support the owner/installer without the belligerent attitude, this would have been a 5 star review. Generac needs to change its customer, owner/installer attitude. This Generator runs perfectly and the software mobile link connection does exactly as it should.
Date published: 2023-03-17
Rated 5 out of 5 by from This product appears to be a well designed, quality product that This product appears to be a well designed, quality product that when tested performed as designed though did require next day service to function as designed due to improper installation and set up (link was not established resulting in red light and thus shutdown. As a medical necessity customer this product is critical to me. The quality and functionality of this product merits quality installation of which I did NOT receive and have not received mediation as of this date (cable trenching, outside box, pad holes underneath, yard repair, electrical short or arc which shorted out my cable television box).
Date published: 2023-02-11
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27kW-RG027-QS is rated 4.6 out of 5 by 126.
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Protector Series Accessories

Maximize your investment and maintain your Generac home standby generator with a variety of accessories.