24kW to 26kW Generators
Generac, Briggs & Stratton, and Kohler have the most powerful air-cooled standby generators on the market. The 26kW Generators put out 30 percent more power than competing 20kW models. Only a few years ago, 20kW generators led the industry. These powerful generators provide larger homes and small businesses with the backup power they need at a more affordable price compared to liquid-cooled models with a similar capacity. These air-cooled generators take up half the space of larger and more complex liquid cooled generators and install with as little as 18 inches between the home and generator—subject to local building codes.
The generators cool themselves with air blown over the alternator and engine by a fan. Forced air is less complex than a liquid-cooled generator with a cooling system similar to a car that pumps coolant through the engine and radiator.
Briggs and Stratton placed their headquarters in Milwaukee Wisconsin, Generac in Waukesha, just outside of Milwaukee, and Kohler in Kohler Wisconsin. All three companies build their generators in the United States with USA made parts and foreign-built parts.
*Standby Generator Installation Requires an Automatic Transfer Switch. Models sold without a transfer switch require a compatible Automatic Transfer Switch Installation.
⚡24kW Generator—26kW Generator for Sale
Generac 24kW Standby Generator
The Generac 24kW Generator is part of the company’s best-selling Guardian Series Home Standby Generator Line. Following the introduction of the 22 Kilowatt, the 24kW generator became the largest and most powerful generator in the air-cooled class.
Generac’s 24 kW Guardian produces up to 24kW while running on LP Propane and 21kW on Natural Gas.
In Quiet Test exercise mode, the 24kW makes just 57 dBA noise. Normal operation noise levels are about 67 dBA.
The Generac 24kW has applications in the home standby and commercial backup generator markets. A smaller footprint than liquid-cooled models makes it ideal for small yards or tight spaces at commercial locations.
Available as the generator only or with a 200-Amp Automatic Transfer Switch.
The 200-Amp service rated ATS controls up to four air conditioners without additional hardware. Optional Smart Management Modules add up to 8 managed 240-volt appliances, including electric water heaters, pumps, ranges, and more. The transfer switch has NEMA 3R enclosure for indoor or outdoor installation.
Generac 24kW Generator with 200-Amp Automatic Transfer Switch
Generac 24 kW Generator — ATS not included.
Briggs and Stratton 26kW Generator
In August 2021, the Briggs and Stratton 26kW Generator announcement brought the next step up in air-cooled standby power. The newest, most powerful generator on the market stands at the top of the Briggs & Stratton PowerProtect Standby Generator Line. Briggs & Stratton powers the 26kW with their 993cc OHV Commercial Vanguard Engine.
Briggs and Stratton’s 26kW Generator produces up to 26kW running on LP Propane and 24kW on Natural Gas.
Under a normal operating load, the generator makes just 65 dBA noise and less than 63 dBA at low idle.
Briggs and Stratton specifies the generator as a home standby or commercial standby generator product. It’s smaller and lighter than competing air-cooled models and fits tight locations and small yards with ease.
The 26kW Briggs and Stratton generator comes as a stand-alone model, with a 200-Amp service rated automatic transfer switch, or with dual 200-Amp Split 400-Amp Automatic Transfer Switches.
Add Symphony II Power Management with low-voltage and 240-volt power management modules.
Briggs and Stratton 26kW Generator with 200-Amp Automatic Transfer Switch
Briggs and Stratton 26kW Generator with Dual 200-Amp Split 400 Amp Automatic Transfer Switch
Briggs and Stratton 26kW Generator without Automatic Transfer Switch
Generac 26kW Guardian Generator
The latest model in the Generac Guardian Line, the Generac 26kW generator takes power to a new level. With the new 26kW Guardian Series leader, Generac retired their 20-kilowatt model. Homeowners and businesses still have three choices of 22, 24, and 26kW generators.
Generac’s 26kW produces 26kW running on LP Propane and 22.5kW while operating on Natural Gas. The generator makes 58 dBA noise in Quiet Test mode and 68 dBA under full load.
26kW Generators from Generac have home standby and commercial standby applications in backup power during outages. It takes up the same small footprint as other Generac Guardian models and can install just 18 inches from the building, subject to local codes. Perfect for tight lot lines, small commercial spaces, and backyards.
One model comes as a bundle with the automatic transfer switch, the other does not include a transfer switch. The transfer switch has a built-in Air Conditioner Control Module for power management. Add up to 8 other prioritized 240-volt appliances with smart management modules.
Smart Grid Ready—The Automatic Transfer Switch can send power to the grid during periods of high demand.
Generac 26kW Generator with 200-Amp Service Rated Automatic Transfer Switch 7291
Generac 26kW Generator without 200-Amp Transfer Switch
Kohler 26kW Generator
Like the competition, the Kohler 26kW Generator comes with or without an automatic transfer switch. Powered by a heavy-duty Command Pro CH1006 engine with hydraulic lifters, the generator produces 26kW on propane and 24kW on Natural Gas. It has the same footprint as their 20kW and 14kW.
The new Kohler line introduces color to the landscape with 10 new colors and 3 camouflage patterns.
Kohler standby generators are for use in a stationary standby application for residential or commercial backup power at locations with a reliable utility power source.
The Kohler 26kW Generator provides exceptional motor starting capability at 39kVA.
UL 2200 Listed. Certified for sale in all 50 states. Meets U.S. EPA and California Air Quality requirements. Approved by the Massachusetts Board of Registration of Plumbers and Gas Fitters.
Kohler 26kW Generator + 200 Amp Automatic Transfer Switch
Kohler 26kW Generator (Transfer Switch Sold Separately)
Kohler 26kW Generator Exclusive Colors (Transfer Switch Sold Separately)
Updated February 15, 2025