If you have a large home, high electrical consumption, or just want maximum backup power, a Generac 26kW Home Standby Generator gets the job done. As Generac’s most powerful air-cooled residential generator, the 26kW delivers substantial power while being more affordable and compact than liquid-cooled alternatives.

 

When you need more capacity than the 24kW model, the 26kW provides it along with improved power availability for when appliances start, helping large appliances like air conditioners and heat pumps turn on reliably.

 

We’ll walk through some of its specs to help you decide whether the Generac 26kW is right for you.

 

Whatever model of generator you have now or end up with, we can service, repair, or install it for you. We serve all of the Ottawa Valley. Contact Powers Servicing today or read on to find out more.

 

Power Output: 26kW

This number reflects the maximum continuous electrical output the generator can provide. A 26kW generator offers substantial power, making it suitable for larger homes or those with high energy demands.

 

The generator is designed to handle the challenging moment when large appliances start up, and motors need a surge of power that can be 3-5 times their normal running power. Its specially designed alternator delivers 230LRA or 55.2kVA of starting power, which means your air conditioner, heat pump, and other major appliances can start reliably even when several try to kick on at once.

 

It can run lights, refrigerators, HVAC, and multiple outlets, along with larger appliances like electric ranges, water heaters, and high-demand devices like pool pumps or home theaters simultaneously.

 

The increased power capacity over smaller generators helps you live more normally during extended outages with minimal compromise.

 

Fuel Type: Liquid Propane or Natural Gas

The generator can run on either liquid propane or natural gas. Liquid propane is stored in tanks, while natural gas is supplied directly from your gas line. Each has its own costs and benefits.

 

Propane is typically more expensive than natural gas, but has a higher energy density, allowing the generator to reach its full 26kW output. A benefit of propane is its independence from utility services. If you already have propane tanks or want complete off-the-grid freedom, liquid propane might be the best option for you.

 

Natural gas has a slightly lower energy density, causing the generator to run at closer to 22.5kW output, depending on the fuel line size and pressure provided to the generator. Natural gas is usually more convenient, because there are no tanks and nothing to fill up, as it comes from a continuous supply.

 

However, natural gas supplies can vary, potentially impacting performance. Gas is typically reliable during power outages caused by snow storms or high winds, but the gas supply can be affected by natural disasters or for maintenance reasons.

 

Battery Type: Group 26R 540 CCA Minimum or Group 35AGM 650 CCA Minimum

These battery types are used throughout Generac’s residential generator lineup.

 

“CCA” stands for Cold Cranking Amps, meaning the battery’s ability to deliver a certain amount of current at 0°F for 30 seconds without dropping below a specified voltage. This is important for starting the generator reliably in cold weather.

 

“AGM” stands for Absorbed Glass Mat. These batteries use a special fiberglass mat to hold the electrolyte in place. The design also allows for faster recharging, deeper discharge cycles without damage, and better performance in extreme temperatures compared to traditional flooded batteries. AGM batteries are often preferred for generators operating in colder climates or for users seeking higher performance and less maintenance.

 

Group 26R 540 CCA Minimum is a more compact, less expensive option, similar to a car battery. It can function reliably in moderately cold temperatures, typically down to around 0°F to -10°F, but may struggle in extreme cold.

 

Group 35AGM 650 CCA Minimum provides higher cold cranking amps and performs better in very cold conditions, typically maintaining reliable performance in temperatures as low as -20°F to -30°F.

 

Engine Type: G-Force 1000

This engine is built specifically for standby generators and powers multiple models in Generac’s lineup.

 

It has a V-Twin overhead valve design that provides increased power and efficiency, compared to simpler, splash-lubricated, air-cooled engines used in lower-cost generators. It uses full pressure lubrication, which delivers oil consistently around the engine, helping it run smoothly and reducing wear, resulting in less frequent maintenance.

 

The G-Force 1000 is designed to perform reliably during extended power outages.

 

The 26kW’s higher output compared to other generators that use the same engine comes from other components being optimized for greater power generation.

 

Weight: 518 lb

At 518 lb, the 26kW Generac generator weighs more than lower-capacity models, though its weight is typical for higher-capacity residential standby generators. To function reliably, the generator needs a level foundation, like a concrete or prefabricated composite pad, capable of supporting its weight and preventing any shifting or settling over time.

 

Other Features

True Power™ Technology reduces total harmonic distortion to less than 5%, which is considered the threshold for “clean” power that’s safe for sensitive electronics. In a generator, low total harmonic distortion (THD) means the electricity is “smooth” and stable, which is important for sensitive devices like computers, TVs, or medical equipment. If the THD is too high, the power can be “jumpy” and cause those devices to overheat, malfunction, or get damaged.

 

Because this generator has low total harmonic distortion, it’s safer to use on sensitive devices—like computers—than electricity from older designs or budget generators.

 

The Quiet-Test™ Self-Test Mode operates at a reduced RPM compared to normal operation. This lower RPM can reduce noise levels, bringing the generator’s sound output down to about 57 decibels, compared to the 67 decibels made during normal operation.

 

Powder-coated aluminum for corrosion resistance. The RhinoCoat™ Enclosure is built to outlast harsh weather. Low-cost generators often use plastic housings or steel enclosures that are less durable or rust over time.

 

The Evolution™ Controller Multilingual LCD display is a user-friendly control system for monitoring battery status and scheduling maintenance. You’ll never have to guess what a hard-to-read gauge might be saying.

 

Wi-Fi enabled Mobile Link™ Remote Monitoring lets you access the generator’s status from your phone, computer, or tablet so you’re always up to date. Knowing exactly how your generator is operating helps to give peace of mind wherever you might be.

 

Finally, Generac’s Customer Support Team is always there, on call 24/7/365 from their headquarters in Wisconsin, to answer any questions you may have.

 

Generac 26kW Home Standby Generator: Frequently Asked Questions

How do I decide between 24kW and 26kW? Is 2kW enough to matter?

Both are excellent generators that can power most homes comfortably. The 26kW provides additional capacity if you have higher electrical demands, multiple large appliances, or if you’re planning to add electric vehicles or heat pumps.

 

The 26kW uses the same G-Force 1000 engine as the 24kW but pairs it with a more powerful alternator and other components, giving you 2kW more continuous power and better handling of appliance startup surges. When your air conditioner, heat pump, or other large appliances kick on and need 3-5 times their normal running power, the 26kW’s alternator delivers 230LRA or 55.2kVA of starting power so your appliances can start reliably even when several try to kick on at once.

 

Yes, an extra 2kW can matter, but only if you actually need the energy. If the 24kW already handles your peak usage comfortably, the upgrade may not be worth it. However, if you’re close to the 24kW’s limits or planning to add high-draw appliances, the extra capacity and enhanced starting power can make a real difference.

 

We’re happy to help you calculate your specific power needs to determine which size gives you the right balance of capacity and value.

 

How do I know the generator will pass local regulations and codes?

The Generac 26kW generator is designed to be EPA and CARB (California Air Resources Board) compliant, so you can use it in areas with strict emissions requirements. It’s also ETL and UL 2200 certified, meaning it has passed rigorous safety standards.

 

Can the 26kW Generac generator handle running all of my major appliances at once?

The 26kW generator can run most major appliances simultaneously in a large home (typically ranging from 2,500 to 5,500 square feet). It can handle high-wattage devices like central air conditioning units, electric ranges, electric water heaters, multiple refrigerators, and other appliances at the same time. With its higher power capacity, it provides more flexibility to power more devices simultaneously compared to smaller generators.

 

However, before buying any generator, it’s worth determining your total power requirements first, to make sure the generator can handle its intended use.

 

Not sure what is best? We specialize in backup generators and will help you size the generator to get the kilowatts just right—you don’t want to be underpowered, but you don’t want to overpay either. Contact us, and we can help you find the ideal generator size based on your specific power needs.

 

Do you have any payment plans?

Yes, we offer financing. Please contact us for more information.

 

From the time I first contact you, how long will it take to have the generator installed?

Typically, the installation takes between 4-6 weeks from confirmed purchase to installation. This includes an initial consultation, site evaluation, getting any necessary permits, and scheduling the installation. Installation times can vary depending on your region and the time of year. For a more precise timeline, contact us to go over the details specific to your location and situation.

 

How often do I need to service the generator, and will it be expensive?

Backup generators like the 26kW Generac require an initial 25-hour break-in service when new. After that, they need servicing once a year or after every 100 hours of use, whichever comes first. Regular maintenance includes oil and filter changes, air filter replacements, spark plug replacement, valve adjustments, cleaning and waxing of the unit, and testing the generator. You can handle this maintenance yourself or we’re happy to take care of it for you. The cost of servicing can vary based on your location and other factors.

 

What happens if there’s a problem with the generator after installation? Is there a warranty?

Generac’s 26kW generators come with a 5-year limited warranty that covers parts and labor for repairs due to defects or problems under normal use. If an issue arises after installation, you can contact us to assess and repair the unit. Regular maintenance is required to keep the warranty valid.

 

Can I monitor the generator remotely, especially if I’m not home when the power goes out?

Yes! The 26kW Generac includes Wi-Fi enabled Mobile Link™ remote monitoring at no extra cost. This lets you monitor the status of your generator from anywhere using a smartphone, tablet, or computer. You can check if the generator is running, review maintenance schedules, and receive alerts about issues or required maintenance.

 

If the power goes out, could I use the generator to charge my electric vehicle?

Yes, you can use a 26kW generator to charge your electric vehicle (EV). With its higher power capacity, the 26 kW generator can handle the demands of an EV charger, which typically requires around 7-10 kW, while still powering other essential appliances in your home. This means you can charge your EV without significantly compromising other household power needs. Charging times may be longer compared to using grid power, and it’s still important to verify the generator’s capacity with the specific requirements of your EV charger, and other appliances you intend to run simultaneously.

 

What type of fuel does the generator use?

Either liquid propane stored in tanks, or natural gas from your home’s gas line.

Ready to protect your home with reliable power? Contact Powers Servicing today to get started.