What is the Kohler 12RES-QS11 standby generator used for?

The Kohler 12RES-QS11 is designed to provide reliable backup power for residential homes and light commercial properties during utility outages. It supports essential circuits such as lighting, HVAC, refrigerators, and security systems.

How much power does the Kohler 12RES-QS11 generate?

This standby generator delivers 12,000 watts (12kW) of continuous power, making it suitable for running multiple essential household appliances simultaneously.

Does the Kohler 12RES-QS11 turn on automatically during a power outage?

Yes, when paired with a compatible automatic transfer switch, the generator detects a power outage and restores electricity automatically within approximately 10 seconds.

What fuel types does the Kohler 12RES-QS11 support?

The generator operates on either natural gas or propane, offering flexible fuel options based on availability and installation requirements.

How loud is the Kohler 12RES-QS11 during operation?

The generator operates quietly at approximately 65 dB(A) measured at 23 feet, making it suitable for residential neighborhoods.

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Kohler 12RES, 1 PH, 240V, cUL/US, CSA (No OnCue Plus on ADC Controller) 12RES-QS11

Kohler 12RES-QS11 12kW Standby Generator

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SKU PES-PS-GEN-0335

Kohler 12RES, 1 PH, 240V, cUL/US, CSA (No OnCue Plus on ADC Controller) 12RES-QS11

OEM Authorized Dealer BABA Compliant Full OEM Warranty 7-10 Business Day Delivery

$5,446.00 USD

$ $5,446.00 USD

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In Stock

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9+ sold

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Specifications

Voltage 240V

What is your return policy?

Returns are free in the first 30 days with no restocking or processing fees, although the customer may be responsible for paying return shipping. See our complete return policy on our Shipping, Delivery, and Returns page linked in the footer of this website.

What’s covered by your return policy?

Our returns policy covers all purchases made through Portlandia Electric Supply. For warranty issues, as authorized distributors, we honor the full manufacturer warranty of ALL the brands on our website. See our complete returns and warranty policies on our Shipping, Deliver, and Returns page.

How long will it take to receive my order?

All orders are processed within 72 hours and you can expect delivery on most orders within 5-7 business days. You will receive access to our customer portal after ordering, where it is easy to track all your shipments. See our Shipping, Delivery and Returns page for more details.

What are your financing and payment options?

We offer several ways to pay to make getting your solar kit simple:

Credit Card: if the purchase is greater than your card’s limit, you can split the cost onto multiple cards as well as Paypal, financing through Affirm, and ACH/bank transfer

You can arrange financing during the checkout process, or scroll further down this page for more details. Please note, if you'd like to finance your order, you can do so instantly, right at checkout.

How does your Lifetime Customer Support work?

Our legendary lifetime customer support has helped make us the #1 online solar retailer! We have a dedicated team of solar professionals standing by to help you navigate the world of solar with ease. From selecting the perfect solar kit to installation and beyond, we provide support and expertise at every step of the journey.If you need help with ordering, shipping, troubleshooting, expanding your system, warranty issues, or anything else you have questions about for as long as you own your Portlandia Electric Supply equipment, we’ve got you covered: we’re always only a phone call or email away.

Kohler 12RES-QS11 12kW Air-Cooled Standby Generator

The Kohler 12RES-QS11 12kW Standby Generator provides dependable backup power for residential and light commercial use. Equipped with a powerful Kohler Command PRO engine, it automatically restores electricity within seconds of an outage. Designed for reliability and efficiency, the 12RES-QS11 ensures quiet operation, easy maintenance, and superior long-term performance even in extreme conditions.

Product Features

Reliable 12kW Power Output

This generator provides 12,000 watts of continuous backup power to support essential household circuits and small commercial loads.

Automatic Power Restoration

The Kohler 12RES-QS11 works seamlessly with automatic transfer switches to detect outages and restore power in as little as 10 seconds.

Quiet and Durable Design

Its corrosion-resistant, sound-attenuated enclosure keeps noise levels low (as quiet as 65 dB) while ensuring longevity in outdoor environments.

High-Performance Kohler Engine

The heavy-duty Kohler Command PRO engine provides reliable power with advanced voltage regulation and efficient fuel consumption on natural gas or propane.

Remote Monitoring Capability

Compatible with OnCue® Plus generator management software, users can monitor performance and maintenance schedules remotely for convenience and peace of mind.

How It Works

The Kohler 12RES-QS11 automatically senses utility power loss and activates to supply electricity within seconds. Once grid power is restored, it automatically shuts off and returns to standby mode, ready for the next outage.

Automatic Operation

Seamless transfer between utility and generator power ensures your home stays powered without manual intervention.

Fuel Efficiency and Safety

Running on natural gas or propane, the 12RES-QS11 ensures clean operation with advanced electronic controls that maintain safe and efficient power delivery.

Specifications

Rated Power Output	12kW
Voltage	120/240V Single Phase
Fuel Type	Natural Gas / Propane
Engine	Kohler Command PRO OHV
Noise Level	65 dB(A) @ 23 ft
Frequency	60 Hz
Transfer Switch Compatibility	200A SE Automatic
Enclosure	Aluminum, Sound-Attenuated
Dimensions	48 x 26.2 x 29
Weight	410
Manufacturer	Kohler Power Systems
Model Number	12RES-QS11

What is your return policy?

What’s covered by your return policy?

How long will it take to receive my order?

What are your financing and payment options?

We offer several ways to pay to make getting your solar kit simple:

Credit Card: if the purchase is greater than your card’s limit, you can split the cost onto multiple cards as well as Paypal, financing through Affirm, and ACH/bank transfer

You can arrange financing during the checkout process, or scroll further down this page for more details. Please note, if you'd like to finance your order, you can do so instantly, right at checkout.

How does your Lifetime Customer Support work?

Kohler 12RES-QS11 12kW Air-Cooled Standby Generator

Product Features

Reliable 12kW Power Output

This generator provides 12,000 watts of continuous backup power to support essential household circuits and small commercial loads.

Automatic Power Restoration

The Kohler 12RES-QS11 works seamlessly with automatic transfer switches to detect outages and restore power in as little as 10 seconds.

Quiet and Durable Design

Its corrosion-resistant, sound-attenuated enclosure keeps noise levels low (as quiet as 65 dB) while ensuring longevity in outdoor environments.

High-Performance Kohler Engine

The heavy-duty Kohler Command PRO engine provides reliable power with advanced voltage regulation and efficient fuel consumption on natural gas or propane.

Remote Monitoring Capability

Compatible with OnCue® Plus generator management software, users can monitor performance and maintenance schedules remotely for convenience and peace of mind.

How It Works

Automatic Operation

Seamless transfer between utility and generator power ensures your home stays powered without manual intervention.

Fuel Efficiency and Safety

Running on natural gas or propane, the 12RES-QS11 ensures clean operation with advanced electronic controls that maintain safe and efficient power delivery.

Specifications

Rated Power Output	12kW
Voltage	120/240V Single Phase
Fuel Type	Natural Gas / Propane
Engine	Kohler Command PRO OHV
Noise Level	65 dB(A) @ 23 ft
Frequency	60 Hz
Transfer Switch Compatibility	200A SE Automatic
Enclosure	Aluminum, Sound-Attenuated
Dimensions	48 x 26.2 x 29
Weight	410
Manufacturer	Kohler Power Systems
Model Number	12RES-QS11

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