Natural Gas.
Power on Demand.

Defining solutions for a wide range of energy needs.

DG350-DG500 natural gas generator with commercial building in the background
DG350-DG500 natural gas generator with commercial building in the background

Cat® DG350-DG500 Natural Gas Generators Powered by the CG18 Engine

Caterpillar now offers gas generator sets from 350 kW to 500 kW, bringing the benefits of lean-burn natural gas generation to customers.

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What are the most common applications
for a Cat gas generator set?

machine shop, farm, county safety building, and retail space
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  • Small- and medium-sized industrial and manufacturing applications
  • Agricultural facilities
  • Municipal infrastructure
  • Commercial enterprises
  • Office buildings

What are the benefits of these
new models?

DG350 generator set model view
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  • A solution that fits your site, thanks to the generator's small and compact footprint.
  • Meets emissions regulations without aftertreatment resulting in cost savings and lower emissions.
  • Ensures power for standby and emergency applications plus allows participation in demand-response programs which generate additional income.
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Designed to Support Demand Response

What is demand response?

When electricity demand soars (and so do prices), generating your own power can be expensive. With your generator set, you can transfer some or all of a facility’s load from the grid to your own asset.

electricity price versus supply graph
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What are the financial benefits?

Cat® DG350-DG500 natural gas generators are designed for demand-response programs, which offer potential monetary benefits. Demand-response programs offered by utilities compensate large energy users for producing extra power during high consumption, such as during extremely hot or cold weather or after work and school hours. Utilities pay users in demand-response programs for generating extra power during peak consumption times and exporting it to the grid.

graph showing sources of energy
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Why is demand response important?

The electrification of society is adding significant increases in energy demand. The traditional model—large, centralized fossil fuel power plants—isn’t fast or flexible enough to keep up with demand. As the threat of utility power outages increases for many areas of the U.S., demand response participants can reduce demand on the utility supply in the event of a utility grid emergency.

Demand-response programs combined with natural gas generators could be the perfect combination for your energy needs.

charts and graphs representing energy market programs
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Helping Our Customers. Every Day.

female Caterpillar sustainability manager
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The suite of different power solutions available to me can help achieve my energy and emissions goals.

Sustainability Manager

Senior male Cat machine owner/operator
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This gives me a great product with the added reliability and support provided by the Cat dealer network.

Owner/Operator

Facility manager, young female Cat construction manager
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The potential financial benefits of using my product in demand response are a huge plus for me!

Facility Manager

Products

  • Frequency
    60 Hz
    60 Hz
    Natural Gas Rating
    350 ekW
    350 ekW
    Emissions/Fuel Strategy
    U.S. EPA Certified for Stationary Emergency Application and Non-Emergency Applications
    U.S. EPA Certified for Stationary Emergency Application and Non-Emergency Applications

    DG350 (3-Phase)

    The Cat® spark-ignited lean burn generator for stationary standby and demand response applications offer reliable power with best in class fuel efficiency, lower footprint and cleaner exhausts. The abilitity to operate even at very low fuel inlet pressures makes it best suited for a range of applications

    Learn More
    View
  • Frequency
    60 Hz
    60 Hz
    Natural Gas Rating
    400 ekW
    400 ekW
    Emissions/Fuel Strategy
    U.S. EPA Certified for Stationary Emergency Application and Non-Emergency Applications
    U.S. EPA Certified for Stationary Emergency Application and Non-Emergency Applications

    DG400 (3-Phase)

    The Cat® spark-ignited lean burn generator for stationary standby, demand response and limited time power (LTP) applications offer reliable power with best in class fuel efficiency, lower footprint and cleaner exhausts. The abilitity to operate even at very low fuel inlet pressures makes it best suited for a range of applications

    Learn More
    View
  • Frequency
    60 Hz
    60 Hz
    Natural Gas Rating
    450 ekW
    450 ekW
    Emissions/Fuel Strategy
    U.S. EPA Certified for Stationary Emergency Application and Non-Emergency Applications
    U.S. EPA Certified for Stationary Emergency Application and Non-Emergency Applications

    DG450 (3-Phase)

    The Cat® spark-ignited lean burn generator for stationary standby, demand response and limited time power (LTP) applications offer reliable power with best in class fuel efficiency, lower footprint and cleaner exhausts. The abilitity to operate even at very low fuel inlet pressures makes it best suited for a range of applications

    Learn More
    View
  • Frequency
    60 Hz
    60 Hz
    Natural Gas Rating
    500 ekW
    500 ekW
    Emissions/Fuel Strategy
    U.S. EPA Certified for Stationary Emergency and Non-Emergency Application
    U.S. EPA Certified for Stationary Emergency and Non-Emergency Application

    DG500 (3-Phase)

    The Cat® spark-ignited lean burn generator for stationary standby, demand response and limited time power (LTP) applications offer reliable power with best in class fuel efficiency, lower footprint and cleaner exhausts. The abilitity to operate even at very low fuel inlet pressures makes it best suited for a range of applications

    Learn More
    View

Size & Configure Your Generator Now

Need a smaller gas generator set? 

Gas generator sets from 100 kW are available.

View Products

Your Complete Solution

Maximize Success with Cat AMP

The Cat Active Management Platform (AMP), a proven distributed energy resource management system (DERMS) platform, helps customers monitor, manage, and monetize gaseous generator sets and other Cat power solutions. The platform monitors patterns from the grid and client facilities, analyzes opportunities in energy markets, and then dispatches DERs to maximize return and monetize results without disrupting normal business operations.

Get the details
Cat Active Management Platform screen showing a price graph
Cat Active Management Platform screen showing a price graph

Improved Control with Cat Connect

Monitor operations remotely with advanced Cat Connect hardware. The connectivity enables operators to track and manage genset operation through an easy-to-use web interface or mobile app, flag potential problems, perform remote troubleshooting, manage operational expenses, and more.

Find Out More
two men working on a genset control panel
two men working on a genset control panel

EFFICIENT WITH LOWER EMISSIONS

In addition to running on lower emission producing natural gas, lean-burn engines have a lower combustion temperature, sharply reducing NOx and engine-out emissions. The unit will facilitate National Fire Protection Agency (NFPA) 110 Type 10 requirements for emergency power systems to support life safety loads.

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Apartment complex with Cat DG400 in foreground
Apartment complex with Cat DG400 in foreground

Walk-Around Video

Learn more about the new range of gas products with a look up close at a unit’s CG18 engine, EMCP controller, radiator, fuel system, enclosure, telematics device, and other features.

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What to Expect From Your Cat Dealer

Click on the button to fill out a short form. An experienced Cat dealer will contact you to discuss a custom solution and pricing options that best suit your needs. 

Contact a Dealer
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Contact a Cat Dealer

 

Diesel Solutions

Caterpillar offers a full suite of diesel generator sets from 20 kW to 4000 kW.

VIEW PRODUCTS NOW
Diesel generators at Children's Hospital New Orleans
Diesel generators at Children's Hospital New Orleans

Webinar – FUELING YOUR SOLUTIONS: THE RIGHT GENSET FOR YOUR SITE

Times change, and so do generator set and fuel choices. Make sure you are up to date on the latest gas and diesel-fueled gensets available as well as assets equipped to run on both fuels.
Continuing education credits are available.

Learn More
FUELING YOUR SOLUTIONS: THE RIGHT GENSET FOR YOUR SITE
FUELING YOUR SOLUTIONS: THE RIGHT GENSET FOR YOUR SITE

Related Industries

 

 

White Paper

Lean Burn Gas Generator Sets

The use of lean burn natural gas engines has been proven to meet important criteria for fuel efficiency, emissions performance, air regulations, reliablity, durability, and power density.

View White Paper
Lean Burn Gas Generator Sets
Lean Burn Gas Generator Sets

Press Release

New High-Efficiency Natural-Gas Generator Sets Ideal for Small- to Medium-Sized Standby and Demand Response Applications

Caterpillar Inc. announces four new 60-Hz power nodes ranging from 350 kW to 500 kW that are factory certified by the U.S. Environmental Protection Agency (EPA) for use in non-emergency applications.

View Press Release
Natural-Gas Generator Set model view
Natural-Gas Generator Set model view

Cat Connect for Electric Power

Know how your operation is running from anywhere. Cat Connect gives you the information you need to make well-informed, timely decisions.

Learn More
cat connect
cat connect

Brochures and Testimonials

We have an Information Library of product literature, white papers, customer stories, and more. Find what you’re looking for.

View library
industry information
industry information

Generator Set Sizing Calculators

Caterpillar Electric Power now has two tools available for sizing gensets in any application. 

Size Now
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specsizer

Dealer Locator

Your Cat dealer is committed to maximizing your success, helping you get the most out of your operations with site-level solutions, service and support.

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dealers

Electric Power Newsletter

Get the latest information on Cat products and industry topics focused on helping you get the most from your investment. 

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ep newsletter

Electric Power News

Read the latest electric power news and articles relating to Cat electric power products by people in the know, on topics that matter to your business.  

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ep news