Gaseous Generators

Longer Runtimes and “Green” Fuel: Natural Gas Generators

Natural gas is becoming the preferred solution in many applications as it provides much longer runtimes, the permitting is easier, and units with natural gas have 90% fewer emissions compared to diesel generators. In addition, there is virtually no maintenance associated with natural gas generators, while diesel fuel requires conditioning annually.

Another advantage is that more AHJ’s are recognizing natural gas generators for sole off-site fuel choices because these generators rely on a strong underground pipeline network that is rarely impacted by weather. 

Generac is the expert in natural gas generators: with two Frost and Sullivan Awards and a recent CSE award for our 500 kW generators. Tested, trusted, and a bit disruptive: natural gas generators.

Select Power Range

Sort Order


Protector QS Series 22kW Gaseous Generator

A convenient and compact 22 kW generator, backed with a rugged 2.4L engine that can run on natural gas or LP.

  • Engine Size: Generac 2.4L
  • Footprint:
    62.2" x 30.6"

Product Details

Protector QS Series 27kW Gaseous Generator

Strength from durable 2.4L engines providing 27 kWs of quality power.

  • Engine Size: Generac 2.4L
  • Footprint:
    62.2" x 30.6"

Product Details

Protector QS Series 32kW Gaseous Generator

Best-in-class power with 32 kWs from our substantial 2.4L in-house built engines.

  • Engine Size: Generac 2.4L
  • Footprint:
    76.8" x 35.0"

Product Details

Protector QS Series 38kW Gaseous Generator

Smart and affordable 2.4L gaseous engines supply 38 kWs of proven power.

  • Engine Size: Generac 2.4L
  • Footprint:
    76.8" x 35.0"

Product Details

Protector QS Series 48kW Gaseous Generator

Ideal for light commercial applications, our 48 kW gaseous generators are supported by durable 5.4L in-house built engines.

  • Engine Size: Generac 5.4L
  • Footprint:
    76.8" x 35.0"

Product Details

Protector Series 36kW Gaseous Generator

Dependable power from a robust 2.4L engine delivering 36 kWs of pure power.

  • Engine Size: Generac 2.4L
  • Footprint:
    76.8" x 35.0"

Product Details

Protector Series 45kW Gaseous Generator

Generac engines are built for endurance, so our 2.4L engines will give you the reliability you need in our compact 45 kW gaseous generators.

  • Engine Size: Generac 2.4L
  • Footprint:
    76.8" x 35.0"

Product Details

Protector Series 60kW Gaseous Generator

Trust Generac with factory-built 2.4L engines delivering 60 kWs. We are now making backup power affordable.

  • Engine Size: Generac 2.4L
  • Footprint:
    76.8" x 35.0"

Product Details

Commercial Series 70kW Gaseous Generator

Backup your power supply with our 70 kW standby generators featuring reliable natural gas- or propane-powered engines.

  • Engine Size: Generac 6.8L
  • Footprint:
    96.5" x 37.0"

Product Details

Commercial Series 100kW Gaseous Generator

Strong and efficient natural gas or LP 6.8L in-house built engines power our reliable 100 kW generators.

  • Engine Size: Generac 6.8L
  • Footprint:
    116" x 37.0"

Product Details

Commercial Series 130kW Gaseous Generator

130 kWs of natural gas or propane power make our standby generators a perfect fit to backup your facility or business.

  • Engine Size: Generac 6.8L
  • Footprint:
    116" x 37.0"

Product Details

Commercial Series 150kW Gaseous Generator

Generac's substantial, factory-built 6.8L engines deliver 150 kWs, ideal for many light commercial industries.

  • Engine Size: Generac 6.8L
  • Footprint:
    116" x 37.0"

Product Details