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150 kW Generator

KG150R Single Phase or Three Phase, Natural Gas|LPG

Starting at $32,891.00 MSRP*
*Starting price in US dollars. Does not include installation, automatic transfer switch or accessories or costs to export outside the US.


Reliable power for very large residential or small business needs. Built to weather the storms, our largest natural gas/liquid propane generators with industrial-grade engines keep your family comfortable and your business running when a utility failure or storm knocks out power.

  • Powerful.
    In just 10 seconds, this KOHLER generator automatically powers everything, keeping you connected to the things you love to do.*
  • Smart.
    You get steady, high-quality power that protects sophisticated electronics from damage related to low-quality power sources.
  • Premium warranty.
    We've got you covered with 5-year, 2,000-hour protection.
  • Advanced.
    The APM402 controller with patented software is compatible with optional accessories that let you monitor your system remotely through your PC.
  • Exterior options.
    Choose the optional corrosion-resistant aluminum enclosure or standard steel enclosure.


  • A popular choice for industrial applications
  • Excellent peak motor-starting capacity: KG150R: 440kVA at 240V
  • Premium power quality delivers exceptional digital voltage and frequency regulation along with extremely low levels of harmonic distortion to protect sophisticated electronics
  • Powered by Kohler KG10V08T industrial-grade engine with hydraulic valve lifters to eliminate need for lengthy break-in periods and expensive valve adjustments; operation speed 1800 rpm


  • The APM402 controller provides advanced control, system monitoring and system diagnostics with remote-monitoring capability
  • Quiet, neighborhood-friendly operation with sound similar to a typical central air conditioner
  • Standard steel enclosure with automotive-grade paint
  • Optional corrosion-resistant aluminum enclosure

*Based on generator and load size.

Rated kW LP 140 kW
Rated kW NG 140 kW
Amps LP 584 amps
Amps NG 584 amps
Peak Motor Starting kVA @240 V 440 kVa
Alternator Note All information shown is for 1 Phase 60 Hz generator with the largest alternator option available.
Displacement 10.3 L (632 cu. in.)
Horsepower NG 239 HP, LP 262 HP, Dual fuel 329 HP
Enclosure Material Steel|Aluminum
Sound Output During Weekly Exercise 59 dB(A)
Sound Output During Full-speed Operation 59 dB(A)
Response Time 10 seconds
Warranty Premium five-year limited warranty
Country of Origin US
Certifications/Listings CSA|EPA
Automatic Transfer Switch Included Sold Separately
Remote Monitoring Available Sold Separately
Off Grid / Utility Backup Utility Backup
Weight 4360/4703 lbs. (1976/2132 kg)
Alternator Type Brushless, Rare-Earth Permanent Magnet
Fuel Consumption on NG at 50% load? 1088 cfh
Fuel Consumption on LP at 50% load? 479 cfh
Controller APM402
Cylinder Arrangement V-8
Dimensions 3502 mm x 1340 mm x 1949 mm (137.9 in. x 52.8 in. x 76.7 in.)
Engine Manufacturer/Description KOHLER
Engine Model KG10V08T - 6CGS (NG), KG10V08T - 6DGS (LPG); 10.3L, 4-Cycle, Turbocharged
Engine/Alternator RPM 1800
Fuel Type Natural Gas|LPG
Frequency 60 Hz
Phase Single Phase or Three Phase
Voltage @ 60 Hz 120/240
Digital Voltage Regulation ±0.75%
Built in Mounting Pad No