C25G Gas Generator Series

C25G Gas Generator Series

Frequency (Hz) 50, 60
Certification Global Compliance
Fuel Type Lean-Burn Gas

The new C25G is a high-efficiency gas generator series offering a total package of gas generator capabilities and innovative gas technology for prime and peaking power applications.


Prime Power Cogeneration


The C25G is engineered to deliver superior fuel efficiency and provide you with reduced maintenance costs per kWh, together with an outstanding worldwide responsive support network to maximize your value and economy.




C25G generator features 1


C25G generator features 2


Target Industries


Commercial & Institutional Utility Industrial
Airports Landfills Mining
Universities Waste Water Treatment Plants Manufacturing
Prison Bases Grid Firming Oil and Gas
Shopping Malls Anaerobic Digesters Greenhouses
  Independent Power Producers Agriculture


Wherever you are, whatever your job, Cummins expertise is Always On

Cummins offers customers unrivaled peace of mind when it comes to servicing and maintaining the C25G. Best-in-class aftermarket capabilities via your dedicated local contact, supported by a global system of service technicians, engineers and part distributions facilities in over 190 countries.

Cummins Infographic Map


  Genset Model C500N5C C580N6C
  Hz 50 60
Pipeline Natural Gas ISO Electrical Efficiency % 41.6 40.6
  ISO Thermal Efficiency % 50.4 51.2
  ISO Fuel Consumption kW 1203 1429
  Usable Heat kW 606 731
  Minimum Methane # 75 72
Low BTU ISO Electrical Efficiency % 39.5 38.60
  Energy Content 14 - 28.8 MJ/Nm3 400 - 830 BTU/scf
  Dimensions (m) 
(L X W X H)
4.9 x 1.8 x 2.2 4.9 x 1.8 x 2.2
  Temperature Rise (Deg. C) 80 - 105 80 - 105
  NOx emissions
250 - 500 0.5 - 1.0
Generator Model kWe Hz Fuel Type Certification
C500N5C 500 50 Lean-Burn Gas, Gas Global Compliance
C580N6C 580 60 Lean-Burn Gas, Gas Global Compliance


  • Excellent Power Density – 500kW (50Hz) & 580kW (60Hz) from a 25L engine
  • High Electrical Efficiency – Up to 41.6% (50Hz) and 40.6% (60Hz) on pipeline natural gas down to 71 MN (50Hz) and 68 MN (60Hz), meeting ISO standards


  • – Pipeline natural gas down to 60 MN, biogas fuels down to 18MJ/Nm3 (485BTU/scf) at full power, as low as 14MJ/Nm3 (375BTU/scf) with 70% derate; contaminant capability on aggressive fuels


  • Ambient Temperatures – Achieves 500kW (50Hz) in ambient temperatures of 41°C and 580kW (60Hz) full power available up to 34°C. Reliable power up to 52°C with derate for both 50Hz and 60Hz models.
  • Altitude Capability – 50Hz models achieve full power up to 1600 meters, maximum 2000 meters with minor derate. 60Hz models achieve full power up to 1300 meters, to a maximum of 2000 meters with minor derate


  • Low NOx Emissions– As low as 250 mg/Nm3  (0.5g/hp-hr) without aftertreatment, compliant with EU Medium Combustion Plant Directive (MCP) and US EPA NSPS Stationary compliant capable.
  • Grid Code Compliance - Meets CE, UL, CSA, ENTSO-e Grid Codes (e.g. RfG, VDE, G99) and EAC (Russian Customs Union) requirements & certifications

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