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Power meets efficiency

Our liquid fuel engines offer strong performance and high efficiency, and are agile enough to meet a variety of power generation requirements.
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Our reliable liquid fuel workhorses – for cleaner power

MAN 51/60

This liquid fuel engine is cost-effective, efficient and a strong performer. It's also easy to upgrade to dual fuel or gas capability if needed. Also available with two-stage turbocharging.

  • Engine speed 500/514 rpm
  • Frequency: 50/60 Hz
  • Up to 21,600 kWm

MAN 28/32S

Designed for stationary power plants, this reliable and robust engine can operate on a variety of liquid fuels while complying with all emission limits – with the potential for further exhaust gas treatment.

  • Engine speed: 750/720 rpm 
  • Frequency: 50/60 Hz 
  • Up to 4,230 kWm

MAN 27/38S

This turbocharged, four-stroke diesel engine is known around the world for its reliability and durability.

  • Engine speed: 750/720 rpm  
  • Frequency: 50/60 Hz 
  • Up to 2,970 kWm

MAN 23/30S

Robust, reliable and efficient, the MAN 23/30S can operate on a variety of fuels – including heavy fuel oil (HFO), marine gas oil (MGO), biofuels and crude oil.

  • Engine speed: 720/750/900 rpm 
  • Frequency: 60/50/60 Hz 
  • Up to 1,400 kWm

MAN 21/31S

The turbocharged MAN 21/31S four-stroke engine is easy to install, extremely reliable and produces low emissions.

  • Engine speed: 1,000/900 rpm 
  • Frequency: 50/60 Hz 
  • Up to 1,980 kWm

MAN Energy Solutions produces a range of versatile, efficient liquid fuel engines for a variety of different applications.

Combining performance, flexibility and efficiency

MAN Energy Solutions has a long tradition of excellence in combustion engines – and produces the most efficient, advanced models on the market today.

Our successful diesel engines have been in use in power plants around the globe dating back to 1904. Known for their fuel flexibility and high efficiency, our latest models are ideal for base- and peak-load power generation. They are also very agile – offering fast start capabilities as well as high partial-load efficiency and low-load operation capabilities. MAN Energy Solutions also designs liquid fuel engines with two-stage turbocharging to boost fuel efficiency even further and avoid derating at high temperatures and altitudes.  

Our liquid fuel engines are also very versatile: They run on crude oil, heavy fuels and distillate diesel oils, but also a range of renewable fuels – including vegetable oils, animal fats and biofuels. While our engines meet all emissions requirements alone or with additional technologies, we also offer exhaust gas after-treatment technologies to make them even cleaner and greener.  

Highest power density
Liquid fuel engines from MAN Energy Solutions have a small footprint – allowing for short set-up times and easy expansion later on.
Running strong worldwide
M rhs
Our liquid fuel engines are known for their outstanding reliability and durability, marking an impressive 70,000,000 running hours globally – and counting.

MAN PrimeServ protects your energy assets from day one

Whether you feed energy into the grid or satisfy a localized demand, on land or at sea, our technicians provide what you need – where and when you need it, ensuring the availability, flexibility, and profitability of your plant. 

How you benefit: 

  • Fast, reliable and expert customer support
  • Prompt delivery of OEM spare parts
  • Bespoke O&M contracts
  • Global service – 24 hours a day, 365 days a year  
Go to MAN PrimeServ

Continue reading

MAN Energy Solutions builds and equips CHP plant in Honduras

MAN Energy Solutions is taking an EPC role, responsible for the plant's overall construction. The three 18V51/60 engines will generate power and heat to produce steam to help a local textile factory operate more cleanly and more efficiently. 


CustomerProgressive Energy
Customer type  Power provider 
ApplicationCHP (combined heat and power)
Location of installationCholoma, Honduras 
Commercial operations2020 
MAN's scope of work Full EPC, 3 x MAN 18V51/60 engines 

Contact our MAN Energy & Storage support team

Ready for the cleanest liquid fuel engines on the market?

MAN Energy Solutions will design the right liquid fuel engine for your power generation needs – so you can start generating cleaner, greener energy today. It's your turn.

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