Wärtsilä 31DF

The most efficient Wärtsilä 31DF, is a four-stroke multi-fuel engine generating set.

Download leaflet

 

 

Wärtsilä 31DF multi-fuel engine generating set

The record-breaking efficiency and fuel adaptability of Wärtsilä 31DF has been designed for applications where energy security is significantly important and where gas network is still forthcoming. Its modular design ensures easy adaption for the engine to run on renewable fuels. Wärtsilä engine power plants can be delivered both as EPC and Equipment Delivery contracts.

Key benefits

Key benefits icon star
  • World-class open-cycle efficiency
  • Synchronises with the grid within 30 seconds from start command
Key benefits icon star
  • Ensures energy security in operation through fuel flexibility and seamless switching between fuels
  • Can be easily adapted to run on synthetic renewable fuels
Key benefits icon star
  • Supports off-grid operation and provides fast black start capabilities
  • Unparalleled load following capabilities and high part load efficiency

Our proudest numbers

2 min

to full load

50.2%

Electrical efficiency

45+ 

million running hours with Wärtsilä dual fuel technology

The details

Technical data

Engine generating set
Cylinder configurations 20 V
Cylinder bore310 mm
Piston stroke430 mm
Engine speed750 rpm (50 Hz), 720 rpm (60 Hz)
Performance
 WÄRTSILÄ 31DF, GASWÄRTSILÄ 31DF, LFO
Rated electrical power (kW)10 777 (50 Hz) 11 377 (60 Hz)10 777 (50 Hz) 11 377 (60 Hz)
Electrical efficiency (%)50.2 (50 Hz) 50.2 (60 Hz47.9 (50 Hz) 47.9 (60 Hz)
Heat rate (kJ/kWh)7 170 (50 Hz) 7 175 (60 Hz7 510 (50 Hz) 7 515 (60 Hz
Loading and unloading
 Connected to gridFull load
Regular start time (min:sec)00:30< 5
Fast start time (min:sec)00:30< 2
Stop time (min) < 2
Ramp rate (hot, load/min)> 100%
Minimun Load
Unit level 20%
Plant level 1%

Product leaflet

Would you like to know more?

Contact us

Contact us

Fill in a contact form and our experts aim to be in contact within 1-2 business days.

PDF

Read our leaflet

Read our product brochure to get all the details.

Location

Find your local office

Find a Wärtsilä office near you.

Build your own power plant

1MWh

1MW

100MW

200MW

300MW

400MW

> 500MW

Liquid fuels

Natural gas

Liquid fuels and gas

Flexible baseload (>6000 running hours annually)

Intermediate load (2000 - 6000 running hours annually)

Peaking and grid stability (<2000 running hours annually)

Emergency

By checking this box you agree to receive communications for marketing purposes. You can unsubscribe at any time.

Read more about how we process data in our Legal & Privacy Notice

Related solutions and services

Insights - news and articles

Mikko Pulkkinen Wärtsilä
22 SEP 2022 Article
3 min read

The 5 key lessons learned from collaborations and partnerships

Collaboration between companies of different shapes and sizes can open up...
Arttu Pyysing - Work that matters - thumbnail
8 SEP 2022 Article
3 min read

Work that matters

At Wärtsilä, Business Intelligence Analyst Arttu Pyysing is doing something he cares deeply about: advancing the energy...
Heikki Vepsäläinen Sushil Purohit Wärtsilä
1 SEP 2022 Article
4 min read

The Global Shift to Renewable Energy — How collaboration between companies can create new opportunities on the drive to net zero

The global shift...

Wärtsilä Energy. Let's connect.