Cheong Soo

Cheong Soo

Cheon Ahn City, South Korea

25 MWe + 21 MWth

In May 2007, Wärtsilä was awarded a contract from JB Enertek Co., Ltd., South Korea, to deliver engineering and equipment (EEQ) in two phases for a 25.3 MWe combined heat and power plant (CHP). The plant is located in Cheong Soo community in Cheon Ahn City, approximately 100 kilometres south of Seoul, Korea.


Electrical load minimal but head demand maximum at night

Electricity generation
parallel to the grid

Meeting the noise level and
emission requirements set by
Korean legislation


Charging of heat accumulators during daytime and consumption
of heat at night

Wärtsilä 34SG gensets provide continuous and reliable energy

Advanced emissions and noise reduction equipment were installed


Minimum 85% efficiency
24 hours a day

Avoiding the costs of installing external site connections

Compliance with regulations
allows plant to operate efficiently and avoid potential penalties

  • Read the whole story
Cheong Soo CHP is the most successful engine plant in South Korea and we are very proud to supply power and heat to our customer by using Wärtsilä 20V34SG engines.
Mr DP Lee, Gas Equipment 1 Team, Sales Manager, JB Enertek Co., Ltd.

Main data

   Customer   JB Enertek Co., Ltd (IPP)
   Type   Wärtsilä 34SG gas trigeneration power plant
   Operating mode   Flexible baseload
   Gensets   2 x Wärtsilä 20V34SG & 1 x Wärtsilä 20V34SG
   Total output   25 MWe + 21 MWth 
   Fuel   Natural gas
   Scope   EEQ (Engineered Equipment Delivery)
   Delivered   2010 & 2015

Contact us

If you want to know more about the Cheong Soo project, please contact

Sushil Purohit
Vice President, Middle East, Asia & Australia
Wärtsilä Energy Business
Tel. +65 6267 4280

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