Chiba, Japan

15.7 MWe + 10.85 MWth

The growing demand for natural gas as fuel and the increasing importance of environmental values in Japan have encouraged investments in gas-fired power generation systems. The green point of view has also contributed to the rise of interest towards trigeneration energy sources. This shift in mindset and energy policy has created an opportunity for Wärtsilä to offer its trigeneration solutions to Energy Advance (ENAC) in the form of the Makuhari District Heating and Cooling (DHC) Centre power plant. ENAC is an energy services provider and a subsidiary of Tokyo Gas, Japan’s largest gas company. For Tokyo Gas, ENAC is a way of promoting cogeneration services to its customers nationwide. The trend in the market shows a growing need for trigeneration as well as Combined Heat & Power (CHP) technologies located close to end-users, near the point of consumption.

Since the Wärtsilä gas engines were taken into operation in 2007, they have run well in a daily start and stop mode. Each engine reaches about 30,000 running hours with reliable operation.
Mr. Atsuya Ono, Chief Manager, Makuhari District Heating & Cooling, Operation Center, Energy Advance Co.,Ltd


Progression into becoming a more environmentally friendly city

Providing continuous and reliable electricity, heat and cooling to Makuhari New City

Location in the middle of densely populated Makuhari City


Wärtsilä 34SG engines and natural gas as fuel

Wärtsilä 34SG engines as a suitable power generation source

Clean and quiet operation of the trigeneration plant


Cutting CO2 emissions by 24,000 tonnes per year compared to conventional DHC systems

High electrical & thermal efficiencies, no liquid fuel needed for ignition

Capability to provide energy to
the whole city, minimal heat and electricity transmission losses

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Main data

   Customer   Energy Advance Co. (Utility)
   Type   Wärtsilä 34SG gas trigeneration power plant
   Operating mode   Flexible baseload
   Gensets   1 x Wärtsilä 20V34SG + 1 x Wärtsilä 16V34SG
   Total output   15.7 MWe + 10.85 MWth
   Fuel   Natural gas
   Scope   EEQ (Engineered Equipment Delivery)
   Delivered   2007

Contact us

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

Shivanand Gannur
Business Development Manager, The Middle East, Asia & Australia
Wärtsilä Energy Business
Tel. +358 10 709 1066

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