Press Release

Press Release

Joetsu Thermal Power Station Starts General Operations

May 15, 2014
Chubu Electric Power Co.,Inc.

This is to announce that Chubu Electric Power has begun commercial operation today of Joetsu Thermal Power Station Unit 2-2.

With this, Joetsu Thermal Power Station has begun commercial operation of for all four Units, from 1-1 through 2-2, marking the start of general operations.

Furthermore, in response to the rise in vibrations on the steam turbine bearing section of Unit 1-1 that occurred on April 09, 2013, the rated output of each unit will tentatively be 575,680kW due to the installation of pressure plates.

We are grateful for the understanding and cooperation of local residents and other local parties concerned with regard to the construction work on the Joetsu Thermal Power Station.

Chubu Electric Power will continue to strive to ensure the stable supply of low-carbon, high quality energy at reasonable prices.

[Overview of Joetsu Thermal Power Station]

Detail: Overview of Joetsu Thermal Power Station


2, Yachiho, Joetsu City, Niigata Prefecture


Originally planned rated output: 2,380MW (595MW×4 Units)
Tentative rated output: 2,302.72MW (575.68MW×4 Units)


LNG (Liquefied natural gas)

Power generation method

Multi-shaft combined-cycle power generation method (1,300°C class improved gas turbines)

 Start of construction

Unit 1-1, Unit 1-2 March 2007
Unit 2-1 April 2008
Unit 2-2 February 2010

 Start of commercial operation

Unit 1-1 July 01, 2012
Unit 1-2 January 09, 2013
Unit 2-1 July 03, 2013
Unit 2-2 May 15, 2014

 Thermal Efficiency

58.5% (Originally planned rated output when operated under lower heating value standards)

LNG Reduction

600,000t / year 

CO2 Reduction

 1,600,000t / year


[Overall of Joetsu Thermal Power Station]

 Overall of Joetsu Thermal Power Station

[Unit 2-2 Power Generation Facilities]

Unit 2-2 Power Generation Facilities

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