Sumitomo Metals Kashima power station

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The Sumitomo Metals Kashima, also known as Kashima Iron Works Power Plant, is a 507 MW power plant in Ibaraki, Japan.

Another 645 MW has been proposed for 2020.


The map below shows the Sumitomo Metals plant in Kashima.

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The iron works plant is owned and operated by Sumitomo Metal Industries and Nippon Steel. According to the U.S. Geological Survey: "Sumitomo Metals Kashima thermal powerplant began commercial operation in June 2007. Construction of the plant started in January 2004. The $545 million coal-fired plant had a generating capacity of 507 megawatts. Power would be supplied to Tokyo Electric Power Co., Inc. for 15 years."[1]


On December 9, 2013, J-Power and Nippon Steel & Sumitomo Metal announced that they had formed the new company Kashima Power Company to construct an ultra-super critical 650 MW coal unit on the grounds of the Kashima Iron Works plant. Since this will be an expansion of the existing Kashima Iron Works Power Plant site, it is expected that the environmental impact assessment will be sped up. The new power plant is expected to start by 2020. About 300 MW of the power will be sold to TEPCO, and the remaining power will be sold to other companies.[2]

In May 2016, Japan’s environment minister Tamayo Marukawa endorsed the plant.[3]

As of November 2016, Kiko Network reports that the project is under construction, with completion expected in July 2020.[4]

Project Details of expansion

  • Sponsor: Kashima Power Company
  • Parent company: Nippon Steel & Sumitomo Metal, J-POWER
  • Location: Kashima, Ibaraki, Kantō, Japan
  • Coordinates: 35.947067, 140.688737 (exact)
  • Status: Construction
  • Capacity: 645 MW
  • Type: Ultra-supercritical
  • Projected in service: 2020
  • Coal Type: hard coal
  • Coal Source: imported
  • Estimated annual CO2:
  • Source of financing:

Articles and Resources

Related SourceWatch articles


  1. Chin S. Kuo, "The Mineral Industry of Japan", U.S. Geological Survey, April 2009, page 6.
  2. "J-Power and Nippon Steel & Sumitomo Metal to form new company, expanding another coal power plant in Ibaraki," Sekitan, Jan 6, 2014.
  3. Chisaki Watanabe, "Japan Minister Endorses Two Coal-Power Plants North of Tokyo," Bloomberg, May 27, 2016
  4. "Kashima No.2 / Kashima Power / Kashima city, Ibaraki pref.," Japan Coal Plant Tracker, Kiko Network, accessed November 2016

External resources

External Articles