TEPCO Illustrated

Electricity Supply Facilities
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Special Note on Power Generation Facility

As of the end of FY2016

Date Special Note
August 18, 1959 Thermal power becomes primary power source, with hydroelectric next
December 10, 1965 Operation of Yagisawa Power Station (TEPCO's first pumped storage plant) (80MW) was started
March 30, 1968 Generation capacity surpasses 10GW
April 24, 1970 Operation of Minami Yokohama Thermal Power Station Unit 2 (350MW) (world's fist LNG-only thermal power) was started
March 26, 1971 Operation of Fukushima Daiichi Nuclear Power Station Unit 1 (460MW) was started.
June 16, 1973 Coal-only thermal power was abolished in Japan (Shin-Tokyo Thermal Power Station was the last)
July 18, 1974 Generation capacity surpasses 20GW
September 28, 1974 Operation of Kashima Thermal Power Station Unit 5 (first 1,000MW capacity from single unit in Japan) was started
October 12, 1978 Operation of Fukushima Daiichi Nuclear Power Station Unit 4 was started (nuclear power surpasses hydroelectric power)
October 24, 1979 Operation of Fukushima Daiichi Nuclear Power Station Unit 6 (1,100MW)was started (Total power station output was 4,696 MW)
October 26, 1979 Generation capacity surpasses 30GW
September 11, 1981 Shin-Takasegawa PowerStation was established (maximum output 1,280MW, single-unit output 320MW)
April 20, 1982 Operation of Fukushima Daini Nuclear Power Station Unit 1 (1,100MW) was started
December 17, 1982 Operation of Tanbara Power Station Units 1, 4 (300MW each) was started
September 18, 1985 Operation of Kashiwazaki-Kariwa Nuclear Power Station Unit 1 (1,100MW) was started
July 4, 1986 Operation of Tanbara Power Station Units 2, 3 (300MW x 2) was started
November 6, 1986 Operation of all units at Futtsu Thermal Power Station Group 1 (1,000MW) was started
August 25, 1987 Operation of Fukushima Daini Nuclear Power Station Unit 4 (1,100MW) was started
Fukushima Daini Nuclear Power Station was established
(Total output was 4,400MW, capacity of nuclear power facilities surpasses 10GW)
September 18, 1987 Operation of Higashi Ohgishima Thermal Power Station Unit 1 (1,000MW) was started
Generation capacity surpasses 40GW
July 8, 1988 Operation of Imaichi Power Station Unit 1 (350MW) was started
June 23, 1989 Operation of Hirono Thermal Power Station Unit 3 (1,000MW) was started
March 12, 1991 Operation of Higashi Ohgishima Thermal Power Station Unit 2 (1,000MW) was started
December 20, 1991 Operation of Imaichi Power Station Units 2, 3 (350MW x 2) was started
Imaichi Power Station completed (maximum output 1,050MW, single-unit output 350MW)
January 22, 1993 Operation of Hirono Thermal Power Station Unit 4(1,000MW) was started
June 24, 1994 Operation of Shiobara Power Station Units 1, 2 (300MW x 2) was started
Generation capacity surpasses 50 GW
July 7, 1994 Operation of Goi Thermal Power Station Unit 6 Gas Turbine (126MW) was started
June 16, 1995 Operation of Shiobara Power Station Unit 3 (300MW) was started
July 2, 1997 Operation of Kashiwazaki-Kariwa Nuclear Power Station Unit 7 (1,356MW) was started
Kashiwazaki-Kariwa Nuclear Power Station completed (the world's largest nuclear power station with total output of 8,212MW)
January 21, 1998 Operation of all units of Yokohama Thermal Power Station Group 7 (1,400MW) was started
January 22, 1998 Operation of all units of Yokohama Thermal Power Station Group 8 (1,400MW) was started
March 25, 1999 Operation of Hachijojima Geothermal Power Station (3.3MW) was started (TEPCO's first geothermal power station)
December 3, 1999 Operation of Kazunogawa Power Station Unit 1 (400MW) was started
March 31, 2000 Operation of Hachijojima Wind Power Station (0.5MW)was started (first commercial wind power plant for a power company)
April 7, 2000 Operation of all units of Chiba Thermal Power Station Group 1 (1,440MW) was started
June 8, 2000 Operation of Kazunogawa Power Station Unit 2 (400MW) was started
June 15, 2000 Operation of all units of Chiba Thermal Power Station Group 2 (1,440MW) was started
March 6, 2001 Operation of Shinagawa Thermal Power Station Group 1,Unit 2 (380MW) was started
Generation capacity surpasses 60GW
August 20, 2003 Operation of all units of Shinagawa Thermal Power Station Group 1 (1,140MW) was started
November 13, 2003 Operation of all units of Futtsu Thermal Power Station Group 3 (1,520MW) was started
December 12, 2003 Operation of Hitachinaka Thermal Power Station Unit 1 (1,000MW) was started
July 12, 2004 Operation of Hirono Thermal Power Station Unit 5 (600MW) was started
December 22, 2005 Operation of Kannagawa Hydroelectric Power Station Unit 1 (470MW) was started
February 5, 2009 Operation of all units of Kawasaki Thermal Power Station Group 1 (1500MW) was started
October 5, 2010 Operation of all units of Futtsu Thermal Power Station Group 4 (1,520MW) was started
April - September 2011 Operation of emergency power sources was started at following power stations: Chiba Thermal Power Station (668MW)
Anegasaki Thermal Power Station (5.6MW), Sodegaura Thermal Power Station (112.2MW),Yokosuka Thermal Power Station (329.6MW), Kawasaki Thermal Power Station (128MW),Ohi Thermal Power Station (209MW), Hitachinaka Thermal Power Station (253.23MW)
August 10, 2011 Operation of Ukishima Photovoltaic Power Station (7MW) was started (TEPCO's first Photovoltaic Power Station)
December 19, 2011 Operation of Ohgishima Photovoltaic Power Station (13MW) was started
January 27, 2012 Operation of Komekurayama Photovoltaic Power Station (10MW) was started
March 31, 2012 The emergency power sources of Hitachinaka Thermal Power Station (253.23MW) were abolished
April 19, 2012 Fukushima Daiichi Nuclear Power Station Units 1-4 (2812MW) were abolished
June 7, 2012 Operation of Kannagawa Power Station Unit 2 (470MW) was started
June - July 2012 Operation of emergency power sources was started at Chiba Thermal Power Station (334MW) and Kashima Thermal Power Station (804MW)
February 1, 2013 Operation of Kawasaki Thermal Power Station Group 2, Unit 1 (500MW) was started
March 31, 2013 The emergency power sources of Yokosuka Thermal Power Station (75.9MW) and Sodegaura Thermal Power Station (112.2MW) was abolished
May 10, 2013 The emergency power source of Yokosuka Thermal Power Station (253.7MW) was abolished
December 3, 2013 Operation of Hirono Thermal Power Station Unit 6 (600MW) was started
December 18, 2013 Operation of Hitachinaka Thermal Power Station Unit 2 (1000MW) was started
January 31, 2014 Fukushima Daiichi Nuclear Power Station Unit 5, 6 (1884MW) were abolished
March 14, 2014 Hachijojima Wind Power Station (0.5MW) was abolished

April 1, 2014

Abolition of urgently-installed power generators at Kawasaki Thermal Power Station (128MW) and Oi Thermal Power Station (128MW)

June 9, 2014

Operational start of Unit 4 of Kazunogawa Hydroelectric Power Station (400MW)

June 18, 2014

Operational start of Group 7 of Kashima Thermal Power Station (1260MW) (Conversion of urgently-installed power generators into combined cycle type)

July 31, 2014

Operational start of Group 3 of Chiba Thermal Power Station (1500MW) (Conversion of urgently-installed power generators into combined cycle type)

March 31, 2015

Abolition of urgently-installed power generators at Anegasaki Thermal Power Station (5.6MW) and Oi Thermal Power Station (81MW).

August 28, 2015

Operation of East Izu Wind Farm (18MW) was started. (TEPCO's first wind farm)

January 29, 2016

Operation of Kawasaki Thermal Power Station Group 2, Unit 2 (710MW) was started.

November 24, 2016

Shinanogawa Hydro Power Station increased water intake and power output from 169MW to 181MW.

June 29, 2016

Operation of all units at Kawasaki Thermal Power Station Group 2 (1920MW) was started.

March 31, 2017

Yokosuka Thermal Power Station Units 3 to 8 and the Gas Turbine of Unit 1, 2 (Total 2274MW) were abolished.