TEPCO Illustrated

Nuclear Power
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The number of abnormalities (based on the law)

At the end of FY2016
(Unit: case)

  Fukushima Daiichi Nuclear Power Station Fukushima Daini Nuclear Power Station Kashiwazaki-Kariwa Nuclear Power Station
FY Unit 1
(Include common facilities )
Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Sub Total Unit 1
(Include common facilities )
Unit 2 Unit 3 Unit 4 Sub Total Unit 1
(Include common facilities )
Unit 2 Unit 3 Unit 4 Unit 5 Unit 6 Unit 7 Sub Total
before 2001 34 25 16 7 11 12 105 12
(6)
6 7 3 28
(6)
4 4 1 4 1 4
(2)
2
(1)
20
(3)
2002 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 0
2003 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0
2004 0 1 0 0 0 0 1 0 0 0 0 0 2 0 0 0 1 0 0 3
2005 0 2 1 0 1 1 5 0 1 0 0 1 0 0 0 0 1 0 0 1
2006 0 1 0 2 1 0 4 1 0 0 1 2 0 0 0 0 0 0 0 0
2007 1 0 0 0 0 0 1 0 1 0 0 1 1
(*5)
0 1 0 0 2 0 4
2008 2 0 1 0 1 0 4 0 0 1 0 1 0 0 0 0 0 1 0 1
2009 0 0 1 0 0 0 1 0 0 0 1 1 0 0 0 0 0 0 0 0
2010 1
(*6)
0 0 0 1 0 2 1 0 0 0 1 0 0 1 0 0 0 0 1
2011 0 0 0 0 0 0 0 0 1 1
(*7)
0 1 0 0 0 0 0 0 0 0
2012 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 2
2013 5
(*8)
0 0 0 0 0 5 0 0 0 0 0 0 0 0 0 0 0 0 0
2014 6 0 0 0 0 0 6 0 0 0 0 0 0 0 0 0 0 0 0 0
2015 2 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 1 0 0 1
2016 1 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0
Cumulative
total
52 29 19 9 15 13 137 14
(6)
9 9 6 38
(6)
8 4 3 4 5 7
(2)
2
(1)
33
(3)

(Note)

  1. Reporting of the number is stipulated by Nuclear Reactor Regulation Law and Electric Utilities Industry Law
  2. The cumulative total shows the number of abnormalities of each unit since the beginning of its commercial operatin
  3. ( )shows the data before the beginning of commercial operation
  4. Common facilities include incinerator, solid waste storage and port facility etc.
  5. The overflow which occured at the operating floors of unit 1 to unit 7 as a result of Niigata Prefecture Chuetsu Earthquake(Jul. 16 2007)is counted as one at unit 1.
  6. All of the abnormalities which occurred at Fukushima Daiichi and Daini NPS from FY2010 to FY2012 as a result of the Tohoku-Pacific Ocean Earthquake(Mar. 11 2011) is counted as one at unit 1of Fukushima Daiichi NPS in FY2010.
  7. The contamination which occurred as a result of the leaks of nuclear fuel materials in the non-management area of the service building at unit 3 and 4 of Fukushima Daini NPS is counted as one at unit 3.
  8. Since Fukushima Daiichi NPS was designated as Specified Reactor Facilities in August 14, 2013, all abnormalities of unit 1 to 4 are counted at unit 1. Abnormalities at Fukushima Daiichi NPS after Off the Pacific coast of Tohoku Earthquake in 2011, that needs to be reported based on the law has been applied since "The Implementation Plan of Safety Measures to be taken for the Specified Reactor Facilities or the Protection of Specified Fuel" was approved on August 14, 2015.