Progress Reports on the Investigation and Examination of Unconfirmed and Unresolved Issues on the Fukushima Daiichi Nuclear Accident

We identified unconfirmed and unresolved issues on the detailed development mechanism after the March 11, 2011 accident occurred at Fukushima Daiichi, and are compiling reports in order to make progress on the decommissioning work as well as make continuous safety improvements at nuclear power stations.

TEPCO will continue working to gain a thorough understanding of what happened, such as the performance of the nuclear reactors at the time of accident, through planned investigation of the site and simulation analyses. By doing so, we will also enhance the obligation of nuclear power stations to operate safely, utilize the results to carry out decommissioning work, and continue to make progress in our nuclear safety reform initiative.

The 5th Progress Report on the Investigation and Examination of Unconfirmed and Unresolved Issues on the Development Mechanism of the Fukushima Daiichi Nuclear Accident (Dec. 25, 2017)

The 4th Progress Report on the Investigation and Examination of Unconfirmed and Unresolved Issues on the Fukushima Daiichi Nuclear Accident (Dec. 17, 2015)

The 3rd Progress Report on the Investigation and Examination of Unconfirmed and Unresolved Issues on the Fukushima Daiichi Nuclear Accident (May. 20, 2015)

The 2nd Progress Report on the Investigation and Examination of Unconfirmed and Unresolved Issues on the Fukushima Daiichi Nuclear Accident (Aug. 6 2014)

The 1st Progress Report on the Investigation and Examination of Unconfirmed and Unresolved Issues on the Fukushima Daiichi Nuclear Accident (Dec. 13, 2013)

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