Press Releases 2013

Due to the Tohoku-Chihou-Taiheiyou-Oki Earthquake which occurred on March 11, 2011, TEPCO's facilities including our nuclear power stations have been severely damaged. We deeply apologize for the anxiety and inconvenience caused.
With regard to the accident at Fukushima Daiichi Nuclear Power Station, on April 17, 2011, we have compiled the roadmap towards restoration from the accident and on July 19 we accomplished the Step1 target "Radiation dose is in steady decline". Then on December 16 we confirmed the accomplishment of the Step 2 target "Release of radioactive materials is under control and radiation doses are being significantly held down".
In addition, on December 21, 2011, we have compiled the "Mid-to-long-Term Roadmap toward the Decommissioning of Fukushima Daiichi Nuclear Power Units 1-4, TEPCO".
In addition to the maintenance of the plant's stable condition, we will implement Mid-to-Long Term countermeasures towards the decommissioning of Fukushima Daiichi Nuclear Power Units 1-4 to enable evacuees to return to their homes as soon as possible and reduce the anxiety of the people in Fukushima and the whole nation as soon as possible.

Below is the status of TEPCO's nuclear power stations (Fukushima Daiichi and Fukushima Daini).

* The updates are underlined.

[Fukushima Daiichi Nuclear Power Station]
·Unit 1 to 4: Abolishment (April 19, 2012)
·Unit 5 to 6: Outage due to regular inspections before the earthquake

-At 5:35 PM on February 24, Units 1-3 reactor injection water amounts were adjusted as follows since the amounts had fluctuated.
[Unit 1] Feed water system: Increased from approx. 2.3m³/h to approx. 2.5m³/h, reactor core spray system: Increased from approx. 1.8m³/h to approx. 2.0m³/h.
[Unit 2] Feed water system: Increased from approx. 1.9m³/h to approx. 2.0m³/h, reactor core spray system: Maintained at approx. 3.5m³/h.
[Unit 3] Feed water system: Decreased from approx. 2.1m³/h to approx. 2.0m³/h, reactor core spray system: Decreased from approx. 3.6m³/h to approx. 3.5m³/h.

-At around 9:20 AM on February 25, at the material storage of cooperative company in Hirono Town, Fukushima Prefecture, a cooperative company worker who was engaged in the preparation for cover installation on Unit 3 Reactor Building reported being sick. The worker was transported to the medical clinic in J-Village. As cardiopulmonary arrest was confirmed at the clinic, an ambulance was called at 9:35 AM. After cardiac massage was performed, the worker's pulse was recovered at 9:54 AM. At 10:10 AM, the worker was transported to Iwaki Kyoritsu Hospital by ambulance.

-During the reliability improvement work to be implemented on Unit 3 feed water system scheduled in March, the reactor water injection from the feed water system is planned to be suspended. In prior to the reliability improvement work implementation, water injection from the feed water system was suspended with all amount injected from the reactor core spray system for the purpose of confirming that there is no significant impact on reactor cooling. At 2:22 PM on February 25, the amount of water injection from the feed water system was decreased from approx. 2.0m³/h to 0m³/h and the amount of injection from the reactor core spray system was increased from approx. 3.5m³/h to approx. 5.5m³/h.

[Fukushima Daini Nuclear Power Station]
·Unit 1 to 4: Shutdown due to the earthquake.

* Revised past progress

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