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

- On February 20, nitrogen injection into Unit 1 PCV was temporarily suspended (from 10:07 AM to 10:33 AM) for power supply related work and was restarted after the work was completed. Nitrogen injection into the RPV was continued during that time.

- During the reliability improvement work to be implemented on Unit 2 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 1:16 PM on February 20, the amount of water injection from the feed water system was decreased from approx. 1.9m³/h to 0m³/h and the amount of injection from the reactor core spray system was increased from approx. 3.4m³/h to approx. 5.5m³/h.

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

* Revised past progress

The aforementioned attachments are only available in Japanese.
We apologize for any inconvenience this may cause.