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 3:30 PM on February 11, Unit 1 reactor injection water amount was adjusted as follows since the amount had decreased.
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.

- At 8:34 AM on February 12, the second cesium absorption apparatus (SARRY) was suspended for installation of an additional accumulated water transfer pump in the Central Radioactive Waste Treatment Facility (High Temperature Incinerator Building). Due to this, at 10:31 AM on the same day, the cesium absorption apparatus was started, and the steady flow rate was achieved at 10:44 AM.

- At 9:00 AM on February 12, we started transferring the accumulated water in Unit 6 Turbine Building basement to the temporary tank. At 2:00 PM on the same day, the transfer was stopped.

- At 1:42 PM on February 6, we started transferring the accumulated water in Unit 2 Turbine Building basement to Unit 3 Turbine Building basement. At 10:15 AM on February 12, the transfer was stopped.

- At 11:03 AM on January 24, we started transferring the accumulated water in Unit 3 Turbine Building basement to the Central Radioactive Waste Treatment Facility (Miscellaneous Solid Waste Volume Reduction Treatment Building [High Temperature Incinerator Building]). At 10:25 AM on February 12, the transfer was stopped. At 11:02 AM on the same day, we started transferring the accumulated water in Unit 3 Turbine Building basement to the Central Radioactive Waste Treatment Facility (Process Main Building).

- On February 12, sampling was conducted at the charcoal filter and the particulate filter of Unit 3 PCV gas control system

- On February 12, dust sampling was performed in the upper part of Unit 3 Reactor Building.

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

* Revised past progress

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