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Corporate Information

 
Press Release (Oct 26,2011)
Status of TEPCO's Facilities and its services after the Tohoku-Chihou-Taiheiyou-Oki Earthquake (as of 3:00 pm, October 26)
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, we have compiled the roadmap towards restoration from the 
accident and then we updated the progress status of roadmap considering the 
current situation, on July 19. Accomplishment of the Step1 target 
"Radiation dose is in steady decline" has been confirmed. On October 17, we 
updated the further progress. 
By bringing the reactors and spent fuel pools to a stable cooling condition 
and mitigating the release of radioactive materials, we will make every 
effort to enable evacuees to return to their homes and for all citizens to 
be able to secure a sound life.

Below is the status of TEPCO's major facilities.

* The underlined parts are the updates from the previous press release.

[Nuclear Power Station] 

·Fukushima Daiichi Nuclear Power Station: Unit 1 to 3: shut down due to the 
 earthquake
   (Units 4 to 6: outage due to regular inspections)

- At 5:31 pm on October 25, we started transferring the accumulated water
  brought from the basement of turbine building of Unit 1 to the basement 
  of turbine building of Unit 2.At 2:01 pm on October 26, we stopped 
  transferring.

- At 1:17 pm on October 26, we started cutting off the designated piping 
  after confirming that the hydrogen density inside the piping for cooling 
  in case of reactor shutdown was less than 0.1 %, as one of the  
  construction work to install gas monitoring system inside the Primary 
  Containment Vessel.

- At 1:05 pm on October 26, we started nitrogen purge of the designate 
  system after confirming that  hydrogen is stored with the density of 
  6.5 % when connecting piping arrangements on October 20, 2011, as one 
  of the construction work to install gas monitoring system inside the
  Primary Containment Vessel. We finished the nitrogen purge at 1:42 pm 
  because we confirmed that the hydrogen density was 0%.

- At 9:47 am on October 26, for the water injection to the reactors of 
  Units 1 to 3, we switched from normal water injection line to emergency 
  water injection line, due to the shutoff of facilities for power source 
  reinforcement work. Along with the switching work, we adjusted the
  amount of water injection from water feeding system to approximately 
  3.8 m3/h for Unit 1's reactor. Likewise, we adjusted the amount of 
  water injection to Unit 2's reactor to approximately 3 m3/h from water
  feeding system, and to approximately 8m3/h from Core Spray System.

- At 10:00 am on October 26, we started transferring the accumulated water 
  from the basement of turbine building of Unit 6 to the temporary tanks. 

- On October 26, we replaced the vane to adjust flow amount of water 
  injection line to the Unit 3's reactor in order to improve the ability
  to control the water injection amount. 

·Fukushima Daini Nuclear Power Station: 
   Units 1 to 4: shutdown due to the earthquake

·Kashiwazaki Kariwa Nuclear Power Station:
   Units 5, 6: under normal operation
   (Units 1 to 4 and 7: outage due to regular inspections)

[Thermal Power Station]
- Power supply has returned to normal and facilities damaged by the 
  earthquake are now being handled in a timely manner.

[Hydro Power Station]
- Power supply has returned to normal and facilities damaged by the 
  earthquake are now being handled in a timely manner.

[Impacts on Transmission Facilities]
- Power supply has returned to normal and facilities damaged by the 
  earthquake are now being handled in a timely manner.

[Impacts on Power Supply and Demand Balance]
Thanks to our all customer's energy-saving efforts, we could successfully 
maintain an even supply-demand balance in this summer. We express our 
deepest appreciation to the efforts.

While we will continue to exert maximum effort to stabilize the supply-
demand balance, we kindly request your continued efforts in keeping 
electricity consumption within reasonable levels.
Appendix: Past Progress (As of 3:00 pm on October 26, 2011) (PDF 113KB)
Appendix: Past Progress (From March 11, 2011 to July 31, 2011)(PDF 225KB)

* Revised past progress
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