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Corporate Information

 
Press Release (Jan 24,2012)
Status of TEPCO's Facilities and its services after the Tohoku-Chihou-Taiheiyou-Oki Earthquake (as of 4:00 pm, January 24)
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 major facilities.

* Updates are underlined. 
[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 2:30 pm on January 22, we started transferring accumulated water 
    from the basement of T/B, Unit 3 to the Central Radioactive Waste 
    Treatment Facility (Miscellaneous Solid Waste Volume Reduction 
    Treatment Building [High Temperature Incinerator Building]). At 10:02 
    am on January 24, we stopped the transfer. 
  - Regarding the water injection into the reactors of Units 2 and 3, in 
    order to switch injection piping of the reactor injection pump on the 
    hill, the amount of the water injected into the reactor is gradually 
    adjusted. At Unit 3, at 10:38 am on January 24, the amount of water 
    injected from the reactor feed water system was adjusted from approx. 
    6.0m3/h to approx. 7.0 m3/h and the amount of water injected from the 
    core spray system was adjusted from approx. 2.9 m3/h to approx. 2.0 
    m3/h. At Unit 2, at 10:42 am on the same day, the water injected from 
    the reactor feed water system was adjusted from approx. 7.0m3/h to 
    approx. 8.0 m3/h and the amount of water injected from the core spray 
    system was adjusted from approx. 1.9 m3/h to approx. 1.0 m3/h. 
  - At 12:00 pm on January 24, one of the staff from a cooperating company 
    struck his full-face mask against the edge of the carrier of a truck 
    and the filter of his mask temporarily dropped off. As there was a 
    possibility of intake of radioactive materials, we measured his 
    internal exposure dose with a whole body counter. As a result, there 
    was no significant problem of internal radiation dose (the measured 
    level was below the standard of inscription in the radiation dose 
    management notebook.), therefore, we evaluated that there was no intake 
    of radioactive materials. There was no pollution on the inner side of 
    the full-face mask, the face, and the nostril. 
  - At 8:35 am on January 24, as there was a gradual lowering of throughput 
    of the second cesium adsorption apparatus (Sarry), it was temporarily 
    stopped to backwash its filter. It was restarted at 2:55 pm on the same 
    day, and it reached the steady flow rate (36m3/h) at 3:03 pm on the 
    same day. 
  - At 3:24 pm on January 24, we started transferring the accumulated water 
    from the basement of the turbine building of Unit 3 to the centralized 
    radiation waste treatment facility (miscellaneous solid waste volume 
    reduction treatment building [high temperature incinerator building] 
    and process main building). 
  - At 3:36 pm on January 24, we started transferring the accumulated water 
    from the basement of the turbine building of Unit 2 to the centralized 
    radiation waste treatment facility (miscellaneous solid waste volume 
    reduction treatment building [high temperature incinerator building] 
    and process main building). 
  - At 10:00 am on January 24, we started transferring the accumulated 
    water in the basement of the turbine building of Unit 6 to the 
    temporary tank. At 4:00 pm on the same day, we stopped the transfer. 

· 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] 
This winter, there will be some minus factors such as the regular 
inspection of Unit 5 at Kashiwazaki-Kariwa Nuclear Power Station. On the 
other hand, there will be several plus factors such as the recovery of the 
common thermal power stations which suffered the earthquake. As a result, 
we expect to secure 54.6 GW (at the end of January), 53.7 GW (at the end of 
February) supply power. 
Compared to the maximum demand in the last winter, which is 51.5 GW, we 
will have 2.2 - 3.1 GW generation reserve margin.

We expect to maintain stable power supply this winter, however, as there 
remains possibilities of unplanned shutdowns at our power stations and 
growth in the demand according to the rapid change in the temperature, we 
would like to ask your reasonable effort to save electricity.

We will continue to make our efforts to maintain stable operation and 
maintenance of the power facilities in order to "prevent in principle" the 
planned blackouts and secure power supply.  
Appendix: Past Progress (As of 4:00 pm, January 24, 2012) (PDF 356KB) 
Appendix: Past Progress (From March 11, 2011 to July 31, 2011) (PDF 225KB) 



* Revised past progress 
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