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 4:24 pm on November 8, we stopped the radioactive material removal 
    instruments of the spent fuel pool of Unit 2 and the cooling system of 
    spent fuel pool was stopped at 5:43 am for unit 1 and at 5:41 am for 
    unit 2 due to the switching work of electricity to enhance security of 
    electricity source. (The temperature of the spent fuel pools were 22°C 
    (Unit 1), 23.9°C (Unit 2) when the instruments were stopped.) At 8:47 
    pm on November 9, we restarted the radioactive material removal 
    instruments of the spent fuel pool of Unit 2. The cooling system of 
    spent fuel pool was restarted at 8:20 pm for unit 2 and at 10:29 pm 
    for unit 1. (The temperature of the spent fuel pools were 20°C (Unit 1), 
    26.3°C (Unit 2) when the instruments were restarted.) 
    * The temperature of the spent fuel pool of Unit 1 became lower. This 
      was presumed to be influenced by water in Skimmer Surge Tank whose 
      temperature was lowered by open air.

  - At 10:00 am on November 9, we started transferring accumulated water 
    of the basement of Unit 6 to the temporary tank, and stopped the 
    transfer at 4:00 pm on the same day.

  - On November 9, sampling survey of gas at the gas management system of 
    Unit 2 primary containment vessel was implemented. According to its 
    analysis, it is considered that recriticality was not occurred because 
    radioactive Xe135 at the entrance of gas management system of Unit 2 
    was below detection limit (1.1x10-1Bq/cm3). In addition, Xe-135 (1.9x
    10-5Bq/cm3) was detected by charcoal filter. This was measured value 
    and evaluated to be the amount emitted from the gas management system. 
    Thus, the value measured by gas vial was converted into the value of 
    1.1x10-2Bq/cm3 using achievement rate. This value was the same as 2.7x
    10-2Bq/cm3 that was evaluated before.

· 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 54.9 GW (at the end of December), 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 - 3.4 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 9:00 am, November 10, 2011) (PDF 140KB)
Appendix: Past Progress (From March 11, 2011 to July 31, 2011) (PDF 225KB)

* Revised past progress