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 12:25 am on November 8, RO membrane unit of desalting facility in 
  spent fuel pool, Unit 4 automatically stopped due to the alarm 
  indicating leakage. Responding to the alarm, we confirmed that all the 
  isolation valves of each unit were closed by the interlocks. Also, 
  considering that all the spots at leakage risk were equipped with 
  receiving pans which would be able to store all of the liquid in the 
  unit, we judged that further deterioration of leakage or leakage to 
  outside of the unit was unlikely. We will check the site and situation 
  in the future. The operation of circulating cooling system has been
  continued. Afterwards, as the result of confirmation at the site of this
  facility, we confirmed that the leakage have stopped, all of the leaked
  liquid is in the receiving pans (approx. 5 liter), and there exists a
  trail of leakage from the pump casing of RO membrane unit. At 2:00 pm on
  the same day, we wiped out the leaked liquid and reset the alarm. We
  will investigate in detail.

* At 3:00 pm on November 8, as the power supply of Unit 2 accumulated
  water transfer pump will be stopped as the preparation of the power
  source reinforcement work, we stopped transferring accumulated water
  from the basement of Unit 2 turbine building to Centralized Radiation
  Waste Treatment Facility (Miscellaneous Solid Waste Volume Reduction
  Treatment Building [High Temperature Incinerator Building]).

· 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 3:00 pm on November 8, 2011) (PDF 363KB)
Appendix: Past Progress (From March 11, 2011 to July 31, 2011) (PDF 225KB)

* Revised past progress