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 November 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)

  - From November 15, due to cleanup work in order to prevent performance 
    deterioration of pump caused by inletting sand or other materials piled 
    up at the bottom of pump room of intake channel of Unit 6, Residual 
    Heat Removal System (A) was shutdown, and stopped cooling the reactor. 
    And Seawater pump of Equipment Water Cooing System (A) was shutdown, 
    and stopped cooling the spent fuel pool. The stop is scheduled from 
    7:00 am to 5:00 pm everyday, and reactor water temperature will rise 
    by approx. 12°C per day, and spent fuel pool water temperature will 
    rise by approx. 3°C per day. (The cleanup work is planned to be 
    finished in a week.) On November 23, we finished all of this clean up 
    work and at around 5:00 pm on the same day. When we restarted the pump 
    of auxiliary cooling sea water system (A) which stopped due to the work, 
    it shut down automatically right after it was restarted. Currently the 
    cause is under investigation. Reactor water and Spent Fuel Pool are 
    planned to be cooled alternatively by pump of residual heat removal 
    system (A) until the pump is recovered. The rise of increase in 
    temperature of reactor water is about 1.2°C/h and spent fuel pool is 
    about 0.3°C/h and we think there are no problems on these values. 
  - As organized the preparation work of change of the hose for condensed 
    water transferring line and desalination transferring line with the 
    water desalinations (reverse osmosis membrane type) which water leak 
    was found on November 17, we had changed the hose from November 22 to 
    23.

· 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 24, 2011) (PDF 330KB)
Appendix: Past Progress (From March 11, 2011 to July 31, 2011) (PDF 225KB)

* Revised past progress