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 3:05 pm on November 8, for the purpose of switching off accumulated 
  water transfer pump of unit 3 for enhancement work of electricity source, 
  transfer of accumulated water of underground of turbine building of unit 
  3 to centralized radiation waste treatment facility (miscellaneous solid 
  waste volume reduction treatment facility (high temperature incinerator 
  building) was stopped.

* At 4:05 pm on November 8, water injection to reactor of unit 3, as 
  decrease of injection rate from feed water system was observed, injection 
  rate was adjusted to approx. 3.0m3/h (water injection continues from core 
  spray system at approx. 8.0m3/h).

* At 4:23 am on November 8, as allophone was observed from the motor of 
  cesium adsorption treatment water transfer pump (B), cesium adsorption 
  apparatus was stopped. After switched to (A) pump, at 4:54 pm, it was 
  restarted and reached to normal operation flow (approx. 18m3/h) at 5:00 
  pm. We will investigate the cause. As the apparatus stop time was short, 
  there was no significant effect on the water treatment.

* At 2:24 am on November 8, we manually stopped the boiler of evaporative 
  concentration apparatus in the water desalinations since alarm worked and 
  indicated decrease of water level in boiler water supply tank at 2:20 am. 
  Then, we stopped evaporative concentration apparatus 3B at 2:28 am ad 3C 
  at 2:31 am. Although all the evaporative concentration apparatus stopped, 
  water treatment by the water desalinations (RO membrane system) and water 
  injection to the reactors have been continued. Causes will be 
  investigated in the future. Thereafter, as a result of the inspection of 
  inlet strainer of boiler make up water transfer pumps (A) and (B), 
  plugging was found due to water scale of filtered water attached to 
  inside of the pipe, after removing those contaminations, evaporated 
  concentration apparatus 3B and 3C was restarted at 5:08 pm and at 6:01 am 
  on the same day respectively. Cleaning of strainer will be conducted at 
  appropriate timing.

* Cooling system of spent fuel pool was stopped at 5:41 am for unit 2 and 
  at 5:43 am for unit 1 due to the switching work of electricity to enhance 
  security of electricity source. Both system will be shut down until 4:30 
  pm. The temperature at the time was 22°C for unit 1 and 24°C for unit 2 
  and the temperature of spent fuel pool will be estimated to increase 
  around 1 - 2°C for unit 1 and about 3°C for unit 2.

·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 9, 2011) (PDF 140KB)
Appendix: Past Progress (From March 11, 2011 to July 31, 2011) (PDF 225KB)

* Revised past progress