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)

*On 3:48 pm on November 4, we started transferring accumulated water from 
 the basement of the turbine building of Unit 1 to the basement of the 
 turbine building of Unit 2. At 9:41 am on November 6, we stopped 
 transferring.

*At 10:00 am on November 6, we started transferring accumulated water from 
 the basement of the turbine building of Unit 6 to the temporary tanks.

*At around 11:00 am on November 6, partner companies' workers who went on 
 patrol found that the boiler of evaporative concentration apparatus 
 stopped, and stopped operation of 3B and 3C of the apparatus. Since the 
 operation panel on the site alerted "Very low water level in boiler supply 
 water tank", we assumed that the boiler stopped due to this reason. After 
 that, we investigated the cause on decrease of supply tank water level. 
 When we tried to start a backup pump for transfer of boiler supply water, 
 the alert stopped. Thus we judged that one pump was a bad condition.
 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.

*At 11:04 am on November 6, we started operation of radioactive material 
 removal instruments for the spent fuel pool of 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 3:00 pm on November 6, 2011) (PDF 133KB)
Appendix: Past Progress (From March 11, 2011 to July 31, 2011) (PDF 225KB)

* Revised past progress