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)

* The injecting water line changed for injecting boric acid water was
  replaced. At 4:14pm on November 2, we adjusted injecting water volume
  into the reactor Unit 1 at approx. 7.5 m3/h from reactor feed water
  system and we adjusted injecting water volume into the reactor Unit 2 at
  approx. 3.0 m3/h from reactor feed water system and at approx. 7.0 m3/h
  from core spray system.

* At 10:00am on November 2, transfer of accumulated water which was
  transferred to temporally tank from Unit 6 turbine building to mega
  float started. The transfer was stopped at 3:00 pm on the same day.

* At 10:11 am on November 2, we started transferring the accumulated water,
  which had been transferred from Unit 3 turbine building underground to
  centralized radiation waste treatment facility(Miscellaneous Solid Waste
  Volume Reduction Treatment Building [High Temperature Incinerator
  Building]).

* At 10:16 am on November 2, we started injection of hydrazine to spent
  fuel pool of Unit 4 through the circulating cooling system. At 12:10 pm,
  we stopped hydrazine injection.

·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-Kriwa 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 million kW (at the end of December), 54.6 million
kW (at the end of January), 53.7 million kW (at the end of February)
supply power. 
Compared to the maximum demand in the last winter, which is 51.5 million
kW, we will have 2.2 - 3.4 million kW 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 2, 2011) (PDF 127KB)
Appendix: Past Progress (From March 11, 2011 to July 31, 2011) (PDF 225KB)

* Revised past progress