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 8:30 am on October 29, two workers from the cooperating companies
  were injured during dismantling of the large crane used to install the
  cover for the Reactor Building, Unit 1 within the site boundary. At
  10:35 am on the same day, one worker was transferred to Fukushima
  Medical University Hospital by a helicopter ambulance and got treatment
  including surgery. At 2:20 pm on the same day, the other worker was
  transferred to Iwaki Kyouritsu Hospital by a company car and had an
  inspection.

- At 3:30 pm on October 29, we adjusted the amount of water injected to
  the reactor of Unit 1 to approx. 5.5 m3/h in order to improve the
  working condition inside the covers at Unit 1 by holding down the
  evaporation from the reactor.

- Regarding the concentration of hydrogen in the exhaust gas of the gas
  control system for the Primary Containment Vessel of Unit 2, we found
  that the concentration of hydrogen which was approx. 1 vol% at the
  commencement of full-scale operation increased to approx. 2.3 vol% as of
  5:00 pm on October 29. Therefore, at 6:10 pm on October 29, we adjusted
  nitrogen gas injection rate from approx. 14 m3/h to 16.5 m3/h in order
  not to exceed the inflammable limit concentration (4 vol%).

·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]
Thanks to our all customer's energy-saving efforts, we could successfully
maintain an even supply-demand balance in this summer. We express our
deepest appreciation to the efforts.

While we will continue to exert maximum effort to stabilize the
supply-demand balance, we kindly request your continued efforts in keeping
electricity consumption within reasonable levels.

Appendix: Past Progress (As of 9:00 am on October 30, 2011) (PDF 123KB)
Appendix: Past Progress (From March 11, 2011 to July 31, 2011) (PDF 225KB)

* Revised past progress