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 September 20,
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.

*Updates are underlined.

[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 3:00 pm on October 4, we adjusted water injection rate into Unit 2
 through reactor spraying system at approx. 7.0 m3/h (injection rate
 through feed water system remains at approx. 4.0 m3/h).

*Through the confirmation of the performance of water treatment facility
 (decontamination facility and cesium adsorption facility), we found
 radiation density is increasing at post decontamination treatment water.
 To investigate the cause, we stopped water treatment facility at 6:22 pm
 on September 15 and restarted at 6:42 pm of cesium adsorption facility
 alone at 6:46 pm it has reached normal operation rate (approx.30m3/h).
 Thereafter, in order to purify the water inside waste water tank, at
 11:38 am on October 4, we started single circulating operation of
 decontamination facility.

*To change transfer route of accumulated water of Unit 2, at 1:16 pm on
 October 4, we stopped transfer of accumulated water from vertical shaft
 of turbine building of Unit 2 to centralized radiation waste treatment
 facility (Miscellaneous Solid Waste Volume Reduction Treatment Building
 [High Temperature Incinerator Building]).

- Fukushima Daini Nuclear Power Station:
  Units 1 to 4: shutdown due to the earthquake

*At 10:57 am on October 4, Residual Heat Removal System (A) has stopped
 due to the replacement of cable (temporary) to Residual Heat Removal
 System (A) of Unit 2. At 11:18 am on the same day, Residual Heat Removal
 System (B) has started.

- 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 3:00 pm on October 4, 2011) (PDF 88.9KB)
Appendix: Past Progress (From March 11, 2011 to July 31, 2011)(PDF 225KB)

* Revised past progress