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 November 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 around 10:50 am on November 17, water leakage from pin holes at one 
    point of freshwater transfer line, and three points at concentrated 
    water transfer line after desalination process, was confirmed by partner 
    companies' worker who was patrolling at desalination apparatus. At 
    around 2:30 pm on the same day, while water transfer was continued 
    through fresh water transfer line, at the same time, running leakage 
    repair (repaired by tapes) was implemented and completed (estimated 
    leakage amount: approx. 1liter). Cesium adsorption apparatus, 2nd 
    adsorption apparatus and concentrated evaporation apparatus continued 
    operation, and therefore there is no major effect with processing 
    accumulated water. Also, concentrated water transfer line is currently 
    not being used, and is isolated. After that we also conducted emergency 
    repair by repair tape on leaking points at concentrated water transfer 
    line, and after checking on site, we confirmed the amount of leaking 
    water by the concentrated water transfer line was 25 liters. And we 
    confirmed the radiation dose in ambient air near the leaking points 
    were not specifically different from surrounding area. We are planning 
    to change the hose later.

  - At 10 am on November 17, accumulated water at the basement of Unit 6 
    Turbine Building was started to transfer to Temporary tanks. At 4 pm 
    on the same day, the transfer was stopped.

  - At 1:15 pm on November 17, hydrazine was injected to Unit 4 Spent Fuel 
    Pool through circulating cooling system, and finished the injection at 
    2:50 pm on the same day.

  - At 2:58 pm on November 17, an alarm of Unit 4 spent fuel pool 
    circulating cooling system was sounded, and the system automatically 
    shut down. After that we confirmed the stop occurred due to error alarm 
    of leakage at heat exchange unit. At 3:58 pm on the same day, we 
    confirmed no leakage occurred, and we restarted the system 4:12 pm.

· 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)

  - As to residual heat removal system A of Unit 1 which was unable to use 
    due to Tsunami effect of Mar. 11, on November 17, the trial run was 
    conducted in order to investigate soundness. At 3:35 pm on the same day, 
    it was restored to stand-by status. At 5:15 pm on the same day, we 
    switched residual heat removal system B to residual heat removal system 
    A. At 5:29 on the same day, the system A started to operate

[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 18, 2011) (PDF 220KB)
Appendix: Past Progress (From March 11, 2011 to July 31, 2011) (PDF 225KB)

* Revised past progress