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.

* Updates since the previous press release 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 10:00 am on December 15, we started transferring accumulated water
   from the basement of Unit 6 turbine building to the temporary tank. At
   4:00 pm on December 16, we stopped it.

 * At 9:30 am on December 12, we started transferring of the accumulated
   water in the condensate storage tank of Unit 3 to the basement of
   Turbine Building of Unit 3 before feeding water to reduce salt level
   in the tank. After that we confirmed decrease of transferring quantity
   of water from the water level fluctuation, at 0:00 pm on December 14,
   we stopped transferring of the accumulated water in the tank. Also we
   confirmed that there was no water leakage at the site. At 0:30 pm on
   December 15, we flushed the pipe and started the system. Then, as we
   have confirmed the system was operating normally, we presume the cause
   is stuck of dust in the pipe. At 4:00 pm on December 16, we stopped
   transferring it.

· 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 9:00 am, December 17, 2011) (PDF 228KB)
Appendix: Past Progress (From March 11, 2011 to July 31, 2011) (PDF 225KB)

* Revised past progress