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 on July 19 we accomplished the Step1 target "Radiation dose is 
in steady decline". Then on December 16 we confirmed the accomplishment of 
the Step 2 target "Release of radioactive materials is under control and 
radiation doses are being significantly held down".
In addition, on December 21, we have compiled the "Mid-to-long-Term Roadmap 
toward the Decommissioning of Fukushima Daiichi Nuclear Power Units 1-4, 
TEPCO".
In addition to the maintenance of the plant's stable condition, we will 
implement Mid-to-Long Term countermeasures towards the decommissioning of 
Fukushima Daiichi Nuclear Power Units 1-4 to enable evacuees to return to 
their homes as soon as possible and reduce the anxiety of the people in 
Fukushima and the whole nation as soon as possible.

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 1:36 pm on December 26, we started to inject hydrazine into spent fuel 
  pool of unit 2 through circulating cooling system. At 3:12 pm we stopped 
  injection of hydrazine.

* At 10:00 am on December 26, we started to transfer accumulated water from 
  the basement of turbine building of Unit 6 to the temporary tanks. At 
  4:00 pm we stopped to transfer accumulated water.

* At 2:00 pm on December 26, in the alternative cooling system of the spent 
  fuel pool of Unit 3, as the inhale pressure of the primary circulating 
  pump showed the tendency of decrease, we stopped the pump in order to 
  conduct flushing of the strainer on its entry side and suspended cooling 
  the spent fuel pool (the temperature of the pool at the time of the 
  suspension was approx. 13°C). After flashing, as inhale pressure of the 
  pump has recovered, at 4:32 pm on the same day, the pump was restarted 
  and cooling of spent fuel pool was restarted (the temperature of the pool 
  at the time of restart was approx. 13°C).
 
* At 10:10 am on December 26, we started to transfer accumulated water from 
  the basement of turbine building of Unit 2 to the Centralized Radiation 
  Waste Treatment Facility (Miscellaneous Solid Waste Volume Reduction 
  Treatment Building [High Temperature Incinerator Building] and the 
  Process Main Building). At 9:54 am on December 27, we stopped to transfer 
  accumulated water.

* On December 26, two of TEPCO's employee who were engaged in recovery work 
  at Fukushima Daiichi Nuclear Power Station was diagnosed as influenza. On 
  December 27, one TEPCO's employee who was also engaged in recovery work 
  at Fukushima Daiichi Stabilization Center was newly diagnosed as 
  influenza. We will take countermeasure for infection and escalation 
  prevention by promoting hand washing, gargle, finger disinfecting and 
  cough etiquette and will endeavor to set and use thermometer, finger 
  disinfecting alcohol, mask.

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

* On December 26, one of TEPCO's employee who was worked at Fukushima Daini 
  Nuclear Power Station was newly diagnosed as Noro virus. Disinfecting of 
  the working environment was conducted. We will continuously promote hand 
  washing and gargle, The basic issues such as disinfection method and 
  response of medical team will be reminded.

· 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 10:00 am, December 27, 2011) (PDF 253KB)
Appendix: Past Progress (From March 11, 2011 to July 31, 2011) (PDF 225KB)

* Revised past progress