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 10:14 am on December 27, we started transfer of accumulated water 
    from site banker to process main building in the centralized radiation 
    waste treatment facility. At 3:18 pm on the same day we stopped the 
    transfer.

  * At 1:58 pm on December 27, in the alternative cooling system of the 
    spent fuel pool of Unit 2, 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 of the spent fuel pool (the temperature of the pool 
    at the time of the suspension was approx. 14.2°C). After the flushing, 
    we are maintaining the inhale pressure of the primary circulating pump. 
    Therefore, at 3:57 pm on the same day we resumed the pump and cooling 
    of the spent fuel pool (the temperature of the pool at the time of the 
    resuming was approx. 14.2°C).
 
  * Since December 22, one of the atmospheric temperatures of Unit 1 
    Primary Containment Vessel (PCV) monitored by the Containment 
    Atmospheric Monitoring System had risen (the atmospheric temperature 
    of the PCV on December 22 was approx. 38°C, at 7 pm on December 27 was 
    approx. 49°C). The other temperatures had not risen, so we conducted a 
    survey from 9 am to 10 am on December 28, and we confirmed that there 
    are no problems. The volume of Nitrogen injection and emission from 
    the gas management system will be adjusted as before December 22, and 
    we identify cause with monitoring.

· 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 10:00 am, December 28, 2011) (PDF 444KB)
Appendix: Past Progress (From March 11, 2011 to July 31, 2011) (PDF 225KB)

* Revised past progress