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.

* The second Cesium adsorption apparatus, which has been shut down since 
  8:33 am on December 12, restarted at 10:37 am on December 27. Treatment 
  of accumulated water restarted which has been suspended since December 20.

* At 11 am on December 27, regarding the water injection into the reactor 
  core of unit 2, for the purpose of preparation of commissioning of water 
  injection pumps for diversification, water injection rate from feed water 
  system was adjusted from approx. 2.8 m3/h to 2.0 m3/h, from core spraying 
  system was adjusted from approx. 6.0 m3/h to 7.0 m3/h.

* Due to the completion of restoration of residual heat recovery (RHR) sea 
  water pump (A) of unit 6, which was not be able to use by the affect of 
  tsunami, at 10:19 am on December 27, commissioning was started, at 11:30 
  am as no incident was observed, it returned to usual operation. As a 
  result, two RHR pumps, (A) and (C), had been returned to service. During 
  the commissioning, while RHR pump (A) of unit 6 was temporary stopped 
  from 10:01 am to 11:09 am and cooling of reactor core was suspended, as 
  the increase of core water was approx. 0.7°C and there were no concerns 
  to the safety.

* 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)

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

* At 10:06 am on December 27, for the purpose of determine soundness of 
  reactor primary containment vessel of unit 1 and internal facilities, 
  airlock for the workers (hatch to enter into the primary containment 
  vessel) was opened and started sight survey.

· 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 3:00 pm, December 27, 2011) (PDF 254KB)
Appendix: Past Progress (From March 11, 2011 to July 31, 2011) (PDF 225KB)

* Revised past progress