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, 2011, 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, 2011, 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.
 
* The updates are 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 before the earthquake)

- At 8:40 am on February 6, we temporally suspended the second cesium 
  adsorption apparatus to conduct backwash of the filter since gradual 
  decrease in the flow volume of treatment was confirmed. At 1:25 pm, we 
  initiated the apparatus and the flow volume reached at normal level (34 
  m3/h) at 1:33 pm. 

- At 8:44 am on February 6, the dust sampling was started in the opening of 
  Unit 2 reactor building (blowout panel). At 1:03 pm, the sampling was 
  finished. 

- Since February 2, the tendency of temperature has risen at the bottom of 
  PCV. Thus, at 7:20 pm on February 3, we changed the injection amount into 
  Unit 2 reactor through feed water system from approx. 2.9 m3/h to approx. 
  4.9 m3/h and changed that though reactor core spray system from approx. 
  5.8 m3/h to approx. 3.8 m3/h (which means setting them at those of before 
  flow adjustment on February 1). After that, we have observed the tendency 
  of temperature at the upper head of the bottom of PCV. The temperature 
  was around 70.0 °C (approx. 70.3 °C at 11:00 pm on February 5) and in 
  order to prevent further temperature increase, we decided to increase the 
  amount of water injected to the reactor. At 1:29 pm on February 6, the 
  water injection volume to the Unit 2 reactor through the feed water 
  system was changed from approx. 5.8 m3/h to approx. 6.8 m3/h (the water 
  injection through the reactor core spray system remains approx. 3.8 m3/h). 
  At this moment, temperature indicates approx. 71.0 °C (as of 11:00 am on 
  February 6). We will monitor it continuously. 
 
- On February 6, the sampling was conducted on charcoal filter of Unit 2 
  gas control system. 
 
· Fukushima Daini Nuclear Power Station:
  (Units 1 to 4: shutdown due to the earthquake)
 
· Kashiwazaki Kariwa Nuclear Power Station: Units 6: under normal operation
  (Units 1 to 5 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 are some minus factors such as the regular inspection of 
Unit 5 at Kashiwazaki-Kariwa Nuclear Power Station. On the other hand, 
there are several plus factors such as the recovery of the common thermal 
power stations which suffered the earthquake. As a result, we expect to 
secure 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 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, February 6, 2012) (PDF 618KB) 
Appendix: Past Progress (From March 11, 2011 to July 31, 2011) (PDF 225KB) 

* Revised past progress