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)

  - From February 2, tendency of temperature rise at the bottom of PCV was 
    observed. Thus, from 0:19 am to 3:20 am on February 7 we injected boric 
    acid into the reactor as a safety countermeasures against the 
    re-criticality, and changed the amount of the core spray system 
    injection water from 3.7m3/h to 6.7m3/h at 4:24 am (the amount of the 
    continuing feed water system injection is 6.8m3/h). Currently, the 
    temperature is approx.66.7°C (as of 5 am on February 8). We will 
    monitor the progress continuously.
  - At around 5:00 am on February 8, the alarm of "abnormally low suction 
    pressure of the high pressure RO pump" in the desalination apparatus  
    for the Unit 2 spent fuel pool went off, and the its operation was 
    automatically stopped. The interlock arrangement closed all the 
    isolation valves in the system, and the alternative cooling system for  
    the spent fuel pool continues its operation. Therefore, there is no  
    impact on the cooling. We also confirmed by the site investigation 
    that there was no leakage from the apparatus. 
  - At 10:00 am on February 8, we started to transfer the water accumulated 
    in the basement of Unit 6 Turbine Building to temporary tanks. 
   
  - As finding of accumulated water containing radioactive materials at 
    the trench between the Process Main Building and the Miscellaneous 
    Solid Waste Volume Reduction Treatment Building [High Temperature 
    Incinerator Building] (December 18, 2011), we started the inspection 
    of other trenches at the site on January 11.
    As a result of the inspection made on February 7, the preliminary 
    results of the nuclide analysis and executed place are as follows:
    · Inside the duct for power cables for the Unit 5 water intake 
      I-131: below the detectible limit, Cs-134: 1.4x10-1 Bq/ cm3,  
             Cs-137: 2.0x10-1 Bq/ cm3 
    · Inside the duct for Unit 5 seawater pipes  
      I-131: below the detectible limit, Cs-134: 8.2x10-2 Bq/ cm3,  
             Cs-137: 1.1x10-1 Bq/ cm3 
    · Inside duct for Unit 5 main transformer cables 
      I-131: below the detectible limit, Cs-134: 7.3x10-2 Bq/ cm3,  
             Cs-137: 1.3x10-1 Bq/ cm3 
    · Inside duct for Unit 5 start-up transformer cables 
      I-131: below the detectible limit, Cs-134: 2.0x10-1 Bq/ cm3,  
             Cs-137: 2.9x10-1 Bq/ cm3 
 
· 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 the facilities damaged by the 
  earthquake are now being handled in a timely manner. 

[Hydro Power Station] 
· Power supply has returned to normal and the facilities damaged by the 
  earthquake are now being handled in a timely manner. 

[Impacts on Transmission Facilities] 
· Power supply has returned to normal and the 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 10:00 am, February 8, 2012) (PDF 407KB) 
Appendix: Past Progress (From March 11, 2011 to July 31, 2011) (PDF 225KB) 

* Revised past progress