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.

* 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 1:30 pm on January 12, 2012, we started the injection of hydrazine 
    [corrosion inhibitor] into the Unit 4 spent fuel pool through the 
    circulating cooling system. At 3:14 pm of the same day we finished the 
    injection.

  - In order to install radioactive material treatment instruments at the 
    spent fuel pool of Unit 3, at 9:30 am on January 12, 2012, we stopped 
    cooling the pool by the substitute spent fuel pool cooling system of 
    Unit 3. After we completed the installation of the instruments, at 4:46 
    pm on the same day we restarted the cooling of the pool (temperature of 
    the spent fuel pool: 12.7°C at the time we stopped cooling, 13.1°C 
    after we restarted cooling).

  - At 9:55 am on January 12, we started transferring accumulated water 
    from the basement floor of the 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 7:58 am on January 13 we 
    stopped this transfer. 

  - At 9:59 am on January 12, we started transferring accumulated water 
    from the basement floor of the turbine building of Unit 3 to the 
    Centralized Radiation Waste Treatment Facility (Miscellaneous Solid 
    Waste Volume Reduction Treatment Building [High Temperature Incinerator 
    Building] and the Process Main Building). At 8:03 am on January 13 we 
    stopped this transfer. 

  - Because of the finding of accumulated water included 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. 
    In the inspection conducted on January 12 we confirmed puddle water 
    and the results of nuclide analysis as shown below.
    · Unit 1 chemical tank connecting duct 
      I-131: below measurable limit, Cs-134: 2.4×100Bq/cm3 ,Cs-137: 3.5× 
             100Bq/cm3 
    · Unit 3 transformer cable duct for activation
      I-131: below measurable limit, Cs-134: 4.9×101Bq/cm3 ,Cs-137: 6.9× 
             101Bq/cm3 
    We confirmed that there was no puddle in the duct for radioactive fluid 
    of Unit 3. 

· 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 54.6 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 - 3.1 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, January 13, 2012) (PDF 533KB) 
Appendix: Past Progress (From March 11, 2011 to July 31, 2011) (PDF 225KB)

* Revised past progress