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 10:00 am on January 16, we started the transfer of the accumulated 
    water in the underground of Unit 6 turbine building to temporary tank. 
    At 4:00 pm on the same day, we stopped the transfer. 

  - As finding a puddle 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 of January 16, the locations where 
  accumulated water was discovered and the nuclide analysis results 
  (preliminary results) are as follows: 
  · The Unit 1 water intake power cable duct 
    I-131:below measurable limit, Cs-134:2.3×100Bq/cm3, Cs-137:3.2× 
          100Bq/cm3 
 
  - At 7:04 pm on January 16, 2012, we adjusted the amount of the water 
    injection from approx. 1.8 m3/h to approx. 2.0 m3/h through the reactor 
    feed water system, from approx. 7.6 m3/h to approx. 7.0 m3/h through 
    the core spray system since we confirmed volatility of the amount of 
    the water injection into the Unit 3 reactor. 

  - At 9:13 am on January 16, we suspended the second cesium absorption 
    apparatus due to reverse cleaning of the filters because the amount of 
    disposal water of the second cesium absorption apparatus decreased 
    gradually. We restarted the apparatus at 12:12 pm on the same day. At 
    12:17 pm on the same day, the flow rate reached steady state (approx. 
    28m3/h).  

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

  - At 2:28 pm on January 16, we stopped the Residual Heat Removal System 
    (System A) of Unit 1 due to the switching work from System A to System 
    B. At 2:47 on the same day, we started System B. 

· 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 17, 2012) (PDF 315KB) 
Appendix: Past Progress (From March 11, 2011 to July 31, 2011) (PDF 225KB) 

* Revised past progress