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 1 to 4: shutdown due to the earthquake)

 - On October 27, when a contracted company was conducting the annual 
   checkup of a ceiling crane, which handles used fuel casks, a crack was 
   found on the casing of the connection point of the vehicle for driving. 
   After that, as we found that the damaged part was a crack that occurred  
   at the gear coupling cover of the vehicle's running drive, we completed  
   a replacement of the part with a same kind. On January 25, 2012, we  
   confirmed completion of the crane rehabilitation after we implemented a  
   loading test and made sure there are no abnormalities.

 - At 2:17 pm on January 24, at the desalting facility of the spent fuel 
   pool of Unit 2, an emergency alarm of "RO unit warning" activated, and 
   the system stopped automatically. We are currently checking for cause 
   of the alarm. All of the separation valves of the system were closed by 
   the inter-lock, and the alternative cooling system continues operation. 
   Therefore, there is no influence on cooling, In addition, as a result 
   of the on-site confirmation, no liquid leakage was confirmed. At 3:40  
   pm on January 25, we found there are no abnormalities by resuming the  
   device. Since we could not detect the cause of the alarm warming  
   although we think it resulted from the filter clogging, we will  
   continuously monitor the progress.

 - At 5 :10 pm on January 25, regarding the reactor injection from the  
   feed water system at the Unit 2, we changed the injection line from  
   the pump located uphill to the T/B reactor injecting pump. At 9:47 am  
   on January 26, due to the change of injection duct owned by the pump  
   located uphill, the volume from the feed water system increased from  
   approx. 7.9m3/h to 8.7 m3/h, and the volume from the reactor core  
   system decreased from approx. 1.0m3/h to 0m3/h.

 - At 9 :42 pm on January 25, we transferred the accumulated water from  
   the basement of T/B, Unit 2 to the Centralized Waste Treatment Facility  
   (Miscellaneous Solid Waste Volume Reduction Treatment Building [High  
   Temperature Incinerator Building] and Process Main Building). At 8:13  
   am on January 26, the transfer was paused.

 - At 9 :53 pm on January 25, we transferred the accumulated water from  
   the basement of T/B, Unit 3 to the Centralized Waste Treatment Facility  
   (Miscellaneous Solid Waste Volume Reduction Treatment Building [High  
   Temperature Incinerator Building] and Process Main Building). At 8:18  
   am on January 26, the transfer was paused.

 - Because of the finding of accumulated water included radioactive 
   materials at the trench between the Process Main Building and 
   Miscellaneous Solid Waste Volume Reduction Treatment Building [High 
   Temperature Incinerator Building] (December 18, 2011), we started 
   inspecting the other trenches on the grounds of the power station on 
   January 11.

 - As a result of the inspection carried out on January 25, the nuclides 
   analyzed at the locations where the accumulated water was discovered 
   are as follows (advance report):
 - Inside of the connecting duct of Unit 1 Waste Liquid Surge Tank 
   I-131: below measurable limit, Cs-134 :approx. 1.2 x 101Bq/cm3,  
   Cs-137 :approx. 1.5 x 101Bq/cm3 
 - Inside of the main transformer cable duct 
   I-131: below measurable limit, Cs-134 :approx. 1.5 x 100Bq/cm3,  
   Cs-137 :approx.2.3 x 100Bq/cm3 
 - Inside of the fire extinguishing duct trench 
   I-131: below measurable limit, Cs-134 : below measurable limit,  
   Cs-137 :approx.1.0 x 10-1Bq/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 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 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.

* Correction of Description in [Impacts on Power Supply and Demand Balance]
We described,"there will be some minus factors such as the regular 
inspection of Unit 5 at Kashiwazaki-Kariwa Nuclear Power Station" in the 
previous press release. However, because Unit 5 of Kashiwazaki-Kariwa 
Nuclear Power Station has already conducted a regular inspection since 
January 25, we revise the previous sentence to "there are some minus 
factors such as the regular inspection of Unit 5 at Kashiwazaki-Kariwa 
Nuclear Power Station". We would like to apologize for the correction 
(February 8, 2012). 

Appendix: Past Progress (As of 10:00 am, January 26, 2012) (PDF 362KB) 
Appendix: Past Progress (From March 11, 2011 to July 31, 2011) (PDF 225KB) 
 
* Revised past progress