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)

 * On December 18, 2011, we found accumulated water in the trench located 
   between the process main building of Centralized Radiation Waste 
   Treatment Facility and Miscellaneous Solid Waste Volume Reduction 
   Treatment Building (High Temperature Incinerator Building). After that 
   we confirmed that water inflow from cable duct near the ceiling of the 
   trench. As a result of the inspection, the cable duct was used for the 
   PHS line and led to the electric wire duct line of the outdoor lighting, 
   and we estimated that the puddle of water near the lighting flowed 
   through the opening of electric wire duct line which was damaged by a 
   tsunami, into the trench. On January 5, 2012, we cut the cable duct 
   line and carried out water stops work with seal materials and seal tape 
   at both entrance and exit sides of the duct line. On January 6, we 
   confirmed that there is no inflow of the water into the trench from the 
   cable duct line. For the concerned trench, we will investigate for the 
   identification the leak in point of the highly-concentrated radioactive 
   contaminated water sequentially, and examine and carry out the 
   investigation to determine the causes and recurrence preventive 
   measures, and carry out the check for other trenches in the Fukushima 
   Daiichi Nuclear Power Plant. 

· 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 54.9 GW (at the end of December), 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 - 3.4 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 7, 2012) (PDF 463KB) 
Appendix: Past Progress (From March 11, 2011 to July 31, 2011) (PDF 225KB) 
 
* Revised past progress