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 9:25 am on January 10, second Cesium adsorption apparatus was stopped 
  to backwash the filter because there was a gradual downward tendency. At 
  12:58 pm on the same day, the apparatus was started up and it achieved 
  the steady flow (approx. 36 m3/h) at 1:04 pm.

 *At 10:05 am on January 10, because of the replacement work of the water 
  injection piping arrangement from the water feed system in association 
  with the commissioning of reactor injection pump in Turbine Building of 
  Unit 3, we have controlled the amount of injected water to the reactor 
  gradually. The amount of injected water to the reactor of Unit 3 from 
  the reactor feed water system was adjusted from approx. 3.0 m3/h to 
  approx. 2.0 m3/h, and the amount from the core spray system was adjusted 
  from approx. 6.0 m3/h to approx. 7.0 m3/h. 

 *At 10:28 am on January 10, TEPCO staff found a leakage of water from the 
  packing at the bottom of the tank of the concentrated water storage at 
  water desalinations (reverse osmosis membrane type), which was about one 
  drop in one second. The amount of leaked water is approx. 10 litter and 
  is staying on the concrete. After retightening of the bolt at the joint 
  of the tank, we confirmed the leakage was stopped around 12:35 pm on 
  January 10. In addition, sandbags were piled around the water pond to 
  protect its expansion. Because water leaked from waste storage tank, it 
  does not need to stop the water treatment system and there was no impact 
  to the water injection to reactor.

 *At 1:38 pm on January 10, it has started the hydrazine injection to the 
  spent fuel pool of Unit 2 by using circulating cooling system. 

·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 3:00 pm, January 10, 2012) (PDF 317KB) 
Appendix: Past Progress (From March 11, 2011 to July 31, 2011) (PDF 225KB) 
 
* Revised past progress