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 4 to 6: outage due to regular inspections before the earthquake) 
 
- At 10:00 am on February 20, we started transfer of the accumulated water 
  at the Unit 6 Turbine Building basement to the temporary tank . At 4:00 
  pm on the same day, we stopped the transfer. At 10:00 am on February 21, 
  we started the transfer. 
 
- According to the investigation on trenches on January 19, 2012, high 
  density contaminated water inside was found inside circulating water 
  pump discharge valve pit of Unit 2 water pump room Therefore, at 10:11 
  am on February 20, 2012, we started transfer of the accumulated water 
  from the pit to the basement of Unit 2 Turbine Building. At 5:11 pm on 
  the same day, we stopped the transfer. At 9:50 am on February 21, we 
  started the transfer. 
 
- With regard to the water injection volume for Unit 2 reactor, which was 
  increased with temperature figure raising, we adjusted the original 
  volume before temperature increasing (Feed water system: approx. 3.0m3/h, 
  core spray system: approx. 6.0m3/h). At 7:19 pm on February 20, we 
  changed the water injection volume from feed water system from approx. 
  7.6m3/h to approx. 5.6m3/h (The water injection level from core spray 
  system is continuing at approx. 6.0m3/h) 
 
- At 9:40 am on February 21, at the centralized radiation waste treatment 
  facility, we started transfer of accumulated water from site banker to 
  process main building. 
 
·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 the facilities damaged by the 
earthquake are now being handled in a timely manner. 
 
 [Hydro Power Station] 
Power supply has returned to normal and the facilities damaged by the 
earthquake are now being handled in a timely manner. 
 
 [Impacts on Transmission Facilities] 
Power supply has returned to normal and the 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 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 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 on February 21, 2012) (PDF 439KB) 
Appendix: Past Progress (From March 11, 2011 to July 31, 2011) (PDF 225KB) 
 
* Revised past progress