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 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)

 - Since February 2, a significant temperature rise at the bottom of the 
   PCV of Unit 2 has been observed. The current temperature is 89.6°C (at  
   5:00 am of February 13) . We will continue monitoring the temperature 
   tendency.
 - At 5:01 pm on February 12, we sampled the gas of the gas control system  
   of Unit 2 Primary Containment Vessel. The density of Xenon 135 at the  
   entrance of the system was below the detection limit (9.3x10-2Bq/cm3).  
   Since it is below 1Bq/cm3, which is the threshold for judging  
   re-criticality, we confirmed the reactor didn't go re-critical. 
 - Since we confirmed a change in the amount of water injection to the Unit  
   2 nuclear reactor, at 7:30 pm on February 12, we changed the amount of  
   the water injection from the feed water system from 7.1m3/h to 7.5m3/h  
   and water injection from the core spray system from 10.0m3/h to 9.9m3/h. 
 - Since we confirmed a change in the amount of water injection to the Unit  
   2 nuclear reactor, at 9:50 am on February 13, we changed the amount of  
   the water injection from the feed water system from 7.0m3/h to 7.5m3/h  
   (water injection from the core spray system maintained at 9.9m3/h).

· 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 13, 2012) (PDF 426KB) 
Appendix: Past Progress (From March 11, 2011 to July 31, 2011) (PDF 225KB) 

* Revised past progress