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)

* With regard to the thermometer placed at the lower part of RPV (top of 
  the lower head 135°) whose trend which showed a different trend while 
  others showed the increasing trend after we decreased the water 
  injection rate to the Unit 2 Reactor from the feed water system on 
  February 22, we reported to Nuclear and Industrial Safety Agency of 
  Ministry of Economy, Trade and Industry on March 1. We will continue 
  monitoring this thermometer.
  ·At 5:00 am on March 8, the temperature of the lower part of the RPV  
   (top of the lower head 135°) : approx. 42.4 °C  
  ·At 5:00 am on March 8, the temperature of the lower part of the RPV  
   (top of the lower head 270°) : approx. 40.3 °C (reference)  
  
* At 1:25 pm on March 6, 2012, the spent fuel pool desalting facility was 
  stopped automatically because of an alert caused by increase of water 
  level of waste water treatment tank. All Isolation valves of desalting 
  facilities were closed by the interlock, 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 leakage of 
  liquid was confirmed. According to our investigation, we confirmed that  
  the increase of the water level had occurred because of the water supply  
  to the waste water treatment tank exceeded the drainage volume, after  
  the treated water by the reverse osmosis membrane unit of the facility  
  continued to increase because of the purification of the water supplied  
  to the facility had proceeded. At 4:04 pm on March 7, we restarted the  
  facility and conducted a test operation, and as there was no problem, we  
  started regular operation at 5:06 pm on the same day.  
  
· Fukushima Daini Nuclear Power Station: 
  Units 1 to 4: shutdown due to the earthquake

* At around 1:55 pm on March 7, at the first basement of Heat Exchanger 
  Building* of Unit 1 (non controlled area) a partner companies' worker 
  found another worker who was engaged in repair work of insulation 
  material of piping was lying. After that, at 2:36 pm on the same day, we 
  requested the helicopter emergency medical service (called "Doctor Heli") 
  and at 3:47 pm on the same day the worker was transferred to Iwaki 
  Kyoritsu Hospital by the Doctor Heli. The worker retained consciousness 
  and suffered no external injury. In addition, we confirmed no 
  radioactive materials were adhered to the worker's body 
  * Heat Exchanger Building:The building installed heat elimination 
    facility by using seawater or coolant water.

· 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]  
We expect to maintain stable power supply in March.
Daily supply and demand balance is announced at our "TEPCO Electricity 
Forecast".  
  

  
Appendix: Past Progress (As of 10:00 am on March 8, 2012) (PDF 469KB)  
Appendix: Past Progress (From March 11, 2011 to July 31, 2011) (PDF 225KB)  
  
* Revised past progress