Corporate Information

Press Release (Apr 29,2011)
Status of TEPCO's Facilities and its services after the Tohoku-Chihou-Taiheiyou-Oki Earthquake (as of 4:00PM, April 29)
Due to the Tohoku-Chihou-Taiheiyou-Oki Earthquake which occurred on March 
11th 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 17th, we have put together the roadmap towards restoration from the 
accident. By bringing the reactors and spent fuel pools to a stable cooling
condition and mitigating the release of radioactive materials, we will make
every effort to enable evacuees to return to their homes and for all 
citizens to be able to secure a sound life.

Below is the status of TEPCO's major facilities.
*New items have been underlined 
 [Nuclear Power Station]
Fukushima Daiichi Nuclear Power Station: 
  Units 1 to 3: shutdown due to the earthquake
  (Units 4 to 6: outage due to regular inspections) 

*In order to identify the appropriate amount of injected water to submerge
 the fuel in the reactor, we started changing the amount of water gradually
 from approx. 6m3/h at 10:02 am, April 27th. From 10:14 am, April 29th, we 
 put the amount of injecting freshwater back to approx. 6m3/h and continue 
 injecting freshwater. 

*On April 25th, the monitoring at 5 locations at the offshore area of 
 Ibaraki Prefecture was launched by Ministry of Education, Culture, Sports, 
 Science and Technology. As part of its monitoring, Japan Coast Guar has 
 conducted the sampling in seawater on April 29th. We, Tokyo Electric Power 
 Company, have conducted the nuclide analyses of that seawater. 
 Iodine -131, Cesium -134 and Cesium -137 were detected. We will conduct 
 evaluation in detail hereafter. 

*At 10:08 am on April 19th, transferring the wastewater from the vertical 
 shaft of the turbine building of Unit 2 to the Centralized Radiation Waste
 Treatment Facility was started. In order to check the transferring 
 facilities and enhance the investigating function, transferring was 
 temporarily suspended at 9:16 am on April 29th. 

*On April 29th, spraying the dust inhibitor to prevent the diffusion of 
 radioactive material on the ground surface was conducted at the east side 
 of turbine building of Unit 4 at a total range of approximately 7,000m2 
 using the unmanned crawler dump truck. On April 29th, spraying the dust 
 inhibitor was conducted as the same method before at the mountain side of 
 the reactor building of Unit 5 at a total range of approximately 5,800m2. 

*From 11:36 am to 2:05 pm on April 29, we have checked the status inside 
 the reactor building of Unit 1 using remotely-controlled robot and 
 confirmed that there was no significant water leakage from the primary 
 containment vessel. 
 Fukushima Daini Nuclear Power Station: 
  Units 1 to 4: shutdown due to the earthquake 
 Kashiwazaki Kariwa Nuclear Power Station: 
  Units 1, 5, 6, 7: normal operation 
  (Units 2 to 4: outage due to regular inspection) 
 [Thermal Power Station] 
- Hirono Thermal Power Station Units 2 and 4: Shutdown due to the earthquake
- Hitachinaka Thermal Power Station Unit 1: Shutdown due to the earthquake 
 [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. 
 [Avoidance of further Implementation on Planned Rolling Blackouts and 
Request for Conserving Electricity Consumption] 
Currently, we are working to restore electricity supply after our nuclear 
and thermal power facilities were severely damaged by 
Tohoku-Chihou-Taiheiyou-Oki Earthquake. The widespread understanding and 
cooperation of our customers to conserve electricity have contributed to 
the improvement of this tight power supply-demand balance situation.
Amidst this backdrop, since the electricity supply will be able to balance 
with the demand for the time being, we have decided not to implement 
further rolling blackouts in principle.
However, we sincerely ask for your continued cooperation in reducing 
electricity consumption due to the possible increase in demand caused by 
warmer weather or unexpected trouble at power stations that are currently 
being restored to service. In case the electricity supply-demand balance 
becomes tighter than expected, we may regrettably need to restart the 
implementation of rolling blackouts, with prior notice. We kindly ask for 
your cooperation.
We will do our best to maintain this policy of avoiding further 
implementation of rolling blackouts during the summer. 
Appendix: Past Progress (PDF 110KB) 

* Revised past progress 
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