Corporate Information

Press Release (May 11,2011)
Status of TEPCO's Facilities and its services after the Tohoku-Chihou-Taiheiyou-Oki Earthquake (as of 9:00 AM, May 11)
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.
*Updates from previous press release are 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) 
-We have been calibrating water level gauge of the reactor of Unit 1 since 
 May 10.
-On May 8, we took approximately 40ml of pool water using concrete pumping 
 vehicle, in order to check the status within Unit 3 spent fuel pool. On 
 May 10, we conducted a nuclide analysis with the collected pool water, 
 and detected Cesium-134, Cesium-136, Cesium-137, and Iodine-131. We will 
 conduct further detailed analyses. 
-From May 10, in order to install an alternative cooling facility of Unit 3, 
 removal of piles of rubble around carry-in gate for large stuff of the 
 reactor building by robots and unmanned heavy equipments were conducted. 
-From 11:00am to 12:30pm May 10, we conducted water transfer from Unit 6 
 reactor building to Unit 6 radiation waste treatment building 
 (Approximately 10 m3). 
-At 10:00am May 10, we resumed transfer of Unit 6 turbine building 
 basement  water to the temporary tank. The transfer pump was stopped at 
 4:00pm (Approximately 120 m3).
-We will conduct a nuclide analysis at Fukushima Daini Nuclear Power 
 Station, on the water transferred to the Centralized Radiation Waste 
 Treatment Facility. We are planning to gain cooperation from other 
 nuclear institutions or corporations.
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 Unit 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 286KB) 
* Revised past progress 
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