Due to the Tohoku-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. 
 
Below is the status of TEPCO's major facilities. 
*New items 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) 
 
*From 7:35PM on April 12, we started transferring accumulated water in 
Turbine Building from the trench of Unit 2 to the condenser. At 11:00AM 
on April 13, we stopped transferring accumulated water to check whether 
there was water leakage from condenser or not. We didn't find any problem, 
so we restarted transferring at 15:02PM of the same day. At 17:04PM, the
scheduled transfer was completed. 
 
Fukushima Daini Nuclear Power Station: 
  Units 1 to 4: shutdown due to the earthquake 
 
*As radiation dose measured at site boundary exceeded the threshold 
amount, it was determined on March 14 and 15 that a specific incident 
stipulated in article 10, clause 1(increase of radiations dose at site 
boundary) occurred. However, the measured amount has been below the 
threshold amount of 5 μSv/h afterwards. Site will be under continuous 
surveillance. 
 
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 
-Kashima Thermal Power Station Unit 6: 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-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, in principle, we have decided not to implement 
further rolling blackouts. However, we must 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, as stated, we may reluctantly restart the implementation of 
rolling blackouts. 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 136KB) 
 
* Revised past progress