Corporate Information

Press Release (Apr 20,2011)
Status of TEPCO's Facilities and its services after the Tohoku-Chihou-Taiheiyou-Oki Earthquake(as of 9:00AM, April 20th)
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) *From 4:08 pm to 5:28 pm on April 19th, injections of water were conducted with a temporary motor driven pump into the spent fuel pool of Unit 2. *On April 16th, in order to check the condition of the water in the spent fuel pool in Unit 2 for the purpose of designing temporary cooling equipment that we are planning to install in the pool of Unit 2, we collected and conducted a nuclide analysis of approximately 400 ml of water that flowed out of the pool into the skimmer surge tanks**.The results revealed the presence of iodine-131, cesium-134, and cesium-137. We are going to evaluate these results in further detail. ** skimmer surge tanks: 2 tanks installed between the spent fuel pool and the nuclear reactor well to store the water that overflows from the pool and the well.
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 -Kashima Thermal Power Station Unit 6: resumed generating electricity at 4:10 am on April 20th
[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 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, 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 93.0KB)
* Revised past progress
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