Corporate Information

Press Release (Jun 04,2011)
Status of TEPCO's Facilities and its services after the Tohoku-Chihou-Taiheiyou-Oki Earthquake (as of 9:00 AM, June 4)
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 compiled the roadmap towards restoration from the 
accident and then we updated the roadmap considering the current situation, 
on May 17th. 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) 
- At 6:39 pm on June 3, we started to transfer the accumulated water in the  
  trench of the turbine building of Unit 2 to the condenser hot well in the  
  turbine building.  
- From2:35 pm to 9:15 pm on June 3, fresh water was sprayed into spent fuel 
  pool of Unit 4 by the concrete pumping vehicle (from 2:44pm to 6:58 pm,  
  hydrazine [corrosion inhibitor] was also injected). 
- On June 3, we sprayed dust inhibitor to prevent discharge of radioactive 
  materials to the roof and exterior wall of the reactor building of Unit 3 
  using a bending spray tower vehicle (approximately 4,800 m2).On June 3, 
  we sprayed dust inhibitor to areas including observation point. (approx.  
  8,750 m2).  
- We conducted a nuclide analysis on marine soil collected on June 2 (at 2  
  points, approx. 3km offshore of Fukushima Daiichi and Daini Nuclear Power  
  Stations). As a result, Cesium-134 and Cesium-137 were detected.  
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 
[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. 
[Perspective of Power Supply and Demand Balance in this Summer] 
We have worked to restore electricity supply after our nuclear and thermal 
power facilities were severely damaged by Tohoku-Chihou-Taiheiyou-Oki 
Earthquake. This time, we revised that the supply capacity in this summer 
would increase because we could plan to secure an additional capacity. 
However, in order to maintain the policy of avoiding further implementation 
of rolling blackouts during the summer, in addition to the above increase 
of the supply capacity, we sincerely ask for your continued cooperation in 
reducing electricity consumption. Now we are creating concrete measures 
considering "Outline of Countermeasures for Power Supply and Demand During 
Summertime" presented by the Electricity Supply-Demand Emergency Response 
Headquarters of the Japanese government. 
                                                    (Previously Announced) 
In the event that an unplanned outage such as excessive continuous 
operation in old plants and a sudden increase of power demand due to 
unusual hot temperature occur, there is a possibility to affect a stable 
power supply. In order to maintain the policy of avoiding rolling blackouts, 
we steadily implement to install additional power capacity we have planed, 
and we continuously do our best efforts to secure supply capacity. 
Appendix: Past Progress (PDF 327KB) 
* Revised past progress  
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