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 6:26 pm on June 5, transfer of accumulated water in the Unit 3 turbine 
  building to condenser was initiated. At 10:44 am on June 9, the transfer 
  was completed. 
- At 1:42 pm on June 9, freshwater injection to Unit 3 spent fuel pool 
  using fuel pool cooling and filtering system was initiated(from 1:45 pm 
  to 2:40 pm, hydrazine was also injected). Injection was completed at 
  3:31 pm. 
- At 9:00 am on June 9, transfer of accumulated water in Unit 6 turbine 
  building underground was resumed. 
- From 11:47 am to 12:14 pm on June 9, TEPCO employees entered into Unit 3 
  reactor building and conducted radiation dose survey by Γ camera as a 
  preparation for the nitrogen injection into the PCV. 
- On June 9, using a concrete pumping vehicle, we have been spraying dust 
  inhibitor, which prevents the radioactive materials from dispersing, to 
  the roof and the wall of Unit 1 and 3 turbine building. On June 9, 
  workers have been spraying the dust inhibitor near the main gate. 
- At 10:30 on June 9, water flow test of circulating seawater purification 
  facility located in the Unit 2 and 3 screen area was initiated. The test 
  was completed at 3:00 pm.
 
Fukushima Daini Nuclear Power Station: 
   Units 1 to 4: shutdown due to the earthquake 
 
- At around 6:10 pm on June 8, during the work of draining water stored in 
  the tank, for the purpose of inspection of emergency underground tanks of 
  High-voltage Start-up Transformer, TEPCO employee verified the presence 
  of oil that had leaked to the sea surface around the water discharge 
  canal of Unit 3 and 4, Fukushima Daini Nuclear Power Station. Draining 
  stored water was suspended and oil adsorption mattresses were utilized 
  to prevent the spread of oil. At 9:50 pm on June 8, oil fence barriers 
  were installed and extremely thin oil layer inside the oil fence was 
  observed. Maximum amount of leaked oil was estimated to be 0.5 m3. The 
  cause of leakage is under investigation. Discharged water is all rain 
  water, and discharge was done through a duct, thus there is no discharge 
  of radioactive materials to the sea.
 
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) 
 
It seems that planned outage could be escaped thanks to your understanding 
for brownout. 
 
However 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. 
 
We apologize for the inconvenience this may cause and appreciate for your 
cooperation for brownout. 
 

Appendix: Past Progress (PDF 343KB)
 
* Revised past progress