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 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) 

- Due to the change of onsite power source structure after the restoration 
  of Okuma No. 2 line, power source to electromagnetic valve in Unit 1 
  nitrogen injection line was switched. Due to the switch, nitrogen 
  injection was temporarily suspended at 9:14 am May 25th and was resumed 
  at 9:18 am May 25th. 

- Due to the stoppage of temporary power panel associated with the above 
  structure change, transfer of water from vertical shaft of Unit 2 
  turbine building to centralized radiation waste treatment facility was 
  suspended at 9:05am May 25th. 

- Transfer of accumulated water from Unit 3 turbine building to 
  centralized radiation waste treatment facility (miscellaneous solid 
  waste volume reduction treatment building) was suspended at 9:10am May 
  25th in order to check the transfer lines and buildings. 

- On May 25th, we have sprayed dust inhibitor to areas including nearby 
  Solid Waste Storing Facility.

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 326KB) 

* Revised past progress