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)

-From 11:10 am on May 29th, we started spraying freshwater into the spent 
 fuel pool of Unit 1 through Fuel Pool Cooling and Filtering System, and 
 finished at 3:35 pm. 
-From 11:33 am on May 29th, we started water injection to the reactor of 
 Unit 2 through reactor feed water system at approximately 5 m3/h. (water 
 injection through fire extinction system is continued at approximately 
 7 m3/h.) 
-At 9:14 pm on May 28th, we found that one temporary residual heat removal
 system seawater pump of Unit 5 stopped. At 8:12 am on May 29th,
 replacement work to the spare pump started. After finishing the 
 replacement work, we started the pump at 12:31 pm, and restarted cooling 
 from 12:49 pm. 
-At 9:00 am on May 29th, we restarted transferring accumulated water in 
 the basement of Unit 6 turbine building to the temporary tank. 
-On May 29th, we sprayed dust inhibitor for the area of 8,750m2, over the 
 surrounding area of Main Gate. 
 Correction: Place of dust inhibitor, which was described at 
 "Incombustibles Treatment Facility" in press releases of May 28th (as of 
 3:00 pm) and after, is corrected as "Solid Waste Storing Facility." We 
 apologize for any inconvenience this may cause.

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 317KB) 

* Revised past progress