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. 
 *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) 

- Since May 2nd, we have been working to install the ambient air filtration 
  system to improve the work environment in the reactor building of Unit 1.
- At 10:00 am on May 2nd, we resumed transfer water accumulated in the 
  basement of turbine building of Unit 6 to a temporary tank. At 4:00 pm on 
  the same day, a pump to transfer water was stopped (approx. 220 m3). 
- On May 2nd, an unmanned crawler dump truck sprayed dust inhibitor to 
  prevent radioactive materials on the ground from flying to approximately 
  4,000 m2 areas in the south and west side of the reactor building of 
  Unit 4. On May 2nd, we also sprayed dust inhibitor to approximately 
  5,500 m2 areas in the slope surrounding the former Administration Office 
  building by conventional method. 
      We described the building as "the turbine building of Unit 4" in the 
      previous materials on and after 3:00 pm, May 1st, but it was an error. 
      We mean "the reactor building of Unit 4." We would like to apologize 
      for the error and correct it.

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

[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 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 152KB) 

* Revised past progress