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) 
 
- At 1:28 pm on May 15, we have increased the amount of freshwater 
  injected into the reactor from approximately 8m3/h to approximately 
  10m3/h so that we can monitor the trend shift of parameters of the 
  Reactor Pressure Vessel as well as the Primary Containment Vessel, the 
  shift which would be resulted from the increase of the amount of 
  injected freshwater. 
 
- At 2:33 pm on May 15, we started injecting boric acid through the fire 
  extinction system. 
 
- From 10:00 am to 3:00 pm on May 15th, we transferred accumulated water 
  on the basement in the turbine building of Unit 6 to the temporary tank. 
  (approximately 100m3) 
 
- On May 15th, we are spraying dust inhibitor to areas including nearby 
  Solid Waste Storing Facility in a conventional method.

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
- Hitachinaka Thermal Power Station Unit 1: At 4:00 am on May 15, 
  recommencement of operation (Was 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 296KB) 
 
* Revised past progress