Due to the Tohoku-Chihou-Taiheiyou-Oki Earthquake which occurred on March 
11, 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 17, we have compiled the roadmap towards restoration from the 
accident and then we updated the progress status of roadmap considering 
the current situation, on July 19. Accomplishment of the Step1 target 
"Radiation dose is in steady decline" has been confirmed.
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 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 8:43 am on July 22, because we confirmed that the amount of water 
 injection had been lowered, we adjusted the amount to approximately 
 3.8m3/h.
-At 7:10 am on July 22, the circuit breaker for the bus which supplies 
 electricity to a part of power network in the power station opened the 
 circuit due to overload, resulting in the power off of the following 
 facilities: the alternative cooling facility for spent fuel pool at Unit 
 3, monitoring gauges in the reactor of Unit 3 & 4, water treatment 
 facilities, Main Anti-Earthquake Building, and the cooling facility of 
 common pool. For Main Anti-Earthquake Building, we restore its power 
 supply immediately using backup power generator. For reference, this 
 event did not affect the following operations: water injection and 
 nitrogen gas injection to reactor of each unit, and data of each 
 monitoring post.
-Later, we have switched the power supply source and have resumed power 
 supply for Main Anti-Earthquake Building at 9:33 am on the same day, for 
 monitoring gauges in the reactor of Unit 3 & 4 at 10:35 am, for the 
 cooling facility of common pool at 10:40 am on the same day, the 
 alternative cooling facility for spent fuel pool at Unit 3 at 11:50 am on 
 the same day. Currently, the cause of the event is under investigation.

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]
-Power supply has returned to normal and facilities damaged by the 
 earthquake are now being handled in a timely manner.

[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] 
In regard to the supply side in this summer, taking in account of the 
acceleration of restoration schedule for Hirono Thermal Power Station, 
more purchase of privately generated power, and excluding the power supply 
from 60Hz areas which had been planned (due to the current difficult 
situation), supply capacity outlook is amended to 57.3GW at the end of 
July, and 56.1GW at the end of August.
Also, in order to support the supply and demand balance in the Tohoku area, 
which suffered severe damage from the quake, we would like to supply 
maximum of 1.4GW to Tohoku Electric Power Company by thoroughly 
implementing both supply and demand countermeasures. The supply capacity 
in this regard will be 55.9GW at the end of July, and 54.7GW at the end of 
August.

Estimated peak demand of 55GW for this summer is 5GW lower than that of 
last year. This incorporates the saving of electricity from "Outline of 
Countermeasures for Power Supply and Demand During Summertime" and 
restoration from decrease of production due to the quake.

As the occurrence of unplanned outage of aged thermal power stations or 
sudden increase of demand due to unexpected high temperature during summer 
may cause difficulties in maintaining stable demand supply balance, in 
order to continue to avoid rolling blackouts, we will steadily maintain 
supply capacity, and continue our efforts on reliable operation and 
maintenance of power facilities.

We apologize for the inconvenience this may cause and appreciate for your 
cooperation to save electricity.

Appendix: Past Progress (PDF 215KB)

* Revised past progress