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 roadmap considering the current situation, 
on June 17. 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 10:09 am on July 13th, we started to transfer contaminated water from 
 the trench of unit 2 to Centralized Radiation Waste Treatment Facility 
 (Process Main Building). 
-At 11:50 am on July 13th, we started to inject fresh water into the 
 reactor well of Unit 4 and equipment storage pool. We found some leakage 
 from the connection part of the hose in the water injection line and 
 therefore stopped the injection at 0:45 pm on the day.
-As a countermeasure against seawater leakage from the piping of the 
 outside temporary residual heat removal seawater system of the residual 
 heat removal system of the Unit 5 occurred on July 3, we bound the piping 
 tightly. However we found the similar part after reconfirmation of the 
 site, in terms of preventive maintenance, we stopped the residual heat 
 removal system at 6:30 am on July 13, stopped outside temporary seawater 
 cooling pump at 6:44 am, and then replaced the piping. We restarted the 
 residual heat removal system at 10:58 am. (outside temporary seawater 
 cooling pump restarted at 10:52 am)
-At 10:00 am on July 13, we started transferring low radioactive 
 accumulate water in the outside temporary tanks to the Mega Float.
-At 1:00 pm on 13th July, transportable monitoring post recorded zero. We 
 checked monitoring equipment and resumed at 2:55 pm on the day.
-At 11:00 am on July 13th, water treatment facility was stopped for system 
 flashing. At 1:07 pm, we confirmed the leakage at the chemical injection 
 line of the coagulation settling equipment of the water treatment 
 facility and flashing was paused. Water injection into the reactor is 
 continued.

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 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] 
In regard with 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 56.8GW at the end of 
July, and 55.6GW at the end of August.
Also, in order to support balance of demand and supply 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 55.4GW at the end of July, and 54.2GW 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 243KB)

* Revised past progress