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 6:38 am on July 15th, we found that cooling makeup water was not
 sprayed in the cooling tower in the second order of circulating cooling
 system in the spent fuel pool for Unit 2. At 8:22 am on the same day we
 stopped the circulating pumps in the second order cooling tower and the
 fans. After that, we confirmed the feed water valves from the filtering
 water tanks are closed. At 11:47 am on the same we opened the valves and
 confirmed feeding water from the filtering water tanks and resumed
 operating the circulating pump and the fans.

-At 8:55 am on July 15th, as we found decrease of the volume of water
 injection into the reactor of Unit 1, we increased the injection volume
 to approx. 3.8㎥/h.

-At 10:00 am July 15, we resumed transferring low radioactive accumulate
 water, which had been transferred from Unit 6 turbine building to
 temporary tanks, from temporary tanks to the Mega Float.

-At 10:16 am on July 15, we activated pumps of main residual heat removal
 seawater system (system B) of Unit 5 and began a trial run.

-From 10:09 am on July 13th to 11:02 am on July 15th, we transferred the
 accumulated water from the vertical shaft of the Unit 2 turbine building
 to Centralized Radiation Waste Treatment Facility (Process Main Building)

-From 3:15 pm on July 10th to 11:11 am on July 15th, we transferred the
 accumulated water in the basement of the Unit 3 turbine building to
 Centralized Radiation Waste Treatment Facility (Process Main Building)

-At 1:05 pm on July 15th, we exchanged injection hoses with new ones and
 started injecting fresh water in the reactor well and equipment storage
 pool.

-At 5:14 am on July 15th, we stopped the facility in order to investigate 
 the causes of decrease of rated flow volume of water treatment. At 2:21
 pm on the same day we resume activating the facility.

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.
 *With regard to Unit 4 of Hirono Thermal Power Station, we mistakenly
  announced that we have been generating electricity since 5:17 pm on
  July 14th. Correctly, we have been generating electricity since 5:14
  pm on July 14th. Please accept our sincere apologies for this.

[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 399KB)

* Revised past progress