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 5:50 pm on August 4, decrease of water injection volume into Unit 2 
  reactor was confirmed and it was adjusted to approx. 3.8 m3/h.
- At 8:42 am on August 5, we started transferring accumulated water from 
  the basement of Unit 3 turbine building to Centralized Radiation Waste 
  Treatment Facility (Process Main Building).
- At 5:32 am on August 4, we stopped operation of the water treatment 
  facility in order to improve the flow rate. After the work to improve 
  the flow rate, we started the water treatment facility at 3:30 pm and 
  water treatment at 4:13 pm on the same day.
- At 6:55 pm on August 4, decontamination facility automatically stopped 
  due to the stop of chemical injection pumps for ultra-high speed 
  coagulation sedimentation facility and we stopped the water treatment 
  facility. We checked the soundness of the stopped pumps and started water 
  treatment facility at 8:30 pm, and water treatment at 8:50 pm on the same 
  day.
- At 2:12 am on August 5, a process error alarm was generated and we 
  stopped the water treatment facility. We started the water treatment 
  facility at 4:03 am and water treatment at 4:21 am on the same day.
- Around 7 pm on August 4, leakage was found from the flange of the hoses 
  to transfer filtrate water which has been used for salt cleansing in the 
  vessel of cesium adsorption facility at On-site Bunker Building. The 
  cause is under investigation.
- At 3:32 pm on August 4, we started fresh-water injection using 
  alternative water injection line in order to fill Skimmer Surge Tank of 
  Unit 4 with water and finished the injection at 3:32 pm on the same day.

Fukushima Daini Nuclear Power Station:
  Units 1 to 4: shutdown due to the earthquake

- At 9:31 am on August 4, we started a regular inspection about one of the 
  7 monitoring posts (No.3) installed around the site boundary and 
  completed at 6 pm on August 4.
 
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 57.2GW 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 55.8GW 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 230KB)

* Revised past progress