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) 

- There is no affect by the earthquake which occurred around Fukushima
  prefecture offshore at approximately 3:54 am on July 31 (M6.4).
  ·No anomalous value in main parameters of each unit.
  ·No affect to the following operations: water injection and nitrogen gas
   injection to a reactor of each unit, and data of each monitoring post.
- At 5:01 am on July 31, we adjusted the amount of water injection in each
  Unit to approx. 3.7 ㎥/h since we confirmed a decrease in the amount of
  water injected to reactor in Unit 1 and 2.
- At 4:10 pm on July 30, we started transferring accumulated water at Unit
  2 turbine building to Centralized Radiation Waste Treatment Facility.
- At 4:13 pm on July 30, we started transferring accumulated water at Unit
  3 turbine building to Centralized Radiation Waste Treatment Facility.
- From 10:00 am to 5:00 pm on July 30, we implemented the operation for
  transferring low level accumulated water from temporary tank to Mega
  Float which was previously transferred from turbine building of Unit 6 to
  temporary tank.
- From 11:00 am to 4:00 pm on July 30, we implemented the operation for 
  transferring accumulated water in turbine building of Unit 6 to temporary
  tank.

Fukushima Daini Nuclear Power Station:
   Units 1 to 4: shutdown due to the earthquake
- At 6:32 am on July 31, air leak was found at the weld zone of unit 4's
  main emission duct by TEPCO employee. Radioactive materials in the air
  were below measurable limits. No outlier at main emission monitor and
  monitoring post. This is the same place repaired on June 7. The repair
  work will be implemented soon.

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 224KB)

* Revised past progress