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. On August 17, we updated the
further progress.
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.
*New items 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 12:20 pm on August 18, we added and replaced flow regulating valves
of water injection line of unit 3.
At 12:27 on the same day, we adjusted the rate of water injection to the
reactor at approx. 8.0 m3/h.
- At 10:00 am on August 18, we restarted the transferring of accumulated
water at the underground of Unit 6 turbine building to temporally tank.
- At 2:30 pm on August 18, we confirmed the instrument reading of
transportable monitoring post that was measuring dose rate of main gate
of the power station became unreadable. We are currently investigating
the situation on the ground.
Fukushima Daini Nuclear Power Station:
Units 1 to 4: shutdown due to the earthquake
Kashiwazaki Kariwa Nuclear Power Station:
Units 5, 6, 7: normal operation
(Units 1 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 56.1GW at the end of
August.
Also, in order to ensure the supply and demand balance in the Tohoku area
that have sustained severe damages from the earthquake and torrential rains,
we would like to supply maximum electricity to Tohoku Electric Power
Company by thoroughly implementing both supply and demand countermeasures.
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 planned 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.
![](../../images/dot_w720.gif)
Appendix: Past Progress (As of 3:00 pm, August 18, 2011) (PDF 43.3KB)
Appendix: Past Progress (From March 11, 2011 to July 31, 2011)(PDF 419KB)
* Revised past progress