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 September 20,
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.
*Updates are underlined
[Nuclear Power Station]
-Fukushima Daiichi Nuclear Power Station Unit 1 to 3: shut down due to the
earthquake
(Units 4 to 6: outage due to regular inspections)
*Because a decrease in the amount of water was confirmed at the residual
heat removal system seawater pump (C) of Unit 6, the cooling of the
reactor using residual heat removal system (A) was stopped at 2:42 pm on
October 14, and after that we stopped the residual heat removal system
seawater pump (C). Later on, we restarted the residual heat removal
system seawater pump (C) and confirmed that it returned to a
predetermined performance. Thus, we restarted to cool the reactor using
residual heat removal system (A) at 3:23 pm on the same day. Due to this
suspension, the water temperature of the reactor temporarily rose to
23.3°C from 22.6°C.
*At 10:00 am on October 14, we started to transfer the accumulated water
from Turbine Building of Unit 6 to the temporary tanks and finished it at
4 pm on the same day.
-Fukushima Daini Nuclear Power Station:
Units 1 to 4: shutdown due to the earthquake
-Kashiwazaki Kariwa Nuclear Power Station:
Units 5, 6: under normal operation
(Units 1 to 4 and 7: outage due to regular inspections)
[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.
[Impacts on Power Supply and Demand Balance]
Thanks to our all customer's energy-saving efforts, we could successfully
maintain an even supply-demand balance in this summer. We express our
deepest appreciation to the efforts.
While we will continue to exert maximum effort to stabilize the
supply-demand balance, we kindly request your continued efforts in keeping
electricity consumption within reasonable levels.
Appendix: Past Progress (As of 9:00 am on October 15, 2011) (PDF 253KB)
Appendix: Past Progress (From March 11, 2011 to July 31, 2011)(PDF 225KB)
* Revised past progress