Due to the Tohoku-Chihou-Taiheiyou-Oki Earthquake which occurred on March
11th 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 17th, we have put together the roadmap towards restoration from the
accident. 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)
-We have been calibrating water level gauge of the reactor of Unit 1 since
May 10.
-On May 8, we took approximately 40ml of pool water using concrete pumping
vehicle, in order to check the status within Unit 3 spent fuel pool. On
May 10, we conducted a nuclide analysis with the collected pool water,
and detected Cesium-134, Cesium-136, Cesium-137, and Iodine-131. We will
conduct further detailed analyses.
-From May 10, in order to install an alternative cooling facility of Unit 3,
removal of piles of rubble around carry-in gate for large stuff of the
reactor building by robots and unmanned heavy equipments were conducted.
-From 11:00am to 12:30pm May 10, we conducted water transfer from Unit 6
reactor building to Unit 6 radiation waste treatment building
(Approximately 10 m3).
-At 10:00am May 10, we resumed transfer of Unit 6 turbine building
basement water to the temporary tank. The transfer pump was stopped at
4:00pm (Approximately 120 m3).
-We will conduct a nuclide analysis at Fukushima Daini Nuclear Power
Station, on the water transferred to the Centralized Radiation Waste
Treatment Facility. We are planning to gain cooperation from other
nuclear institutions or corporations.
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]
-Hirono Thermal Power Station Unit 2 and 4: Shutdown due to the earthquake
-Hitachinaka Thermal Power Station Unit 1: Shutdown due to the earthquake
[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.
[Avoidance of further Implementation on Planned Rolling Blackouts and
Request for Conserving Electricity Consumption]
Currently, we are working to restore electricity supply after our nuclear
and thermal power facilities were severely damaged by
Tohoku-Chihou-Taiheiyou-Oki Earthquake. The widespread understanding and
cooperation of our customers to conserve electricity have contributed to
the improvement of this tight power supply-demand balance situation.
Amidst this backdrop, since the electricity supply will be able to balance
with the demand for the time being, we have decided not to implement
further rolling blackouts in principle.
However, we sincerely ask for your continued cooperation in reducing
electricity consumption due to the possible increase in demand caused by
warmer weather or unexpected trouble at power stations that are currently
being restored to service. In case the electricity supply-demand balance
becomes tighter than expected, we may regrettably need to restart the
implementation of rolling blackouts, with prior notice. We kindly ask for
your cooperation.
We will do our best to maintain this policy of avoiding further
implementation of rolling blackouts during the summer.
Appendix: Past Progress (PDF 286KB)
* Revised past progress
