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.
*New items have been 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)
*In order to identify the appropriate injection amount of water in making
the fuels submerged in water, at 10:02 am on April 27th, we started the
operation to gradually change the injection amount of water to the
reactor of Unit 1 from approx. 6 m3/h to approx. 14 m3/h at a maximum.
We are injecting approx 10 m3/h of water to the reactor at 9:00 am,
April 28th.
*At 12:18 pm on April 27th water spray by a concrete pumping vehicle to
the spent fuel pool of Unit 4 was started, and suspended at 2:01 pm. At
2:32 pm water spray was resumed and finished at 3:15 pm, April 27th.
*Out of the soil samples gathered on March 28th, we conducted the
nuclides analysis on two samples from which Plutonium were detected to
confirm Americium and Curium. We detected Americium 241 and Curium 242,
243 and 244.
*On April 27th, we sprayed approx 7,500m2 of the dust inhibitor to the
seaside area of Unit 3 by a remote controlled crawler dump truck.
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 Units 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 109KB)
* Revised past progress