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 roadmap considering the current situation,
on June 17. 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)
- On July 4, we completed to set steel plates aimed at dose reduction at
truck bay door on 1st floor of Reactor Building Unit 3.
- At 9:13 am on June 4, we started freshwater injection to reactor well and
temporary storage pool of unit 4. We stopped injecting water at 6:18 pm
on same day.
- From 10:00 am on July 4, we restarted transferring accumulated water from
inside of turbine building of Unit 6 to temporary tank. We stopped
transferring at 4:00 pm on same day.
- From 1:30 pm on July 4, we restarted transferring low radioactive stored
water from outdoor temporary tank to Mega Float. We stopped transferring
at 5:00 pm on same day.
- At 5:18 pm on July 4, as water level of the buffer tank that treated
water at accumulated water treatment facility go through to inject water
to the reactor rose near control level, we activated the pump for
transferring treated water to the buffer tank.
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
[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 with 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 56.8GW at the end of July, and 55.6GW
at the end of August.
Also, in order to support balance of demand and supply 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 55.4GW at the end of July, and 54.2GW 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 190KB)
* Revised past progress