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) 

- At 10:50 am on July 16, we stopped the water treatment facility in order
  to flush the system. At 2:38 pm on the same day, we resumed operation of
  the water treatment facility.

- At 10:56 am on July 16, we started transfer of accumulated water from
  the vertical shaft, T/B, Unit 2 to Centralized Radiation Waste Treatment
  Facility (Process Main Building).

- At 10:50 am on July 16, we started transfer of accumulated water from
  the vertical shaft, T/B, Unit 3 to Centralized Radiation Waste Treatment
  Facility (Process Main Building).

- At 11:22 am on July 16, we started freshwater injection to the reactor
  well and the equipment storage pool, Unit 4. At 3:52 pm on the same date,
  we finished freshwater injection.

- At 10:00 am on July 16, we resumed transfer of low level accumulated
  water from temporary tanks to Mega Float that we transferred from T/B,
  Unit 6 to temporary tanks. At 3:00 pm on the same date, we finished
  transfer.

- At 4:01 am on July 16, in connection with the restoration work of 2
  lines of Yonomori Line, we started the Emergency Diesel Generator (B),
  Unit 5 (suspension of external power supply to Units 5 & 6). At 1:05 pm
  on the same date, we stopped the Emergency Diesel Generator (B), Unit 5.

- At 4:21 am on July 16, in connection with the restoration work of 2
  lines of Yonomori Line, we started the Emergency Diesel Generator (B),
  Unit 6 (suspension of external power supply to Units 5 & 6). At 1:51 pm
  on the same date, we stopped the Emergency Diesel Generator (B), Unit 6.

- At 5:28 am on July 16, in connection with the restoration work of 2
  lines of Yonomori Line, we stopped Yonomori Line (suspension of
  external power supply to Units 5 & 6). At 12:05 pm on the same date,
  further to the completion of the restoration work, we resumed receiving
  power from Yonomori Line.

Fukushima Daini Nuclear Power Station:
       Units 1 to 4: shutdown due to the earthquake

- At 11:11 am on July 16, Reactor Coolant Cleanup System* for Unit 1 has
  been restored.
  *Reactor Coolant Cleanup System: this is to remove impurities from
  reactor water and maintain water quality. This is also used to discharge
  redundant water in the reactor in order to control water level during
  maintenance outage and reactor shutdown

Kashiwazaki Kariwa Nuclear Power Station:
       Units 1, 5, 6, 7: normal operation
       (Units 2 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 57.3GW at the end of
July, and 56.1GW at the end of August.
Also, in order to support the supply and demand balance 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 55.9GW at the end of July, and 54.7GW 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 210KB)

* Revised past progress