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 and then we updated the roadmap considering the current
situation, on May 17th. 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 9:00 am on May 27th, we started transferring accumulated water on the
basement of Unit 6's turbine building to temporarily-installed tank again.
-On May 27th, using a bending spray tower vehicle, we have implemented
spraying dust inhibitor, which prevents the radioactive materials from
dispersing, to the roof and the wall of Unit 1's turbine building.
On May 27th, our workers have sprayed dust inhibitor over areas
surrounding Incombustibles Treatment Facility.
Fukushima Daini Nuclear Power Station:
Units 1 to 4: shutdown due to the earthquake
-At approximately 10:01 am on May 27th, a fire broke out at the
distribution panel for lighting at power supply room for High Pressure
Core Spray System on the 1st basement floor of Unit 1's reactor building
annex. At 10:04 am on the same day, workers of partner company
extinguished the fire, and TEPCO's employee confirmed the fire had been
extinguished. We report the incident to the fire station at 10:08 am on
the same day. At 11:19 am on the same day, the fire station staff
confirmed at the site that the fire had been extinguished. This incident
has been judged as a small fire of building.
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]
We have worked to restore electricity supply after our nuclear and thermal
power facilities were severely damaged by Tohoku-Chihou-Taiheiyou-Oki
Earthquake. This time, we revised that the supply capacity in this summer
would increase because we could plan to secure an additional capacity.
However, in order to maintain the policy of avoiding further
implementation of rolling blackouts during the summer, in addition to the
above increase of the supply capacity, we sincerely ask for your continued
cooperation in reducing electricity consumption. Now we are creating
concrete measures considering "Outline of Countermeasures for Power Supply
and Demand During Summertime" presented by the Electricity Supply-Demand
Emergency Response Headquarters of the Japanese government.
(Previously Announced)
In the event that an unplanned outage such as excessive continuous
operation in old plants and a sudden increase of power demand due to
unusual hot temperature occur, there is a possibility to affect a stable
power supply. In order to maintain the policy of avoiding rolling
blackouts, we steadily implement to install additional power capacity we
have planed, and we continuously do our best efforts to secure supply
capacity. 
Appendix: Past Progress (PDF 145KB)
* Revised past progress
