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, 2011, we have compiled the roadmap towards restoration from the
accident and on July 19 we accomplished the Step1 target "Radiation dose
is in steady decline". Then on December 16 we confirmed the accomplishment
of the Step 2 target "Release of radioactive materials is under control
and radiation doses are being significantly held down".
In addition, on December 21, 2011, we have compiled the "Mid-to-long-Term
Roadmap toward the Decommissioning of Fukushima Daiichi Nuclear Power
Units 1-4, TEPCO".
In addition to the maintenance of the plant's stable condition, we will
implement Mid-to-Long Term countermeasures towards the decommissioning of
Fukushima Daiichi Nuclear Power Units 1-4 to enable evacuees to return to
their homes as soon as possible and reduce the anxiety of the people in
Fukushima and the whole nation as soon as possible.

Below is the status of TEPCO's major facilities.

* Updates since the previous press release underlined.

[Nuclear Power Station] 
·Fukushima Daiichi Nuclear Power Station: Unit 1 to 3: shut down due to
 the earthquake
  (Units 4 to 6: outage due to regular inspections)

* On January 18, 2012, we conducted sampling of gas at the Primary 
  Containment Vessel gas administration system. As a result of the 
  analysis, we confirmed that the density of Xenon 135 at the entrance of 
  the system was below the detection limit (1.1x10-1 Bq/cm3), below the 
  recriticality determination threshold, 1 Bq/cm3.

* At 10:20 am on January 19, 2012, in order to switch injection piping of 
  reactor injection pump on the hill of Unit 3, gradual adjustment of the 
  amount of water injection to the reactor has been made. Injection amount 
  from the reactor feed water system is adjusted from approx. 3.0 m3/h to 
  approx. 4.0 m3/h. Also, injection amount from the core spray system is 
  adjusted from approx. 6.0 m3/h to approx. 5.0 m3/h.

* At 10:45 am on January 19, 2012, in order to switch injection piping of 
  reactor injection pump on the hill of Unit 2, gradual adjustment of the 
  amount of water injection to the reactor has been made. Injection amount 
  from the reactor feed water system is adjusted from approx. 2.8 m3/h to 
  approx. 4.0 m3/h. Also, injection amount from the core spray system is 
  adjusted from approx. 7.0 m3/h to approx. 6.0 m3/h.

* At 11:50 am on January 19, 2012, we started the operation of the spent 
  fuel pool desalting facility since no problem was found as a result of 
  trial operation.

- As finding of accumulated water containing radioactive materials at the
  trench between the Process Main Building and the Miscellaneous Solid
  Waste Volume Reduction Treatment Building [High Temperature Incinerator
  Building] (December 18, 2011), we started the inspection of other
  trenches at the site on January 11. 
  On January 19, accumulated water was confirmed at circulating water pump 
  discharge valve pit in water pump room of Unit 2 and 3 during the 
  inspection. As a result of nuclide analysis, we found out that 
  relatively high concentration of radioactive material is included in the 
  water. However, the possibility of the outflow to the sea is extremely 
  low since there has been no significant change in the sampling result 
  conducted daily basis at Unit 2 and Unit 3 (Inside and outside of dust 
  inhibitor). 
  The nuclide analysis results (preliminary results) are as follows: 
  -Unit 2 water pump room, circulating water pump discharge valve pit 
    I-131:Not detected, Cs-134:7.1x103Bq/cm3,Cs-137:9.1x103Bq/cm3 
  -Unit 3 water pump room, circulating water pump discharge valve pit 
    I-131:Not detected, Cs-134:3.8x102Bq/cm3,Cs-137:4.8x102Bq/cm3

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

·Kashiwazaki Kariwa Nuclear Power Station: Units 5, 6: under normal
 operation
  (Units 1 to 4 and 7: outage due to regular inspections)

[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.

[Impacts on Power Supply and Demand Balance]  
This winter, there will be some minus factors such as the regular
inspection of Unit 5 at Kashiwazaki-Kariwa Nuclear Power Station. On the
other hand, there will be several plus factors such as the recovery of the
common thermal power stations which suffered the earthquake. As a result,
we expect to secure 54.6 GW (at the end of January), 53.7 GW (at the end
of February) supply power. 
Compared to the maximum demand in the last winter, which is 51.5 GW, we
will have 2.2 - 3.1 GW generation reserve margin.

We expect to maintain stable power supply this winter, however, as there
remains possibilities of unplanned shutdowns at our power stations and
growth in the demand according to the rapid change in the temperature, we
would like to ask your reasonable effort to save electricity.

We will continue to make our efforts to maintain stable operation and
maintenance of the power facilities in order to "prevent in principle" the
planned blackouts and secure power supply.

Appendix: Past Progress (As of 3:00 pm, January 19, 2012) (PDF 344KB) 
Appendix: Past Progress (From March 11, 2011 to July 31, 2011) (PDF 225KB) 

* Revised past progress