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) 

- From 10:34 am to 1:49 pm on July 8, we measured radiation dose in the air 
  at the second and third floor of Unit 2 Reactor Building using remote 
  controlled robot.

- At 8:20 am on July 8, we stopped the Alternative Cooling System of the 
  spent fuel pool of Unit 3 due to replace the electronic cable in the 
  site. At 2:24 pm on the same day, we restarted the Alternative Cooling 
  System of the spent fuel pool of Unit 3.

- From 1:35 pm to 1:44 pm on July 8, we checked the condition of Nitrogen 
  injection line of Unit 2 Reactor Building using high-altitude working 
  vehicle.

- At 8:22 am on July 8, we started freshwater injection to reactor well and 
  temporary storage pool of unit 4. At 1:52 pm on the same day, we stopped 
  water injection.

- At 10:30 am on July 8, we resumed transfer of the accumulated water at 
  the basement of T/B, Unit 6 to the temporary tanks. At 4:30 pm on the 
  same day, we stopped transfer.

- At 10:00 am on July 8, we resumed transfer of the low level radioactive 
  accumulated water that we once transferred from T/B of Unit 6 to 
  temporary tanks to Mega Float.

- At 10:00 am on July 8, we stopped operation of the water treatment 
  facility to flush the system. At 12:04 pm on the same day, we started the 
  accumulated water treatment facility (cesium absorption facility). At 
  12:15 pm, we resumed operation of the water treatment facility. We are 
  continuing water injection to Reactor.

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

- At 2:05 pm on July 7, we received a report as follows: "Workers from our 
  subcontractor were checking the power board for the High Pressure Core 
  Spray System located at B1, auxiliary building to R/B, Unit 1. They found 
  sparks from a circuit breaker in that power board." At 2:30 pm on the 
  same day, TEPCO employees checked the power board.
  At 5:37 pm on the same day, we stopped the Residual Heat Removal System 
  Pump (B) due to check the power board. From 5:44 pm to 8:46 pm on the 
  same day, we finished check of the power board. At 9:15 pm on the same 
  day, we restarted the Residual Heat Removal System Pump (B)

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 198KB)

* Revised past progress