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Corporate Information

 
Press Release (Mar 27,2011)
Implementation Plan of Rolling Blackouts on and after March 28, 2011
Due to the tight power supply-demand balance, TEPCO has been implementing 
rolling blackout since Monday, March 14. We sincerely regret causing 
anxiety and inconvenience to our customers and the society. We appreciate 
your cooperation in conserving electricity consumption.
For customers who will be subject to rolling blackouts, please be prepared 
for the announced blackout periods. Also, for the customers who are not 
subject to blackouts, we would appreciate your continuous cooperation in 
reducing electricity usage by turning off unnecessary lightings and 
electrical appliances. 
We will inform the implementation plan of rolling blackouts on and after 
March 28, 2011 as follows:

○Implementation plan of rolling blackout on March 28 (Mon.)
On March 28, Monday, rolling-blackout will be implemented based on the 
today's power demand, the weather forecast on March 27 and the trend of 
the power supply as follows. Please refer to the appendix 1 and 2 for 
details.

Group 2 9:20 am - 1:00 pm
                         ···Rolling-blackout will be implemented
                            in Group 2-A, 2-B and 2-C. (Not  
                            implemented in Group 2-D and 2-E)

Group 1 6:20 am - 10:00 am 
Group 3 12:20 pm - 4:00 pm
Group 1 1:50 pm -  5:30 pm
Group 2 4:50 pm -  8:30 pm
                         ···No rolling blackout will be implemented.

Group 4  3:20 pm -  7:00 pm
Group 5  6:20 pm - 10:00 pm
                         ···We'll inform whether the blackout is
                            implemented in Group 4 and 5 at least two
                            hours before the start of the blackout
                            based on the power demand.

 ●The actual blackout period for each Group is planned to be maximum 
  about 3 hours during the relevant scheduled time period.
 ●Each blackout period for each Group differs every day and starting 
  and ending time of blackout periods may slightly differ.
 ●Depending on the supply-demand balance of the day, planned blackouts 
  may not be carried out. In case the electricity supply-demand balance 
  becomes tighter than expected, we will reconsider the rolling blackout 
  plan and inform you accordingly before we implement the revised plan.
 ●A blackout may occur in the adjacent areas where the planned blackouts 
  are carried out

○Implementation plan of rolling blackout on March 29 (Mon.)- April 3(Sun.)
Please refer to the appendix 1 for details.

 ●The actual blackout period for each Group is planned to be maximum 
  about 3 hours during the relevant scheduled time period.
 ●Each blackout period for each Group differs every day and starting 
  and ending time of blackout periods may slightly differ.
 ●Depending on the supply-demand balance of the day, planned blackouts 
  may not be carried out. In case the electricity supply-demand balance 
  becomes tighter than expected, we will reconsider the rolling blackout 
  plan and inform you accordingly before we implement the revised plan.
 ●A blackout may occur in the adjacent areas where the planned blackouts 
  are carried out

[Others]
 ●In order to prevent fires, please make sure to switch off electric 
  appliances such as hair driers when you leaving home.
 ●Please carefully pay attention to the traffic at the crossings in 
  case the traffic lights are suddenly turned off.
 ●As for the buildings and apartments, please be aware that equipments 
  and facilities such as elevators, automatic doors, automatic locks, and 
  multilevel parking lots will not function. In particular, please avoid 
  using elevators during the scheduled blackouts.

<Reference>
○Prediction of demand and supply on March 27
 Estimated Demand 34,000 MW (18:00-19:00)
 Supply Capacity  37,000 MW

○Prediction of demand and supply on March 28
 Estimated Demand 38,000 MW (18:00-19:00)
 Supply Capacity  38,500 MW

*Prediction of demand
 According to the weather forecast, the temperature tomorrow on March 28 
 will be lower than that of today. We assume the estimated peak demand on 
 March 28 will be 38,000MW.
*Estimated demand and supply capacity may change depending on the 
 situation of the day.
 
Appendix1:Weekly Rolling Blackout Tentative Plan from
          Mar 28(Mon)to April 3(Sun)(PDF 20.2KB)
Appendix2:Rolling Blackout Tentative Plan on Mar 28 (Mon)(PDF 13.5KB)
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