Due to the 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 would like to inform the implementation plan of rolling blackouts on 
and after March 24, 2011 as follows. 

○ Implementation plan of rolling blackout on March 24 (Wed.) 
 Considering today's electricity supply-demand and tomorrow's weather, 
regional group and time periods for the planned blackout are as follows.

  Rolling blackout will not be implemented.
    Group 2  6:20-10:00
    Group 3  9:20-13:00
    Group 4 12:20-16:00
    Group 2 13:50-17:30
    Group 3 16:50-20:30

  The necessity of the rolling blackouts will be judged depending on 
  the supply-demand balance, and will be informed by 2 hours before the
  start of blackouts.
    Group 5 15:20-19:00
    Group 1 18:20-22:00

 ●The actual blackout period for each group is planned to be maximum 
   of 3 hours during the relevant scheduled time period.
 ●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 blackouts from Friday, March 25 to
Wednesday, March 30
Please refer to the "exhibit" for detailed plan. 
 ●The actual blackout period for each group is planned to be maximum of
   about 3 hours during the relevant scheduled time period.
 ●Starting and ending time of blackout periods will slightly differ day
   by day.
 ●Depending on the supply-demand balance hereafter, planned blackouts 
   may not be carried out. Moreover, 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 building and apartment, please be aware that equipment and 
   facility such as elevator, automatic door, automatic lock, and 
   multilevel parking lot will not function. In particular, please avoid
   using elevators during the blackout.  

‹Reference>
○Prediction of demand and supply on March 23
       Estimated Demand   38,000 MW (18:00-19:00)
       Supply Capacity    37,500 MW

○Prediction of demand and supply on March 24
       Estimated Demand   37,000 MW (18:00-19:00)
       Supply Capacity    38,500 MW
*Prediction of demand
 According to the weather forecast, the weather will become worse from 
 tomorrow afternoon and temperature will be lower than that of average 
 year. However, estimated temperature at peak demand time tomorrow will 
 be higher than that of today, so we assume estimated peak demand on 
 March 24 will be 37,000MW,which is lower than that of today.
*Estimated demand and supply capacity may change depending on the 
 situation of the day.

attachment:Weekly Rolling Blackout Plan(PDF 19.8KB)