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.  

○Implementation plan of rolling blackout on Public Holiday, March 21
Considering today's electricity supply-demand and tomorrow's weather,
regional group and time periods for the planned blackout are as follows.

  Group 4 6:20  - 10:00 Rolling blackout will not be implemented
  Group 5 9:20  - 13:00 Rolling blackout will not be implemented
  Group 1 12:20 - 16:00 Rolling blackout will not be implemented

 The necessity of the rolling blackouts will be judged depending on
 the supply-demand balance and will be informed before 12:00, March 21st.
  Group 2 15:20 - 19:00
  Group 3 18:20 - 22:00

 The actual blackout period for each group is planned to be maximum about
●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 Tuesday, March 22nd to 
Sunday, 27th,

Please refer to the exhibit 2 for detailed plan. 

●The actual blackout period for each group is planned to be maximum 
  about3 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.

[Improvement in implementing planned blackouts]
●In principle, we will implement the planned blackouts based on 
  the current manner. However, we do realize that there is room for
  improvement. Therefore, we will continue to consider and improve
  implementation manners from the customers' point of view.


○Prediction of demand and supply on March 20
  Estimated Demand    29,000 MW(18:00 - 19:00)
  Supply Capacity     34,500 MW

○Prediction of demand and supply on March 21
  Estimated Demand    34,000 MW(18:00 - 19:00)
  Supply Capacity     34,000 MW

attachment1:Appointed Areas by Group(PDF 10.1KB)
attachment2:Weekly Rolling Blackout Plan(PDF 19.7KB)