Corporate Information

Press Release (Apr 04,2011)
Implementation Plan of Rolling Blackouts on and after April 5, 2011
Due to the tight power supply-demand balance, TEPCO has been implementing 
rolling blackouts 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 
April 5, 2011 as follows:

○ Implementation plan of rolling blackout on April 5 (Tue)
On April 5, Tuesday, no rolling blackout will be implemented in any time 
periods based on the today's power demand, the weather forecast tomorrow 
on April 5 and the trend of the power supply.
Because of your cooperation in conserving electricity, we can avoid the 
rolling blackout for tomorrow on April 5. We appreciate your continuous 

○ Implementation plan of rolling blackouts from April 6 (Wed) to
April 11 (Mon)
  Please refer to the appendix for details.

  ● The actual blackout period for each Group is planned to be up to 
   approximately 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.

  ● 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.

 ○Prediction of demand and supply on April 4 and April 5
* Prediction of demand Tomorrow on April 5, since the temperature is forecasted to be higher than that of today, we assume the estimated peak demand on April 5 will be 35,000MW, which is lower than that of today on April 4. * Estimated demand and supply capacity may change depending on the situation of the day.
Appendix: Weekly Rolling Blackout Tentative Plan from April 5(Tue)to  
          April 11(Mon) (PDF 17.7KB)

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