Corporate Information

Press Release (Mar 30,2011)
Implementation Plan of Rolling Blackouts on and after March 31, 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 
March 30, 2011 as follows:

○ Implementation plan of rolling blackout on March 31 (Thu.)
On March 31, Thursday, no rolling blackout will be implemented in any time 
periods based on the today's power demand, the weather forecast on March 
31 and the trend of the power supply. Because of your cooperation in 
conserving electricity, we can avoid the rolling blackout for tomorrow. 
We appreciate your continuous cooperation

○ Implementation plan of rolling blackouts on April 1 (Fri)-
  April 6 (Wed)
Please refer to the appendix 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

●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 March 30
   Estimated Demand   34,000 MW (18:00-19:00)
   Supply Capacity    38,000 MW

○Prediction of demand and supply on March 31
   Estimated Demand   34,000 MW (18:00-19:00)
   Supply Capacity    38,000 MW

*Prediction of demand
 According to the weather forecast, the temperature tomorrow on March 31 
 will be normal. We assume the estimated peak demand on March 31 will be 
 34,000MW, equal to the estimated demand today on March 30.
*Estimated demand and supply capacity may change depending on the 
 situation of the day. 

Appendix:Weekly Rolling Blackout Tentative Plan from Mar 31(Thu)
         to April 6(Wed)(PDF 17.3KB)

back to page top

to TOP