Corporate Information

Press Release (Mar 29,2011)
Implementation Plan of Rolling Blackouts on and after March 30, 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 30 (Wed.)
On March 30, Wednesday, no rolling blackout will be implemented in any 
time periods based on the today's power demand, the weather forecast on 
March 30 and the trend of the power supply. We appreciate your continuous 

○ Implementation plan of rolling blackouts on March 31 (Thu.)- April 5
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 29
   Estimated Demand 35,000 MW (18:00-19:00)
   Supply Capacity  38,000 MW

○Prediction of demand and supply on March 30
   Estimated Demand 35,000 MW (18:00-19:00)
   Supply Capacity  38,000 MW

*Prediction of demand
 According to the weather forecast, the temperature tomorrow on March 30 
 will be normal. We assume the estimated peak demand on March 30 will be 
 35,000MW, equal to the estimated demand today on March 29.
*Estimated demand and supply capacity may change depending on the 
 situation of the day. 

Appendix:Rolling Blackout Tentative Plan on Mar 29 (Tue)(PDF 17.1KB)

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