Tokyo Electric Power Co. will delay its planned electricity rate hike by one year for some corporate customers that are opposed to the increase, after coming under fire for its insufficient explanation on the matter.

The delay may result in Tepco bringing in only an extra ¥300 billion in the next business year, compared with its initial estimate of ¥400 billion, Managing Director Hiroaki Takatsu said Tuesday.

Tepco is planning to raise its rate in April by an average of 17 percent for large-lot customers.