Power was restored for tens of thousands of households in Chiba Prefecture on Thursday as recovery efforts continued after Typhoon Faxai ravaged Kanto, but full recovery for about 300,000 households will have to wait until Friday or later, a utility firm said.

Tokyo Electric Power Company Holdings Inc. had aimed to resolve the power outage by Wednesday, but said the recovery operation was delayed as power poles and power lines suffered worse damage than initially expected.

"Our estimation of the damage was too optimistic," Tepco said.