Scottish Power Energy Networks says the company has been working 'across the day' to respond to a high number of weather-related incidents across north and mid Wales due to wind gusts of up to 94mph caused by Storm Doris.
Around 60,000 customers were impacted by the high winds since midnight last night. The energy company says it has reconnected 51,000 homes today but there are currently 9,000 without power, with the majority in north Wales.
Engineers will continue to work to fix faults, but is anticipated that some homes in North Wales will remain off power overnight.
The storm force winds caused as many faults in three hours as SP Energy Networks would normally see in three months.
The biggest issue affecting the electricity network has been uprooted trees and other debris blown on to overhead power lines, which has caused damage and brought down the power lines in some areas.
Working conditions remained difficult across most of the day with high wind speeds and strong gusts.
Arriva Trains Wales says twelve trains were damaged by hitting fallen trees and services will be affected this morning.
Yellow and amber warnings of strong winds remain in place across Wales, as Storm Doris batters the UK.