Western Power Distribution estimates that hundreds of properties are currently without power.
The areas affected are Cardiff, Carmarthenshire, Monmouthshire, and Powys.
Keep up to date with WPD's power cut map.
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.