Red Electrica, Spain's power operator, says that as of 06:00 local time (05:00 BST), 99.16% of power has been restored to mainland Spain. "All substations on the transmission grid are operational. We continue with the restoration work," the operator says.

Spanish power networks said restoring electricity to the country and Portugal could take up to 10 hours., and by mid-afternoon, voltage was progressively being restored