Spanish Prime Minister Pedro Sanchez said that there is no final information about the cause of the power outage yet.
He said Spain aims to restore electricity supply across the country “as soon as possible”.
With neighbouring France and Morocco already partially resuming supplies, and “combined cycles and hydroelectric plants throughout the country have also been restored, which should allow us to resume supplies throughout Spain soon,” Sanchez said in a televised address.
On the afternoon of 28 April, all of mainland Spain, Portugal and parts of France were without power.