Ren explained that due to sudden temperature changes in the central part of Spain there was a fluctuations in voltage on the transmission lines of the highest voltage.
The operator added that voltage changes caused problems with synchronization between the Spanish and Portuguese electro-energy network, which in turn led to problems at interconnectors, among others, European countries.
The company also assessed that the restoration of the normal functioning of the system can take up to a week.
Great Blackout in Spain and Portugal
On Monday around 12.30 The continental Spain and part of Portugal were affected by a large power failure. In Madrid and Lisbon, there were no Traffic lights and metro, railways also stood in both countries. Difficulties were found at airports. In Portugal, the lack of electricity has disturbed the functioning of some hospitals.
Portugal Prime Minister Luis Montenegro stated that he was expecting to restore electricity in the coming hours. In the Spain part, the network has already been partially repaired.
In addition, the Reuters agency reported that the Spanish Spółka Paliwowa Moeve suspended work in its refineries due to the failure of the energy network.
In Spain, the power network operator began after 14 Restore electricity in the south and north of the country. France also included breaks in electricity supply.
