Overview

• A major power outage struck Spain, Portugal, and parts of southern France on April 28, affecting millions and halting trains, metros, and air traffic.
• Three Spanish nuclear plants shut down automatically and are operating on backup diesel generators as part of safety protocols.
• Grid operators in Spain and Portugal, with assistance from French operator RTE, have restored power to several regions, with full restoration expected within hours.
• Authorities are investigating the cause of the blackout, with initial findings ruling out a cyberattack but citing potential technical issues within Spain's grid.
• The Canary and Balearic Islands were unaffected due to their independent energy systems, and France experienced only brief, localized outages.