Overview

• A nationwide power outage in Spain on April 28 caused the automatic shutdown of reactors at Almaraz II, Ascó I & II, and Vandellós II nuclear plants.
• Backup diesel generators were activated as designed, maintaining safe conditions with no impact on workers, the public, or the environment.
• The Consejo de Seguridad Nuclear (CSN) declared a prealert emergency and activated its Emergency Response Organization in monitoring mode.
• Plant operators have initiated procedures to restore external power and prepare for reconnection to the national grid.
• The Trillo nuclear plant remains offline for scheduled refueling, unaffected by the blackout.