Power Returns After Blackout Paralyzes Spain, Portugal

Power Returns After Blackout Paralyzes Spain, Portugal
Above: People exit subway cars at the Baixo-Chiado station in Lisbon, Portugal on April 28, 2025. Image credit: Anderson Coelho/Contributor/NurPhoto via Getty Images

The Facts

  • Power was restored Tuesday, after a widespread outage Monday affected millions across Spain and Portugal, and briefly impacted parts of southern France. Officials described the incident as unprecedented.
  • Spanish Prime Minister Pedro Sánchez said the country lost approximately 15 gigawatts of electricity generation in five seconds — 60% of national demand. Portugal's grid operator reestablished normality before midnight, while Spain's Red Eléctrica reported normalization before noon Tuesday.
  • Spanish officials identified an electrical grid malfunction as the likely cause of the incident, ruling out the possibility of a cyberattack. The revelation has sparked a blame game, with the socialist government and conservative opposition fiercely contesting responsibility.

Sources Split


The Spin


Narrative A

The recent blackout on the Iberian Peninsula revealed significant weaknesses in our modern infrastructure, which depends heavily on interconnected power grids. This massive failure shows how quickly essential services can break down when electricity is lost, leaving millions without transportation, communication, and access to basic necessities. The incident underscores the urgent need for more resilient backup systems and improved grid stability to prevent cascading failures across interconnected European networks.

Narrative B

The blackout may be directly linked to Spain's rapid transition to renewable energy sources, which now account for 56% of electricity generation. This high reliance on intermittent power sources, like wind and solar, creates inherent instability in the grid, making it more vulnerable to frequency fluctuations and less resilient to sudden changes. Traditional power plants, with their spinning turbines, provide natural inertia that helps stabilize the grid — something that is increasingly lacking in systems heavily reliant on renewables.


Metaculus Prediction

© 2026 Improve the News Foundation. All rights reserved.Version 7.17.1

© 2026 Improve the News Foundation.

All rights reserved.

Version 7.17.1