The country’s top officials were trying to determine the cause of an outage that left tens of millions of people across the Iberian Peninsula without power.

On 28 April 2025, an unprecedented collapse of the Iberian Peninsula's electricity grid brought Spain and Portugal to a standstill. The likelihood of this ever happening was extremely low and—speculation about its causes aside—the episode has caused serious social disruption,

General power outages, such as the one that struck Spain and Portugal earlier this week, can stem from various causes, but the incident underscored