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Cause of Spain power outage still unclear after mass blackout, travel chaos

The Washington Post · last updated

MADRID — Life in Spain and Portugal began to return to normal Tuesday, a day after a massive power outage paralyzed the Iberian Peninsula, leaving governments, companies and experts scrambling to figure out what went wrong.

As questions build, it may take weeks before the blackout’s cause is clear.

“This cannot happen again,” Spanish Prime Minister Pedro Sánchez said Tuesday, of the largest blackout in Spain’s history. “We will take the necessary measures to prevent this from happening again and hold private operators accountable.”