Story perspectives

16-Hour Blackout in Spain and Portugal Sparks Urgent Review

3/21/2026

Summary

Story summary

The Iberian Peninsula blackout left parts of Spain and Portugal without power for up to 16 hours.
The European Network of Transmission System Operators for Electricity (ENTSO-E) identified factors, including ineffective voltage control by conventional power plants and manual operation of network components.
It notes Spain's wider voltage range and France link management may have worsened the outage and calls for improved monitoring and coordination.

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Story summary

The Iberian Peninsula blackout left parts of Spain and Portugal without power for up to 16 hours.
The European Network of Transmission System Operators for Electricity (ENTSO-E) identified factors, including ineffective voltage control by conventional power plants and manual operation of network components.
It notes Spain's wider voltage range and France link management may have worsened the outage and calls for improved monitoring and coordination.