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Spain and Portugal Blame REE for Major Blackout

10/15/2025

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Summary

Story summary

On April 28, 2025, Spain and Portugal faced a blackout caused by voltage disturbance, ENTSO-E's Expert Panel says.
The incident was rated "scale 3" and involved sudden renewable shutdowns, disrupting grid synchronization.
The Spanish Government faulted Red Eléctrica de España (REE) and producers for poor planning.
Iberdrola plans legal action against REE's president for implicating the company in the blackout.
Investigations continue to identify root causes and improve grid management.

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Story summary

On April 28, 2025, Spain and Portugal faced a blackout caused by voltage disturbance, ENTSO-E's Expert Panel says.
The incident was rated "scale 3" and involved sudden renewable shutdowns, disrupting grid synchronization.
The Spanish Government faulted Red Eléctrica de España (REE) and producers for poor planning.
Iberdrola plans legal action against REE's president for implicating the company in the blackout.
Investigations continue to identify root causes and improve grid management.