Overview

• Engineers report that severe grid disturbances began a few milliseconds after 12:32:57 GMT in the Granada region.
• Generation on the Iberian Peninsula fell in rapid, stepwise fashion, with several solar and wind plants disconnecting within milliseconds.
• The investigation has not established a single root cause, and Entso‑E plans a final report with detailed recommendations in the first quarter of 2026.
• Experts describe the April 28 outage as the most significant event in Europe’s power system in more than two decades, with brief spillover into southwest France and Morocco.
• Operators and officials urge updates to grid connection codes and clearer responsibilities, with APG citing outdated rules in Spain and the EU energy commissioner calling for decisive action.