An analysis of the European Network of Transmission System Operators for Electricity (ENTSO-E) Expert Panel’s final report on the April 28, 2025, Iberian Peninsula power grid incident. On a mild, sunny Monday in late April 2025, the power grids of Spain and Portugal collapsed in less than 90 seconds. At 12:33 p.m. Central European Summer Time (CEST), more than 50 million people lost electricity in...