On April 28, 2025, a massive blackout struck most of Spain and parts of Portugal, disrupting power, phone lines, public transport, traffic lights, and aviation. The outage began around noon, affecting major cities like Madrid, Barcelona, and Lisbon. Spain's national grid reported a loss of over 10 GW of demand, dropping from ~26 GW to ~12 GW in seconds. Airports, including Madrid Barajas and Valencia, faced delays and relied on backup generators. Trains were largely halted, and streets saw some chaos, though order mostly held.