That conclusion has been supported by the operator of Spain’s national grid, Red Eléctrica, which has located where outages began on Monday. Two separate incidents of power outages led to instability in the grid leading to a “breakdown in interconnections with France,” leaving the Iberian grid isolated.

Red Eléctrica" data-has-syndication-rights="1" src=" /> Power went down Monday afternoon in vast areas of Spain, crossing over into Portugal and France, causing widespread outages in homes and businesses and bringing transportation infrastructure to a halt.