An outage at the Diezmero substation on the outskirts of Havana had caused “a significant loss of generation in western Cuba and, with it, the failure of the National Electric System.”

Cuba‘s electric grid collapsed late Friday leading to a nationwide power outage and leaving millions in the dark. At around 8:15 p.m., an outage at the Diezmero substation in Havana caused “a significant loss of generation in western Cuba and,

Cuba remained largely without power on Saturday morning after the island´s grid collapsed the night before, knocking out electricity for 10 million people and raising fresh questions about the viability of its antiquated generating system.