From The New York Times:
Cuba’s power grid failed and the entire nation plunged into darkness Friday, less than a day after the government stressed the need to paralyze the economy to save electricity in the face of major gasoline shortages and large-scale, regular outages.
The electricity went out nationwide Friday morning after a failure at a thermoelectric power plant in Matanzas, east of Havana, Cuba’s Energy Ministry said on X. The announcement came less than a day after the prime minister, Manuel Marrero Cruz, held a late-night television address with state officials to discuss the ongoing electricity crisis, which experts said was the worst the nation — long accustomed to food and electricity shortages — had ever experienced.