Cuba has entered another period of widespread national crisis after its entire national power grid collapsed completely early Tuesday local time, leaving nearly 10 million Cuban residents without access to electricity. This outage marks the third full-scale nationwide blackout to hit the Caribbean island in just 10 days, and the fifth such major event recorded across the country in 2026.
According to Unión Eléctrica (UNE), the Cuban state-owned national power authority, the full system collapse began around 11 a.m. local time. The Cuban Ministry of Energy and Mines later confirmed via social media platforms that all segments of the country’s interconnected power system had been completely taken offline.
The repeated energy failures unfold against the backdrop of Cuba’s worst economic downturn in decades, a crisis that has been sharply exacerbated by a U.S.-imposed oil boycott that has cut off the island’s most critical energy supply lines. The U.S. trade embargo on oil shipments to Cuba deepened already severe fuel shortages across the island, pushing Cuba’s aging, outdated power grid – much of which was originally installed in the 1960s and 1980s – beyond its operational breaking point.
The latest U.S. oil restrictions were implemented in January this year, shortly after the ousting of Venezuelan former president Nicolás Maduro. For decades, Venezuela served as Cuba’s primary supplier of heavily subsidized crude oil, a partnership that kept the island’s energy system running for generations. Following the U.S. imposition of the new boycott, Mexico also halted all fuel exports to Cuba under U.S. diplomatic pressure.
Data from the International Energy Agency shows that as recently as 2023, Cuba only produced roughly 40 percent of the total oil its population and economy consumed annually, leaving the country overwhelmingly dependent on foreign energy imports to meet domestic demand.
U.S. government officials have stated that the sanctions are explicitly designed to increase pressure on Cuba’s communist-led government to schedule free democratic elections and release hundreds of political detainees held in Cuban custody.
The recurring, widespread blackouts have fueled growing public discontent across the island over the past two weeks. Just last week, spontaneous protests broke out in multiple neighborhoods across Havana, where residents banged pots and pans in coordinated demonstrations to demand the immediate restoration of power. During the previous round of national blackouts earlier this month, full power restoration across all regions of Cuba took more than 24 hours to complete.