On July 14, Cuba's national power grid collapsed for the third time in nine days, leaving roughly 10 million people without electricity. The first failure struck on July 6, and a second followed just days later on July 11. Each time, utility crews managed to restore partial service — only for the fragile system to fail again under the weight of chronic fuel shortages and aging infrastructure.
The root cause traces back to Cuba's near-total dependence on imported fuel to run its power plants. For years, Venezuela supplied roughly half of Cuba's oil under preferential terms. But after the United States deposed Venezuelan President Nicolás Maduro in January 2023 and imposed a tightened oil blockade on Cuba, that pipeline dried up. Mexico also halted shipments under US pressure. Without those supplies, many of Cuba's power plants — some built in the 1970s and 1980s — simply cannot run at full capacity.
The island's Antonio Guiteras power plant, the country's largest, has suffered repeated breakdowns. Smaller thermal plants across the provinces are in similarly poor condition, operating far below their rated output. The grid itself lacks modern protection systems, meaning a single plant trip can cascade into a total system shutdown — exactly the pattern seen in all three July 2026 blackouts.
Beyond the immediate crisis, the blackouts underscore a deeper vulnerability: Cuba's energy infrastructure has been starved of investment and maintenance for decades. While some renewable energy projects — solar farms and bioelectric plants — are under development, they produce only a fraction of the island's needs. Until the fuel supply stabilizes or the generation fleet is fundamentally modernized, the risk of further collapses remains high.