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Cuba Faces Islandwide Blackout Amid Fuel Shortages and Aging Power Grid

Cuba Faces Islandwide Blackout Amid Fuel Shortages and Aging Power Grid
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An islandwide blackout plunged Cuba’s 11 million residents into darkness on Monday, after the country’s fragile national grid suffered a “complete disconnection” amid an acute shortage of fuel and years of underinvestment in power plants and transmission lines apnews +1. By nightfall, authorities said they had restored electricity to only about 42,000 customers in Havana—roughly 5% of the capital—while hospitals and key communications systems were given priority apnews.

The outage was at least the sixth total collapse of Cuba’s National Electric System in 18 months, capping more than a week of rolling blackouts and mounting street protests over power, food and water shortages across the island pbs +1. Officials reported that nine of 16 thermoelectric units were offline when the system went down and that available generation stood at about 1,220 megawatts against forecast peak demand of 3,150 MW, a deficit of roughly 1,930 MW pbs +1.

A Power Grid on the Brink

Cuban energy officials described a system so weakened that reconnection itself carried risks. “It must be done gradually to avoid setbacks,” said Lázaro Guerra, an electricity director at the Energy and Mines Ministry, warning that very weak systems are “more susceptible to failure” apnews. Technical analyses over the past year have characterized Cuba’s grid as being “near total failure,” with ageing thermoelectric plants corroded by heavy, high‑sulfur fuel oil, chronic shortages of spare parts and transmission infrastructure that has far exceeded its intended lifespan latimes.

The current collapse followed a series of large‑scale outages, including a March 4 failure that cut power to roughly two‑thirds of the country, including Havana djournal. On many days this month the state utility, Unión Eléctrica (UNE), has forecast deficits above 2,000 MW, forcing rolling cuts that in some provinces have lasted up to 20 hours a day theglobeandmail +1. Analysts say such deep structural problems make the grid prone to cascading failures whenever a major plant trips offline.

Fuel Shock, Protests and Political Fallout

The blackout intensified a political crisis already fueled by days of demonstrations over shortages. Residents in several cities banged pots in nighttime “cacerolazo” protests, staged sit‑ins at the University of Havana and, in the central city of Morón, partly destroyed a local Communist Party headquarters; at least five people were arrested there, and human‑rights groups reported further detentions elsewhere thehill +1. President Miguel Díaz‑Canel acknowledged that frustration over prolonged cuts was “understandable” but condemned vandalism and pledged to maintain public order pbs +1.

Havana has blamed the deepening crisis on what it calls a U.S. “energy blockade” tied to sanctions and measures that have sharply reduced oil and fuel shipments from traditional allies Venezuela and Mexico. Reuters reported that Cuba’s crude and fuel imports fell by more than one‑third in the first 10 months of 2025 compared with a year earlier, leaving the island struggling to feed its oil‑dependent power plants ottumwacourier. Díaz‑Canel recently said no petroleum shipments had arrived in three months and confirmed rare talks with Washington as his government tries to safeguard fuel for hospitals, food production and other critical sectors pbs +1.

The Bigger Picture

The latest nationwide blackout underscored how Cuba’s overlapping crises—fuel shortages, a decaying grid and a battered economy—have converged into a sustained emergency that engineering fixes alone cannot quickly resolve. With key plants failing, imports shrinking and public anger spilling into the streets, the government faces pressure to secure new energy supplies, accelerate investment in more resilient generation such as renewables and negotiate external relief, even as sanctions and political mistrust constrain its options apnews +2. Until those structural gaps are addressed, Cubans are likely to keep living with a power system that can meet only a fraction of demand and remains one shock away from the next nationwide collapse.