Cuba plunged into a complete nationwide blackout on Monday, March 16, after its entire national electrical grid suddenly collapsed — leaving roughly 10 million people without power, water, or refrigeration in what has become the most visible and devastating consequence yet of Washington’s energy blockade on the island.
The Collapse
At 1:54 p.m. local time, the U.S. Embassy in Cuba confirmed a complete power outage across the country, including the Havana metropolitan area, following a total disconnection of the national electrical grid. Cuba’s Ministry of Energy and Mines noted a “complete disconnection” of the electrical system on social media, adding that it was investigating the cause — and crucially, that there were no detected failures in any of the generating units that were operating when the grid went down. The grid simply gave out.
It was the third major blackout in Cuba over the past four months. Power crews worked through the night to restart thermoelectric plants, a process that had to be done gradually. Electricity Director Lázaro Guerra warned state media: “Systems, when very weak, are more susceptible to failure.” By Tuesday afternoon, power had returned to roughly 55 percent of customers in Havana, as well as all health centers across the capital, with service also restored in western and central-eastern regions after some power plants were reconnected.
The Oil Blockade at the Heart of the Crisis
Cuba’s national grid collapsed amid a U.S.-imposed oil blockade that has crippled the island’s already obsolete generation system. The United States ratcheted up pressure on long-time foe Cuba following the capture of Venezuelan President Nicolás Maduro in January, cutting off Venezuelan oil shipments to Cuba and threatening tariffs on any country that sells oil to the island — effectively strangling the Caribbean nation’s antiquated grid.
The numbers are stark. Cuba has received only two small vessels carrying oil imports this year — the first from Mexico in January, and the second carrying liquefied petroleum gas from Jamaica in February. Venezuela, once Cuba’s main oil supplier, has sent no fuel to the island this year. No large imports have entered through Cuba’s main hubs of Matanzas or Moa, which typically handle crude for refining and fuel oil for power generation.
Cuban President Miguel Díaz-Canel confirmed last week that no oil had been delivered to the island in three months, saying: “The impact is tremendous. It is most brutally manifested in these energy issues. This causes anguish among the population.”
Fuel prices have skyrocketed so severely that petrol on the unofficial market can reach as much as $9 per litre — meaning it costs over $300 to fill a car’s tank, more than most Cubans earn in an entire year.
A Grid Long Past Its Limits
The fuel blockade has accelerated the collapse of infrastructure that was already on its last legs. Cuba relies on oil-fired thermal plants built decades ago, many of which are in deteriorated condition. The country’s generation mix remains heavily dependent on oil with little diversification, and when aging facilities break down, the grid lacks redundancy — while obtaining spare parts is extremely difficult.
William LeoGrande, a professor at American University who has studied Cuba for decades, put it plainly: the country’s energy grid has not been maintained properly and its infrastructure is way past its normal useful life, adding that the technicians keeping it running are remarkable given the state it is in.
Cuba has relied heavily on foreign assistance and oil shipments from allies like Mexico, Russia, and Venezuela. While the country produces about 40 percent of its own petroleum, it has not been sufficient to meet demand as its electric grid continues to crumble. And without hard currency, the government cannot import spare parts or upgrade plants — creating what LeoGrande described as a perfect storm of collapse.
Social Unrest Deepens
The repeated blackouts are eroding what remains of public patience. Just two days before the latest grid collapse, a large crowd of protesters attacked a local Communist Party headquarters, ransacking the building and attempting to set it on fire — a rare and striking act of public defiance in the tightly controlled communist state.
Videos circulating on social media have shown residents in Havana and other cities banging pots and pans in the streets in the traditional protest form known as a “cacerolazo,” reflecting growing frustration as the country struggles with electricity outages, food shortages, and deteriorating living conditions. The government responded to Monday’s blackout by cutting internet access in some areas and deploying police.
The government has announced emergency measures including reduced school hours, postponement of major sporting and cultural events, and cuts to transport services.
Trump’s Remarks Add to the Tension
As the island went dark, U.S. President Donald Trump used the moment to make his most direct comments yet about Cuba’s future. Speaking from the Oval Office, Trump mused aloud about having the “honor of taking Cuba,” saying: “Whether I free it, take it — I think I can do anything I want with it.” When pressed on whether such a move would resemble the January capture of Maduro in Venezuela or the ongoing war with Iran, Trump replied: “I can’t tell you that.”
Havana did not immediately respond to Trump’s remarks. Cuban Deputy Foreign Minister Carlos Fernández de Cossío said: “Officials in the U.S. government must be feeling very happy by the harm caused to every Cuban family.”
For now, Cuba is left navigating a crisis with no easy exit — aging infrastructure, an empty fuel supply, mounting public anger, and a U.S. administration that appears to view the island’s suffering as leverage.
