A significant blackout on Wednesday left millions in Havana and western Cuba without electricity, marking the latest disruption for an island grappling with diminishing oil supplies and a deteriorating power grid.
Radio Rebelde, a government radio outlet, reported that an energy official indicated it might take as long as 72 hours to resume operations at one of Cuba’s major thermoelectric power facilities, which had ceased functioning earlier, triggering the outage.
The national electric utility shared on social media platform X that the power failure impacted individuals from Pinar del Río in the west to Camaguey in the center of the island.
Vicente de la O Levy, the Minister of Energy and Mines, posted on X late Wednesday, informing that the government was supplying power to essential services in the affected areas, as two power plants were being brought back online. This includes facilities such as hospitals and clinics.
“We are striving to restore the National Electric System during this challenging energy crisis,” he noted earlier on X.
The U.S. Embassy in Cuba issued a security warning, advising residents to “prepare for significant disruptions” and to conserve fuel, water, food, and mobile phone battery life.
“Cuba’s national electricity grid has become increasingly unreliable, with both planned and unplanned outages becoming extended and frequent throughout the nation, including in Havana,” it stated on X.

A power generator is seen at work outside a shop in Havana amid Wednesday’s blackout. (Yamil Lage/AFP/Getty Images)
By Wednesday afternoon, government sources reported that teams had managed to restore power to about 2.5 percent of Havana, representing roughly 21,100 customers, emphasizing that recovery efforts were gradual and dependent on the conditions of the system. There were no updated figures provided by late Wednesday night.
Prime Minister Manuel Marrero Cruz expressed confidence in the expertise and dedication of the electrical workers to resolve the situation as quickly as possible on X.
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As darkness settled, residents of Havana gathered on their doorsteps, cooking caldosas, a traditional soup shared among neighbors who contribute various ingredients like vegetables, chicken, and meat. A group of musicians entertained along the city’s famous seawall throughout the night.
Others gathered around a rechargeable lightbulb to play dominoes.
“With the power outages, this is the only way for us young people to entertain ourselves,” remarked Jeferson Silvera.
Daily and extended power outages have become so prevalent that 66-year-old Genoveva Torres was waiting for electricity to return as usual in the evening to prepare dinner. She was upset when informed about the widespread blackout.
“My God, how long will this last?” she exclaimed. “Then we won’t be able to eat. We’ll have to resort to bread again.”
State media indicated that the outage was a result of the shutdown of the Antonio Guiteras thermoelectric power plant, located east of Havana, due to a leak in its boiler.
Repair cannot commence until fault is identified
Radio Rebelde reported that the technical director of the plant, Román Pérez Castañeda, stated that teams must first identify the fault, decide on a repair strategy, execute it, and then restart and synchronize the unit.
Pérez Castañeda explained that a pipe burst in the boiler, resulting in a water leak and subsequent fire that was extinguished by firefighters without significant damage, according to Radio Rebelde.


