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Cuba's national electric grid collapses, leaving millions without power

Published by Global Banking & Finance Review

Posted on March 16, 2026

3 min read

· Last updated: April 1, 2026

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Cuba's national electric grid collapses, leaving millions without power
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By Dave Sherwood HAVANA, March 16 (Reuters) - Cuba's national electric grid collapsed on Monday, the country's grid operator said, leaving around 10 million people without power amid a U.S.-imposed

Cuba’s National Electric Grid Collapse Impacts Millions During Oil Blockade

Widespread Blackout and Its Causes

By Dave Sherwood

HAVANA, March 16 (Reuters) - Cuba's national electric grid collapsed on Monday, the country's grid operator said, leaving around 10 million people without power amid a U.S.-imposed oil blockade that has crippled the island's already obsolete generation system.

Investigation and Response

Grid operator UNE said on social media it is investigating the causes of the blackout, the latest in a series of widespread outages that last for hours or days and that this weekend sparked a rare violent protest in the communist-run country.

Officials ruled out a major power plant failure, but had still not pinpointed the root cause of the grid collapse, suggesting a problem with transmission.

Officials said they had begun restoring power to small clusters of circuits, or microsystems, across the country, an early but necessary first step in bringing the full grid back online.

Impact of U.S. Sanctions and Oil Blockade

The United States has ratcheted up pressure this year on long-time foe Cuba since capturing Venezuelan President Nicolas Maduro - Cuba's most important foreign benefactor - in January.

U.S. ​President Donald Trump cut off Venezuelan oil shipments to Cuba and threatened to slap tariffs on any country that sells oil to Cuba, strangling the Caribbean island's already antiquated grid.

Diplomatic Efforts

Cuba said on Friday that it has entered into talks with the United States with the hope of defusing the crisis. Trump has said in recent weeks that Cuba is on the verge of collapse and is eager to make a deal with the United States.

Everyday Life Amid Power Outages

Cubans have grown accustomed to power outages, whether tied to the oil supply shortfalls or systemic failures in the grid, which can also be the result of depressed power generation.

Public Sentiment

"No, the news didn't surprise me," said Havana resident Dayana Machin, 26, adding that all Cubans were scrambling now to find alternatives to grid-provided electricity.

"We're getting used to living like this."

Oil Imports and Fuel Shortages

Current Oil Shipments

RUNNING ON FUMES

Cuba has received only two small vessels carrying oil imports this year, according to LSEG ship tracking data seen by Reuters on Monday.

The first tanker discharged fuel in January at the Havana port coming from Mexico, which was a regular supplier to the island until then. The second vessel, from Jamaica, discharged liquefied petroleum gas - known as cooking gas - in February.

Decline in Venezuelan Support

Venezuela, once Cuba's main oil supplier, has sent no fuel to the island this year.

Venezuela's state company PDVSA last month loaded gasoline in a tanker that it had previously used to transport fuel to Cuba, but the vessel has not left Venezuelan waters, PDVSA documents and tanker monitoring data showed.

Import Activity at Major Cuban Ports

No large imports have entered this year through Cuba's main hubs of Matanzas or Moa, which typically handle crude for refining and fuel oil for power generation, according to satellite images analyzed by TankerTrackers.com. The ports of Havana and Cienfuegos also have not had import activity in more than a month, it added.

(Reporting by Dave Sherwood, additional reporting by Anett Rios and Alien Fernandez in Havana and Marianna Parraga in Houston; Editing by Brendan O'Boyle, Will Dunham and Nia Williams)

Key Takeaways

  • The blackout reflects deep weaknesses in Cuba’s centralized, deteriorating power grid—exacerbated by long‑standing underinvestment and aging thermal plants  (thenewhumanitarian.org)
  • An intensified U.S. fuel blockade—enacted via executive orders and tariff threats in early 2026—halted Venezuela and Mexico oil shipments, severely reducing fuel for electricity generation  (en.wikipedia.org)
  • Cuba is accelerating renewable efforts—deploying solar parks and planning microgrids—to mitigate future collapses and lessen reliance on imported fossil fuels  (roic.ai)

References

Frequently Asked Questions

What caused the recent collapse of Cuba's national electric grid?
The collapse is believed to be related to transmission issues in the grid, worsened by a U.S.-imposed oil blockade and Cuba's outdated generation system.
How many people were affected by Cuba's latest power outage?
Around 10 million people across Cuba were left without power during the national grid collapse.
Has Cuba been able to restore power after the blackout?
Officials have started restoring power to small regions, or microsystems, as an initial step to bring the grid back online.
What role did U.S. policies play in Cuba's electricity crisis?
A U.S.-imposed oil blockade has limited Cuba's fuel imports, heavily affecting power generation and contributing to recurring outages.
Where has Cuba been importing oil from since Venezuelan deliveries stopped?
Cuba received oil shipments earlier in the year from Mexico and Jamaica due to a halt in Venezuelan supplies.

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