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Cuba's electrical grid collapses again, plunging island into darkness - Headlines news and analysis from Global Banking & Finance Review
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Cuba's electrical grid collapses again, plunging island into darkness

Published by Global Banking & Finance Review

Posted on September 19, 2026

2 min read

· Last updated: September 19, 2026

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Cuba Faces Widespread Blackout After Electrical Grid Collapse Amid Oil Blockade

Nationwide Blackout and Its Causes

By Dave Sherwood

Immediate Impact of the Grid Collapse

HAVANA, Sept 18 (Reuters) - Cuba's electrical grid suffered a total collapse on Friday, plunging the nation into darkness and leaving millions without power amid a US pressure campaign that has largely blocked oil from reaching the Caribbean's largest island.

Triggering Event and Initial Response

Friday's collapse was triggered by a failure in high-voltage transmission lines in central Cuba that occurred around 2 p.m. local time, authorities said.

"Protocols are now in place to begin the gradual restoration of the system," said Felix Estrada, an official with Cuba's National Electrical Union (UNE).

Restoration Efforts and Ongoing Challenges

Power had returned to a handful of scattered neighborhoods in Havana by late evening, primarily around hospitals, but much of the city remained completely dark under cloudy skies and rain.

Historical Context and Resident Experiences

Frequent Blackouts and Public Resilience

The nationwide blackout, the latest of at least six partial or total grid collapses since January, hardly registered in a country accustomed to long hours, or even days, without power.

Many exhausted residents of the capital Havana were already without power when the blackout hit.

Personal Accounts

"Yesterday I'd gone without power for 24 hours. They turned the lights on for an hour, and then the grid collapsed," said Frank Lorenzo, a 23-year-old Havana resident looking forward to a long night of sweating and slapping mosquitoes.

Underlying Causes: Infrastructure and Oil Blockade

Cuba's aging power generation system has been under severe strain from fuel shortages and decrepit infrastructure for years, but a US-imposed oil blockade that began in January has vastly worsened blackouts and led to more frequent grid collapses.

The grid collapsed three times in July and rolling blackouts have since spanned 30 hours or more across most of the country.

International Response and Human Rights Concerns

United Nations human rights experts have condemned the US oil blockade, calling it a violation of international law and warning that Cuba risks becoming a "silent Gaza" as shortages and blackouts grow ever more critical.

(Reporting by Dave Sherwood, Ayose Naranjo and Alien Fernandez; Editing by Kylie Madry and Sam Holmes)

Key Takeaways

  • This was at least the sixth islandwide blackout in 2026, highlighting systemic fragility in Cuba’s aged power infrastructure under sustained fuel scarcity (apnews.com).
  • The blackout was initiated by a failure in central Cuba’s high‑voltage transmission lines around 2 p.m., but while restoration protocols are underway—including emergency “microsystems”—large swaths of Havana remain without power (reddit.com).
  • The crisis is rooted in compounded factors: outdated infrastructure, dwindling fuel supplies due to a U.S.-imposed oil blockade since January, and worsening humanitarian impact; UN experts have warned of a potential “silent Gaza” scenario (apnews.com).

References

Frequently Asked Questions

What caused Cuba's nationwide blackout on September 18?
A failure in high-voltage transmission lines in central Cuba caused the total collapse of the country’s electrical grid.
How have US policies impacted Cuba's electricity supply?
A US-imposed oil blockade since January has worsened blackouts in Cuba by preventing oil shipments, further straining the aging grid.
How often have electrical grid collapses occurred in Cuba in 2023?
There have been at least six partial or total grid collapses since January, with three occurring in July alone.
Which areas in Havana first saw power restoration after the blackout?
Power was first restored to scattered neighborhoods in Havana, mainly around hospitals.

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