The energy crisis in Cuba has reached a new critical point this Saturday, March 7th, 2026. A massive failure in the National Electric System (SEN), triggered by the unexpected disconnection of the Antonio Guiteras Thermal Power Plant—the country’s most vital facility—has left more than two-thirds of the national territory without electricity.

System Collapse

According to reports from the Unión Eléctrica (UNE), the disconnection occurred “abruptly,” causing a domino effect that affected areas from Pinar del Río to the eastern provinces. In Havana, vast sectors remain in relative darkness, illuminated only by mobile phone flashlights and some private generators in tourist areas.

The generation deficit had already exceeded 2,000 MW before this latest incident, marking a historical record of instability. The aging infrastructure, suffering from chronic lack of maintenance, has been unable to handle the demand coupled with the fuel shortage also plaguing the island.

The persistence of blackouts, which in some regions exceed 18 hours per day, has exacerbated social tension. Citizens in various locations have reported extreme difficulties in preserving food and obtaining clean water, as these services depend directly on the electrical grid.

“It’s no longer just the lack of light; it’s the uncertainty of not knowing when it will return,” one resident of Central Havana told local media. The situation is further complicated by Washington’s recent ultimatum and new U.S. banking restrictions that hinder fuel imports by the private sector (SMEs).

Frequently Asked Questions (FAQ)

1. What caused today’s massive blackout in Cuba?
The blackout was triggered by an unexpected technical failure at the Antonio Guiteras Thermal Power Plant, causing a widespread collapse of the National Electric System.

2. Which provinces are most affected?
While the failure is nationwide, western and central regions, including Havana, Matanzas, and Villa Clara, report the highest disconnection rates.

3. When is service expected to be restored?
The Unión Eléctrica has not provided an exact date, stating that restoration efforts are slow due to the system’s fragility and lack of power reserves.

4. How does this affect people’s daily lives?
Prolonged blackouts prevent water pumping, food refrigeration, and severely impact healthcare and telecommunications services.

Sources: EL PAÍS, Infobae, Unión Eléctrica de Cuba.

How we got here

Background

The first thing we published on this topic.

Feb 10, 2026

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