What caused the blackout across Cuba?

Cuban officials cited fuel shortages and a failure tied to key generation assets, including the Antonio Guiteras plant. They also blamed a US oil blockade. Analysts point to aging infrastructure and thin reserves that left the grid vulnerable. The combination triggered a cascading outage and slow, staged restoration.

How long did the power stay out in most areas?

The nationwide outage lasted about 16 hours before the grid reconnected. Restoration began with essential services, then moved to homes and businesses. Power remains below normal capacity, so rotating cuts and localized interruptions may continue while repairs and fuel deliveries catch up.

Will flights to Havana face ongoing disruption?

Some airlines adjusted schedules, and Air France briefly suspended service. As power stabilizes, carriers will add capacity back. Canadian travelers should monitor airline alerts, consider flexible fares, and allow extra connection time. If outages recur, expect short-notice changes until grid reliability improves in key districts.

What should Canadian investors watch in the coming weeks?

Focus on grid repair updates, fuel supply developments, and the status of the Antonio Guiteras plant. Track airline schedules, Caribbean freight rates, and refined product spreads. If indicators improve, risk premium fades. If they worsen, consider trimming travel-linked exposure and strengthening hedges on oil-sensitive positions.

Global Market Insights

Cuba Blackout March 05: Grid Restored Slowly as Fuel Shortage Deepens

ByDanny Kontos March 6, 2026March 6, 2026

The cuba power outage havana enters a fragile phase as Cuba reconnects its grid after a 16-hour nationwide blackout. Output remains well below normal due to fuel shortages and an outage at the Antonio Guiteras plant. Officials cite a US oil blockade, while airlines adjust plans and service resumes slowly in Havana and the western region. For Canadian investors, the event flags energy security risks, possible travel disruption, and shifting risk sentiment across shipping and commodities tied to the Caribbean.