Cuba's power grid collapses islandwide as oil blockade deepens
Islandwide blackout on Aug. 3 follows three nationwide outages in July and comes as a US oil blockade cuts fuel supplies, officials said.
Mateo Fernandez ·
Cuba suffered an islandwide power grid collapse on Aug. 3, 2026, officials said, after three nationwide blackouts in July. The outage intensified an ongoing energy emergency that authorities say is aggravated by a US-imposed oil blockade and aging generation and transmission infrastructure.
Islandwide blackout and fuel blockade
Officials said the failure left hospitals, water systems and public transport relying on emergency measures; no comprehensive restoration timeline was immediately released. Data showed the country experienced multiple system-wide failures in July, and the latest collapse is the broadest to date, officials said.
Authorities attributed the breakdown to a combination of reduced fuel deliveries, shortages of spare parts and deterioration of generation assets. The shortage of imported fuel has forced rationing that, officials said, constrains maintenance and emergency response capacity across the national grid.
The blackout raises immediate humanitarian and political stresses: sustaining medical services and potable water depends on generators and fuel stocks, and disruptions can amplify public discontent and migration pressures. Internationally, the incident sharpens scrutiny of the blockade's humanitarian effects, officials said.
If repair crews can secure replacement parts and fuel, power could return to major urban centres by August 7, 2026; if supply constraints persist, outages may continue beyond that date.