Cuba faces yet another nationwide blackout as grid collapses late Sunday; island of 10 million plunged into darkness
Nicolas MaduroDonald TrumpManuel Marrero CruzElectric UnionCuban Electricity UtilityUnion Electrica de Cuba

Cuba faces yet another nationwide blackout as grid collapses late Sunday; island of 10 million plunged into darkness

Cuba's electricity grid collapsed late Sunday, plunging the island of 10 million into darkness amid ongoing blackouts. The state-run Electric Union did not specify the cause or restoration timeline, as the country grapples with fuel shortages and aging infrastructure exacerbated by U.S. sanctions.

Al Jazeera Al Jazeera+2 sources3 August 2026 · 13:03 UTC
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Cuba's electricity grid collapsed late Sunday, marking the latest in a series of nationwide blackouts that have plagued the island this year. The state-run Electric Union announced the failure but did not provide details on its cause or when power would be restored.

Before the blackout, Havana's electricity company reported outages due to damaged transformers and planned cuts linked to insufficient generating capacity. Authorities typically attempt to recover from a total collapse by creating small, isolated power networks to supply essential services before reconnecting larger plants.2

This blackout follows a troubling trend, with the grid collapsing three times within nine days in July, including two island-wide failures. About 10 million people were left without electricity during these outages, as the country struggled to generate enough power to meet demand even after the network was reconnected.

Cuba's energy system has deteriorated due to fuel shortages and aging infrastructure, with some facilities over 30 years old and poorly maintained. The Cuban government attributes the crisis to U.S. sanctions, which have restricted oil supplies and financing. Venezuela, once Cuba's primary oil supplier, has also ceased exports amid U.S. pressure.5

The ongoing blackouts have severely impacted daily life, disrupting transport, water supplies, and medical services, leaving households struggling to preserve food and cope with the summer heat. Prime Minister Manuel Marrero Cruz acknowledged the need for economic reforms, stating, “The results will be achieved gradually.”910

Key Insight
“The grid also collapsed three times within nine days in July, including two island-wide failures in the same week, one of which left about 10 million people without electricity. Cuba's aging power system has deteriorated amid fuel shortages and US sanctions, prompting the government to launch incremental energy-sector reforms.”
Cuba plunged into darkness after power grid collapses again
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Cuba plunged into darkness after power grid collapses again
CuriousCats studied:
1
Al JazeeraAl Jazeera
“The state-run Electric Union, known as UNE, announced the collapse on X late on Sunday but did not immediately identify its cause, the extent of the disruption or when electricity would be restored.”
Al Jazeera →
2
CNN
“A man walks down a dark street as Cuba's electricity grid collapsed late on Sunday, plunging the island of about 10 million people into darkness as blackouts become more frequent, in Havana, Cuba, on August 3, 2026.”
CNN →
3
ReutersReuters
“A car illuminates the facade of a building as Cuba's electricity grid collapsed late on Sunday, plunging the island of about 10 million people into darkness as blackouts become more frequent, in Havana, Cuba August 3, 2026.”
Reuters →
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