A nationwide electricity outage hit Cuba on Monday, July 6, 2026, leaving the entire island without power [1], [2].

The collapse of the power grid disrupted critical infrastructure beyond electricity, including internet connectivity, and water utility services [2], [3]. These failures impact the daily operations of the country and the accessibility of basic needs for millions of residents.

Cuban authorities and the Empresa Eléctrica de Cuba said that the outage was caused by a significant generation shortfall [1], [2]. The deficit exceeded 1,700 megawatts [1]. Officials said the failure was due to a combination of depleted fuel reserves and aging infrastructure, which left the grid unable to sustain demand [1], [2].

Reports on the restoration of services have been inconsistent. Some sources said that power was restored across the island by Friday [4], while other reports said that electricity remained out on Monday [2].

The instability of the Cuban power grid has become a recurring issue as the government struggles to maintain outdated equipment. The current crisis underscores the vulnerability of the island's energy sector to fuel shortages—a problem compounded by economic constraints and the lack of modern investment in the electrical network [1], [2].

The deficit exceeded 1,700 megawatts

This outage highlights the critical fragility of Cuba's energy infrastructure. The combination of fuel scarcity and decaying hardware suggests that the grid is susceptible to total collapse even without external shocks like hurricanes. The resulting loss of water and internet services further isolates the population and complicates government efforts to manage public utilities.