Cuba experienced a total nationwide power outage on Monday, July 6, after a complete disconnection of the national electrical system [1, 2].
The collapse of the Sistema Eléctrico Nacional (SEN) underscores a deteriorating energy infrastructure that has left millions of citizens without basic services. This failure disrupts essential government functions and public health systems across the island.
The blackout began at 12:17 local time [2]. In Havana, power cuts lasted more than 35 hours [3], while other regions remained without electricity for up to three days [3].
A Cuban government spokesperson said, "Ocurre una desconexión total del Sistema Electroenergético Nacional. Se investigan las causas. Se continuará informando al respecto" [1].
This event marks the third nationwide blackout in 2026 [2] and the eighth such occurrence within the last 24 months [1]. The Cuban government said the current situation is "crítica" [3].
While official sources said the causes are under investigation [1], other reports suggest the crisis is linked to the failing state of thermoelectric plants [4]. An energy analyst cited by Cronica said the electrical crisis is aggravated by the state of these plants and an oil embargo imposed by Trump since January [4].
Authorities have not yet provided a specific timeline for the full restoration of the grid in the hardest-hit regions.
“The Cuban government recognizes that the situation is 'crítica'.”
The frequency of total grid collapses—eight in two years—indicates a systemic failure of Cuba's energy infrastructure rather than isolated technical glitches. The combination of aging thermoelectric plants and external economic pressures, such as the cited oil embargo, suggests that the island lacks the reserve capacity or fuel stability to prevent cascading failures, leaving the population vulnerable to prolonged outages.
