The Electric Union (UNE) announced Thursday night that the connection of eastern Cuba with the National Electroenergetic System (SEN) has been restored, following a disruption that left five provinces of the country without electricity.
"The disconnection that occurred in the eastern region of the country, which included the provinces between Holguín and Guantánamo, has been restored," reported the UNE on its social media.
The announcement, however, did not mean an immediate return of electricity to all consumers. In the comments on the post itself, many Cubans claimed that they remained in the dark or that the service had only returned for a few minutes.
"They have already restored it and they've already taken it away from me," wrote one person. Another user questioned: "Can you explain what you mean by the restored system if nobody here has power?"
The disturbance had left Las Tunas, Holguín, Granma, Santiago de Cuba, and Guantánamo disconnected, amid a day also marked by a huge generation deficit.
The incident led to the simultaneous shutdown of three thermoelectric units. One of them was Unit 1 of the CTE Lidio Ramón Pérez (Felton), which was already online at the time this information was written, according to the report from UNE.
Additionally, unit 6 of the CTE Diez de Octubre and unit 6 of the CTE Antonio Maceo were taken out of service
The Granma Electric Company described the incident as "a partial disconnection in the National Electro-Energetic System," caused by "the unexpected shutdown of the Lidio Ramón Pérez Power Plant (Felton) and the repeated fluctuations that resulted from it," ultimately affecting "the entire eastern region."
The Provincial Cargo Office then began the operations to reconnect the territory with the SEN, giving priority to the supply of centers deemed vital.
Restoring the connection with the SEN does not mean that the power is back
The difference is crucial amid the current energy crisis: reconnecting the eastern provinces to the National Electric System does not mean that all households will immediately regain service.
This Thursday, the system had only 1,170 MW of availability, compared to a projected demand of 3,200 MW. For peak hours, UNE predicted a deficit of 2,030 MW, sufficient to keep extensive areas of the country without power even after the regional disconnection was resolved.
Hence, the official announcement prompted numerous complaints.
"And when will Havana have power, circuit A 980, more than 50 hours without electricity. Until when," another user complained.
The episode adds to an energy crisis that is hitting eastern Cuba particularly hard, where prolonged blackouts have become part of daily life.
Felton, once again at the center of the disturbance
The Lidio Ramón Pérez thermoelectric plant in Felton, Mayarí, Holguín, has been involved in several of the major disruptions recorded in 2026.
In July, the shutdown of unit 1 was linked to a total collapse of the SEN, after causing fluctuations that ultimately spread throughout the system.
In February, another breakdown related to Felton and the Renté thermoelectric plant left the eastern region without electricity.
The technical situation of the plant remains precarious. On August 23, it was reported that unit 1 had a crack and over a hundred anomalies detected during the repair work.
Unit 2 also was out of service due to a malfunction on August 12, exacerbating the generation problems.
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