Cuba's Power Grid Sees Potential Relief with New Generator Units

The energy crisis in Cuba might see a small improvement starting Monday, June 29, 2026. Two important generating units are set to rejoin the National Electrical System.

Authorities are warning that power outages will likely continue because there's still a big gap between electricity demand and supply. However, bringing back the Antonio Guiteras thermoelectric plant and a unit from the Mariel plant could boost available power and lessen the frequent disruptions affecting many Cubans.

📄 Where and When

This news comes after several days of widespread, lengthy blackouts across Cuba. The National Electrical System is facing one of its toughest periods in years due to breakdowns, planned maintenance, and fuel supply issues.

The main positive development is the return of the Antonio Guiteras thermoelectric plant, which is one of Cuba's largest. It has finished necessary maintenance and technical tests.

Additionally, unit number five at the Máximo Gómez thermoelectric plant in Mariel was also scheduled to be reconnected to the grid around Sunday night.

📄 Why It Matters

The addition of these two plants is a significant increase in the country's energy capacity. It's especially crucial during this complex phase for the electrical system.

This situation directly impacts millions of Cubans who have been living with prolonged blackouts. While not a complete solution, it offers a potential reduction in the severity of outages in some areas.

📄 What They're Saying

Even with these units coming back, energy experts stress that recovery will be slow. They advise against expecting an immediate fix to the generation problems.

Official data shows a substantial amount of installed capacity remains offline due to a lack of fuel. Other units are undergoing repairs or facing operational difficulties, limiting the system's ability to respond even when new generation sources are added.

📄 What's Next

The focus now is on how stable these returning units will be. In recent months, several plants have failed shortly after being restarted, forcing constant adjustments to power distribution plans.

While the synchronization of Guiteras and Mariel won't eliminate blackouts, it could reduce their impact and offer temporary relief to the population dealing with this extended energy crisis. The coming days will be key to seeing if the system can maintain this improved electricity availability.