The Antonio Guiteras Thermoelectric Plant, Cuba's largest standalone power generation unit, is anticipated to resume operations by Monday following three unexpected shutdowns in quick succession. The most recent disruption was caused by a malfunction in the economizer at the facility located in Matanzas.
Román Pérez Castañeda, the plant's General Manager, outlined two potential scenarios for restarting operations: "An optimistic forecast would see us restarting tomorrow in the early afternoon, possibly around 3 or 4 PM. Alternatively, if radiographic and hydraulic tests reveal any issues, the repairs may extend into Monday morning."
"Unfortunately, we've experienced three shutdowns in a very short span. First, there was an issue with the high-temperature reheater that required fixing eight tubes, followed by a fault in the regenerative air heater, and now, the economizer," explained Pérez Castañeda.
Comprehensive Repairs Underway
The forced shutdown is being used to conduct more in-depth repairs at the previously affected sites. "We're taking this time to thoroughly inspect and fix everything we find," stated Pérez Castañeda.
Regarding the repair status, the director mentioned that four welding seams are needed for the high-temperature reheater, with three completed so far. For the economizer, the cause of the latest shutdown, two sections of two bends require replacement, involving four welding seams—two of which are done, with radiographic checks ongoing.
Furthermore, adjustments are being made to the regenerative air heaters, the boiler furnace is being cleaned of accumulated ash and slag, and a hermeticity issue in the lower boiler section, which was causing gas and incandescent material leaks, is being addressed.
Intensive Work Schedule
Over 260 additional tasks, including electrical, automatic, and moisture-preventive measures, are being carried out. These efforts are organized in 24-hour shifts to prevent any downtime, as reported by the plant's official communications.
This incident marks the ninth time the Guiteras plant has been offline from the National Electroenergetic System in 2026. The unit was synchronized with the system on May 9, after a 90-hour repair involving nearly 300 corrective actions, only to fail again five days later.
On May 14, the Guiteras outage triggered a partial system collapse, cutting electricity from Ciego de Ávila to Guantánamo and resulting in a record deficit of 2,153 MW, surpassing the previous high of 2,075 MW on March 6, 2026.
Structural and Maintenance Challenges
The crisis is rooted in the structural deterioration of a plant that has been in continuous operation since its inauguration in 1988. Its last major maintenance was in 2010, leaving a 15-year gap when technical standards recommend thorough interventions every seven or eight years. A 180-day shutdown is necessary for this maintenance, but the regime cannot afford it amidst the severe energy crisis.
Vicente de la O Levy, Cuba's Minister of Energy and Mines, bluntly summarized the country's dire situation: "We have absolutely no fuel, no diesel, only accompanying gas."
FAQs on Antonio Guiteras Plant and Cuba's Energy Crisis
What caused the latest shutdown at the Antonio Guiteras Thermoelectric Plant?
The most recent shutdown was due to a malfunction in the plant's economizer.
How many times has the Guiteras plant been offline in 2026?
The plant has been offline nine times in 2026.
What is the current maintenance status of the Guiteras plant?
The plant is undergoing comprehensive repairs, including welding and radiographic checks, with over 260 additional tasks being performed.
Why can't the Cuban regime afford the necessary maintenance shutdown?
The regime cannot afford a 180-day shutdown due to the severe ongoing energy crisis.