The Antonio Guiteras Thermoelectric Power Plant, Cuba's largest and most efficient single generation unit, unexpectedly went offline this Saturday at 8:14 a.m. due to an "unidentified cause," as reported by the plant's general manager, Rubén Campos Olmo. This unforeseen disconnection in Matanzas exacerbates the country's ongoing energy crisis, which was already facing a projected shortfall of 1,595 megawatts (MW) during peak usage times, according to John Javier Vila Acosta, a journalist for the Cuban News Agency (ACN).
Prior to its disconnection, the Antonio Guiteras plant consistently contributed 250 MW to the National Electric System (SEN), helping to alleviate the frequent blackouts affecting both residents and the industrial sectors. Plant authorities have commenced an investigation to pinpoint the reasons behind this incident. Campos Olmo mentioned that if no significant damage is found within the plant’s infrastructure, restart procedures could begin within a few hours. However, no specific timeline has been provided for the restoration of power generation.
The Antonio Guiteras plant has experienced several shutdowns in recent months due to technical issues and breakdowns stemming from extended use and the deterioration of its facilities. Cuba's energy crisis has been further aggravated by fuel shortages and the aging power grid, leading to frequent blackouts nationwide.
The sudden halt in power generation at the Guiteras plant severely impacts the stability of the SEN, which already operates under significant constraints. Updates on the situation and the potential reintegration of the thermoelectric plant into the system are expected in the coming hours.
Recent Disconnection Incidents at the Antonio Guiteras Power Plant
Below is a timeline of disconnections at the Antonio Guiteras Thermoelectric Power Plant over the past six months:
- August 28, 2024: The plant disconnected from the SEN due to an issue with the "oil control system." Initial estimates for repair were 24 hours, but work extended to September 1, when the plant successfully resynchronized with the SEN.
- October 18, 2024: An unexpected shutdown of the Guiteras plant caused a nationwide blackout as it led to the total disconnection of the SEN. The Electric Union worked to restore service, highlighting the vulnerability of Cuba's electrical system.
- November 19, 2024: The plant was taken offline for a planned four-day maintenance to perform "urgent work on the boiler." This stoppage led to nearly total blackouts, with estimated impacts of 1,594 MW during peak demand.
- November 21, 2024: After resynchronizing and reaching a limited output of 32 MW, the Guiteras plant disconnected again for technical adjustments. It was estimated to stabilize its operations in about three hours.
- January 18, 2025: The plant exited the SEN at 9:59 a.m. due to a malfunction in the control valves of its boiler, following 45 days of continuous operation. It was estimated the plant would remain offline for up to four days for necessary repairs.
- January 22, 2025: The Antonio Guiteras plant successfully resynchronized with the SEN at 7:44 a.m. after four days of repair work. It was expected to provide approximately 270 MW of power once operational parameters stabilized.
This series of shutdowns and maintenance efforts underscores the technical and infrastructure challenges faced by the Antonio Guiteras plant, which are critical for the stability of Cuba’s electric system.
Understanding Cuba's Energy Crisis
Why did the Antonio Guiteras Power Plant disconnect?
The plant disconnected unexpectedly due to an "unidentified cause," according to the plant's management.
How does the disconnection of the Guiteras plant affect Cuba's energy supply?
The disconnection worsens Cuba's energy crisis by reducing the power supply, increasing the likelihood of blackouts, and stressing the already limited National Electric System.
What are the main challenges facing Cuba's electric system?
Cuba's electric system faces challenges such as aging infrastructure, technical breakdowns, fuel shortages, and frequent power plant shutdowns.