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On December 2, 2025, Cuba is experiencing another day of widespread blackouts due to the severe crisis of the National Electric System (SEN), which has a generation deficit exceeding 2,000 megawatts (MW), according to the official report from the Electric Union (UNE).
During the previous day, the electrical service was affected for 24 hours, with a maximum impact of 2,105 MW at 7:00 PM.
The energy production from the 33 new photovoltaic solar parks reached 2,623 megawatt-hours (MWh), with a maximum output of 448 MW, a figure insufficient to compensate for the decline in thermal generation and the shortage of fuel.
At six in the morning this Monday, the availability of the SEN was 1,240 MW compared to a demand of 2,398 MW, resulting in a shortfall of 1,167 MW.
For the noon schedule, a deficit of 1,300 MW was estimated. Among the main incidents, UNE reported breakdowns in unit 2 of the Felton thermoelectric power plant (CTE) and in unit 3 of the Renté CTE, as well as maintenance on units 5 in Mariel, 2 in Santa Cruz, 4 of the Carlos Manuel de Céspedes CTE (Cienfuegos), and at the gas treatment plant of Energás Puerto Escondido.
Distributed generation is facing the shutdown of 102 plants — totaling 914 MW out of service due to a lack of fuel — and an additional 72 MW unavailable due to a shortage of lubricant.
In Havana, the reported that the service was affected throughout the entire day yesterday, peaking at 499 MW at 6:30 PM.
It was not possible to restore electricity due to the low availability of the system, which forced the interruption of the scheduled programming. At the time the report was closed, units 1, 2, 3, and 4 remained out of service, with a total impact of 151 MW.
During peak hours, the UNE expects a supply of 1,465 MW against a maximum demand of 3,300 MW, which would result in a deficit of 1,835 MW and potential impacts of up to 1,905 MW nationwide, or more.
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