Cuba's Power Grid Collapses Again, Leaving Millions Without Electricity
Cuba's national power grid collapsed again on Friday, plunging the entire island into darkness and leaving millions without electricity. Authorities stated that the trigger was a fault in a high-voltage transmission line in the central region, occurring around 2 PM local time. Felix Estrada, an official from the National Electric Union, said that a gradual recovery protocol has been initiated.
This marks at least the sixth partial or nationwide collapse since January, with statistics counting it as the eighth total blackout of the year. The collapse began in the area from Pinar del Río to Matanzas and extended eastward to Guantánamo within minutes. The Ministry of Energy attributed the cause to successive failures of two 220 kV lines, Matanzas–Cienfuegos and Matanzas–Santa Clara, and stated that unstable weather exacerbated the load.
By nightfall, only a few neighborhoods around hospitals in Havana had restored power, with the restoration rate for the approximately 862,000 users in the capital dropping to about 5% at dusk. Resident Frank Lorenzo reported that power had already been out for 24 hours the previous day, and the grid collapsed again just an hour after power was restored. Water pumping, transportation, and mobile networks were simultaneously affected, with rolling blackouts lasting over 30 hours even when the grid was not fully down.
Cuba's power generation system is already aging and facing fuel shortages. Since January, after the U.S. cut off oil supplies from Venezuela and pressured other oil-exporting countries, the extent of blackouts has significantly increased. Following the interruption of Venezuela's supply of about 35,000 barrels per day, which accounted for half of the island's demand, only one Russian oil shipment has been recorded since. The combination of fuel shortages at power plants and fragile transmission lines means that a single line failure can black out the entire island.
Restoration is still progressing through microgrids and local circuits, with the Santa Cruz units and associated gas units prioritized for reconnection. The incremental information is not in new generation technologies, but in the fact that the national system can no longer withstand single-point transmission failures, turning blackouts from scheduled load shedding into repeated systemic resets.
In market mechanisms, this is a combination of energy blockade and infrastructure failure. There is almost no buying interest in Cuba's domestic power assets; external funds are flowing towards alternative fuel routes, remittances, and offshore hedging. The selling pressure comes from any production, cold chain, and tourism that still rely on continuous power supply from the island. The beneficiaries are external pressure groups controlling fuel imports; the pressured parties are households, water pumps, backup power for hospitals, and small private shops.
Source: Public Information
ABAB AI Insight
The collapse of Cuba's power grid is not due to a single lightning strike, but rather a systemic instability resulting from the combination of fuel accounting and aging units. The island has long relied on imported oil to sustain thermal power units, and after the cut-off of Venezuelan oil supplies, the daily demand gap directly impacts boilers and high-voltage corridors. When the two 220 kV lines in Matanzas trip, the eastern and western segments cannot support each other, and the entire island reverts to microgrid rescue. This is a similar failure to the shutdown of the main plant in Matanzas at the end of 2024: insufficient generation capacity and no redundancy in transmission.
Capital pathways are determined by external switches. The U.S. has framed the Venezuelan oil and transshipment threats as a blockade, leaving Cuba to rely on sporadic shipments and associated gas to cope. Funds cannot flow into new units and line upgrades, only into temporary microgrids and hospital circuits. The motivation for the pressure groups is to use electricity as a lever of power, while on the island, the priority is to ensure water pumping and medical services before discussing residential lighting. Without continuous fuel, there is no investable power grid.
In a similar position, the system is more akin to an isolated island system after fuel is cut off, rather than the seasonal blackouts of ordinary developing countries. The industry phase is shifting from "planned blackouts" to "systematic resets of the entire grid." Whoever controls the docking of oil tankers controls when the lights come back on.
Structural changes involve dual tightening of regulation and supply chains. Electricity prices and supply times are no longer determined solely by domestic dispatch but are co-priced by external fuel channels and the lifespan of internal lines. The mechanism is: lack of oil leads to insufficient standby for units, insufficient standby turns a single line failure into a nationwide collapse; the more frequent the collapses, the shorter the maintenance windows, making the next collapse easier.
ABAB News · Cognitive Laws
- The true fuel of the power grid is continuously arriving oil.
- Without redundant high-voltage lines, a single trip can lead to nationwide blackout.
- The switch for the lights can be written at someone else's port.