Cuba in Darkness: Protests Erupt as Grid Collapses Under US Fuel Blockade

A massive power outage struck western Cuba on March 4, leaving millions without electricity after the Antonio Guiteras thermoelectric plant—the island’s largest—collapsed amid an intensifying US fuel embargo that has strangled the nation’s energy infrastructure.

The blackout affected two-thirds of the country, from Pinar del Río to Camagüey, including Havana. Government radio station Radio Rebelde quoted an energy official as saying that it could take at least 72 hours to restore operations at the plant, according to ABC News. By Thursday evening, crews had restored power to just 2.5% of Havana’s customers—roughly 21,100 people—as the island confronted what residents described as the worst sustained crisis since the Special Period of the 1990s.

The March 4 incident marks the latest in a cascade of grid failures that have become routine across the island. Cuba is bracing for power outages affecting almost two-thirds of the population during peak demand hours, with blackouts lasting up to 20 hours a day in some regions, according to Latin Times. The crisis has reached catastrophic proportions just days before the blackout, with generation capacity during evening peak hours expected to reach 1,185 megawatts against an estimated demand of 3,180 megawatts—a shortfall of 1,995 megawatts.

The Geopolitical Vise Tightens

The immediate trigger was mechanical—a boiler leak at Antonio Guiteras—but the underlying cause is geopolitical. The 2026 Cuban crisis is an oil shortage and Economic Crisis caused by an American fuel blockade, with the island dependent on imported oil mostly from Venezuela and Mexico; after the 2026 United States intervention in Venezuela, the blockade of Venezuelan oil left Cuba without adequate supply, according to Wikipedia. According to The New York Times, this is the “United States’ first effective blockade [of Cuba] since the Cuban Missile Crisis”.

The Trump administration escalated pressure in January 2026 with executive orders imposing what officials call “maximum pressure” to force regime change. The United States has begun blocking oil tankers heading to Cuba, targeting companies such as the Mexican state-owned Pemex and threatening the responsible countries with tariffs should they resist. Venezuela, which historically supplied roughly 50% of Cuba’s oil needs, ceased shipments after US forces captured President Nicolás Maduro in January. Threatened with punitive trade tariffs, the Mexican government was forced to suspend its oil shipments to the island in early 2026, according to Eurasia Review.

Protests Return to Cuban Streets

While official reports of weekend protests remain limited, the pattern mirrors previous outbreaks. Protests erupted hours after the October blackout began, with protesters in the Santos Suárez neighborhood of Havana constructing makeshift barricades in the streets. Without electricity, Havana’s water pumps could not operate, nor could food be refrigerated, leaving many residents in a state of “desperation,” prompting the government to cut internet access and deploy police formations to clear protesters by force, according to Wikipedia.

The current crisis follows a well-documented escalation pattern. On 17 and 18 March 2024, blackouts alongside a poor harvest and food shortages caused widespread protests primarily in Santiago de Cuba, Cuba’s second largest city, during which three people were arrested. Those demonstrations pale compared to the July 11, 2021 protests—the largest since the revolution—when authorities detained more than 1,500 people, with over 660 remaining imprisoned as of October 2022.

Economic Freefall Accelerates

Cuba’s economy has contracted by more than 15% since 2020, according to official figures, and prolonged blackouts have featured prominently in recent protests across the island, reports Latin Times. Tourism, a critical foreign exchange earner accounting for roughly 10% of GDP, has collapsed. International arrivals fell 20.5% in 2025 compared to 2024, with Canadian visitors—the largest market—down 19.5% and European arrivals plummeting as much as 43% from Germany.

The humanitarian toll extends beyond economics. Francisco Pichón, the United Nations’ top official in Cuba, warned that the crisis poses “acute humanitarian risks,” noting that five million people with chronic illnesses depend on consistent electricity for treatment, including thousands of cancer patients and more than 32,000 pregnant women. UN Secretary-General António Guterres stated he is “extremely concerned” about Cuba’s humanitarian situation, warning it could “worsen, or even collapse” without adequate fuel access.

The crisis has triggered a historic exodus. According to official figures, the Cuban population shrunk by 10 percent between December 2021 and December 2023, mostly due to emigration, according to Human Rights Watch. More than 250,000 Cubans crossed into the United States in 2022 alone—exceeding the combined total of three previous mass exoduses.

Infrastructure at Breaking Point

Cuba’s electrical infrastructure suffers from decades of underinvestment and sanctions-imposed maintenance challenges. Authorities have noted that some thermoelectric plants have been operating for over 30 years and receive little maintenance given the high cost, with U.S. sanctions preventing the government from buying new equipment and specialized parts, reports Local 10 News.

The Antonio Guiteras plant, built decades ago as the grid’s backbone, has become its Achilles heel. On 4 December, the Antonio Guiteras thermoelectric plant failed again, causing a nationwide blackout; a 24-hour blackout ensued following a mechanical breakdown at one of Cuba’s largest plants on 11 September 2025. Each failure cascades through the fragile grid, leaving authorities to implement rolling blackouts affecting predetermined circuits—a rationing system that has become Cuba’s new normal.

What to Watch

The trajectory depends on three variables: US policy, Russia’s capacity to supply oil despite threats, and Cuba’s willingness to implement structural reforms. President Trump has called on Cuba to “make a deal before it’s too late,” though the terms remain unspecified. NBC News reported that US-Cuba negotiations involve Raúl Castro’s grandson—not senior Communist Party leadership—suggesting limited scope for breakthrough.

Regional dynamics matter. Mexico, under pressure from tariff threats, suspended oil shipments but continues humanitarian aid. Russia pledged continued supply despite US blockade warnings, though capacity remains uncertain amid its Ukraine commitments. China offered verbal support but has yet to announce concrete energy assistance beyond solar farm agreements signed in 2024.

Domestically, the government faces impossible choices: further ration electricity and risk intensified protests, or burn through scarce fuel reserves to buy temporary stability. With foreign reserves depleted, external debt exceeding 35% of GDP, and no clear path to economic recovery, Cuba’s leadership confronts a crisis that rationing alone cannot solve. The question is not whether the lights will go out again, but whether the system can endure when they do.