Cuba's Power Grid Collapses Again as US Oil Blockade Tightens

I teach a case study in my MBA class about stranded assets. It involves an oil refinery in Texas that went offline during a cold snap and caused $200 billion in economic damage. My students love it because the numbers are big and the failure feels distant and impersonal. Nobody in the room has ever had their power cut for more than a few hours. Nobody knows what it means to watch food rot because the grid failed. I didn't either, until I spent a summer in rural Indonesia in my twenties, chasing a deal that fell through, sleeping in a town where the generators ran out of diesel every other night. You learn things in the dark. Mostly that everything you take for granted (lights, water, refrigeration, the hum of civilization itself) rests on systems so fragile that a single missing input can make them collapse.

On Saturday, Cuba's power grid collapsed for the third time this month. Eleven million people went dark.

That is every Cuban citizen. That is a complete national failure of the most basic infrastructure modern life requires.

The arithmetic of strangulation

Cuba produces approximately 40 percent of the oil it needs to run its economy, which means it imports 60 percent, which means when imports stop, the country loses more than half its energy capacity in a matter of weeks. The immediate cause of Saturday's collapse was a failure at the Nuevitas thermoelectric plant in Camagüey, where ageing Soviet-era turbines cascaded into shutdown like dominos falling across a factory floor. The deeper cause is simpler. Cuba has not received foreign oil in three months.

Zero shipments. Zero barrels.

In January, President Trump warned of tariffs against any nation selling oil to Cuba, and the warning worked with the efficiency of a threat issued by someone who has demonstrated he will follow through. Venezuela, which had shipped roughly 100,000 barrels daily to Havana for two decades under preferential terms, stopped. Other potential suppliers did the arithmetic: losing access to American markets in exchange for Cuban goodwill made no commercial sense.

The energy minister calls this a blockade. The US calls it use.

The distinction matters less when you are the one in the dark.

What darkness means

Let me make the number visceral, the way I do for my students when they are drifting into abstraction. Cuba's 11 million people were already enduring blackouts of up to 12 hours daily before Saturday's total collapse. That is 132 million person-hours of darkness per day. That is 132 million hours when surgical operations are cancelled, when insulin spoils in warm refrigerators, when businesses lose output they cannot recover, when elderly people in apartment blocks without elevators sit trapped in heat that kills.

Per capita, each Cuban lost half their waking day. Every day.

The Cuban Electric Union responded to Saturday's collapse by activating what they call 'micro-islands,' isolated generating units that provide power to hospitals, water systems, and critical facilities while the main grid stays dead. It sounds technical and competent when you read it in a press release. (It is neither.) Micro-islands are triage. They are the acknowledgment that the system cannot be restored as a whole, only preserved in fragments, the way you might keep a patient alive by routing blood only to the brain while the limbs go cold.

This is not recovery. This is managed decline.

The strategy of waiting

Trump told reporters after the previous collapse that he believed he would soon have 'the honour of taking Cuba.' The phrase is ambiguous in the way his phrases often are, leaving room for regime change through internal collapse, negotiated transition, or something more direct depending on how events unfold and which interpretation proves convenient. What is not ambiguous is the strategy: apply pressure, wait for failure, let the infrastructure do the work that armies used to do.

It is strategic patience if you support it. It is slow strangulation if you do not.

The Cuban government has refused to release political prisoners or liberalize its economy, which is the American condition for lifting pressure, which is precisely the kind of demand that entrenched regimes cannot accept without signing their own termination. The US knows this. Cuba knows this. The standoff continues, measured not in troops or missiles but in kilowatt hours, in barrels of oil that do not arrive, in hours of darkness that accumulate like interest on a debt that compounds daily.

Economic warfare works slowly. It also works.

The infrastructure death spiral

Here is what my students rarely understand until I walk them through it: infrastructure failure is not linear. It is exponential. Cuba's thermoelectric plants were built with Soviet technology decades ago. They require fuel, obviously, but they also require constant maintenance, replacement parts that Cuba cannot manufacture and increasingly cannot import, and stable operating conditions that cascading blackouts make impossible. Every collapse damages equipment throughout the system. Every partial repair leaves vulnerabilities. Every day without adequate fuel accelerates the decay.

This is the infrastructure death spiral. I coined the term for a different case study, about water systems in developing economies, but it applies perfectly here. Once a system enters the spiral, each failure makes the next more likely and more severe, until the question is no longer how to restore function but whether function can be restored at all.

Cuba's grid is deep in the spiral now.

The people who do not appear in the framework

My mother worked two jobs when I was growing up. She would come home at eleven at night smelling like restaurant grease and still make sure I had done my homework. I think about her whenever I write about economic systems and the people they affect, because she would have been the first to remind me that frameworks and case studies are about real human beings, not abstractions, not data points, not victims in a geopolitical chess game.

The 11 million Cubans who lost power Saturday are families trying to keep food from spoiling. They are hospitals trying to keep patients alive through surgery with backup generators that may or may not have fuel. They are elderly people in buildings where elevators do not work and heat kills. They are mothers making decisions I hope my students never have to make, about which child eats today and which waits.

The US says Cuba's government is responsible because it refuses to make concessions. Cuba says the US is responsible because it is deliberately causing the suffering. (Both are correct, which is the tragedy.) The people in the dark do not care much about the argument. They want the lights back on.

Authorities said they were working to restore power. They said the same after the last collapse, and the one before that.

My MBA students will read this case in three years, if I live that long and the curriculum committee approves it. They will analyse the strategic logic of oil embargoes and infrastructure warfare. They will calculate the economic cost per day of grid failure, the breakeven point where a government capitulates, the game theory of blockades that escalate.

I hope they also see the people. Life is rich, even in the dark.