China is building 75 solar parks in Cuba, and the island’s power crisis is becoming an infrastructure experiment

Cuba’s energy crisis has turned sunlight into a matter of national survival. With long blackouts still hitting homes, hospitals, businesses, and transport, the island is racing to build one of the fastest solar expansions in the Caribbean, backed heavily by Chinese equipment and financing.

The shift is already visible on the grid. Cuba’s latest official power report cited 54 new solar parks producing 4,795 megawatt-hours in a day, with a peak contribution of 755 megawatts around midday. That is not enough to end the crisis, but it is enough to change the conversation from fuel shipments to energy independence.

A solar lifeline

For Cuba, solar power is not just a climate policy. It is a lifeline in a country where the electric bill is only part of the worry, because the bigger question for many families is whether the refrigerator, phone charger, or fan will work during that sticky summer heat everyone knows too well.

Reuters reported in February that Cuba had installed upwards of 1,000 megawatts of solar generation over the previous year, helped by Chinese financing and equipment donations. The government has promised to double that capacity in the coming years.

That growth matters because Cuba’s conventional power system has been battered by fuel shortages, aging thermal plants, sanctions, and a deep economic crisis. When diesel and fuel oil are hard to obtain, a solar park becomes more than a green project. It becomes a way to keep part of the country running while the sun is high.

China’s role grows

China’s role in Cuba’s solar buildout is now one of the most important pieces of the island’s energy strategy. Granma reported that Cuba’s large solar plan calls for 92 photovoltaic parks by 2028, with a combined capacity of 2,012 megawatts connected to the national electric system.

Each standard park is designed to generate about 21.87 megawatts. One of the first sites, the Escuela de Enfermería solar park in Havana, was built with Chinese technology and includes 42,588 panels, according to the Cuban report.

Effectively, Cuba is trying to replace imported fuel with infrastructure that sits on the island and keeps producing power day after day. Beijing’s help gives Havana equipment, technical support, and financing at a moment when traditional energy options are shrinking.

Why Washington is watching

This is also a geopolitical story. Cuba sits only about 93 miles from the Florida coast, and any major Chinese-backed infrastructure push there will draw attention in Washington.

Reuters has reported that U.S. sanctions and tariff threats have worsened fuel shortages by discouraging oil shipments from countries such as Venezuela and Mexico. The Trump administration has said its pressure campaign is meant to push political change in Cuba.

Here is the twist, however. Pressure on oil may be speeding up the very kind of Chinese energy foothold that U.S. officials worry about. Solar panels are not oil tankers, and once they are installed, they are much harder to block with the same tools.

The numbers behind the shift

Cuba’s official plan gives a sense of the scale. The first park in the current program was described as part of a 92-site megaproject expected to add just over 2,000 megawatts by 2028.

Granma also reported that one 21.87-megawatt park is expected to produce 35,000 megawatt-hours per year and save more than 8,500 metric tons of diesel annually, which is about 9,370 U.S. tons. Multiply that across dozens of sites, and the fuel savings become a serious strategic asset.

Still, solar power has limits. It helps most during the day, when panels are producing electricity, but Cuba’s worst shortages often hit at night, when people return home, lights go on, and demand climbs.

The storage problem

That is where the harder part begins. Without large-scale batteries or another storage system, daytime solar power cannot fully replace thermal generation after sunset.

Cuba’s latest official report still forecast a peak-hour deficit of 2,025 megawatts and possible service disruptions of 2,055 megawatts on June 24. In other words, the solar parks are helping, but the grid remains under heavy stress.

For many Cubans, that means the daily rhythm is still shaped by outages. Businesses plan around power cuts, families rush to cook when electricity returns, and basic routines become a guessing game.

A strategic bet

At the end of the day, Cuba is trying to do two things at once. It wants quick relief from blackouts, and it wants a long-term escape from imported fuel.

China also gets something from the arrangement. It strengthens ties with a longtime U.S. adversary, expands the reach of its clean-energy companies, and shows that solar technology can be used as a diplomatic tool as much as an industrial product.

The result is a project that is part power plant, part political message. For Cuba, every new solar field reduces dependence on oil that may or may not arrive. For China, every panel deepens influence in a region Washington still sees as close to home.

What comes next

Cuba’s solar expansion is impressive, but it is not a magic switch. The country still needs storage, grid upgrades, spare parts, and reliable backup generation if it wants to turn daytime progress into 24-hour stability.

So the key question is simple. Can Cuba build the next layer of the system as fast as it has installed panels?

For now, the answer is still uncertain. The solar buildout has given the island breathing room, but the blackout crisis is not over yet.

The official statement was published in Granma.