They have no way to generate power, and they can't bring the plant back online. I have no idea how they fix something like that without significant outside help.
https://www.bbc.com/news/world-us-canada-63036617
Cuba is completely without power after Hurricane Ian pummelled the western end of the island, its government has announced.
The electrical system is experiencing total collapse, officials said, after one of the main power plants could not be brought back online.
Based in Matanzas, 100km east of the capital Havana, Antonio Guiteras is the most important energy plant in Cuba. Its shutdown means
there is currently no electricity generation anywhere on the island.
Last month, the fuel depot in Matanzas was damaged by a huge fire, cutting the available fuel storage capacity in half and sparking rolling blackouts across Cuba.