A person walks on a street during a blackout in Havana, Cuba, on March 21, 2026.

Cuba's national electric system has been restored following a total blackout on Saturday due to a major power grid failure. This blackout marked the second total collapse of the island's power grid within a week. (Photo by Joaquin Hernandez/Xinhua)

A woman stands at the entrance of a building illuminated by the building's generator during a blackout in Havana, Cuba, on March 21, 2026.

Cuba's national electric system has been restored following a total blackout on Saturday due to a major power grid failure. This blackout marked the second total collapse of the island's power grid within a week. (Photo by Joaquin Hernandez/Xinhua)

A person walks on a street during a blackout in Havana, Cuba, on March 21, 2026.

Cuba's national electric system has been restored following a total blackout on Saturday due to a major power grid failure. This blackout marked the second total collapse of the island's power grid within a week. (Photo by Joaquin Hernandez/Xinhua)

A person sits on a seawall during a blackout in Havana, Cuba, on March 21, 2026.

Cuba's national electric system has been restored following a total blackout on Saturday due to a major power grid failure. This blackout marked the second total collapse of the island's power grid within a week. (Photo by Joaquin Hernandez/Xinhua)