More than 95% of power comes from fossil fuels, with no investment to upgrade the system and blackouts a regular problem

Cuba’s government says some electricity has been restored on the island after one of the country’s major power plants failed and left millions without electricity in an outage that started two days earlier.

Millions in Cuba faced another morning without power on Sunday following a third partial grid failure in two days, intensifying a crisis that has left residents struggling with blackouts and shortages. The latest collapse affected the western provinces, including Havana, where the entire capital was plunged into darkness overnight.