When Storm Ian hit the western edge of Cuba as a strong hurricane on Tuesday.
It knocked out electricity across the whole island and destroyed some of the country's most vital tobacco crops.
In a press release, Cuba's Electric Union announced that the country's 11 million residents will begin to get power again overnight.
About a million people in the western regions of Cuba lost power at first, and then the whole system failed.
Cuba has been in the midst of severe economic crisis and power disruptions for months before to Ian's arrival.
The province of Pinar del Ro, where most of the tobacco used for Cuba's famed cigars is produced.