Nearly 11 months after Hurricane Maria struck Puerto Rico, the entire island has power again. The southern city of Ponce was the last to see their power grid restored according to the island’s electric utility.

Ponce was last because of landslides and rough terrain creating difficulties for the electric authority or contractors to make repairs. Helicopters were used to replace wooden power poles with steel ones that will hopefully remain standing through future storms.

A spokesman for the power utility said that there may still be some homes around the island that do not have power yet because of repairs that residents need to make. The island of Vieques is still relying on generators.

The blackout in Puerto Rico was the longest continuous blackout in US history.