It's been almost one year since Hurricane Maria devastated Puerto Rico, and as of Tuesday, 100 percent of customers who lost power because of the storm have electricity again. The Puerto Rico Electric Power Authority (PREPA) told ABC News it restored electricity on Tuesday to the last two families that needed it, in Ponce. There are some customers living in the El Yunque rainforest that are still without power, but PREPA must wait for the Forest Service to approve the installation of poles. Hurricane Maria was a deadly Category 4 that decimated Puerto Rico's electrical grid last September, resulting in the longest blackout in American history.

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