Nearly 1,700 Emera Maine customers in central Penobscot and southern Piscataquis counties lost power midmorning Sunday.
Amanda Cummings, a spokeswoman for Emera Maine, said that a tree came down on a power line, leaving 1,690 without power.
The affected communities included Atkinson, Bradford, Charleston, Corinth, Garland, Hudson and Orneville Township.
The outages were reported just before 9 a.m. and restored before noon.