“Please help us, please,” Farah Rivera, 58, a resident of the Rebekah Baines Johnson Center in East Austin, said early Wednesday.
AdHome to about 150 residents, the tower is run by the nonprofit Austin Geriatric Center to provide affordable housing to especially vulnerable populations.
The outage means the elevator was not operating in the 16-story building and only flashlights, headlamps and windows were providing light.
They did not specify which areas but said circuits that had been out of power the longest would be the priority.
Rivera said the entire neighborhood around the tower, which is just east of I-35 in downtown Austin, is without power.