The son of Edmund Power, and stepson of Richard L. Shiel, Power was born in Castle Gurteen de la Poer.
He stood in the 1837 Dungarvan by-election, and won the seat, as a Whig.
In the 1837 UK general election, he instead stood in County Waterford, winning the seat without facing a contest.
In 1840, he stood down by taking the office of the Chiltern Hundreds.
[1] Power also served as a deputy lieutenant and a magistrate.