Root on low E
466xxx
A♭5 is the A♭ power chord. Its notes are A♭ and E♭. It is the same chord as G♯5. No third means no major or minor quality. Mute unused strings carefully.
466xxx
x-11-13-13-x-x
Numbers show frets from the low E string to the high e string; x means don't play that string.
Every A♭ and E♭ on the first 12 frets. The filled dots are the root, A♭. Build your own shape from any nearby group.
Other A♭ chords
Other power chords