"I definitely feel confident."
Power's championship lead has been attained despite not winning a race since June, a drought he freely admits must end if he's to avoid another championship heartbreak.
With teammate Helio Castroneves a mere four points behind him going into this weekend's racing, Power says whoever can find winning form will go on to claim the title.
"At the end of the day, if you win two of the last three races or we win all three, obviously, we'll win the championship," he said.
"But it always depends on your situation at the time ... where you qualify, how you're running at certain times of the race, you know?
"It's really how you drive and what chances you may take.
"Adapt to those situations throughout the weekends that you're competing, and that's how you're going to get the best results."
-AAP