In space…? Because that requires moving one part while the others stationary….

Or moving one part opposite the direction of another, to create resistance.

Windmills have used sails as fins for long time lol, its nothing new, im trying to get you think critically here.

There's plenty of conversation to be had about efficiency, heat venting, gross productivity. But "you can't capture energy from another moving body" is something billards disproved several centuries ago.