From what I've heard, not at all. Basically, this is making bike riders go slower so that they can ride longer and put some small amount of power into a bus. H

From what I've heard, not at all. Basically, this is making bike riders go slower so that they can ride longer and put some small amount of power into a bus. However, what some gyms are doing is hooking up essentially the same thing to their stationary bikes, and hooking those up to their power grid. This has apparently saved them decent chunks on their power bill.