So in a way you could say that the friction resulting from engaging the generator has byproducts of both electricity and dust, rather than just dust produced by disc brakes? And that since the energy required to stop in both cases should be equivalent, it must mean less dust when using the generator, because the electricity subtracts from it?
You're headed in the right direction, the only thing you are missing is hybrids & EV's can generate 100% of their braking force with the generator during gentle driving. So no dust at all.
They still have brake discs & pads, but mostly just for panic stops & holding in place when stopped.
I guess I meant that even ignoring breaks entirely, there must be some wear ("dust") inside of a generator resulting from the rub of physical parts, but I take it to be a very tiny amount.
