I'm not sure it would have much of an adverse impact. Driving the car is constantly charging / discharging it (regen braking).
I think it's more about how deep the cycles go -- just don't let the grid drain below like 30-40% battery and it likely would have no meaningful impact long term.
I think it's more about how deep the cycles go -- just don't let the grid drain below like 30-40% battery and it likely would have no meaningful impact long term.