Even a version without AC charging (just solar + regen) with a smaller battery seems like a good deal
The amount of solar power available to the square area on top of a trailer is negligible compared to the energy required to haul it long distances. Regen braking would probably only be worth it in some limited circumstances.
The amount of solar power available to the square area on top of a trailer is negligible compared to the energy required to haul it long distances. Regen braking would probably only be worth it in some limited circumstances.