A tesla semi weighs about 25k
A tesla semi weighs about 25k pounds and a diesel semi weighs about 12k. Max weight allowed in the us is 80k pounds. When a Tesla semi is attached to a trailer it must haul about 13k pound less than a standard semi. This means more trips for the same load as a standard semi. A big part of the cost of running a semi is the driver and the insurance. Drivers get paid by the mile and insurance rates are based, in part, on total miles driven. I am somewhat skeptical of the economist of this technology. I doubt that any private operators would roll the dice on this.