Electric truck - tow vehicle of future ?

If you take the driver pay and benefits out the cost of operating a bus, it costs about $1-1.50 per mile when fuel, maintenance and insurance are factored in. I don't have a breakdown of these costs, but there will still be insurance and some maintenance and electric costs operating a BEV (battery powered plugin) over a typical HEV (diesel hybrid). To reach cost parity (if incentives were not present), I'm figuring 1M+ miles to break even?

https://www.thoughtco.com/bus-cost-to-purchase-and-operate-2798845