An electric semi's battery weight alone makes them not viable imo. I think it's a good idea to ignore the endless Tesla sales hype and brand reinforcement and focus on the basic logic and physics. Musk is as fake as his hair imo and spends most of his time being very misleading while aggressively selling theoretical future projects.

I grew up in the UK with electric milk floats, a practical use of EV's for short, quiet urban delivery. There's a reason electric heavy trucks, which were marketed in the 20's and 30's lost out to diesel. https://en.wikipedia.org/wiki/Walker_Electric_Truck