The Model 3 Tesla takes one fourth the energy to move down the road of a comparable in size and weight car. The Model 3 takes 250 watt hours per mile or put in kilowatts it goes 4 miles for each kilowatt hour consumed. Gasoline the E10 that urban areas must use is 114,000 btu HHV per gallon one kilowatt hour is 3414 btus so a gallon of gas contains 33.39 kwh of energy a model 3 Tesla will travel 133.56 miles on the equivalent energy. NO COMMERCIAL ICE vehicle can touch that efficiency not a single one. Electric motors are second law of thermodynamics machines , internal combustion are third law and can NEVER approach the efficiency of a electric motor for energy conversion into physical motion. Note that the 250 watt hours per mile is gross energy usage as in from plug to charger to batteries to inverter to motor to wheels. Which means the electric motor is even more efficient taking into account the round trip to and from the battery pack sorry EVs are the future it’s only a matter of time till the cost per kwh of storage drops below $100 at that point no internal combustion engine can complete on a cost per mile at even 15+ cents per kwh retail. Tesla is at $125 and falling once they get there new Austin gigafactory open they will be dang close to $100
There are some overlooked issues though. The charging issue will still be a thing. It will work for most of the places I go, even the longer trips, with a enclosed (read: hard to pull fast, uphill) trailer. Though my route will have to be accurate in this case (Eastern NC has sparse charging -— though I will probably always have access to a 240V plug somewhere out there, legally, without any opposition).
But for others, there is still going to be sparse areas.
Then there is battery capacity for higher towing loads. Cost per kilowatt hour won’t help if you can’t store enough of them on board.
To get the bigger truck market (assuming the commies don’t take them from us), Tesla will have to improve the amount of charge the batteries will hold for a given weight. I don’t see people buying trailers with batteries, but I have been wrong before...
Gee, if only we could figure out how to run them on gasoline.
The overall efficiency for a Tesla should take in account the efficiency of the generating plant supplying the electricity.
“4 miles for each kilowatt hour consumed”
That is over 60 mpg at today’s prices.