they are basically running those trucks close to 24x7

Those trucks hold over 100 gallons of fuel, they get about 10 mpg, and can go over 1000miles on a tank of gas.

They can fuel a truck in a matter of minutes, vs several hours.

I know several people who drive trucks for aliving, and my opinion is they are not viable at. range of 500 miles...I personally do not think a range of 1000 mile is viable, due to the amount of time it will take to charge the truck.