Edit to add 190 kgs per 50 kwh = 380 kgs per 100 kwh x 7 = 2,660. 
However the question as to how far that 700 kwh will get a truck along the road and at what cost including road fuel taxes remains.
Edit to add 190 kgs per 50 kwh = 380 kgs per 100 kwh x 7 = 2,660.
However the question as to how far that 700 kwh will get a truck along the road and at what cost including road fuel taxes remains.