Comment by epistasis

Those huge truck use electric motors, because electric motors have better torque. The diesel is just there to provide an energy source. There are already several haul trucks that use batteries instead of diesel. And some of them generate more electricity than they use, because they haul large loads downhill and regenerative breaking means that for the truck, its duty cycle is energy positive!

It's important to ask: why do you think thinks like large trucks can not be electrified? What assumptions do you hold that say they could never be powered by carbon free electricity?