>. That’s roughly 28 to 35 litres per 100 km, or around 30 litres per hour at cruise speed. This is not a misprint. A truck burns in an hour what a small car burns in a week.

Let me paraphrase - a truck weighting 25 times more than a car burns only 4 times as much fuel per 100km at corresponding cruising speeds.

> At 0.25 kWh/kg, that’s still about 6.4 tonnes of battery — roughly 18 times heavier than the 350 kg diesel tank and fuel it replaces, and 6.4 tonnes of payload that disappears from every trip.

And how many tonnes of internal combustion engine, gearboxes and plumbing? It is not an insignificant matter

▲

jcgrillo 13 hours ago | parent [-]

A Cat 3406 weighs around 4000lbs and an Eaton 18spd weighs around 1000lbs. So rounding up a bit for accessories and other equipment say 6000lbs total (~2750kg).

▲

ReptileMan 13 hours ago | parent [-]

throw 350 kg of diesel. So the extra weight is 3 tonnes, not 6. Not peanuts, but I think it is manageable and the math could work, especially if they charge on off peak or surplus electricity.

	▲	jcgrillo 13 hours ago \| parent [-]
		A diesel electric hybrid, at least naively, makes quite a lot of sense to me. Your generator can be sized such that at full output at its torque peak it's making enough power to push the truck at highway speed up a slight incline (just slightly overpowered for maintaining highway cruise). Batteries take up the slack for starting, pulling hills, etc. Remains to be seen whether it actually works.