With 1.7 kWh/mile it's probably more like 850-900 kWh for the pack.
Even so, why use analysis assuming Tesla would only make the 500-mile trucks? That's way off. In the 2017 Semi reveal, the range slide highlighted that the vast majority of routes are under 250 miles.
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- The mission is better supported by selling more trucks because that strategy displaces diesel demand faster
- It appears that battery supply will be the fundamental limiting factor, and 300-mile range truck will have only about 500-550 kWh per truck.
- For the US market at least, selling a greater quantity of trucks with smaller batteries is heavily incentivized by the $40k commercial clean vehicle credits from the IRA.
- One of Tesla's other major goals with the truck is to reduce the human health impacts of diesel exhaust pollution, which is a function of how many EV trucks are on the road and how many people are being exposed to the pollution. This too tilts the comparison in favor of trucks for short haul local deliveries with lots of driving in densely populated areas.
- The competitive advantage of diesel vs. battery trucks is strongest for short-haul local deliveries because with start and stop cycles the diesel truck is wasting fuel and wearing on the brakes and transmission, whereas the electric truck is just sipping on the battery thanks to regen braking. The greater acceleration power of the electric also will help it make deliveries substantially faster than a diesel truck on these routes.
If the average battery size is 600 kWh per Semi then Tesla would only need 30 GWh to make 50k trucks, which is well within Giga Nevada's current output of about 40 GWh/year.