RegGuheert said:
we are discussing hauling batteries from the Gigafactory to Fremont.
Like I said, who really cares about another Elon publicity stunt! But here's back to reality, which this thread seems to neglect:
Using previously calculated theoretical data and assuming a fully loaded EV semi versus a diesel semi for a trip from SpaceX (SoCal)
to Tesla Fremont (NoCal), the following
best case analyses result:
I. Assumed Data
a. Route - U.S. 5 (no GrapeVine/mountains, no major grades - unrealistic )
b. Distance - 350 miles (assume 400 miles for margin)
c. Range for EV semi per previous posted calcs - .40 miles/kWh
d. Battery weight - equals original diesel drive-train (unrealistic as noted below)
e. Battery size - equals original diesel drive-train (unrealistic as noted below)
f. Speed - 60 mph
g. No charging on route needed
h. EV semi requires no additional axles (???)
II. Analysis - EV Semi
1. Required battery capacity; 400 miles / .40 miles/kWh = 1000 kWh
2. Battery weight based on using MS (1200 lbs -14 lbs/ kWh) = 14, 000 lbs
3. Present market battery cost per kWh of $100 (Panasonic discount) = $100K
4. Trip cost mile for energy ($.10 per kWh) = $100
III. Analysis - Diesel Semi
1. Required fuel @ 7.2. miles/gal ~ 60 gallons
2. Diesel fuel costs - $4.00 / gallon
3. Trip cost = $240 (cost per mile $.60)
4. Diesel engine cost (Cummins) - $10K
5. Trans & diff cost - $10K
IV. Major Key Issues for EV Semi
1. Amortization period required for battery costs
2. Significant additional overall weight/size/location requirements for battery
3. When in the future a TCO economic parity occurs relative to a diesel semi
4. Assumptions for charging infrastructure costs & build-out time
5. Optimum battery capacity versus charging time versus infrastructure versus addition driver layover (charging) costs