DanCar
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Re: Tesla Semi Truck

Wed Nov 22, 2017 5:47 pm

New battery tech coming next year promises to reduce battery weight drastically.
http://pubs.acs.org/doi/pdf/10.1021/acs ... tt.6b00594
That article says 280 Watt*hours/kg for NMC 811 vs Model 3 at 200 Wh/kg that is a 40% improvement in weight coming next year.

http://pushevs.com/2017/11/11/lg-chem-p ... ery-cells/
According to graph in above article, improvement in battery density is 58% for next year from 410 Wh/l to 650 Wh/l.

DanCar
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Re: Tesla Semi Truck

Wed Nov 22, 2017 8:43 pm

Tesla releases really low pricing for Semi. Is there a pricing mistake?
$180K for 500 mile range, with $200K savings per year in fuel.
https://www.tesla.com/semi/

palmermd
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Re: Tesla Semi Truck

Wed Nov 22, 2017 11:32 pm

DanCar wrote:Tesla releases really low pricing for Semi. Is there a pricing mistake?
$180K for 500 mile range, with $200K savings per year in fuel.
https://www.tesla.com/semi/


That does seem low. Great news if they can hit these targets and be profitable.
Michael

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LTLFTcomposite
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Re: Tesla Semi Truck

Thu Nov 23, 2017 2:32 am

I looked for the part in the reservation agreement where it spells out the penalties Tesla will pay for late deliveries but couldn't find it
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SageBrush
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Re: Tesla Semi Truck

Thu Nov 23, 2017 5:55 am

DanCar wrote:Tesla releases really low pricing for Semi. Is there a pricing mistake?
$180K for 500 mile range, with $200K savings per year in fuel.
https://www.tesla.com/semi/

Is that the trailer or the cab ?
I'm unclear where the batteries are located

-----
x-posted from the Tesla forum:

Yesterday Tesla published anticipated Semi prices:
$150k for the 300 mile range
$180k for the 500 mile range

Previously Tesla reported ~ 2 kWh per mile consumption,
so the extra 200 miles amounts to ~ 400 kWh

$30,000 for 400 kWh capacity is $75 a kWh pack price, RETAIL
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Re: Tesla Semi Truck

Thu Nov 23, 2017 11:34 am

Refer trailers still run on diesel?
LTL
White 2012 SV delivered 10 Dec 2011 returned 25 Nov 2014 replaced with stopgap ICE Sentra
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DanCar
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Re: Tesla Semi Truck

Fri Nov 24, 2017 8:51 pm

https://seekingalpha.com/article/412749 ... plications
... the truck can handle 8 such connections. 8 x 216 = 1,728kW, or slightly above the needed 1,536kW to provide the 400 mile range in 30 minutes, with no breakthroughs. It’s simply a multiplication of what already exists. 12 charging modules (using the latest 72 amp module) x 8 Superchargers.

GRA
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Re: Tesla Semi Truck

Sat Nov 25, 2017 12:42 pm

DanCar wrote:New battery tech coming next year promises to reduce battery weight drastically. <snip>

Occasionally, it even arrives! ;) (See "Future Battery Tech" thread for numerous examples of battery vaporware). At least LG Chem is more likely to produce a real product, although the Ps they quote just puts them in Panasonic/Tesla's NCA league (those #s are cell not pack Ps). It'll be great when they arrive, and now I think we've definitely arrived at the point where, at least for passenger vehicles, energy density (Wh/l) is more important than Ps (Wh/kg). Small BEVs need to have the same range as large ones, and that requires better energy density. Of course, we want both to improve.
Guy [I have lots of experience designing/selling off-grid AE systems, some using EVs but don't own one. Local trips are by foot, bike and/or rapid transit].

The 'best' is the enemy of 'good enough'. Copper shot, not Silver bullets.

DanCar
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Re: Tesla Semi Truck

Sat Nov 25, 2017 12:51 pm

GRA wrote: (See "Future Battery Tech" thread for numerous examples of battery vaporware)...
There are no example's of vaporware there from LG and Nissan already announcing they are going to use the tech in 200 mile range car.

GRA
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Re: Tesla Semi Truck

Sat Nov 25, 2017 12:55 pm

DanCar wrote:
GRA wrote: (See "Future Battery Tech" thread for numerous examples of battery vaporware)...
There are no example's of vaporware there from LG and Nissan already announcing they are going to use the tech in 200 mile range car.

As I said, LG Chem is a real battery company, and I expect them to produce a battery that will be roughly comparable to Panasonic's NCA. For more hype, via IEVS:
Fisker Patents Solid-State Battery Tech, Commercialization By 2023
https://insideevs.com/fisker-patents-solid-state-battery-tech-commercialization-2023/

. . . The energy density gains by the technology, allowing for 500 miles of range, are already noteworthy. Add one-minute charging to the equation and we’re talking game over for internal combustion. For real, this time. No worries about street-side charging in urban centers if the current energy distribution infrastructure (gas stations, essentially) can be adopted for electric vehicles.

According to the AutoExpress, this battery is said to offer two-and-a-half times the energy density of today’s cells at one-third the price. .
. .
Guy [I have lots of experience designing/selling off-grid AE systems, some using EVs but don't own one. Local trips are by foot, bike and/or rapid transit].

The 'best' is the enemy of 'good enough'. Copper shot, not Silver bullets.

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