Welcome to Tesla Motors Club
Discuss Tesla's Model S, Model 3, Model X, Model Y, Cybertruck, Roadster and More.
Register

Tesla, TSLA & the Investment World: the Perpetual Investors' Roundtable

Chunky Jr.

Hungry Member
Supporting Member
Mar 9, 2018
2,372
36,466
CA
Couple people asked who was on stage with Elon and I didn’t see a response. Just read this on Twitter. Interesting bio in the thread.

His name is Dan Priestley. Currently a Senior Manager of Semi Truck Engineering, leading development and business units. He’s been with Tesla for over a decade.

 
Last edited:

thesmokingman

Active Member
Jun 21, 2021
3,954
12,033
Socal
I wonder if Elon's bedside table photo with the numerous diet Coke cans may have been partly an attempt to get Coke onboard the Semi express.
I imagine they've gotta be kicking themselves now, you know cuz it's an extension of Coke vs Pepsi. Coke shows up in a D Tech E Wide, lamest name for a last mile truck, while Pepsi shows up in a Tesla Semi.
 

Gigapress

Everybody gangsta until TSLA goes below $200
Sep 20, 2021
1,459
35,729
Seattle, WA
This is really bad. They are trying to sell trucks but won't divulge how much weight they can carry.

Elon dunked on Gates but Gates may have been partly right. If I was Gates, I'd be on Twitter saying "I want my drive ... and I'll be stopping at a scale on the way."

Listen to what they don't say ... not what they do say.

I hope I'm wrong.
It's not much, that is clear. The truck is obviously heavy. They get a 2k lb boost due to ev but the key point here is that these local semi loads are almost all light. Only a fraction of the loads go out over 20 tons, most are 10 tons or less. Snack foods just don't weigh much.
Incorrect. Tesla has already disclosed multiple times that the Tesla Semi weighs approximately as much as diesel trucks, and the math with the Jersey barriers shown in the video appears to support this notion.

2020 Impact Report (published August 2021). Also was reiterated verbatim in the 2021 report published in May 2022.
With both the U.S. and E.U. having approved higher weight allowances for electric heavy-duty trucks, we expect the payload to be at least as high as it would be for a diesel truck. In the E.U., electric semi trucks are allowed to be 2 tons (~4,400 pounds) heavier than diesel equivalents, and in the U.S. the allowance is 0.9 tons (2,000 pounds).

Elon had answered an interview question in November 2020 saying that the penalty is less than one ton, but it’s unclear if he was factoring in the extra regulatory bonus for battery trucks which is what really counts. Also, this was two years ago so the design is almost certainly better by now. In this interview Elon also said that in the future they will use a structural battery pack (presumably 4680s) and could get up to 1000 km of range.

Can you get that [tractor] mass down to something which is comparable to existing diesel trucks? And I think the answer is absolutely yes, and we’ve demonstrated that with prototype trucks…The net result is you’re able to carry basically the same cargo as a regular diesel truck. Like, we think maybe there’s a one-ton penalty, maybe, but at this point we think possibly you could even have less than a one-ton payload reduction and it could long term be a zero payload reduction.
 
Last edited:

Cult Member

Born on the Fourth of July
Nov 4, 2016
106
1,377
Germany
Do we have more information about the Trailer? They talked about how important it is to cover both. Does that mean you get the Semi always with a Tesla Trailer? Could be extra margin but with a lot of variants and complexity. Maybe there is a simple naked one as a base.
Can't you use the Semi with existing Trailers on the road? Do you loose efficiency if you do that? The number of Trailers in the world will outdo the Semi by an order of magnitude, or not? I'm confused or maybe just overwhelmed.
 
Video cued to where they talk about the automatic clutches for the 2nd and 3rd Plaid motors for acceleration or grade duties. Previous to that time in the video they show the rigorous reliability testing. But yea, the auto clutches is pretty awesome.


Not saying it isn't - BUT - we bashed the Taycan for having clutches&gears as a raliability burdon - now on a semi that does much more milage it begs the question of reliability for me. It should be possible to have induction motors that can free-spin without current so no clutch needed - I smell a tradeoff here, not saying that it is a showstopper, but a tradeoff never the less.
 
Do we have more information about the Trailer? They talked about how important it is to cover both. Does that mean you get the Semi always with a Tesla Trailer? Could be extra margin but with a lot of variants and complexity. Maybe there is a simple naked one as a base.
Can't you use the Semi with existing Trailers on the road? Do you loose efficiency if you do that? The number of Trailers in the world will outdo the Semi by an order of magnitude, or not? I'm confused or maybe just overwhelmed.
My guess is you will only get the 500mile full-load range with the special trailer. It's easy to imagine that existing trailers are not optimized for aero and rolling resistance as the tesla one is. we'll find out
 

Ogre

On The Clown Car
Sep 6, 2021
3,864
28,091
Oregon
Not saying it isn't - BUT - we bashed the Taycan for having clutches&gears as a raliability burdon - now on a semi that does much more milage it begs the question of reliability for me. It should be possible to have induction motors that can free-spin without current so no clutch needed - I smell a tradeoff here, not saying that it is a showstopper, but a tradeoff never the less.
It’s a much simpler clutch. The Taycan is actually shifting gears. With the semi it’s either engaged or not. It might be a maintenance issue, hard for me to say.
 
Anyone have at fingertips what “less than 2kWh/mile” translates in diesel mpg?

At $0.10/KWh (wholesale) and $6/gal for diesel in California, the equivalent is 30 mpg. Class 8 Diesel trucks typically get <7 mpg, so Tesla Semi is about 5x cheaper on energy. If you can use solar + storage to recharge the Semi, very economical indeed, and very clean from an emissions perspective.
 
Truck drivers are in demand. Imagine how VERY superior driving an electric Tesla semi is in so many ways. Acceleration measured in seconds vs minutes, noise, vibration and harshness, climbing grades, descending grades. I find EV technology for ascending /descending SIGNIFICANTLY less stressful vs ICEV for cars....image the difference hauling 80K lbs! How about some autopilot? Any company that can get a Tesla semi, will not have ANY trouble staffing drivers for that semi. Period. Oh, and fuel costs are less than 1/3 of diesel. Winning
 
One of the things that struck me from the semi event was that they are extending the Tesla driving experience to semi drivers. It's not just the tech or the electric drivetrain. They are including autopilot, Tesla's amazing traction control and blending between efficiency and power. It's the whole experience. Semi drivers will prefer to drive a Tesla just as we do for more than just economic reasons. Safety, efficiency, tech, charge time and experience, and so much more.
 

About Us

Formed in 2006, Tesla Motors Club (TMC) was the first independent online Tesla community. Today it remains the largest and most dynamic community of Tesla enthusiasts. Learn more.

Do you value your experience at TMC? Consider becoming a Supporting Member of Tesla Motors Club. As a thank you for your contribution, you'll get nearly no ads in the Community and Groups sections. Additional perks are available depending on the level of contribution. Please visit the Account Upgrades page for more details.


SUPPORT TMC
Top