Posted on 09/19/2023 6:05:43 AM PDT by Cronos
The much-anticipated Tesla Semi has finally showcased some real-world performance data after nearly six years of anticipation. With Pepsi as its only customer currently, the truck’s performance in real-world settings has been a subject of curiosity. Thanks to the North American Council for Freight Efficiency’s Run on Less program, Pepsi’s Sacramento location has reported the mileage, stops, speed, and charging details of three Semis over the last three days. The data so far suggests that Tesla’s claims of a 500-mile range at 81,000 pounds might be accurate.
On the first day of testing, one Semi traveled 416 miles, stopping once to charge for about 20 minutes and ending the day with 17.5% battery capacity. Another Semi covered 295 miles before reaching a 21% charge and then added another 81 miles in the afternoon. The third Semi managed 377 miles on day one, leaving the battery at 1.6% before charging for three hours and completing an additional 165 miles. These numbers show that the Semis can cover significant distances within their demonstrated range and comfortably handle some charging time during the day.
On the second day, one of the Semis achieved an impressive total of 794 miles with just under two hours of charging. According to Mike Roeth, Executive Director of NACFE, the weight of the Semis is an important factor to consider. While Tesla has not officially disclosed the weight, Roeth mentions that Class 8 electric vehicles are allowed to exceed the 80,000-pound limit by 2,000 pounds, and it is likely that the Semis make full use of this allowance. He also confirms that the Semis tested with Pepsi were fairly loaded when they left and remained loaded throughout the testing period. ...
(Excerpt) Read more at energyportal.eu ...
“Uncommon out of network event”?
That was three trucks across two days of testing, so about 18% probability. In a carefully orchestrated event, one trucker inadvertently ran it down to a puckering 1.6% charge on a regular route. Not exactly inspiring.
80% of 900kw in 45 minutes?
It has a 1000v architecture so some math...
900kwh @ 1000v = 900amps feeder.
That’s a big cord. 9 x 100amp connections? 3 x 300?
I’d really like to know how they do that.
Disclaimer - I just had a total knee replacement and am bit foggy right due to the pain meds...
The article is preceded by dark picture of dozens of dark cloud emitting towers and chimneys.
These pictures are artificially darkened to portrait doom and gloom of fossil fuels.
In reality, they emit mostly just water and the “smoke” is water vapor, white by definition.
And, by the way, they produce electricity needed to power these trucks!
“Having more superchargers does not fix the 3 hour charge time. “
It does by reducing the time to charge.
“I’ve driven those mountain passes numerous times. I’ve had to pull over on occasion and let the brakes cool off.”
EV’s have the opposite problem. To prevent them from rusting the are programmed to brake (when braking with motors) even when not needed.
“A very true concern is REAL stopping power.
All Tesla’s run into brake over heating very quickly when pushed to the limit.”
That happens to most every car. EV’s are designed to primarily use regenerative braking.
“Changing to carbon ceramic fixes the problem but you then loose regenerative brakes.”
Why would you loose (sic) regenerative braking?
“The last city I saw real smog was Beijing, China.”
I was in Bangkok earlier this year. Rarely say the sun.
“- also over snowy mountain passes and at temperatures that are far below optimal battery operating conditions.”
Batteries generate their own heat and are regulated to operate at optimum temperature.
“IF they had a limit of about 80,000 pounds and were using Pepsi products for a test load and NOT pillows, I would think they would wish to do serious & realistic testing.”
They had realistic loads. It was serious & realistic.
“If you were an engineer you would know that is a false statement.”
B.S., M.S. Engineering UofF
Never been there, how was it?
“Never been there, how was it?”
Except for the smog it was great. If you like big cities. I won’t be going back.
How much does a diesel rig of the same size weigh, compared to the electric rig, empty? 82K and how much was freight? What is the cost of the battery replacement? Diesel trucks go a million miles with only maintenance.
You’re easily taken for a politician as you talk nonsense.
“You’re easily taken for a politician as you talk nonsense.”
If it was nonsense you would show facts instead of attacking the messenger.
Can it do 0-60 in 2.9 seconds while pulling 80,000 lbs?
“Can it do 0-60 in 2.9 seconds while pulling 80,000 lbs?”
Watch Tesla Semi blow past diesel trucks up a hill
https://electrek.co/2023/07/17/tesla-semi-blow-past-diesel-trucks-up-hill-video/
Drag race: https://www.youtube.com/watch?v=2tfyGd-ZFZY
Yeah, I have known a lot of people with engineering degrees who were anything but an engineer.
Texasgator claiming to be an engineer is an insult to real engineers. He’s just an EV fanboy living in his own little fantasy world.
“Yeah, I have known a lot of people with engineering degrees who were anything but an engineer.
Texasgator claiming to be an engineer is an insult to real engineers. He’s just an EV fanboy living in his own little fantasy world.”
Another “I can’t dispute TG facts so I will falsely slander the messenger” post!
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