Posted on 09/19/2023 6:00:29 AM PDT by Cronos
Pepsico explained how it uses its fleet of Tesla Semi electric trucks in a fascinating video that gives us a glimpse at the future of trucking.
Tesla has only delivered a limited number of its electric semitrucks, and most of them are believed to be in operation in Pepsico’s fleet – primarily in its Sacramento facility, which has been completely electrified and is solar-powered. .
Pepsico explained that it uses most of its 21 Tesla Semi electric trucks for deliveries within 100 miles with several stops. They operate for up to 12 hours a day.
Dejan Antunovic, electrification program manager at Pepsico, explained that three of the Tesla Semi trucks are dedicated to long-haul trucking, with routes that vary between 250 to 450 miles.
To support that, Tesla has been installing 750 kW Megachargers at Pepsico facilities. They enable charging to 80% capacity in less than 45 minutes. ...
Antunovic says that the company has been pushing the trucks to their limits, and they have been impressed. They find Tesla Semi’s regenerative braking to be particularly beneficial. As an example, he explained that, on the way down Donner Pass when going to Nevada, the Tesla Semi was able to be energy neutral by recuperating energy from braking.
The program manager noted that they have been able to achieve an efficiency of 1.7 kWh per mile on average with Tesla Semi. Pepsico specifically mentioned that this level of efficiency was achieved “over the last few months,” meaning that it has been improving.
That’s incredible, considering a rate of $0.14 per kWh, the off-peak rate in Sacramento – this would result in a 23% fuel cost reduction over the most efficient diesel trucks. You can imagine how those savings could add up pretty quickly on a large fleet of trucks.
(Excerpt) Read more at electrek.co ...
” If you have used the fuel to produce electricity(and you will) then you have gone through another process before that vehicle is able to do work. I contend that the more processes you go through, the more power is used up in the process.”
The flaw in your logic is that you don’t consider the efficiencies of each process involved. And your terminology is incorrect. But it is a common mistake for the non-informed to confuse power and energy.
Using CC NG power plants to power EV’s is more efficient than powering cars with gasoline.
“Let’s see who has the oldest functional computer,”
I have a 20 year old something that still works with my 20 year old scanner.
” About 80% of US electric power is generated by non renewable source. So where would the power be coming from to charge fleets of new electric cars and trucks?”
Natural gas.
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The greenies hate natural gas these days. They do their best to sabotage new gas pipelines. They sabotage new high volume electrical transmission lines. Biden and his admin are always denying drilling on Federale lands. Wake up Gator!
Your brave new world of EVs will be running on empty. As far as I know, you do not own an EV. Nor a hybrid.
You understood. Not just for electric although California may have added some incentives. Also, California has disincentives for diesel and gas. Still, they get to dodge taxes and virtue signal.
“The greenies hate natural gas these days. ... Your brave new world of EVs will be running on empty.”
You should think before posting! Greenies hate petroleum more! Who will be running on empty first!
“Who has 750kw chargers? That must have cost a fortune.”
With the opening of its proprietary charge connector, Tesla has confirmed its Supercharger is way more powerful than we previously thought.
It points to up to 900 kW of potential total output.
https://electrek.co/2022/11/12/tesla-supercharger-way-more-powerful-than-previously-thought/
“I’ve got 20, 20 from the man in the Stetson, anyone for 25? Do I hear 25?” </auctioneer voice>
” As far as I know, you do not own an EV. Nor a hybrid.”
But I did stay in a Holiday Inn way back.
In a new milestone, renewables generated 25% of US power in the first half of 2023. Renewables provided a quarter of the US's electrical generation during the first half of 2023 – a slight increase from 2022, according to new US Energy Information Administration (EIA) data.
Thanks, General Blather!
You are looking at the wrong data. You are looking at % change in source. Overall figures show non hydro electric renewable is about 19% over over all US Power generation for 2023
https://electrek.co/2023/08/25/renewables-25-percent-us-power-first-half-2023/
In a new milestone, renewables generated 25% of US power in the first half of 2023. Renewables provided a quarter of the US’s electrical generation during the first half of 2023 – a slight increase from 2022, according to new US Energy Information Administration (EIA) data.
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By renewables you must mean hydroelectric which dominates this sector in the US by a wide margin. To be fair, I have read that Denmark gets 55% of its power from wind. Especially offshore wind. They have loads of offshore to use for this. And it should be nearby shallow waters, so more easily built
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Denmark: power generation share by source 2022 | Statista
https://www.statista.com/statistics/1235360/denmark-distribution-of-electricity-production-by-source/
Wind power accounted for over 55 percent of the electricity generation in Denmark in 20221. According to GlobalData, wind power accounted for 50% of total power generation in Denmark in 20212. In 2019, wind accounted for 47% of Denmark’s power usage, up from 43.4% in 2017, 39% in 2014, and 33% in 201334. Denmark produces over 40% of its electricity from wind power and dominates other countries in wind deployment per capita and per gross domestic product5.
The second law of thermodynamics is not a suggestion.
Suppose you start atop a hill. You drive downhill to the bottom. Then you go back up to where you began.
Even with regenerative braking, you will have less energy upon returning to your starting point than you had before you began.
The specific energy (i.e. the amount of energy per unit mass) of Tesla's 4680-type battery is 272 to 296 watt-hours per kilogram.
Diesel fuel, by contrast, has a specific energy of 12,666.70 watt-hours per kilogram.
We're talking a difference in two orders of magnitude. This difference plays an enormous part as to why electric vehicles have an immense hurdle to climb in terms of American transportation: the portability of energy.
Whether you like it or not, if I stall on the side of the road, transporting spare fuel for my gas or diesel-powered vehicle has far fewer logistical difficulties than if my electric vehicle does the same.
I can always walk to the nearest gas station if needs must.
If your EV stalls on the side of the road, pretty much your only option is to call a towing company to get you to the nearest charging station...and depending on what part of the country you're in, that's a tall ask.
They can do it while it's charging up again.
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