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keydiver
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Re: Tesla Semi Truck

Tue Mar 20, 2018 6:25 am

Electricity used to refine each barrel of oil in the US in 2016: 47.388 billion kWh / 7.21 billion barrels = 6.6 kWh/barrel


If I am not mistaken, I think what really skews the results in big oil's favor is that the main source of heat for the refining process isn't electricity, its the burning of gas or petroleum, right? So, *technically* they make it look like not much energy is being expended to refine a gallon of gasoline, because they are only including "purchased electricity". If that is true, its not an apples-to-apples comparison. I would like to see true refining costs that include the total amount of energy used for refining, not just bought electricity. Hell, since that quoted info specifies "purchased electricity", a refiner could have a diesel-powered generator onsite making electricity for refining, and that electricity wouldn't be included in these calculations. :?
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LTLFTcomposite
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Re: Tesla Semi Truck

Tue Mar 20, 2018 9:47 am

keydiver wrote:
Electricity used to refine each barrel of oil in the US in 2016: 47.388 billion kWh / 7.21 billion barrels = 6.6 kWh/barrel


If I am not mistaken, I think what really skews the results in big oil's favor is that the main source of heat for the refining process isn't electricity, its the burning of gas or petroleum, right? So, *technically* they make it look like not much energy is being expended to refine a gallon of gasoline, because they are only including "purchased electricity". If that is true, its not an apples-to-apples comparison. I would like to see true refining costs that include the total amount of energy used for refining, not just bought electricity. Hell, since that quoted info specifies "purchased electricity", a refiner could have a diesel-powered generator onsite making electricity for refining, and that electricity wouldn't be included in these calculations. :?

I assumed the reason refiners used electricity is because coal is a lot cheaper than petroleum. Same reason Saudis install solar panels, you don't want to burn stuff you can sell to other schmucks.
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RegGuheert
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Re: Tesla Semi Truck

Tue Mar 20, 2018 11:49 am

keydiver wrote:
Electricity used to refine each barrel of oil in the US in 2016: 47.388 billion kWh / 7.21 billion barrels = 6.6 kWh/barrel


If I am not mistaken, I think what really skews the results in big oil's favor is that the main source of heat for the refining process isn't electricity, its the burning of gas or petroleum, right? So, *technically* they make it look like not much energy is being expended to refine a gallon of gasoline, because they are only including "purchased electricity". If that is true, its not an apples-to-apples comparison. I would like to see true refining costs that include the total amount of energy used for refining, not just bought electricity. Hell, since that quoted info specifies "purchased electricity", a refiner could have a diesel-powered generator onsite making electricity for refining, and that electricity wouldn't be included in these calculations. :?
I don't see how you think that skews anything in oil's favor since 6.6 kWh/barrel is such a small number. For those who want to know the context of that quote, here is the link to the post where you got that quote.
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RegGuheert
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Re: Tesla Semi Truck

Tue Mar 20, 2018 12:27 pm

InsideEVs infers from "Elemental Landscapes LTD's" Semi reservation number that Tesla might now have 1230 reservations for their Semi:
InsideEVs wrote:Check out this Instragram post from Elemental Landscapes LTD. It appears to show that the company has reservation #1,230 for the Tesla Semi:
Who knows? Perhaps Tesla started their reservation numbers at 1000...
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GRA
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Re: Tesla Semi Truck

Tue Mar 20, 2018 5:48 pm

LeftieBiker wrote:There were electric milk trucks in operation in England in the 1950s.

Aka "Milk Floats," typically three- or four-wheeled golf carts with a truck body - "Psychiatrist . . . Psychiatrist": https://www.youtube.com/watch?v=QI0RiqK3XJc

More directly on point: https://en.wikipedia.org/wiki/Milk_float The float used in the Python sketch appears to be a 1954 model Wales and Edwards: http://www.imcdb.org/vehicle_38680-Wales-and-Edwards-1954.html
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RegGuheert
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Re: Tesla Semi Truck

Wed Mar 21, 2018 8:27 am

According to Electrek, the Dallas visit was for an event with PepsiCo, who ordered 100 Tesla semis. Since PepsiCo operates a fleet of about 10,000 trucks, that is only about 10% of their annual truck purchase.
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AndyH
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Re: Tesla Semi Truck

Sat Mar 24, 2018 9:33 pm

LeftieBiker wrote:There were electric milk trucks in operation in England in the 1950s.

They were still running when I lived there in the early/mid 1980s.
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LeftieBiker
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Re: Tesla Semi Truck

Sat Mar 24, 2018 9:40 pm

They called them "Milk Floats" I believe. Simple and effective.
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Re: Tesla Semi Truck

Sat Mar 24, 2018 9:44 pm

LeftieBiker wrote:Daimler, "who invented the internal combustion engine" (in the 19th century, but hey! That still means they are innovators!) has equipped 300,000 commercial trucks with sensors to gather data on traffic and weather. This puts them solidly at the end of the 20th century, in my mind. The 300,000 is impressive, anyway...

I guess you missed the part about the electric trucks they have on the road. I forget which US companies have class 6/7 EVs on the road as well. I wonder if Tesl@ were able to get any of the performance data from Fedex, UPS, et all trucks?

The Euro truck market's a bit different than the US. Most of their long-haul is via mostly electric train.

While putting sensors on ICE trucks is very 20th century, the point is that they're both testing long-haul BEV trucks but also leveraging their existing fleet to refine the auto-driving convoy aspects. Tesl@ are heading in that direction as well, but since they don't have an existing fleet, they have to follow their Mo del S model of using existing owners as their test team.

(Reductionism and nit picking are hard habits to break, aren't they? The TIR vid was to allow a pull-out to the big picture. Did we miss that? ;))
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RegGuheert
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Re: Tesla Semi Truck

Mon Mar 26, 2018 2:03 pm

RegGuheert
2011 Leaf SL Demo vehicle
10K mi. on 041413; 20K mi. (55.7Ah) on 080714; 30K mi. (52.0Ah) on 123015; 40K mi. (49.8Ah) on 020817; 50K mi. (47.2Ah) on 120717; 60K mi. (43.66Ah) on 091918.
Enphase Inverter Measured MTBF: M190, M215, M250, S280

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