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Re: Tesla drives 1800 miles w/out stopping for a charge. Future is really EV!

By: ribit in 6TH POPE | Recommend this post (0)
Fri, 28 Oct 22 2:47 PM | 29 view(s)
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Msg. 36895 of 60008
(This msg. is a reply to 36891 by Decomposed)

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...I never let facts or minute details interfere with my theories.
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...ok, it was as expensive as if they had just gone in a similar size and weight vehicle that wasn't electric. There is energy lost in the transfer of gas energy to electrical energy.

...I don't know everything about the laws of thermodynamics. I quit studying them when Maxine Waters expressed a desire to repeal them.




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Liberals are like a "Slinky". Totally useless, but somehow ya can't help but smile when you see one tumble down a flight of stairs!




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The above is a reply to the following message:
Re: Tesla drives 1800 miles w/out stopping for a charge. Future is really EV!
By: Decomposed
in 6TH POPE
Fri, 28 Oct 22 6:14 AM
Msg. 36891 of 60008

ribit:

Re: “...the gasoline used to fuel the battery did not save energy. There is energy lost in the conversion process. This trip was as expensive fuel wise as if they had gone in a humvee.”
I don't think so.

A Tesla gets about 4 miles per kw/hr of electricity.

A gallon of gas is equal to 33.7 kw/hr of energy. If we had a perfect generator, 13.35 gallons of gas would take a Tesla 1,800 miles. Of course, generators aren't perfect. Pistonheads.com says we should estimate a gas generator as being 25% efficient. So our Tesla would initially need to carry 53.4 gallons of gas. And its effective mileage, instead of being in the ballpark of 150 mpg would instead be a quarter of that... about 35mpg, which is what a typical non-electric car can get these days.

With the initial fuel weight (335 lbs) and generator weight (50 lbs) added, the Tesla's mileage would fall still more... maybe down to 25 mpg or so. That's much better than the 8mpg highway that a Humvee gets. And the Tesla really could go 1,800 miles without a stop, which a Humvee couldn't. You'd just have to find a driver willing to sit behind the wheel for 30 hours. Count me out. I've done many stints of ten hours (VA to NH), stopping only for gas and restroom breaks, and found that to be about my limit.






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