Fails to account for EV raw materials

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Aug 14, 2022
8:30:24am

kapcreations All-American

Fails to account for EV raw materials

And the carbon required to mine the rare minerals, ship them to another country for processing, ship to another country for manufacturing, ship to another country for assembly, before being sold as independent units than need to be assembled into whatever its use.

Things have gotten better since the Prius hit the market, but not for the first 2-3 steps

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kapcreations

Bio page: kapcreations
Joined: Aug 17, 2010
Last login: Sep 20, 2024
Total posts: 4,868 (19 FO)

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Messages

Author

Time

Re: EV efficiency - This shouldn't be much of a surprise at all but I thought the graphics were interesting

supertux Nice.

8/14/22 8:10am

I will say that it doesn't really consider a couple of things

supertux

8/14/22 8:13am

That post is without merit

Zoobieman

8/14/22 8:20am

AC is not powered by the alternator. That's not how AC works.

Dryfire

8/14/22 8:42am

Yeah that's what I was getting at. Belt driven compressor has to be more efficient than electric. But I'll admit

supertux

8/14/22 8:46am

Umm, weight is a HUGE factor.

byu1

8/14/22 9:36am

Not as big a factor when you are regenerating 65 % braking energy

Zoobieman

8/14/22 4:29pm

Thats like comparing the energy value of a one pound peas on the table vs

ABCoug

8/14/22 8:21am

They are way more efficient throughout lifecycle - all up including the cost

delux_247

8/14/22 8:44am

Going to buy a electric truck and put a hydroplant in the bed I'll be killing it

ABCoug

8/14/22 8:50am

huh... that's like saying that if Mr. Fusion" reactors were more efficient, we'd

Rodolpho

8/14/22 9:03am

Of course which is why we do what we do, also why subsidies are throwing money

ABCoug

8/14/22 9:24am

Those numbers look way off.

kccougar

8/14/22 8:28am

Please research and correct then

Zoobieman

8/14/22 8:31am

It doesn't take research to see the problems

kccougar

8/14/22 8:36am

It also varies greatly on the kid of driving you're doing. Stop and go under 45mph, maybe close to 20%. Highway driving

supertux

8/14/22 8:44am

please share the simple math that proves this

Rodolpho

8/14/22 8:50am

You're kidding right. . . Compare hybrids vs non hybrids at it is about 22%

Zoobieman

8/14/22 9:00am

Ok. Tell us about regenerative losses. Hint: they average 44%.

kccougar

8/14/22 9:10am

Fails to account for EV raw materials

8/14/22 8:30am

Link with answers

Zoobieman

8/14/22 8:36am

If energy efficiency was driven by pure science, not politics, we'd have Thorium reactors producing our energy

8/14/22 8:37am

Again with electricty (i.e. EV) the power source has already been generated

ABCoug

8/14/22 9:01am

The issue at hand with EVs is not the efficiency of the drivetrain

Daedalus

8/14/22 8:47am

No doubt but I'm and engineer and the energy efficiency is what struck me. It's like comparing a heat pump to a heat

supertux

8/14/22 8:53am

Look at diesel locomotives for a real life case study for the advantages of

ABCoug

8/14/22 9:02am

I think a better metric would be $/mile. Energy density/vehicle mass,

delux_247

8/14/22 9:04am

Solid point. Batteries are heavy, slow charging, less energy dense, and expensi

Zoobieman

8/14/22 9:18am

However, batteries can charge overnight at your house, so unless you're on a road trip, the time is takes to charge is

SingleStrapBackpack

8/14/22 1:20pm

That’s why the Lightning is terrible at towing

8/14/22 12:02pm

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