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Old 12-20-2018, 11:06 AM
 
Location: Proxima Centauri
5,770 posts, read 3,219,640 times
Reputation: 6105

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Quote:
Originally Posted by boxus View Post
Yes, rich people and their $70k+ Teslas are trying to kill electric.

I like how you assume the only reason people buy electric, is due to the price of gas.

If you are the type to do so, guess you do not really care about the environmentalism of it anyway.

How many Mercedes turbo diesels are being bought for every Tesla sold?

How many BMW 700s are being bought for every Tesla sold?


At least Hummer went out of business when they got 7 MPG and gas went to four bucks.
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Old 12-20-2018, 11:10 AM
 
Location: Proxima Centauri
5,770 posts, read 3,219,640 times
Reputation: 6105
Quote:
Originally Posted by remco67 View Post
When electric cars become more affordable and battery issues are mostly solved, thats when we will go electric. The market will do it on its own.

In 2018, you have a valid point. Back in 2001 the electric car of its day was sued out of existence. The car companies sued California for raising their emission standards. Then Bush Jr. threw the power of the federal government into the lawsuit, siding with the auto industry.
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Old 12-20-2018, 11:38 AM
 
34,278 posts, read 19,358,607 times
Reputation: 17261
Quote:
Originally Posted by thecoalman View Post
This really becomes a complicated discussion because if you were going to compare you would need to account for everything. For example the electric motor may be far more efficient than a gasoline engine but the power station that converted gas/coal into electric may only have an efficiency of 60% at best. There is inefficiencies introduced with transmission. Of course gas has it's own inefficiencies, e.g it's piped which requires pumping where gravity cannot handle it and then trucked to the gas station.



There is very long list of things you would need to consider to make any true comparison.

What utter nonsense. This isnt a "complicated" discussion AT ALL. The power station that converted fuel into power is insanely efficient in comparison to what a gas engine is going to do on a production car. The average gas engine in a car runs at about 20% efficiency. 20%. A power plant averages 60% as you say. As the other poster pointed out, they're not even remotely in the same class.
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Old 12-20-2018, 12:23 PM
 
26,694 posts, read 14,555,493 times
Reputation: 8094
Quote:
Originally Posted by greywar View Post
What utter nonsense. This isnt a "complicated" discussion AT ALL. The power station that converted fuel into power is insanely efficient in comparison to what a gas engine is going to do on a production car. The average gas engine in a car runs at about 20% efficiency. 20%. A power plant averages 60% as you say. As the other poster pointed out, they're not even remotely in the same class.
Except this is not correct.

https://www.quora.com/How-energy-eff...bustion-engine
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Old 12-20-2018, 12:27 PM
 
26,694 posts, read 14,555,493 times
Reputation: 8094
Quote:
Originally Posted by greywar View Post
What utter nonsense. This isnt a "complicated" discussion AT ALL. The power station that converted fuel into power is insanely efficient in comparison to what a gas engine is going to do on a production car. The average gas engine in a car runs at about 20% efficiency. 20%. A power plant averages 60% as you say. As the other poster pointed out, they're not even remotely in the same class.
Here you go. List of power plant efficiency by type:

Coal: 30%
Fuel: 30%-60%, average around 40%

https://www.brighthubengineering.com...-power-plants/
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Old 12-20-2018, 12:47 PM
 
34,278 posts, read 19,358,607 times
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Quote:
Originally Posted by lifeexplorer View Post
Here you go. List of power plant efficiency by type:

Coal: 30%
Fuel: 30%-60%, average around 40%

https://www.brighthubengineering.com...-power-plants/
LOL. I used the other posters number of 60%-which to be fair some of the new plants DO get. diesel power plants get about 40%, so even using those....the internal combustion engine on average gets 20%. Its a 2X factor better to get your power that way rather then generating it at the vehicle.

Then we should look at the drive train. Electric vehicles have a FAR more efficient drive train. 1 gear ratio. Thats it. Vs's a internal combustion engine which requires multiple gears. 5.6% loses for a normal driveline.

Idling? Another 17.2% loss

Braking loses? Another 5.2% or so-because electric cars take advantage of regenerative braking.

This is not complicated because of the immense differences in efficiency. And thats before we start talking about just how reliable electric vehicles are long term. in 1980 this was a arguable topic, but its 2018 and the tech today makes electric vehicles the better choice by far.
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Old 12-20-2018, 12:55 PM
 
Location: Morrison, CO
34,229 posts, read 18,561,496 times
Reputation: 25797
What is the average loss in energy that electricity transmission causes per mile? How is that factored into your "efficiency" greywar?

Ultimately, I would love to get off the grid with solar panels on my house, but the up front cost does not make sense for me yet. The best solution obviously would be to have solar panels running your house, and charging your cars. I can see that someday, but of course the utilities will fight that, or make it not possible.
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Old 12-20-2018, 03:27 PM
 
19,717 posts, read 10,109,755 times
Reputation: 13074
Quote:
Originally Posted by Pilot1 View Post
What is the average loss in energy that electricity transmission causes per mile? How is that factored into your "efficiency" greywar?

Ultimately, I would love to get off the grid with solar panels on my house, but the up front cost does not make sense for me yet. The best solution obviously would be to have solar panels running your house, and charging your cars. I can see that someday, but of course the utilities will fight that, or make it not possible.
I remember reading of some woman, Florida maybe, who was violating codes for not being hooked the city's utilities.
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Old 12-20-2018, 03:29 PM
 
Location: Victoria, BC.
33,521 posts, read 37,121,123 times
Reputation: 13998
Quote:
Originally Posted by Floorist View Post
And I can buy a good used car here for $300.
A good car? Yeah right....
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Old 12-20-2018, 03:30 PM
 
34,278 posts, read 19,358,607 times
Reputation: 17261
Quote:
Originally Posted by Pilot1 View Post
What is the average loss in energy that electricity transmission causes per mile? How is that factored into your "efficiency" greywar?

Ultimately, I would love to get off the grid with solar panels on my house, but the up front cost does not make sense for me yet. The best solution obviously would be to have solar panels running your house, and charging your cars. I can see that someday, but of course the utilities will fight that, or make it not possible.

5% loss in transmission. Any other questions? I suppose I could ask how much gas is used moving gasoline around too.


For REAL fun...how much electricity does it take to refine 1 gallon of gas? Again another example of why this argument against electric vehicles is not complex at all.
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