Forgotten 'clean fuel' seeks respect

PoliPino

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Oakland Township, Michigan
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I thought this was an interesting article:

http://www.detnews.com/article/20091015/OPINION01/910150336/1008/Forgotten--clean-fuel--seeks-respect

[FONT=arial, helvetica][/FONT][FONT=arial, helvetica][FONT=Times New Roman, serif]Forgotten 'clean fuel' seeks respect[/FONT]

[FONT=Times New Roman, Serif]While electric vehicles control the spotlight, German automakers make renewed case for diesels
[/FONT] [FONT=Times New Roman, serif]
DALE BUSS
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[FONT=arial, helvetica]When Johan de Nysschen attended an exclusive dinner party in Washington, D.C., last month, the president of Audi of America got a gratifying clue about whether the company's investment in "clean diesel" vehicles may pay off.[/FONT]
[FONT=arial, helvetica]Atlantic magazine publisher David Bradley was hosting one of his monthly power soirees -- this one on green technology -- with about two dozen "captains of industry and leading academics and political commentators," as de Nysschen put it, including General Electric CEO Jeffrey Immelt.[/FONT]
[FONT=arial, helvetica]"Four people around the table at different times introduced the subject of clean diesel as part of the answer," de Nysschen said. "They're part of the opinion leadership of American society, so I'm encouraged that clean diesel will gain traction."[/FONT]
[FONT=arial, helvetica]Audi's campaign is part of a major push by the four biggest German automotive brands to gain broader acceptance of diesel power by American consumers who have seemed congenitally put off by it. They are hoping to cash in on their lower-emission diesels by cutting into the some of the sales gains some Japanese and U.S.-based automakers made with hybrids.[/FONT]
[FONT=arial, helvetica]So far, diesels have roughly the same share of the American market as gasoline-electric hybrids -- 2.6 percent -- despite years of hybrid hype. And during the next year, J.D. Power & Associates expects the two types of powertrains to remain on parallel tracks as each about doubles its share of the overall market.[/FONT]
[FONT=arial, helvetica]In fact, diesel sales are better than expected. Clean-diesel versions already account for 35 percent of the sales of the Audi Q7 sport utility vehicle, double the company's expectations. About 80 percent of the sales of new Volkswagen Jetta SportWagens are diesel, and up to 20 percent of the sales of three Mercedes-Benz models.[/FONT]
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DickSilver

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Anyone who drives the gasser and TDI versions of the Jetta Sportwagen will discern immediately why 80% sold are the TDI. Fine car! I might own one now, except for the fact that VW decided to only offer one type of upholstery, which my wife will not accept. So we keep driving our B4V and B5.5V TDI cars, with velour and cloth seats.
 

NYTDI

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Mid - Hudson
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1999.5 Golf TDI AUTOMATIC trans. GLS w/PLX package silver/black cloth
go figure

And yet our (lucky) friends to the North get to choose cloth in the Golf wagon. Go figure.

Hello VW!!! Think you could give the USA the same choice? Oh and don't make cloth available only in a stripped out trim level or on a seat w/o lumbar adjust and heat.
 

rhode

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Providence
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Electric cars and plug-ins are not just around the corner like many people think as there is a vast infrastructure to build taxing electrical grid. But, clean diesel is here now so why doesn't Obama and the Congress push for this?
 

heuiinj

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Minden NV
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rhode said:
Electric cars and plug-ins are not just around the corner like many people think as there is a vast infrastructure to build taxing electrical grid. But, clean diesel is here now so why doesn't Obama and the Congress push for this?
They have NO practical mechanical knowledge to understand the difference between how far a quart of ULSD will move a car compared to one kilowatt hour of electricity needed to charge a heavy battery.
Obama and Congress ONLY realize their own emotions and everything else is irrelevant. And likewise the people that support them run on emotions rather than practical common sense.
 

Diesel_Mikey

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finnloag said:
Here's an article where the AP shows some love for the new Golf and heavily features the TDI, the most fuel-efficient, non-hybrid compact car for 2010.
Iconic VW Golf revised for sixth generation
Sorry, I just had to repeat the greatest sentence in the history of automotive journalism:

"I prefer the four-door Golf, which was the test car, because access to the second row seats is much easier than it is in the two-door Golf."

I would also have accepted "I prefer the four-wheel Golf because it's easier to drive than the three-wheel Golf." :p
 
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Durham, NC
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Quote:
Originally Posted by rhode
Electric cars and plug-ins are not just around the corner like many people think as there is a vast infrastructure to build taxing electrical grid. But, clean diesel is here now so why doesn't Obama and the Congress push for this?
They have NO practical mechanical knowledge to understand the difference between how far a quart of ULSD will move a car compared to one kilowatt hour of electricity needed to charge a heavy battery.
Obama and Congress ONLY realize their own emotions and everything else is irrelevant. And likewise the people that support them run on emotions rather than practical common sense."

Subsidies, if they should ever be used (which is another debate), are for new technology. Diesel doesn't need subsidies. Stop complaining and enjoy your diesels. They're selling great. If there were money in cars right now, companies would put out more diesels. However, cheapskate diesel drivers don't make good customers. We buy cars and drive them for 200,000 miles. Why would a car company want to cater to us?

Finally, "Common Sense" is a great way of saying things you believe but don't have evidence or reason to back them up so they become "common sense." Your common sense may tell you that the electric grid can't handle the extra cars, but all of the calculations done by electrical engineers and power companies show that the grid can easily handle a huge amount of added demand at night since most power plants are idling then and waiting for daytime peak. Thus, once again, common sense is wrong and reasonable inquiry saves the day.
 

LVTony

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Shaffer's Crossing, CO
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'04 NB TDi 5 speed
Meantime, the Germans are lobbying members of Congress, arguing against existing federal taxes that are higher on diesel than gasoline.
The government needs to lower the tax on diesel and/or raise the tax on gas. I've never understood why the tax is higher on diesel, since it is the fuel of industry. That just makes our food and goods cost more. Yes, tractor trailers put more wear on the roads, but tax that separately (if needed).

If the government lowered diesel tax and raised gas tax, diesel vehicles would become mainstream almost overnight, food and goods would cost a little less and our oil imports would go down (Yay better mileage!).

Of course, most auto manufacturers (the "big" three) would not like people driving their cars for 200,000 miles before replacing them...
 

kcfoxie

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shearwater_man said:
Quote:
Originally Posted by rhode
Electric cars and plug-ins are not just around the corner like many people think as there is a vast infrastructure to build taxing electrical grid. But, clean diesel is here now so why doesn't Obama and the Congress push for this?
They have NO practical mechanical knowledge to understand the difference between how far a quart of ULSD will move a car compared to one kilowatt hour of electricity needed to charge a heavy battery.
Obama and Congress ONLY realize their own emotions and everything else is irrelevant. And likewise the people that support them run on emotions rather than practical common sense."

Subsidies, if they should ever be used (which is another debate), are for new technology. Diesel doesn't need subsidies. Stop complaining and enjoy your diesels. They're selling great. If there were money in cars right now, companies would put out more diesels. However, cheapskate diesel drivers don't make good customers. We buy cars and drive them for 200,000 miles. Why would a car company want to cater to us?

Finally, "Common Sense" is a great way of saying things you believe but don't have evidence or reason to back them up so they become "common sense." Your common sense may tell you that the electric grid can't handle the extra cars, but all of the calculations done by electrical engineers and power companies show that the grid can easily handle a huge amount of added demand at night since most power plants are idling then and waiting for daytime peak. Thus, once again, common sense is wrong and reasonable inquiry saves the day.
You've obviously not learned anything from Snapper Co and their Divorce from Walmart.

While some may argue that VWs are not the most dependable, and some want to proclaim that diesels cost more to operate, there is a niche that I happen to be a part of that would be very hard hit if we had no diesels to drive.

I believe the TDI is the finest example of VW craftsmanship and quality, and I can say this given that the new CR TDIs have had less panic-striking problems than the potential cam issues of it's previous BRM PD engine (which was nothing compared to the massive cam failures in chipped 2.0T vehicles, including those chipped with APR sold at VW Dealers)... the car as a whole is fantastic.

Volkswagen knows that I'll come back for another one. If I were to be hit on I-40 coming home from Durham today I'd certainly be at one of the local stealerships to buy a Sportwagen (and cannibalizing parts from my wrecked car to make it be like I want: steering wheel controls and all), even with the known limitation on Biodiesel use.

Why? Because I like the 5th generation wagon a lot more than the 4th. I'll buy another one because I know how to make it last, and make it work for me. It's not a Toyota and that's why I bought it.

VW should be happy with their Snapper-like niche instead of trying to become Walmart. Snapper wised up, they're still in business (I actually own one, a third generation buyer actually).

Re: Common Sense
I live in an area where I suffer power outages during the heat of August and I pray that we never have a hard freeze or my parrots may freeze. I live in Raleigh, by the way, and I can't even get DSL where I live. I don't for a moment believe that we have "so much excess power" that we can handle plugging in 500,000+ vehicles at 5-7pm and not cause power outages and brown outs.

Call me silly, but I've lost power enough times in a wealthy part of the city to know better than to trust the "experts" who are looking at these new cars as their key to becoming the new OPEC.

I don't believe EVs will be "just another fridge on the circuit" and I don't believe the calming stories of how it'll be cheap. More energy use means everyone pays more, that's simple math. We can see this in water usage, which is a more serious problem out state should be dealing with instead of trying to build an EV structure for cars that "don't pollute."

There you can have the soapbox back.
 

chewy

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CA
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LVTony said:
The government needs to lower the tax on diesel and/or raise the tax on gas. I've never understood why the tax is higher on diesel, since it is the fuel of industry. That just makes our food and goods cost more. Yes, tractor trailers put more wear on the roads, but tax that separately (if needed).

If the government lowered diesel tax and raised gas tax, diesel vehicles would become mainstream almost overnight, food and goods would cost a little less and our oil imports would go down (Yay better mileage!).

Of course, most auto manufacturers (the "big" three) would not like people driving their cars for 200,000 miles before replacing them...
There is only 6 cent per gallon difference in the federal gas and diesel taxes. Like you said the difference probably comes from the fact that fuel taxes are used for road construction and diesels in this country is mostly used by 18 wheelers that do lots more damage to the roads that cars which are gasoline powered. Good luck somehow taxing the trucking industry.

In the end the 6 cent difference isn't the biggest factor, but it is something.
 

LVTony

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Ah, 6 cents difference in federal tax is only the beginning. State and local taxes make more of a difference. Of course now that most diesel produced meets the 10 ppm ULSD level for Europe, the cost of diesel here in the states is higher because they sell it to Europe too. Supply is effectively limited so price goes up.
 

nuclear

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I've owned both full electric and diesel vehicles (I'm also a Engineering PhD). Even the best battery technology today doesn't have the range and environmental friendliness biodiesel fueled vehicles have, not to mention about even the top of line Li-ion type production batteries have about 1/40th less energy density. Batteries (including modern proposals) use many of the most exotic and hard to produce materials that often require replacement after a few years use. Anybody who argues battery storage for transportation is a fool.
 

D_Bill

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SE Pa
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old_v1 - 01 jetta / old_v2 02 golf / new 13 jsw-6sp
I've gotten so jaded about ev's that I can't stand the topic.

Advantages of ev's :

I'm tied to the electric grid ( think about not being in or near a city ) - not - not at all free to just drive off - I used to do Maine and back in a weekend - 1000+ miles in not much more than 48 hours

I can't go more than 250 miles/day ( why would I want to leave home anyway ? It's not like there's people that drive cars/trucks all day for their job . ) ( think day trip to the lake/ocean/mtns for swimming/fishing/skiing )


I shouldn't want to tow a trailer anyhow - nor haul 4 people w/ac on in July - with alot of tools/camping equipment ( used to be a Scout leader ) - for more than into town

batteries work better in the cold -- just put yourself into their shoes on a January night in Minnesota ( add in a blizzard if you like )

mining the resources for batteries destroys the environment big time ( not that I believe in the closed ( carbon ) loop that biodiesel has . . . )

big energy has no vested interest in us being dependent upon their fossil fuels - at the gas pump or power plant

Disadvantages of ( bio ) diesel :

Not the above


Please excuse my rant - I think someday - someday when you can run ev's off a photovoltaic cell on the car's roof ( ie big energy need not be a participant ) and do 1000 miles in 16-18 hours (not 4 days as its a nice 's day drive when I take a long vacation ) it will be the equal - mpg wise and carbon footprint wise - to ( bio ) diesel . Again I'm ranting - sorry

I'm amazed at how much ahead of his time R Diesel was . . .
 

Glenn R

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Clemmons, NC
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Like you said the difference probably comes from the fact that fuel taxes are used for road construction and diesels in this country is mostly used by 18 wheelers that do lots more damage to the roads that cars which are gasoline powered. Good luck somehow taxing the trucking industry.
I don't think fuel taxes or even vehicular property taxes have anything to do with maintaining roads. They're arbitrary and nothing but another tax that goes into general revenue. I know that's not what "they" say, but "they" lie.

I've gotten so jaded about ev's that I can't stand the topic.
Another downside of mass production of EVs - we do have the power making capacity to support such a thing (just barely), but the real problem, and one that Engineers are really worried about is everyone getting home from work from 5-6 pm and all plugging their cars in at nearly the same time, along with all the other power increases that happen at the same time.

We actually want an EV tho. We commute to a city that is 12 miles away, and it's just my wife and I, no kids. One EV for us actually makes sense. Having a diesel also makes sense however.
 

dubStrom

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"zero" emissions?? NOT!!!

There is a myth out there that electric cars are "zero" emission vehicles. LIES?

First of all, manufacturing of batteries is a very "un-green" process, and requires lots of energy (lots os CO2 emission).

Second, batteries do not last forever. They must be disposed of properly, as HAZARDOUS WASTE.

Third, regarding the misleading "zero" emission claim. ONLY if you live near hydroelectric power or have access to wind power.

Americans,,pay attention to this FACT- Most electricity in the US is produced by
COAL FUELED POWER PLANTS! The fact that you plug your car in and it quietly hums along emitting no CO2 DOES NOT make it a "zero" emission vehicle! And nuclear power plants are supported by many carbon emitting support services, starting with mining and processing radioactive materials and mining and smelting iron ore.

Hybrids are complicated, inefficient environmental mistakes. The average hybrid emissions are better ONLY if you pretend that they do not have batteries and consume electricity when you plug them in :mad:

It is not clear why these lies regarding emissions for electric and hybrid are getting propagated. These vehicles DO NOT come with a wind generator!

Diesel power is a simple and very efficient alternative. My seven year old Jetta gets just as far or farther on a gallon of fuel that the average hybrid does. Some go farther, but not without some reliance on electricity produced by (usually) Coal fired power plants!!!!!

How about a 1.2 liter Turbo diesel Yaris that gets 70+ mph? Available in Europe, no batteries, WAY more efficient and simple than hybrid, and no lies about "zero" emissions!.

Sorry about the rant, but I am so sick of hearing about how green these electric and hybrid vehicles are, and particularly annoyed about the "zero" emission lies.
 

Steve-o

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dubStrom said:
First of all, manufacturing of batteries is a very "un-green" process, and requires lots of energy (lots os CO2 emission).

Second, batteries do not last forever. They must be disposed of properly, as HAZARDOUS WASTE.

Third, regarding the misleading "zero" emission claim. ONLY if you live near hydroelectric power or have access to wind power.
To be fair, drilling for oil, transporting it to a refinery, refining it, and shipping it to the point of sale isn't a "green" lossless process, either. Refining still will have an environmental impact even if the raw materials are waste products or algae.

That said, I believe anyone thinking realistically about future forms of propulsion must consider the entire lifecycle of the fuel -- from what it takes to recover it in its raw form, to how much energy is expended in making and transporting it, to how much waste is generated in its use and eventual demise. Considered that way, diesel is way ahead of hybrid or gasoline.
 

dubStrom

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dubStrom said:
...
Most electricity in the US is produced by
COAL FUELED POWER PLANTS! The fact that you plug your car in and it quietly hums along emitting no CO2 DOES NOT make it a "zero" emission vehicle! And nuclear power plants are supported by many carbon emitting support services, starting with mining and processing radioactive materials and mining and smelting iron ore.
...
Lots of hype on "zero" emissions vehicles at the North American International auto show. Nissan Leaf is available now, and they are calling it a "zero" emissions vehicle. Technically, the claim is true (no tail pipe emissions), but the reality that coal fired power plants (usually) that charge these things is STILL the hidden truth. Wiki has a good entry describing zero emissions vehicles, but I think wiki might be the place to debunk the myth. Does anyone know how to post or edit on wikipedia? It is time that Americans have the complete story on electric vehicles. Does anyone agree about this? All the while, Ford Econetic, Toyota Yaris TD, and lots of other 70+mpg vehicles are STILL not available here. Is this a serious problem for America?

http://en.wikipedia.org/wiki/Zero-emissions_vehicle
 
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mountainJohn

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dubStrom said:
Lots of hype on "zero" emissions vehicles at the North American International auto show.... It is time that Americans have the complete story on electric vehicles. Does anyone agree about this? All the while, Ford Econetic, Toyota Yaris TD, and lots of other 70+mpg vehicles are STILL not available here. Is this a serious problem for America?
sorry to start with a qualification but i'm new to tdi's and internet forums and will likely have some deficiencies on both fronts.. i sure have enjoyed just reading the forum so far but thought i ought to add another perspective to mr. dubStroms intuitions.
first a point of agreement - i think it's a tragedy that U.S. consumers don't have a small efficient option to choose for personal transport. as far as electric vehicles though, you have misspoken several times in this thread about their supposed weaknesses and environmental drawbacks.. i think it's time that you knew a more complete story on electric vehicles, and if i am successful (logistically) in posting this i will address your other posts individually that i feel are lacking facts or depth.
 

mountainJohn

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'03 Jetta Wagon
electric propulsion de-demonized

dubStrom said:
There is a myth out there that electric cars are "zero" emission vehicles. LIES?
First of all, manufacturing of batteries is a very "un-green" process, and requires lots of energy (lots os CO2 emission).
Second, batteries do not last forever. They must be disposed of properly, as HAZARDOUS WASTE.
Third, regarding the misleading "zero" emission claim. ONLY if you live near hydroelectric power or have access to wind power.
Americans,,pay attention to this FACT- Most electricity in the US is produced by
COAL FUELED POWER PLANTS! The fact that you plug your car in and it quietly hums along emitting no CO2 DOES NOT make it a "zero" emission vehicle! And nuclear power plants are supported by many carbon emitting support services, starting with mining and processing radioactive materials and mining and smelting iron ore.
first of all: any vehicle is energy intensive to manufacture. EV's even with their batteries could be less so than a traditional car. consider the fact that an ICE (internal combustion engine) weighs 5 times that of an electric motor, requires a transmission, cooling and exhaust system, and additional materials to dampen noise and vibration.. then consider that even the best ICE is built of many, many, more moving parts which will have to be replaced more frequently, and uses more consumables(oil, coolant) than an electric drive. the difference in embodied energy and the impact from mining all those materials doesn't seem as large as you would imply. Lots of hazardous waste keeping the a ICE running as well.
Second: all energy production has negative impacts on the environment and associated emissions, including renewables (not to imply that large hydro is by any means renewable); what we should be more concerned with is how much work do we get done with said negative impact. fact is we can get a lot more miles out of an electric car making it's emissions at a coal fired power plant than we can from any ICE emitting from its tailpipe. add to that the benefit that as a society we can clean up the electric grid much easier than we can clean up the 250 million or so tailpipes we rely on for personal transportation.
i'm not championing electric drive over efficient diesel - i think they both have their roles and are both valid technologies that should be further developed / adopted. i bought a tdi because of its great fuel economy and especially because i am able to buy fuel that was grown in a field and processed into a superior fuel in an adjacent county. one big advantage that i appreciate in my tdi - low end torque - would sure be complimented by a further increase (100% at 0 rpms) and the near silence of an EV though.
 

mountainJohn

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'03 Jetta Wagon
kcfoxie said:
....
Re: Common Sense
I live in an area where I suffer power outages during the heat of August and I pray that we never have a hard freeze or my parrots may freeze. I live in Raleigh, by the way, and I can't even get DSL where I live. I don't for a moment believe that we have "so much excess power" that we can handle plugging in 500,000+ vehicles at 5-7pm and not cause power outages and brown outs.
Call me silly, but I've lost power enough times in a wealthy part of the city to know better than to trust the "experts" who are looking at these new cars as their key to becoming the new OPEC.
I don't believe EVs will be "just another fridge on the circuit" and I don't believe the calming stories of how it'll be cheap. More energy use means everyone pays more, that's simple math. We can see this in water usage, which is a more serious problem out state should be dealing with instead of trying to build an EV structure for cars that "don't pollute."
There you can have the soapbox back.
no need to worry about brown outs etc., EV adoption will be slow (heck, they've been around since the 19th century and there are still people that have never heard of one) and even as we do adopt them, our electric grid will advance in ways that will make them an asset to a more stable electric grid, not a liability. picture half a million large batteries that can communicate with the grid and are programmed to buy electricity when it's cheap (middle of the night instead of 5-7p) or sell it back to the grid when demand peaks (cold parrots, hot afternoons). this isn't far out technology - it's been done and there are hundreds of smart grid pilot projects going on now in the U.S. and Europe. also EV's simply do not use more energy in fact they use significantly less (the main reason is that internal combustion engines have an efficiency near 25% while electric motors approach 90% efficiency) so switching some of our 25 million or so cars to electric drive will improve our energy "big picture".
 

dubStrom

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mountainJohn said:
...
all energy production has negative impacts on the environment and associated emissions, including renewables (not to imply that large hydro is by any means renewable); what we should be more concerned with is how much work do we get done with said negative impact. fact is we can get a lot more miles out of an electric car making it's emissions at a coal fired power plant than we can from any ICE emitting from its tailpipe. add to that the benefit that as a society we can clean up the electric grid much easier than we can clean up the 250 million or so tailpipes we rely on for personal transportation....
Well said MountainJohn. My statements neglect to take in the big picture. Perhaps the only really relevant truth still standing is the fact that the EVs are not zero emissions vehicles. The fact that they are promoted as such is my fundamental objection. You are quite correct; I overlooked the impact of ALL of the technology. That is a complex set of variables that makes the question of something like whether man is contributing to global warming look much simpler!

That said, imagine how far from realizing the truth are those that believe the EV 'zero emissions' claims...

Now that the supreme court is opening the floodgates of corporate money, facts and the truth will recede further into oblivion.

btw- Welcome to the forum. I've been a member for a few years and posted lots of stuff, but I am still a Newbie too.
 

mxs

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Steve-o said:
That said, I believe anyone thinking realistically about future forms of propulsion must consider the entire lifecycle of the fuel -- from what it takes to recover it in its raw form, to how much energy is expended in making and transporting it, to how much waste is generated in its use and eventual demise. Considered that way, diesel is way ahead of hybrid or gasoline.
Do you care to share a study with us, or is this is just your opinion? I'd like to see how total production impact is higher on diesel vs gasoline vs electricity (made mainly from coal). Really interested.
 

wxman

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mountainJohn said:
...fact is we can get a lot more miles out of an electric car making it's emissions at a coal fired power plant than we can from any ICE emitting from its tailpipe. add to that the benefit that as a society we can clean up the electric grid much easier than we can clean up the 250 million or so tailpipes we rely on for personal transportation....
That may be so, but it doesn't appear that a hypothetical EV version of the current Jetta TDI would have remarkably lower equivalent conventional (criteria) emissions, at this time at least (more wind/solar generation would change the metric obviously).

I've done admittedly very cursory calculations of emissions from electric power generation (2007 data) and compared them to CARB certified emissions data.

According to EIA, 4,157,000,000,000 kWh of electricity were generated in 2007 ( http://www.eia.doe.gov/cneaf/electricity/epa/epa_sum.html ).

Based on National Emissions Inventory (NEI) data, 4,024,000 tons of NOx, 51,000 tons of VOC, 677,000 tons of CO and 500,000 tons of PM2.5 were emitted from the electric power generation source category in 2007.

If my math is correct (no guarantee there!), that all boils down into the following comparison...



(grams/mile)

Emission.....................2010 Jetta TDI..........Hypothetical VW Jetta EV

HC+NOx...............................0.105.....................0.133
CO......................................0.19.......................0.025
PM......................................0.001.....................0.013

Calculated emissions from the BMW 335d (arguably the “cleanest” diesel car currently available in the NA market) and its EV equivalent is even less convincing...

Emission.........................2010 335d................Hypothetical 3 Series EV

HC+NOx...............................0.033......................0.128
CO......................................0.07.......................0.025

PM......................................0.00.......................0.013



All emissions are based on a blend of the FTP75/US06/SC03 test cycles (which is why I had to combine HC and NOx).

There are also issues with mercury emissions from coal-fired electric generation plants.

Please correct me if there are any obvious errors in the calculations.
 

wxman

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TDI
Other Diesel
Meant to mention that I agree with commenter dubStrom in that EVs are not *truly* zero emission vehicles due to the "upstream" emissions, even though they achieve a "ZEV" or "Bin 1" emission certification. Similarly, AT-PZEV or Bin 2 certifications for gasoline HEVs do not take upstream VOC emissions into account. Vehicles are responsible for more than just what comes out of the "tailpipe".

Regarding CO2 emissions, EVs would have significantly lower emissions than diesel vehicles running on petro-diesel owing to the superior efficiency of the drive train, even though electric generation itself has a higher "carbon intensity" (CI) than ULSD fuel according to the "Low Carbon Fuel Standard" issued (and adopted?) by CARB last year.

However, "renewable diesel" has the lowest CI of any "fuel" considered by CARB in the LCFS, lower than either electric (based on future "California marginal electricity mix of natural gas and renewable energy sources") or hydrogen by at least a factor of two, even taking the efficiency advantages of the EVs/fuel cells into consideration.

Of course, the issue with the "renewable fuels" is supply, but if that can ever be overcome (algae?), renewable diesel fuel would actually be superior from a CO2 emissions perspective than electricity or hydrogen unless/until virtually all electricity is generated by renewable sources (wind, solar, nuclear, etc), at least according to the LCFS.
 

S_Sanders

Veteran Member
Joined
Jan 7, 2010
Location
Alabaster, AL
TDI
2010 Golf Coupe and 2012 JSW
Nothing so technical here, but I've read and heard a few things that I thought were interesting.

I totally agree with the opinions mentioned about "zero emissions". What a misleading claim that is, but the non-thinking public sucks it in like it's brilliance!

I saw an article in a magazine about the ever-changing and postponed Chevy Volt. It mentioned that the electrical connection required for overnight charging is a 220 Volt 60 Amp power supply! Anyone want to hook that up to your power bill??? Charging via a standard electrical outlet takes "longer".

Last night, I saw a review of the Tesla roadster on BBC's "Top Gear". The car is a converted Lotus. I think it's an Exige. They did track tests comparing it to the gas burning version. The EV was MUCH faster, but the extra battery weight (about 1,000 pounds) caused cornering to suffer significantly. They also mentioned a claimed 200 + mile range, but in their track testing it didn't come anywhere close to that distance. The electric motor also tended to overheat and just shut down when it did. Then they started talking about recharge time. It could be charged overnight with the proper power supply (like the Volt), but they also said that charging it from a standard 220 volt European wall socket would take a few WEEKS... literally. How would that work with a cross-country trip? I haven't seen many hotel rooms with high current connections for charging an EV.

I like the hybrid technologies that allow deceleration energy recapture, but I think EV has a long way to come. GM has some kind of high pressure hydraulic deceleration capture system that they use on their SUV line. That's a neat alternative.

What about Tata Motors' compressed air powered car? Sure it's small, but it's an interesting concept that could be blended with a standard "ICE". Perhaps a deceleration capture system for a TDI?

That's all I've got...

Steve
 

dubStrom

Veteran Member
Joined
Aug 6, 2007
Location
Kansas City Missouri
TDI
2003 A4 Jetta (sold), 2010 JSW (sold), 2013 Passat 6MT traded for 2014 JSW with 6MT-TOTALED in November 2016, 2003 ALH 5MT conversion (sold), wheezing 2015 GSW/DSG and a new 2021 Tacoma Access Cab 4x4 p'up
why not 60+ mpg?

wxman said:
...

If my math is correct (no guarantee there!), that all boils down into the following comparison...
(grams/mile)
Emission.....................2010 Jetta TDI..........Hypothetical VW Jetta EV

HC+NOx...............................0.105.....................0.133
CO......................................0.19.......................0.025
PM......................................0.001.....................0.013

Calculated emissions from the BMW 335d (arguably the “cleanest” diesel car currently available in the NA market) and its EV equivalent is even less convincing...

Emission.........................2010 335d................Hypothetical 3 Series EV

HC+NOx...............................0.033......................0.128
CO......................................0.07.......................0.025

PM......................................0.00.......................0.013
I live in Kansas City, and I make periodic trips across Kansas to the Rockies to visit relatives. The diesel electric format that locomotives use would make more sense to me, but it also means excessively complicated drive train and potentially very expensive skilled technical work when it needs to be fixed (doesn't seem to stop people from buying hybrids!).

Look... VW is considering the Polo for American market. It would come from Pueblo, Mexico and unlikely to be any of the 3 TDI engines offered in Europe. If we got one, it would probably be 1.9 or 2.0 liters. That would be OK with me, but I would seriously look at the 1.2 TSI (gasser), which in all likelihood is all we'll get. It is a beautiful car, but it is an environmental comprimise compared to the BlueMotion. At the moment, both are forged out of that elusive material... unobtainium.

There is also Honda Fit, Toyota Yaris. But these also have more efficient platforms in Europe (that we cannot have). You would think that the regulatory agencies that essentially block these vehicles because of market forces and their outrageously stringent regulations would see the bigger picture and realize that less carbon emission overall is more important than slightly more carbon monoxide or a less than acceptable bumper performance. It is so stupid.
 
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wxman

Veteran Member
Joined
Oct 26, 1999
Location
East TN, USA
TDI
Other Diesel
To be accurate, I would really need to include emissions from the electricity required to refine petroleum products and even the diesel truck emissions to deliver the fuel to gas stations.

Nevertheless, emissions associated with EVs would probably not be remarkably lower given the current configuration of the electric grid, certainly not "zero".
 
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