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View Full Version : Ethanol Makes Gasoline Costlier, Dirtier



johnnymk
02-01-2007, 05:30 AM
Although this topic was discussed recently, this article summarizes whar Bush believes is America's silver bullet

http://cato.org/pub_display.php?pub_id=7308

In his State of the Union address, President Bush spoke a lot about energy independence and alternative energy sources such as ethanol. According to the president, ethanol is the magical elixir that will solve virtually every economic, environmental, and foreign policy problem on the horizon. In reality, it's enormously expensive and wasteful.

Untruths and misconceptions about ethanol include:

Ethanol will lead to energy independence. If all the corn produced in America last year were dedicated to ethanol production (14.3 percent of it was), U.S. gasoline consumption would drop by 12 percent. For corn ethanol to completely displace gasoline consumption in this country, we would need to appropriate all U.S. cropland, turn it completely over to corn-ethanol production, and then find 20 percent more land for cultivation on top of that.

The U.S. Energy Information Administration believes that the practical limit for domestic ethanol production is about 700,000 barrels per day, a figure they don't think is realistic until 2030. That translates to about 6 percent of the U.S. transportation fuels market in 2030.

Ethanol is economically competitive now. According to a 2005 report issued by the Agriculture Department, corn ethanol costs an average of $2.53 to produce, or several times what it costs to produce a gallon of gasoline. Without the subsidies, costs would be higher still. A study last fall from the International Institute for Sustainable Development found that ethanol subsidies amount to $1.05-$1.38 per gallon, or 42 percent to 55 percent of ethanol's wholesale market price.

Ethanol reduces gasoline prices. If you lived in California and other areas that used reformulated gasoline last summer – that's the environmentally "clean" gasoline required for areas with air pollution problems, and that's where most of that ethanol went – you might have paid up to 60 cents a gallon more for gasoline than you would have otherwise. That's because the federal government required oil refineries to use 4 billion gallons of ethanol in 2006 regardless of price, and gasoline pump prices last summer reflected the fact that ethanol was twice as expensive as wholesale conventional gasoline.

Ethanol is a renewable fuel. According to a group of academics from UC Berkeley who published in Science magazine last year, 5 percent to 26 percent of the energy content of ethanol is "renewable." The balance of ethanol's energy actually comes from the staggering amount of coal, natural gas and nuclear power necessary to produce corn and process it into ethanol.

Ethanol reduces air pollution. A review of the literature by Australian academic Robert Niven found that, when evaporative emissions are taken into account, E10 (fuel that's 10 percent ethanol and 90 percent gasoline, the standard mix) increases emissions of total hydrocarbons, nonmethane organic compounds, and air toxics compared to conventional gasoline. The result is greater concentrations of photochemical smog and toxic compounds.

Ethanol reduces greenhouse gas emissions. At best, E10 reduces greenhouse gas emissions by from zero to 5 percent; pure ethanol by 12 percent. The International Energy Agency, however, estimates that it costs about $250 to reduce a ton of greenhouse gases this way, or more than 10 times what Yale economist William Nordhaus thinks is economically sensible given the economics of climate change. Ethanol as an anti-warming policy is what academics refer to as "crazy talk."

Ethanol subsidies are necessary to "level the playing field." Petroleum subsidies are something less than $1 billion a year – six to eight times less than ethanol subsidies – and work out to about 0.3 cents per gallon.

Switchgrass (aka, "cellulosic ethanol") will set us free. Guy Caruso, the head of the EIA, noted in a speech last December that the capital costs associated with cellulosic ethanol production were five times greater than those associated with conventional corn ethanol production. Estimates like that are a bit soft, however, because there is no cellulosic ethanol industry in existence at present, so data is hard to come by. Betting the farm on an industry that doesn't yet exist to produce a product that is known to be staggeringly expensive isn't the best use of tax dollars.

If ethanol has commercial merit, it doesn't need the subsidy. If it doesn't, no amount of subsidy will bestow it. And that's the truth.

ShawnLee
02-01-2007, 07:21 AM
It's well-known that ethanol isn't a silver bullet. That there isn't enough bio-mass on earth to wean the world off oil has been known for ages. So where does that all leave us? I still don't know either.

Truth be told, ethanol is a step in the right direction because it moves towards energy independence. But overall? I agree with the article.

Less subsidies, more free-market.

Prngr44
02-01-2007, 07:24 AM
I use E85 in my truck whenever I can, but it just isn't readily available in the St. Louis area. I have to consciously think "Ok, I'm going to be near a station that has E85 so I should get some."

While the science backing it right now is very new and somewhat energy inefficient, I think it's a step in the right direction. While corn based energy production just isn't going to be the way of the future, the cellulosic method has potential. I'm all for hybrids/electric/alternative energies if it helps to reduce our guzzling need for oil.

Chgoman
02-01-2007, 09:00 AM
I used to have a truck that could use E85, but I never did as it costs more, gives worse gas mileage and over time is corrosive to your engine. Not a winning mix in my book. The long term solution is going to be different, but short term as economies of scale on producing hybrid engines kick in and the premium comes down, that will make a significant difference. Once they are only charging a $1K premium vs. the current $3K+ it will make financial sense and many more people will choose this option.

YellowCoffee
02-01-2007, 09:38 AM
I used to have a truck that could use E85, but I never did as it costs more, gives worse gas mileage and over time is corrosive to your engine. Not a winning mix in my book. The long term solution is going to be different, but short term as economies of scale on producing hybrid engines kick in and the premium comes down, that will make a significant difference. Once they are only charging a $1K premium vs. the current $3K+ it will make financial sense and many more people will choose this option.

I think lowering that premium will be very difficult as it is. It's ridiculously expensive to manufacture these hybrid engines. I've heard from a couple friends that the cost is so high that the government has to subsidize much of the cost just to make them cost-efficient for the general consumer. In my opinion, hybrids still are not cost-efficient. I really don't know why they make such vehicles as the Lexus G450h. You'd think if somebody wanted a hybrid car, they wouldn't go for the power-luxury. And if somebody wanted a power-luxury car, they wouldn't want a hybrid. :shrug:

bachviet
02-01-2007, 11:37 AM
I used to have a truck that could use E85, but I never did as it costs more, gives worse gas mileage and over time is corrosive to your engine. Not a winning mix in my book. The long term solution is going to be different, but short term as economies of scale on producing hybrid engines kick in and the premium comes down, that will make a significant difference. Once they are only charging a $1K premium vs. the current $3K+ it will make financial sense and many more people will choose this option.
Manufacturers already loses money as it is right now since it costs $5K extra to make a hybrid and the mark up is only around $3K. I don't think any car manufacturer wants to lose more money.

InfiniteNothing
02-02-2007, 08:14 AM
It's an emerging technology. Things will get better as the technology matures. The most promising change is that bacterial ethanol processes will derive much more ethanol per pound of crop.

guiseppewv
02-02-2007, 12:08 PM
:stupid:

Like any new tech it takes time to mature the process. :shrug:
If ethanol production using enzymes is successful then ethanol will become a much bigger player as a substitue for oil. As far as I am concerned, if it was a wash compared to gasoline in the harm/benefit to our environment and it cost $1 more per gallon then I would buy it just to end our dependance on oil.

IN - are you referring to ethanol production using enzymes when you say "bacterial"?

InfiniteNothing
02-02-2007, 12:49 PM
Yes

Once pretreated, enzymes are employed to convert the cellulosic biomass to fermentable sugars. The final step involves microbial fermentation yielding ethanol and carbon dioxide
With cellulosic ethanol, we don't have to just rely corn and well eatable crops, we can grow switchgrass which can grow in much harsher less fertilized conditions.

I'm also thinking of biodiesel that can be made from algae. Algae is pretty much solar panels that nature has been engineering for billions of years. Many many times more efficient and flexible than our technology. Turning algae into diesel turns the stored solar energy into something very usable by our society.

Houdini
02-04-2007, 10:09 PM
Yeah, it's easy to get bacteria to make ethanol. This can be seen when one drinks a beer. :)

I'm still in favor of heavy research into more solar cell technology (hey, that great big ball of hot fusion gas is showering the entire planet with tons of energy daily...we're only using it in minimal ways, like windmills.) Also, nuclear sounds great to me. But for now, even if we go electric, we're still going to be heavily dependent on coal, etc. Not that coal powered plants really pollute that much (they actually scrub the air a LOT,) but as mentioned, fossils aren't inexaustible.

H <---waiting for his tidemill prototype to be ready for testing. Also waiting for Mr. Fusion. :)

guiseppewv
02-06-2007, 12:03 PM
I agree that solar needs to become a bigger part of the equation, along with wind and tidal. I think nukelar :P is going to be on the increase in the short term but in the long term I think that it's role should shrink.

brainsmile
02-06-2007, 03:55 PM
costlier is not a word

Markel
02-06-2007, 07:51 PM
costlier is not a word
Ahem! (http://dictionary.reference.com/search?q=costlier)