cato.org on ethanol

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alan

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I cannot say who, which side is correct, however the following from www.cato.org seems worth reading and thinking on.

January 29, 2007


Ethanol Makes Gasoline Costlier, Dirtier
by Jerry Taylor and Peter Van Doren

Jerry Taylor and Peter Van Doren are senior fellows. Peter Van Doren is also editor of Regulation magazine.


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.


This article appeared in the Chicago Sun-Times on January 27, 2007.
 
Why they are still pushing a fuel that requires engine modifications, contains significantly fewer BTU's per gallon than dino, and is used to run an inherintly inefficient engine is beyond me.

Biodiesel runs in stock engines, is much kinder on components than ULSD, and runs in engines that are more efficient than traditional spark ignited jobs. Whats more, it's allready prooving commercially viable. A local station just started selling B20 thanks to an upstart local plant. Runs great and the price is the same as regular #2 fuel. Algae and Biodiesel is the way to go IMO
 
The question you need to answer is this: Is alcohol a fuel or an energy vessel?

With a legitimate energy source (a.k.a. "fuel"), you get more energy out of it than what you expend to obtain it. With this in mind, there are only a handful of legitimate energy sources. These include oil, gas, coal, hydroelectric, and nuclear. Only legitimate energy sources can be considered for use in large-scale power distribution systems.

An energy source that produces less energy when compared to the amount of energy expended to obtain it is not a fuel; it is an energy vessel. One obvious example is an electrochemical battery; a lot more energy is expended making a battery that what you can get out of it. In general, energy vessels can be very useful for powering portable or remotely-located devices, but they are not a viable option for large-scale power distribution.

There is some debate on whether certain energy sources are fuels or energy vessels. Examples include solar, wind, alcohol, and hydrogen. Careful and thorough analysis is required to make the determination. Take alcohol, for example... if a farmer's tractor uses 50 gallons of diesel fuel to harvest corn from a field, and the corn produces 20 gallons of alcohol, can we really say alcohol is a fuel? Nope - it's an energy vessel. Just like a battery. Furthermore, it would be a lie to say the alcohol is "clean burning," since a lot of diesel fuel was burned to pull the corn. What about solar? Despite the fact there are studies that "prove" a PV array generates net power after 4 or 5 years, I think they neglect a lot of variables. In fact, I strongly suspect that no PV array has ever generated one net watt. This may change, however, if PV arrays become more efficient.

One of the best judges of whether or not an energy source is a fuel or energy vessel is the free market. If commercial companies are selling an energy source for use in large-scale power distribution systems, and there is no government subsidy, then it's virtually guaranteed the energy source is a fuel and not an energy vessel.
 
Ethanol does not = Corn fuel. And moreover there are forms of ethanol that way out preform corn based ethanol. Grass and others. BioDeisel, Ethanol solutions are a lot less expensive to the infrastructure than completely Retooling the Automotive Manufacturing Industry.
What I find frustrating is that the diesel was designed to run on Vegetable based oils in the first place. The Getty's and Rockafellers sold the Gov't and the American People up the river for their millions. Their decendants are sitting on their Billions,out of direct contact with the Oil Industry and we are left in this mess. Talk about Carpetbagging, Robber Barons, this is the very definition.
 
Yep all the folks who claim hydrogen is a clean burning energy source are also mistaken given current technology. Hydrogen is an energy storage method and takes more energy to produce than it yields when burned.

You would be better off burning the coal it takes to generate the electricity to make the hydrogen than burning the hydrogen.
 
One of the best judges of whether or not an energy source is a fuel or energy vessel is the free market.
Excellent point...then the government gets involved and screws up that philosophy through taxation and regulation.

Is alcohol a fuel or an energy vessel?
A popular method for this test is Energy Returned on Energy Invested (ERoEI). I don't think you will ever find a fuel or energy source that has a decent ERoEI utilizing our current technology.

Hydrogen is an energy storage method and takes more energy to produce than it yields when burned.
There are many different ways to create hydrogen. One way is electrolysis. This method is 70% efficient. Not bad in my opinion. The major problem with hydrogen is transportation and storage.

Yep all the folks who claim hydrogen is a clean burning energy source are also mistaken given current technology.
It is cleaner burning than oil or coal.

We don't have the technology to solve our current oil dependency problem. The answer is renewable resources, but we are to inefficient to use renewable resources, so we have to rely on nonrenewable resources. The high oil prices had everything to do with taxes and greed, not with depletion.
 
Yep all the folks who claim hydrogen is a clean burning energy source are also mistaken given current technology. Hydrogen is an energy storage method and takes more energy to produce than it yields when burned.
I love gasoline. It's very cheap and has an extremely high energy density. And for a given volume, gasoline contains more hydrogen than liquid hydrogen. :)

So when anyone talks about "cars running on hydrogen," I tell them my car already runs on hydrogen. ;)

[Hydrogen] is cleaner burning than oil or coal.
Um, not when you take into account all the oil/coal that must be burned to process the hydrogen.

One way is electrolysis. This method is 70% efficient. Not bad in my opinion.
That's horrible, as there is a net loss in energy. Not so with gasoline... with gasoline, you expend less energy making it than what you get out of it. In other words, the ERoEI of gasoline is over 100%.
 
I tell them my car already runs on hydrogen.
Which is incorrect IIR my organic chem correctly. The energy in gasoline comes from the breaking of the covalent bonds between the carbon atoms that form the backbone or structure of the various hydrocarbon chains of gasoline.

Not so with gasoline... with gasoline, you expend less energy making it than what you get out of it. In other words, the ERoEI of gasoline is over 100%.
Hmmmm...citation?
 
Which is incorrect IIR my organic chem correctly. The energy in gasoline comes from the breaking of the covalent bonds between the carbon atoms that form the backbone or structure of the various hydrocarbon chains of gasoline.
You may be correct about the chemical bonds. But it is a fact that, for a given volume, gasoline contains more hydrogen than liquid hydrogen.

Hmmmm...citation?
It takes 1 gallon of old gas to make 4 gallons of new gas. If you think about it, it must be this way, else the system would collapse.

If you want to learn more about energy, gasoline, ethanol, hydrogen, etc. I highly recommend reading some columns by Don Lancaster. Here is a list of must-read articles. As just one example, he says the following in this column:

For instance, one system in which you'll pour one gallon of gasoline in the top and get four out the bottom is called "being an oil company". Or a system where you input one kilowatt hour of electrity and output two is called "being an electric utility".

Read these columns then get back with me. :)
 
You may be correct about the chemical bonds. But it is a fact that, for a given volume, gasoline contains more hydrogen than liquid hydrogen.
Which is not relevant to the discussion, since you are not by intent combining the hydrogen in the gasoline to extract energy, but breaking down the carbon-carbon bonds to extract THEIR energy. Hydrogen is just along for the ride.

OK, I reviewed your citation and I can see where the author makes the statement about "one in for four out", but where does he get his data?
 
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