Ethanol actually costs more

Ethanol actually proves more costly than gasoline

Excerpt:

Ethanol actually proves more costly than gasoline


As your excellent article "Clouds hover in ethanol skies" in Sunday's Tribune points out, ethanol is less expensive per gallon and emits fewer pollutants than gasoline per gallon. This sounds good; however, per mile driven, ethanol actually costs more and is responsible for more greenhouse gases than gasoline.



The SUV referenced in your article gets 14 mpg on gasoline, but only 10 mpg on E85. Thus, it requires 40 percent more E85 than gasoline to drive the same distance.


For example, each 70 miles driven would require 5 gallons of gasoline versus 7 gallons of E85. Using the $2.67 per gallon for gasoline and $2.09 for E85 referenced in your article, the five gallons of gasoline would cost $13.35, whereas the seven gallons of E85 would cost $14.63 (i.e. 9.6 percent more per mile driven).


Since fossil fuels are currently being used in the production of U.S. corn ethanol, the production and use of one gallon of ethanol emits 16.2 pounds of greenhouse gases compared to 20.4 pounds for gasoline, according to the article "Green Dreams" in the October 2007 National Geographic (p.44).


This also sounds good, but for the SUV example above, the five gallons of gasoline would result in 102 pounds of greenhouse gases, whereas the seven gallons of E85 would result in 117.81 pounds of greenhouse gases (i.e. 15.5 percent more per mile driven).


This, along with the other concerns pointed out in your article, makes one wonder if it is a good idea to ramp up the U.S. production of ethanol unless production methods for corn ethanol can be found that significantly reduce greenhouse gas emissions or alternate fuel crops such as switchgrass are used to produce most of the ethanol.


Comment: Bad government policy! See also: E85 Boondoggle of the Day: MO Gov’s Tax Creditfest

HT: Truth about cars