US does not have infrastructure to consume more ethanol, study finds

January 4, 2011

…a former Purdue graduate student, used U.S. Department of Energy and Environmental Protection Agency data to determine that the United States is at the “blending wall,” the saturation point for ethanol use. Without new technology or a significant increase in infrastructure, Tyner predicts that the country will not be able to consume more ethanol than is being currently produced.


The federal Renewable Fuel Standard requires an increase of renewable fuel production to 36 billion gallons per year by 2022. About 13 billion gallons of renewable fuel was required for 2010, the same amount Tyner predicts is the threshold for U.S. infrastructure and consumption ability.

“You can’t get there with ethanol,” said Tyner, whose findings were published in the December issue of the American Journal of Agricultural Economics.

Tyner said there simply aren’t enough flex-fuel vehicles, which use an 85 percent ethanol blend, or E85 stations to distribute more biofuels. According to EPA estimates, flex-fuel vehicles make up 7.3 million of the 240 million vehicles on the nation’s roads. Of those, about 3 million of flex-fuel vehicle owners aren’t even aware they can use E85 fuel.

There are only about 2,000 E85 fuel pumps in the United States, and it took more than 20 years to install them.

“Even if you could produce a whole bunch of E85, there is no way to distribute it,” Tyner said. “We would need to install about 2,000 pumps per year through 2022 to do it. You’re not going to go from 100 per year to 2,000 per year overnight. It’s just not going to happen.”

And even if the fuel could be distributed, E85 would have to be substantially cheaper than gasoline to entice consumers to use it because E85 gets lower mileage, Tyner said.

If gasoline were $3 per gallon, E85 would have to be $2.34 per gallon to break even on mileage.

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