A gas station north of Richmond, Kan. on US 59 advertises prices for E10 gasoline, regular unleaded and diesel fuel. The national ethanol advocacy firm Growth Energy and local ethanol groups are pushing for an increase of the blends of etanol allowed in regular fuel to 15 and possibly 20 percent.
Corn growers want more ethanol, too.
But Sharon Billings, professor of global change biology and biogeochemistry at the University of Kansas, will lead a study this summer to find out how increased land usage for agriculture, and uses like fuel, affect the carbon balance.
"Land is not free," Billings says. "If we use a greater amount of land for fuel then there are obvious costs."
"If those decisions, driven by economics, change land from what is native to agriculture, then for sure you are going to be generating greenhouse gases."
Billings is one of many wondering out loud what costs increased ethanol usage has, as ethanol advocates fight this latest battle.
Ethanol's newest push
While gasoline is limited to a ten percent ethanol blend right now, Growth Energy, a national ethanol advocacy firm, wants to increase the allowable amount of ethanol to blend up to 15 percent. There are vehicles labeled as Flexible Fuel Vehicles that can take up to 85 percent ethanol, but ethanol processors may hit capacity if the amount allowed in regular, everyday gasoline is not increased.
A March letter from the co-chairs of Growth Energy to Environmental Protection Agency administrator Lisa Jackson said that if the 10-percent-only barrier was not removed, the ethanol market could be saturated within months, because more ethanol would hit its allowed capacity.
Mary Jane Stankiewicz, Senior Vice President of Government Affairs of the Topeka-based Kansas Association of Ethanol Processors says that ethanol made from homegrown corn is good for the economy and creates jobs here.
"It is one more step in the fight to lessen our dependence on foreign oil," said Stankiewicz.
The EPA is considering Growth Energy's increased ethanol request.
Kansas Legislature agrees
Separately, the Kansas Legislature passed a similar resolution earlier this month urging the EPA to consider a maximum for ethanol in regular gasoline up to 20 percent. And even though Kansas doesn't have a mandate to make a percentage of the fuel supply be ethanol, this joint resolution passed 39-0 in the Senate and 110-12 in the House. The resolution was introduced by more than 30 state senators, including Sen. Marci Francisco (D-Lawrence.)
Stankiewicz, whose ethanol processors association drafted the resolution in the resolution, says that while this resolution is not binding, it tells the EPA where Kansans stand on increasing ethanol.
"It sends a message to EPA that the Kansas Legislature believes in sound science," Stankiewicz said. "The resolution is asking the EPA to be open about new science and new technology."
Engine consequences
But more ethanol in regular fuel could have major implications ranging from land and water use to engine performance.
Bob Rodriguez, manager of special testing programs for the National Institute for Automotive Excellence of Leesburg, Va., an organization that certifies automotive service technicians brings up many questions about the effect of more ethanol.
Rodriguez brings up ethanol's role as an octane enhancer and how a water-absorbent ethanol may separate from gasoline if too much water is introduced into the mix, sink to the bottom of a fuel tank and let lowered-octane gasoline pass through, creating possible engine problems.
Also Rodriguez asks if boats with fiberglass gas tanks, smaller engines like chainsaws, and older vehicles are being taken into consideration.
"What is the age of the vehicle?" Rodriguez said, "Older vehicles could have seals, gaskets and elastomers which cannot tolerate alcohol (ethanol.)"
"Think of the potential for fuel leaks, and worse."
Chris Depcik, assistant professor of mechanical engineering at the University of Kansas, says that he thinks it's always an issue to introduce a different fuel from what the engine was designed to produce.
Depcik is setting up a laboratory to study the effects on an engine conversion to accept an 85 percent ethanol fuel mix.
"We are also studying biodiesel, green diesel and green jet fuel," Depcik said.
Sue Schulte of the Garnett-based Kansas Corn Growers Association says that ethanol blends easily up to 15 to 20 percent in most vehicles.
"People were excited about domestic fuel production in general when fuel prices were high," Schulte said. "What I keep reminding people is that oil prices will come up."
In my personal opinion," Rodriguez said, "Without further study of the technical issues alone, universally blending over 10% alcohol in gasoline is a risky move.
View Kansas Ethanol Plants in a larger map
East Kansas Agri-Energy, of Garnett, is the closest ethanol plant to Lawrence, and the only ethanol plant in eastern Kansas. Source: Renewable Fuels Association
Federally subsidized corn-based ethanol could be in a potential battle with the food supply and land and water usage, according to Carey Maynard-Moody, vice chair of the recently completed Lawrence Climate Protection Task Force. She is also chair of the Wakarusa Group, a Lawrence-based environmental group.
The Climate Protection Task Force did not recommend increased ethanol usage in its study of public transportation for the city; rather it focused on Intelligent Transportation Systems like smarter traffic signals. Also, the group considered buses that used Consolidated Natural Gas, but found it to be unfeasible for now.
"Alternative fuels are best when they're not from a food source," Maynard-Moody said. "To take land that was used to growth fuel is questionable . . .Corn should not be grown in dry lands."
Billings agrees.
"To the extent that the switch influences land use, we need to account for that influence in greenhouse gas in the atmosphere," Billings said.
Stankiewicz said that ethanol processors that have built in Kansas have considered ecological effects. Water rights acquired for ethanol processing plants are using 40 percent less water than the farmers that used the lands before.
"In Kansas, under our laws, we're not using more than we previously used," said Stankiewicz. "We're using less land than we used a number of years ago. We've improved bushels per acre with genetics and technology."

