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Growth in biomass could put US on road to energy independence

Relief from soaring prices at the gas pump could come in the form of corncobs, cornstalks, switchgrass and other types of biomass, according to a joint feasibility study for the departments of Agriculture and Energy.

The recently completed Oak Ridge National Laboratory report outlines a national strategy in which 1 billion dry tons of biomass ?any organic matter that is available on a renewable or recurring basis ?would displace 30 percent of the nation's petroleum consumption for transportation. Supplying more than 3 percent of the nation's energy, biomass already has surpassed hydropower as the largest domestic source of renewable energy, and researchers believe much potential remains.

"Our report answers several key questions," said Bob Perlack, a member of ORNL's Environmental Sciences Division and a co-author of the report. "We wanted to know how large a role biomass could play, whether the United States has the land resources and whether such a plan would be economically viable."

Looking at just forestland and agricultural land, the two largest potential biomass sources, the study found potential exceeding 1.3 billion dry tons per year. That amount is enough to produce biofuels to meet more than one-third of the current demand for transportation fuels, according to the report.

Such an amount, which would represent a six-fold increase in production from the amount of biomass produced today, could be achieved with only relatively modest changes in land use and agricultural and forestry practices.

"One of the main points of the report is that the United States can produce nearly 1 billion dry tons of biomass annually from agricultural lands and still continue to meet food, feed and export demands," said Robin Graham, leader for Ecosystem and Plant Sciences in ORNL's Environmental Sciences Division.

The benefits of an increased focus on biomass include increased energy security as the U.S. would become less dependent
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Source:DOE/Oak Ridge National Laboratory


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