Energy Security
One rationale for ethanol production in the U.S. is increased energy security, from shifting supply from oil imports to domestic sources. Ethanol production requires significant energy, and current U.S. production derives most of that energy from domestic coal, natural gas and other non-oil sources. Because in 2006, 66% of U.S. oil consumption was imported, compared to a net surplus of coal and just 16% of natural gas (2006 figures), the displacement of oil-based fuels to ethanol produced a net shift from foreign to domestic U.S. energy sources.
According to a 2008 analysis by Iowa State University, the growth in U.S. ethanol fuel production caused retail gasoline prices to be 29–40 cents per gallon lower than would otherwise have been the case. The U.S. consumed 138.2×109 US gal (523×106 m3) of gasoline in 2008, blended with about 9.6×109 US gal (36×106 m3) of ethanol, representing a market share of almost 7% of supply by volume. Given its lower energy content, ethanol fuel displaced about 6.4×109 US gal (24×106 m3) of gasoline, representing 4.6 percent in equivalent energy units.
Read more about this topic: Ethanol Fuel In The United States
Famous quotes containing the words energy and/or security:
“While the State becomes inflated and hypertrophied in order to obtain a firm enough grip upon individuals, but without succeeding, the latter, without mutual relationships, tumble over one another like so many liquid molecules, encountering no central energy to retain, fix and organize them.”
—Emile Durkheim (1858–1917)
“Thanks to recent trends in the theory of knowledge, history is now better aware of its own worth and unassailability than it formerly was. It is precisely in its inexact character, in the fact that it can never be normative and does not have to be, that its security lies.”
—Johan Huizinga (1872–1945)