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Carnegie Mellon academics: Plug-in hybrids better than coal-to-liquid road fuel
8th June 2007
Researchers from Carnegie Mellon University’s Tepper School of Business have warned that failure to use carbon capture and sequestration would actually increase emissions from coal-to-liquid transport fuel projects which a U.S. Congress Energy and Commerce Committee is proposing to subsidise.
"A major program to subsidize coal-to-liquids makes no sense, since the goals of energy independence and reducing greenhouse gas emissions can be achieved at lower cost through plug-in hybrid vehicles charged with electricity from reduced carbon sources," according to an Issue Brief by the Carnegie Mellon Electricity Industry Center.
It says generating electricity from coal with carbon capture and sequestration and replacing the fleet with plug-in hybrid vehicles could enhance energy security by reducing 85% of gasoline use and reduce greenhouse gas emissions from vehicle travel by 70%.
Even the most carbon-intensive scenario using plug-in hybrids has substantially less greenhouse gas emissions than the best possible coal-to-liquids case. Nearly three-fourths of the U.S.’ existing light-duty vehicle fleet could be accommodated as plug-ins without requiring additional power plants through off-peak charging.
- A recent study by the Propane Education & Research Council (PERC) in the U.S. found if a select 10% of the U.S. commercial fleet vehicle population switched to propane, the country could displace nearly 1 billion gallons of gasoline annually by 2017.
The study conducted by Energy and Environmental Analysis, Inc. was commissioned by PERC and examined the fuel usage of the 86 million trucks on the roads in the U.S. It determined that if 6 unit+ fleet owners operating within a 100-mile radius switched 4.5 million of their vehicles to propane, more than 830 million gallons of gasoline could be displaced by 2017.
(http://business.tepper.cmu.edu/, PERC)
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