Strategic Issues Facing Transportation, Volume 5: Preparing State Transportation Agencies for an Uncertain Energy Future (2014) / Chapter Skim
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Pages 125-135
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125 Natural gas and liquid petroleum gas have a long history of use as transportation fuels both domestically and internationally. Natural gas is a fossil fuel extracted from onshore or offshore wells, sometimes in conjunction with crude oil.
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126 and Eurasia. As of 2011, proven reserves in the United States stood at 8.5 tcm, just over 4% of the world total (BP 2012)
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127 gas as a fuel for transportation, it is thus important to consider the competition from other potential applications of natural gas as well (NRC 2013)
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128 separate fueling systems, enabling the vehicle to operate on either fuel (EERE 2012f)
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130 mum efficiency, and maintain durability (M.
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131 B.4.2 Factors Affecting Market Prospects The remainder of this section discusses some of the main obstacles that CNG and LPG will need to overcome in order to achieve significantly greater market share in the lightduty fleet. Availability of refueling stations.
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132 most frequently requested, high-sales fleet vehicles. This in turn limits the variety of vehicle models available to the public (WGA 2008)
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133 Unresolved environmental concerns about fracking. Technological and economical improvements in horizontal drilling with hydraulic fracturing to further expand the economically recoverable supply of natural gas could reinforce the cost advantages of natural gas over petroleum.
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135 Vidas, H
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