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Study finds that increased vehicle travel and decreased occupancy have undercut the impact of improving fuel economy over last 40 years

Green Car Congress

From 1970 to 2010, vehicle distance travelled in the US increased by 155% (from 1.674 trillion km to 4.260 trillion km); however, because vehicle load (i.e., Sivak found that while the vehicle fuel economy of the entire light-duty fleet improved by 40% (from 13 mpg US to 21.6 occupants carried) decreased by 27% (from 1.9

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IEA technology and policy reports outline paths to halving fuel used for combustion-engined road transport in less than 40 years

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IEA fuel economy readiness index status, 2010. New propulsion systems requiring new fuels, such as plug-in electric vehicle systems and fuel cell systems, are beyond the scope of this technology roadmap and are treated in separate roadmaps. Average fuel economy and new vehicles registrations, 2005 and 2008.

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Congressional Budget Office estimates US federal policies promoting EVs and other fuel-efficient vehicles will cost $7.5B through 2019; little or no impact on gasoline use and GHG in the short term

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In a new report examining the effect of federal tax credits on the plug-in market, the CBO finds that tax credits for buying electric vehicles—which account for about one-fourth of the policy cost—are likely to have the greatest impact on vehicle sales. That effect may be large. Cultivate local PEV clusters.

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New Zealand simplifies Road User Charges system, extends exemption for light electric motor vehicles from 2013 to 2020

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Since some 36% of diesel is used off-road, such as on farms, by manufacturing, industrial and commercial ventures, and boats, a fuel tax for road use would impose an unfair burden onto these sectors, the government says.). In New Zealand, diesel and electric-powered vehicles pay for their road use through road user charges.

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Study Finds That Implementation of a Portfolio of Transportation Strategies Will Be Required for Significant Reductions in GHG from Transportation Sector; Pricing Strategies Have the Largest Potential

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Projected cumulative greenhouse gas reductions from 2010-2050 by strategy category under maximum deployment scenario. Strong economy-wide pricing measures (such as a $5.00 per gallon fuel tax by 2050) could result in an additional reduction of 28% in GHG emissions. Data: Moving Cooler. Click to enlarge. percent to 0.5

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MIT Energy Initiative report on transforming the US transportation system by 2050 to address climate challenges

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Achieving our overall goal—reducing fleet fuel and energy consumption and GHGs by three-quarters or more—will be extremely challenging. Average on-road fuel consumptions (tank to wheels) of the different propulsion systems in an average light-duty vehicle: 2010, 2030, and 2050.

MIT 150