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ORNL study finds best current use of natural gas for cars is efficient production of electricity for EVs

Green Car Congress

However, they also noted, high PTW efficiencies and the moderate fuel economies of current compressed natural gas vehicles (CNGVs) make them a viable option as well. If CNG were to be eventually used in hybrids, the advantage of the electric generation/EV option shrinks. Their open access paper is published in the journal Energy.

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Volkswagen to debut XL1 PHEV prototype at Qatar Motor Show; fuel consumption of 0.9 L/100 km (261 mpg US)

Green Car Congress

The XL1 prototype PHEV. Volkswagen is staging the world debut of its XL1 diesel plug-in hybrid electric vehicle (PHEV) prototype at the Qatar Motor Show this week. L/100 km (261 mpg US), according to VW. The XL1 prototype has an all-electric range of up to 35 kilometers (22 miles); total range is approx.

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DOT, EPA unveil joint proposal for fuel economy and greenhouse gas emission standards: 49.6 mpg CAFE, 163 g/mile GHG in 2025; flexibilities and incentives

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The US Environmental Protection Agency (EPA) and the US Department of Transportation (DOT) formally unveiled their joint proposal to set stronger fuel economy and greenhouse gas pollution standards for Model Year 2017-2025 passenger cars and light trucks. mpg US (5.87 L/100km) in model year 2021, and 49.6 L/100km) in model year 2025.

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EPA Trends on EVs and PHEVs; beginning of a “measurable and meaningful impact” on new vehicle fuel economy and emissions

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In the analysis, EPA uses overall fuel economy in mpg equivalent (mpge) and tailpipe CO 2 emission values. Including net upstream CO 2 emissions for vehicles operating on electricity would reduce the positive impact of alternative fuel vehicles on fleet-wide CO 2 emissions, the agency noted. —EPA 2014 Trends report.

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XL launches PHEV Ford F-250; 50% improvement in fuel economy

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XL unveiled its plug-in hybrid electric Ford Super Duty F-250 pickup truck ( earlier post ) at the NTEA Work Truck Show in Indianapolis. These numbers are consistent with what the PHEV F-150 has been proven to achieve at EPA-certified testing facilities.

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Study finds households manage charging of PHEVs without help from online tools

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Households with plug-in hybrid vehicles (PHEVs) and smart meters actively managed how, when and where they charged their cars based on electricity rates but rarely took advantage of online feedback, according to a two-year study by a team at the University of Colorado Boulder’s Renewable and Sustainable Energy Institute ( RASEI ).

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Study finds PHEVs will reduce net emissions of CO2 and NOx; upward pressure on SO2

Green Car Congress

Net emissions resulting from the use of plug-in hybrid electric vehicles (PHEVs) depend on the efficiency of the conventional vehicle fleet; PHEV CD (all-electric, charge-depleting mode) efficiency; charging strategy; battery pack capacity; driving patterns; and generator mix used for charging. Scott Peterson, J.

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