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CMU county-level study shows plug-ins have larger or smaller lifecycle GHG than gasoline ICE depending on regional factors

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A US-wide county-level study comparing lifecycle greenhouse gas (GHG) emissions from several light-duty passenger gasoline and plug-in electric vehicles (PEVs) has found that PEVs can have larger or smaller carbon footprints than gasoline vehicles depending on regional factors and the specific vehicle models being compared.

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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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CMU study explores optimizing PHEV design and allocation to minimize life cycle cost, petroleum consumption, and GHG emissions

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Researchers at Carnegie Mellon University (CMU) constructed an optimization model to determine the optimal vehicle design and allocation of conventional, hybrid, and plug-in hybrid vehicles to drivers in order to minimize life cycle cost, petroleum consumption, and GHG emissions. gal gasoline, $0.11/kW gal gasoline, $0.11/kW

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Third Phase of SDGE In-Use Study Shows PHEVs Excel on Fuel Economy and GHG Emissions Reductions Compared to Gasoline ICE and Hybrid-Electric Vehicles

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One of SDG&E’s converted PHEVs. The third phase of a SDG&E multi-year in-use study on plug-in hybrid electric vehicles showed that plug-in hybrids offer significant improvements in gas mileage and reductions in emissions when compared with standard hybrid-electric and gasoline internal combustion engine (ICE) vehicles.

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Univ of Toronto study details impacts of interaction between driving patterns and electricity generation for WTW energy use and GHG emissions for PHEVs

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WTW GHG emissions of vehicles across driving patterns and PHEV charging scenarios. Solid portions represent GHG emissions associated with gasoline propulsion. Patterned portions represent GHG emissions associated with electric propulsion. Solid left bar = hydro electricity scenario.) Credit: ACS, Raykin et al.

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Researchers suggest subsidies and policies targeting plug-ins with small battery packs would produce more benefits at lower cost

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Michalek, an associate professor at Carnegie Mellon University and his colleagues Mikhail Chester, an assistant professor at Arizona State University; and Constantine Samaras, an engineer at the RAND Corporation. The Chevrolet Volt with a 16 kWh pack and ~35 mile electric range receives a $7,500 credit. Earlier post.).

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DOE AVTA Completes 1M Miles of Plug-in Hybrid Electric Vehicle Testing

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PHEVs and demonstration locations. The US Department of Energy (DOE), through its Advanced Vehicle Testing Activity ( AVTA ) at Idaho National Laboratory (INL), has completed 1 million miles of plug-in hybrid electric vehicle (PHEV) testing. PHEV Models Under AVTA Testing. Hymotion Prius A123Systems. Source: INL.

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