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

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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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DOE tool allows consumers to estimate localized upstream greenhouse gas emissions for EVs and PHEVs

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The US Department of Energy (DOE) has published a Beyond Tailpipe Emissions Calculator that provides estimates of total greenhouse gas (GHG) emissions associated with driving an electric vehicle (EV) or plug-in hybrid electric vehicle (PHEV), including emissions from the production of electricity used to power the vehicle.

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Baltimore Gas and Electric Company to Launch Plug-in Trial; GridPoints Smart Charging Software to Manage Grid Impacts

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Baltimore Gas and Electric Company (BGE), a subsidiary of Constellation Energy, has launched a multiyear plug-in hybrid electric vehicle (PHEV) demonstration project using GridPoint’s smart charging software ( earlier post ). BGE will also evaluate the impact a PHEV fleet has on the company’s carbon footprint.

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CMU researchers find controlled charging of PHEVs can cut cost of integration into electricity system by 54-73%; higher benefits with wind power

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In a new study published in the journal Applied Energy , Carnegie Mellon University (CMU) researchers found that controlled charging of plug-in hybrid electric vehicles (PHEVs) reduces the costs of integrating the vehicles into an electricity system by 54–73% depending on the scenario.

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ORNL demos 20 kW bi-directional wireless charging on UPS PHEV truck; 11" air gap, >92% efficiency

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Researchers at the Department of Energy’s Oak Ridge National Laboratory (ORNL) in late February demonstrated a 20-kilowatt bi-directional wireless charging system installed on a UPS medium-duty, plug-in hybrid electric delivery truck. ORNL’s bidirectional technology is fully compliant with grid power quality standards.

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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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ORNL researcher explores impact of motor/generator and battery pack sizing on medium-duty PHEV; optimization framework

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GHG emissions in PHEV post-transmission configuration as an example of the optimization study output. Broadly, he found that for the PHEV pre-transmission configuration, there is a trade-off between fuel economy and GHG emissions when the motor/generator and battery size increases. Source: A.A. Malikopoulos. Click to enlarge.

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