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Study finds GHG emissions from corn ethanol now 46% lower than gasoline

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A new study by a team from Environmental Health & Engineering (EH&E) has found that greenhouse gas emissions from corn ethanol are 46% lower than those from gasoline—a decrease in emissions from the estimated 39% done by previous modeling. gCO 2 e/MJ) which is 46% lower than the average carbon intensity for neat gasoline.

Gasoline 493
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ICCT LCA study finds only battery and hydrogen fuel-cell EVs have potential to be very low-GHG passenger vehicle pathways

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In addition to its regional and temporal scope, this study is distinct from earlier LCA literature in four key aspects: This study considers the lifetime average carbon intensity of the fuel and electricity mixes, including biofuels and biogas.

Hydrogen 418
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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.

PHEV 284
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Study suggests current levels of methane leakage would result in numerous decades of more rapid climate change from a shift to natural gas vehicles

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Technology warming potential (TWP) for three sets of natural gas fuel-switching scenarios. (A) A) CNG light-duty cars vs. gasoline cars; (B) CNG heavy-duty vehicles vs. diesel vehicles; and (C) combined-cycle natural gas plants vs. supercritical coal plants using low-CH 4 coal. Source: Alvarez et al. Click to enlarge.

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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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EPA, DOT Propose New Fuel Economy Labels; Addressing GHG Emissions, Fuel Consumption and Advanced Technology Vehicles

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From left to right: EV, PHEV, gasoline/diesel, gasoline/diesel. One label design prominently features a letter grade (ranging from A+ to D) to communicate the vehicle’s overall fuel economy and greenhouse gas emissions performance. A sample of the second proposed label for an extended range electric vehicle. Source: EPA.

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Analysis finds annual running cost of EVs less than ICE; but with purchase price factored in, it flips

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Self Financial, a fintech company, has compared the running costs of electric and non-electric vehicles in each state. Across the US the average annual cost of running an electric vehicle is $2,721.96, while gasoline vehicles cost an average of $3,355.90 per year to run—a difference of $633.94

Purchase 321