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Study estimates fuel economy improvements to US light-duty vehicles from 1975–2018 saved 2T gallons of fuel, 17B tons of CO2

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A team from the University of Tennessee and the National Renewable Energy Laboratory (NREL) has the fuel savings due to fuel economy improvements over the past 43 years amount to approximately two trillion gallons of gasoline. Fleet-wide fuel economy gains produced large fuel savings. Greene et al.

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PNNL team develops onboard fuel separation technology to enable octane-on-demand for improved fuel economy

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Researchers at the US Department of Energy’s Pacific Northwest National Laboratory (PNNL) have developed an onboard separation system that could support increased fuel economy and lower greenhouse gas emissions as part of an octane-on-demand fuel-delivery system. Unfortunately, these engines exacerbate engine knock.

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UC Irvine analysis finds renewable hydrogen sector could reach price parity with conventional fuel by mid- to late 2020s

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The California Energy Commission has released a UC Irvine roadmap for the buildout and deployment of renewable hydrogen production plants in California to support policy decisions and inform stakeholders. The roadmap effort developed several scenarios for the growth in renewable hydrogen demand through 2050. per kilogram by 2025.

Hydrogen 357
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NREL study finds 2nd-generation diesel hybrid delivery vans show significant gains in fuel economy over conventional vans

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Laboratory and in-use fuel economy results Source: NREL. The NREL team collected and analyzed in-service fuel economy, maintenance, and other vehicle performance data on 11 hybrid (P100H) and 11 conventional diesel (P100D) step vans operated by the United Parcel Service (UPS) in Minneapolis. Click to enlarge.

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DOE: Life cycle GHG emissions for 2020 electric small SUV were half those of a conventional gasoline small SUV

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The C2G GHG emissions results were generated using Argonne’s Greenhouse gas, Regulated Emissions, and Energy use in Technologies (GREET) model, with inputs of fuel economy and vehicle component sizing provided by Argonne’s Autonomie model. When fueled by hydrogen produced from landfill gas, the total dropped to 117 g CO 2 e/mi.

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NREL study finds Class 8 hybrid trucks delivered 13.7% higher fuel economy than conventional diesels in comparable usage

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Laboratory and in-use fuel economy comparison. higher fuel economy than the conventional tractors, resulting in a 12% reduction in fuel costs for the hybrids. higher fuel economy than the conventional tractors, resulting in a 12% reduction in fuel costs for the hybrids. Source: NREL.

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NREL report on electric bus demo at Foothill Transit finds Proterra fuel economy >8x higher than CNG on same line

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A team from the National Renewable Energy Laboratory (NREL) has released the second report summarizing the results of the battery-electric bus (BEB) demonstration underway at Foothill Transit in California. The CNG buses had an average fuel economy of 3.89 kWh per mile—17.35 miles per diesel gallon equivalent (mpdge).