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    FOTW #1131: Average Fuel Economy for Model Year 2019 Light-Duty Vehicles Was 95% Better than Model Year 1975

    Originally posted by the Department of Energy Office of Energy Efficiency and Renewable Energy | Original Article

    The average production-weighted fuel economy for all new light-duty vehicles in model year (MY) 2019 was 95% better than in MY 1975, while average horsepower was 78% higher and weight was 1% higher. From the late 1980s to the mid-2000s, fuel economy generally declined while horsepower and weight increased. Since 2004, due to technical innovations, fuel economy and horsepower have increased while vehicle weight has stayed about the same.

    Note: Data for 2019 are preliminary. All data are production weighted.

    Source: U.S. Environmental Protection Agency, 2019 EPA Automotive Trends Report, EPA-420-R-20-006, March 2020

    Fact #1131 Dataset

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    FOTW #1128: Innovations in Automotive Battery Cell Composition

    Originally posted by the Department of Energy Office of Energy Efficiency and Renewable Energy | Original Article

    In 2019, most plug-in electric vehicles were powered by lithium-ion batteries. The cells in a lithium-ion battery are more complex than the lead-acid cells of a conventional vehicle’s battery, and they are composed of different materials. The exact chemistry of automotive lithium-ion batteries can vary by manufacturer. The Department of Energy has recently launched the ReCell Advanced Battery Recycling Center to further research on recycling technologies for current lithium-ion batteries and future battery chemistries.


    Source:
     Presentation by Argonne National Laboratory researcher Linda Gaines at the 2020 Transportation Research Board 99th Annual Meeting, January 12–16, 2020.

    Fact #1128 Dataset


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