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Impacts of fleet types and charging modes for electric vehicles on emissions under different penetrations of wind power

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Listed:
  • Xinyu Chen

    (Harvard University)

  • Hongcai Zhang

    (Tsinghua University)

  • Zhiwei Xu

    (Tsinghua University)

  • Chris P. Nielsen

    (Harvard University)

  • Michael B. McElroy

    (Harvard University)

  • Jiajun Lv

    (Xi’an Jiaotong University)

Abstract

Current Chinese policy promotes the development of both electricity-propelled vehicles and carbon-free sources of power. Concern has been expressed that electric vehicles on average may emit more CO2 and conventional pollutants in China. Here, we explore the environmental implications of investments in different types of electric vehicle (public buses, taxis and private light-duty vehicles) and different modes (fast or slow) for charging under a range of different wind penetration levels. To do this, we take Beijing in 2020 as a case study and employ hourly simulation of vehicle charging behaviour and power system operation. Assuming the slow-charging option, we find that investments in electric private light-duty vehicles can result in an effective reduction in the emission of CO2 at several levels of wind penetration. The fast-charging option, however, is counter-productive. Electrifying buses and taxis offers the most effective option to reduce emissions of NOx, a major precursor for air pollution.

Suggested Citation

  • Xinyu Chen & Hongcai Zhang & Zhiwei Xu & Chris P. Nielsen & Michael B. McElroy & Jiajun Lv, 2018. "Impacts of fleet types and charging modes for electric vehicles on emissions under different penetrations of wind power," Nature Energy, Nature, vol. 3(5), pages 413-421, May.
    • Handle: RePEc:nat:natene:v:3:y:2018:i:5:d:10.1038_s41560-018-0133-0
    DOI: 10.1038/s41560-018-0133-0
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