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The Role of Electric Vehicle Charging Technologies in the Decarbonisation of the Energy Grid

Author

Listed:
  • Julie Waldron

    (Department of Architecture & Built Environment, Faculty of Engineering, The University of Nottingham, Nottingham NG7 2RD, UK)

  • Lucelia Rodrigues

    (Department of Architecture & Built Environment, Faculty of Engineering, The University of Nottingham, Nottingham NG7 2RD, UK)

  • Mark Gillott

    (Department of Architecture & Built Environment, Faculty of Engineering, The University of Nottingham, Nottingham NG7 2RD, UK)

  • Sophie Naylor

    (Department of Architecture & Built Environment, Faculty of Engineering, The University of Nottingham, Nottingham NG7 2RD, UK)

  • Rob Shipman

    (Department of Architecture & Built Environment, Faculty of Engineering, The University of Nottingham, Nottingham NG7 2RD, UK)

Abstract

Vehicle-to-grid (V2G) has been identified as a key technology to help reduce carbon emissions from the transport and energy sectors. However, the benefits of this technology are best achieved when multiple variables are considered in the process of charging and discharging an electric vehicle. These variables include vehicle behaviour, building energy demand, renewable energy generation, and grid carbon intensity. It is expected that the transition to electric mobility will add pressure to the energy grid. Using the batteries of electric vehicles as energy storage to send energy back to the grid during high-demand, carbon-intensive periods will help to reduce the impact of introducing electric vehicles and minimise carbon emissions of the system. In this paper, the authors present a method and propose a V2G control scheme integrating one year of historical vehicle and energy datasets, aiming towards carbon emissions reduction through increased local consumption of renewable energy, offset of vehicle charging demand to low carbon intensity periods, and offset of local building demand from peak and carbon-intensive periods through storage in the vehicle battery. The study included assessment of strategic location and the number of chargers to support a fleet of five vehicles to make the transition to electric mobility and integrate vehicle-to-grid without impacting current service provision. The authors found that the proposed V2G scheme helped to reduce the average carbon intensity per kilowatt (gCO 2 /kWh) in simulation scenarios, despite the increased energy demand from electric vehicles charging. For instance, in one of the tested scenarios V2G reduced the average carbon intensity per kilowatt from 223.8 gCO 2 /kWh with unmanaged charging to 218.9 gCO 2 /kWh using V2G.

Suggested Citation

  • Julie Waldron & Lucelia Rodrigues & Mark Gillott & Sophie Naylor & Rob Shipman, 2022. "The Role of Electric Vehicle Charging Technologies in the Decarbonisation of the Energy Grid," Energies, MDPI, vol. 15(7), pages 1-25, March.
  • Handle: RePEc:gam:jeners:v:15:y:2022:i:7:p:2447-:d:780322
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    Cited by:

    1. Muqing Wu & Qingsu He & Yuping Liu & Ziqiang Zhang & Zhongwen Shi & Yifan He, 2022. "Machine Learning Techniques for Decarbonizing and Managing Renewable Energy Grids," Sustainability, MDPI, vol. 14(21), pages 1-13, October.

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