The case for Bi-directional charging of electric vehicles in low voltage distribution networks

Constance Crozier, Thomas Morstyn, Matthew Deakin and Malcolm McCulloch

Applied Energy, 2020, vol. 259, issue C

Abstract: In recent years, there has been growing interest in AC vehicle-to-grid charging in residential networks. Bi-directional smart charging offers additional flexibility compared to uni-directional smart chargers, but are expensive to install and implement. This paper investigates the costs and benefits to the distribution network that bi-directional charging provides, relative to uni-directional charging. Benefit is quantified in terms of the reduction in the peak demand of the network, and costs are quantified with the increase in throughput of the vehicles’ batteries and the increase in electrical losses in the system. Measured data and representative networks are used to construct two representative case studies of residential charging, one in the UK and one in Texas, US.

Keywords: Electric vehicles; Losses; Low-voltage networks; Vehicle-to-grid (search for similar items in EconPapers)
Date: 2020
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Citations: View citations in EconPapers (7)

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DOI: 10.1016/j.apenergy.2019.114214

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