Abstract
The rapid uptake of electric vehicles (EVs) has introduced significant impacts on various fields, including power distribution grids. To ensure power quality standards are adhered to, network planners and policymakers need to develop EV hosting capacities that guide EV-grid integration. This paper focuses on the practical implementation of EV hosting capacity regulations in various political and social contexts. There is a growing body of literature on EV hosting capacities informed by load flow simulations; these studies typically define the EV hosting capacity as the percentage of households that can install an EV charger before the grid becomes constrained. However, little attention has been given to the practical implementation of these hosting capacities. The way in which EV hosting capacities are defined and enforced has a major impact on both the uptake of EVs as well as the potential to overwhelm grid infrastructure. There are a range of legal mechanisms to implement EV hosting capacities, and these can range from “hard laws” that limit EV charger capacities through legally binding instruments to “soft laws” that utilize tariff-based incentives to shift EV loads to times when the grid has available capacity. Our hypothesis is that a range of factors should influence the design of locally appropriate EV regulation. These criteria may include the history of regulatory compliance in that customer segment, the technical capacity of the grid operator, and the urgency of implementation. The contribution of this paper is to initiate the development of a decision framework to guide the policymakers design locally appropriate EV hosting capacity regulations. The eventual decision framework will be of relevance to network planners and policymakers that are developing regulations to manage the uptake of EVs on their networks.
Published Version
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