Strategic Electric Vehicle Integration: Leveraging Hosting Capacity in Evolving Distribution Grids

The integration of electric vehicles (EVs) presents substantial challenges to distribution grid planning and operations due to the strain from increased charging infrastructure. Challenges encompass line and cable overloading, voltage fluctuations, and peak load escalations, among others. Inadequate planning and suboptimal integration strategies for EVs risk grid stability, potentially hindering further EV adoption. This study introduces a Hosting Capacity application within Distributed Energy Resource Management Systems (DERMS), designed to assist Distribution System Operators and engineers in accommodating significant EV integrations. We discuss scenarios where strategic employment of the Hosting Capacity application, as one part of a DERMS planning process, facilitates comprehensive analysis of the distribution grid's capacity to integrate new charging infrastructures. The efficacy of this approach is demonstrated through a real-world case study, examining the integration of three new 3MW charging stations into an existing supply substation region, underscoring the application's potential to support efficient EV grid integration.