Impact of EVCS on Distribution System in India, EV, PV Energy Management

Abstract

The integration of Electric Vehicle Charging Stations (EVCS) with photovoltaic (PV) systems presents a promising avenue for enhancing energy efficiency and sustainability in distribution systems. This paper explores the impact of EVCS on the distribution system in India, focusing on the interplay between Electric Vehicles (EVs), PV energy generation, and the overall management of energy resources. We employ a comprehensive model incorporating various charging strategies Average Rate (AR), Immediate Charging (IMM), and Optimized Charging (OPT) to evaluate their effects on net costs, energy prices, and system performance.
Utilizing data from the ERCOT day-ahead market and the Pecan Street Project, our simulation examines a range of scenarios to quantify the economic and operational implications of different charging strategies. The study reveals significant variations in net costs across strategies, with IMM and OPT demonstrating superior performance in reducing costs compared to AR. Specifically, Optimized Charging (OPT) offers substantial cost savings by leveraging dynamic pricing and maximizing the utilization of PV-generated energy. Additionally, the study highlights the benefits of integrating EVCS with PV systems in mitigating peak demand, enhancing grid stability, and reducing overall energy costs.
Our findings underscore the critical role of advanced energy management systems (EMS) in optimizing the interaction between EV charging and PV generation. The research provides actionable insights for policymakers, utilities, and stakeholders to develop effective strategies for integrating EVCS into the distribution network, ultimately supporting India's transition towards a more sustainable and resilient energy future.