ASSESSING THE ROLE OF ENERGY STORAGE SYSTEMS IN BALANCING ELECTRIC VEHICLE CHARGING DEMANDS: AN ITALIAN CASE STUDY

Abstract
The rapid adoption of electric vehicles (EVs) has brought with it opportunities and challenges for power grids, particularly in managing peak demand and ensuring grid stability. In this study, the role of energy storage systems (ESS) in balancing EV charging needs in the Italian energy landscape is assessed. Real-world consumption patterns, renewable energy integration, and grid constraints are analyzed to assess the effectiveness of ESS in reducing grid stress and improving energy efficiency. A data-driven approach is used, which includes load forecasting models and scenario analysis to explore different ESS configurations. Lithium-ion batteries, vehicle-to-grid (V2G) technology, and hybrid storage solutions are considered, and their impact on peak shaving, frequency regulation, and energy cost optimization is investigated. Italy’s renewable energy policies and decarburization targets are also considered to provide insight into how ESS can enhance the sustainability of EV integration. The findings showed that peak load can be significantly reduced by up to 30% when ESS is strategically deployed, leading to improved grid reliability and reduced dependence on fossil fuel-based peaking power plants. Furthermore, grid flexibility can be increased through V2G systems, allowing electric vehicles to act as distributed storage units. However, economic viability is identified as a challenge that requires policy support and market incentives for large-scale adoption. This research contributes to the ongoing discourse on sustainable energy transition by highlighting the necessity of integrated ESS solutions in supporting EV growth. The insights from this study can be used by policymakers, grid operators, and energy stakeholders to develop optimal strategies for a flexible and decarbonized energy system. Keywords - Electric Vehicles, Energy Storage Systems, Grid Balancing, Renewable Energy Integration, Vehicle-To-Grid, Italy, Sustainable Energy