One such solution is the integration of onsite batteries or electrical storage systems. These systems can serve as an energy buffer during charging and enhance grid resiliency. several options are available for on-site renewable generation, and the best solution can vary from one location to another, this resource focuses on solar photovoltaic (PV) systems as a specific example of on-site renewable energy generation. To achieve sustainability goals while meeting the. Battery Energy Storage Systems (BESS) are essential for commercial and industrial customers looking to gain energy resilience, reduce demand charges, and optimize energy usage.