Energy storage system modules, battery cabinets, racks, or trays are permitted to contact adjacent walls or structures, provided that the battery shelf has a free air space for not less than 90 percent of its length. The most popular type of ESS is a battery system and the most common battery system is lithium-ion battery. These systems can pack a lot of energy in a small envelope, that is why some of. . The emergence of energy storage systems (ESSs), due to production from alternative energies such as wind and solar installations, has driven the need for installation requirements within the National Electrical Code (NEC) for the safe installation of these energy storage systems. This involves more than just connecting wires; it requires careful attention to ventilation and clearance. Adequate airflow is crucial, preventing overheating during operation. Our system is designed to enhance energy density and thermal performance, accelerate installation times, engineered for optimal serviceability, and minimizing capital. .