According to NFPA 855, individual energy storage system units should generally be separated by at least three feet, unless the manufacturer has conducted large-scale fire testing (part of UL 9540A) to prove a smaller distance is safe. This prevents a fault in one unit from spreading. e cabinet and/or batteries. Consult with the local Authority Having Jurisdiction (AHJ) to obtain the proper permits and perm r operation and maintenance. For battery racks, there shall be a minimum clearance of 25 mm (1 in. Companies specializing in full-scenario energy solutions, like CNTE (Contemporary Nebula Technology Energy Co. This space allows for adequate airflow, safe maintenance access, and separation from potential hazards.
