Introduced in the 2017 NEC, Article 706 was created to centralize the rules for the growing number of ESS installations, from a solar powered generator for home to large commercial battery banks. . For any master electrician or journeyman electrician, understanding the specific nec rules energy storage systems must follow is no longer optional—it's critical for safety, compliance, and performance. This involves more than just connecting wires; it requires careful attention to ventilation and clearance. Adhering to established codes for battery cabinets protects your investment, ensures safety, and. . Where top terminal batteries are installed on tiered racks or on shelves of battery cabinets, working space in accordance with the battery manufacturer's instructions shall be provided between the highest point on a cell and the row, shelf, or ceiling above that point. Informational Note: IEEE. . ection of a battery installation by an inspector. These are the National Electrical Code (NEC/NFPA 70)1 and the Standard for Ele trical Safety in the Workplace (NFPA 70E)2. This paper will examine recent battery-related changes in both documents as well as changes in the NFPA 70E Handbook. . 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. Solar panels and battery. .