BATTERY ENERGY STORAGE SYSTEMS
The BESS design and installation shall be modularized and connected in a manner that enables adequate access for easy field removal and replacement of failed modules or equipment.
The energy storage system shall comply with applicable requirements in Section 1206.15. The energy storage system shall be installed in accordance with the manufacturer's instructions and their listing. Individual energy storage system units shall be separated from each other by at least 3 feet (914 mm).
1206.11.3 Fire-resistance rated construction. Rooms and other indoor areas containing energy storage systems shall be separated from other areas of the building in accordance with Section 1206.14.4 and Chapter 7 of this code. Energy storage systems shall be permitted to be in the same room as the equipment they support.
ENERGY STORAGE SYSTEM CABINET. A cabinet containing components of the energy storage system that is included in the UL 9540 listing for the system. Personnel are not able to enter the enclosure, other than reaching in to access components for maintenance purposes.
Electrochemical energy storage systems shall be segregated into groups not exceeding 50 kWh (180 Mega joules). Each group shall be separated a minimum 3 feet (914 mm) from other groups and from walls in the storage room or area. The storage arrangements shall comply with Chapter 10 of this code.
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