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Legend: Explanations & Illustrations Rationale Note Revision history Print

Clause 10.3 - ENERGY STORAGE SYSTEMS

10.3.1 General

(a) Energy Storage System refers to one or more devices, assembled together, capable of storing energy in order to supply electrical energy at a future time to the local power loads, to the utility grid, or for grid support.

(b) This set of fire safety requirements need not be applicable to Energy Storage System installations where the total stored energy is less than the Threshold Stored Energy listed in Table 10.3.1 below.

(c) All Energy Storage System installations shall be located at the same storey as the fire engine accessway/fire engine access road.

(d) The allowable Maximum Stored Energy for the various battery technologies in each compartment shall be as listed in Table 10.3.1.

TABLE 10.3.1: STORED ENERGY CAPACITY OF ENERGY STORAGE SYSTEM
Type Threshold Stored Energy a
(kWh)
Maximum Stored Energy a
(kWh)
Lead-acid batteries, all types70600
Nickel batteries b70600
Lithium-ion batteries, all types 20 600
Sodium nickel chloride batteries 20 600
Flow batteries c 20 600
Other batteries technologies 10 200
Notes:
 
a        It shall refer to an aggregated stored energy capacity per compartment. For battery rating in Amp-Hours, kWh is equal to maximum rated voltage multiplied by amp-hr rating divided by 1000.
 
b        Nickel battery technologies include nickel cadmium (Ni-Cad), nickel metal hydride (Ni-MH), and nickel zinc (Ni-Zn).
 
c        Includes vanadium, zinc-bromine, polysulfide-bromide, and other flowing electrolyte-type technologies.