If a battery energy storage system is burning, immediately contact SCE, and wait for their personnel to arrive.

• Isolate the area at least 300 feet in all directions. Keep unauthorized persons away.
• Protect exposures outside of the immediate hazard area, such as trees and buildings, to prevent fire from spreading.
• Wait for a qualified BESS SME to give the go-ahead to begin firefighting. Keep in mind that if BESS components are actively on fire, they are compromised and cannot be saved. Focus on supporting fire suppression systems from a safe distance, establish water supply for extended high-volume operations, and deploy hose lines at the standoff distance of 100 feet.
• Use methods appropriate for the specific chemistry of the battery. For example, if ignition has occurred in a lithium-ion battery bank, use a copious amount of water to prevent propagation to adjacent battery banks.

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