Energy storage equipment uses water for fire fighting

Can a sprinkler system fight a battery fire?

As already stated, the SUVEREN (I+II) fire tests showed that water is particularly suitable for fighting battery fires due to its extraordinary cooling effect. Conventional sprinkler systems use large amounts of water, which can cause greater damage to the electrics and electronics of the ESS.

What is an energy storage system (ESS)?

An energy storage system (ESS) is a system that stores energy for later use. ESSs are available in various forms and sizes, such as pumped-storage hydropower (PSH) used by utility companies to store energy by pumping water into a reservoir during times of low demand.

Why is water not effective on battery rack fires?

The rack installation of cells often impedes the water from reaching the fire, making it ineffective on battery rack fires. Additionally, the application of water on electronics can cause electrical faults (such as short circuits in the BESS) and damage to surrounding unburned batteries is likely.

How can a high pressure Watermist prevent a battery fire?

The gas concentrations measured during the tests demonstrated that smoke extraction, for example by Explosion Prevention Openings (EPO), is essential to minimize the explosion risk. The high-pressure watermist system suppressed the battery fire successfully even with fully opened EPOs.

Can a sprinkler system extinguish a lithium-ion battery fire?

While testing has demonstrated that sprinkler systems can be effective in extinguishing a lithium-ion battery fire, there are still drawbacks to using them. The application of water on electronics can cause electrical faults, such as short circuits in the BESS.

How do sprinkler systems protect ESS?

Sprinkler systems are the preferred method for protecting ESS due to their superior cooling capabilities, low cost, human safety, and environmental friendliness. While the rack frame may obstruct direct water flow to the cells, sprinklers can still effectively prevent a fire from spreading to adjacent racks.