Approximately three years after the Lithium-Ion ESS explosion event at the APS facility in Surprise, AZ, the main parties will discuss the lessons learned and the profound changes to
APS led the investigation, which included first-responder representatives, system integrator AES, operations and maintenance contractor Fluence, battery manufacturer
The objectives of this paper are 1) to describe some generic scenarios of energy storage battery fire incidents involving explosions, 2) discuss explosion pressure calculations
Background Around 5 p.m. on April 19, there were reports of smoke from the building housing the energy storage system at APS''s McMicken site in Surprise, Ariz. Hazardous Material units and
APS has assembled a team of engineers, safety experts and first responders to work with the utility, battery-maker Fluence and others to carefully remove and inspect the 378
On April 19, 2019, one male career Fire Captain, one male career Fire Engineer, and two male career Firefighters received serious injuries as a result of cascading thermal
The explosion revealed that lithium-ion batteries can be dangerous, even in the hands of experienced professionals like APS, storage vendor Fluence, and battery manufacturer LG
Last Friday evening in Surprise, Arizona a storage facility owned by Arizona Public Service (APS) exploded, injuring four firefighters. Reporter for azfamily , Maria
Recommendations to enhance safety of fire service personnel responding to incidents at battery storage sites and improve fire prevention and suppression measures
A new report, commissioned by APS, reveals what led up to the explosion at one of their battery storage facilities on April 19, 2019. SURPRISE, AZ — A new report, commissioned by APS, reveals what led up to the explosion at one of their battery storage facilities on April 19, 2019.
On April 19, 2019, a Battery Energy Storage System (BESS) fire and explosion occurred at an APS (Arizona Public Service) energy storage facility in Surprise, Arizona. The facility housed lithium-ion (Li-ion) battery modules, which experienced thermal runaway, leading to the release of flammable gases and a subsequent explosion. Firefighter Response
Battery maker LG Chem disputed a claim in an Arizona Public Service (APS) July report identifying an internal cell defect as the root cause of the April 2019 explosion at APS’s McMicken battery energy storage facility in Surprise, Ariz.
APS said they have two other large battery storage facilities in Arizona, but since the explosion, they have taken both out of service until the report's recommendations can be implemented. Meanwhile, Surprise Fire is still conducting its investigation into the explosion. You can read the full report here.
Commissioner Sandra Kennedy raised concerns in August 2019 about the use of lithium-ion battery chemistry in the wake of the APS fire. Her office did not respond to a request for comment. LG Chem disputes APS's claim that a battery cell failure initiated an April 2019 explosion, alleging an external heat source is the root cause.
APS last year announced plans to install about $1 billion in dozens more batteries like the one that exploded. The batteries will capture and store surplus energy, mostly from solar power plants and rooftop solar panels, and use it in the evening when the sun sets and solar panels stop making electricity.
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