Difference between revisions of "Failure Event - US, AZ, Surprise - 19 Apr 2019"

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:''Note: Missing values in this table reflect unknowns.''
:''Note: Missing values in this table reflect unknowns.''


If you have any details or corrections you would like to contribute to the database please reach out to [mailto:dlong@epri.com Dirk Long].
If you have any details or corrections you would like to contribute to the database please reach out to our [mailto:Storage-Safety@epri.com Storage Safety email].


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  |Has Enclosure Type=Prefab
  |Has Enclosure Type=Prefab
  |Has Event Date=04/19/2019
  |Has Event Date=04/19/2019
  |Has System Age (yr)=2.0
  |Has System Age (yr)=2.1
  |Has Extent of Damage=Explosion
  |Has Extent of Damage=Explosion
  |Has State During Accident=
  |Has State During Accident=
  |Has Event Description=
  |Has Event Description=The cause was found to be an internal cell defect, which initiated a cascading thermal runaway event. Alarms and the clean agent fire suppression system activated but was not capable of preventing or stopping cascading thermal runaway in a BESS. Three hours after thermal runaway was intiated, firefighters opened a door to the battery container, agitating accumulated flammable gases and allowing the gases to contact a heat source or spark. Minutes later, an explosion occurred, injuring several firefighters.
  |Has Source=[https://www.aps.com/en/About/Our-Company/Newsroom/Articles/Equipment-failure-at-McMicken-Battery-Facility APS]
  |Has Source=[https://epri.box.com/s/eapg9tmt5bize3yqjb0wmz1rj5z07b9i APS Investigation Report]
  |Has Additional Resources=
  |Has Additional Resources=
  |Has Failure Event Category=ESS
  |Has Failure Event Category=ESS

Latest revision as of 12:38, 10 April 2024

Overview

Event DetailsSMW-Info-button.png
Location: US, AZ, Surprise
Capacity (MW): 2
Capacity (MWh): 2
Battery Module: LG Chem [NMC]
Integrator: AES/Fluence
Application: Volt Reg., PQ, Solar int.
Installation: Substation
Enclosure Type: Prefab
Event Date: 19 April 2019
System Age (yr): 2.1
Extent of Damage: Explosion
State During Accident:
Description: The cause was found to be an internal cell defect, which initiated a cascading thermal runaway event. Alarms and the clean agent fire suppression system activated but was not capable of preventing or stopping cascading thermal runaway in a BESS. Three hours after thermal runaway was intiated, firefighters opened a door to the battery container, agitating accumulated flammable gases and allowing the gases to contact a heat source or spark. Minutes later, an explosion occurred, injuring several firefighters.
Source: APS Investigation Report
Additional Resources:
Note: Missing values in this table reflect unknowns.

If you have any details or corrections you would like to contribute to the database please reach out to our Storage Safety email.