Failure Event - US, Arizona, Peoria - 1 Oct 2025

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Overview

Event DetailsSMW-Info-button.png
Location: US, Arizona, Peoria
Capacity (MW): 25
Capacity (MWh): 100
Battery Module: Li ion
Integrator: Tesla
Application: Peak shaving
Installation: Substation
Enclosure Type: Container
Event Date: 1 October 2025
System Age (yr): 4
Extent of Damage:
State During Accident: Operational
Description: A fire occurred in a Megapack at the Bolster Substation Battery. Firefighters cooled adjacent Megapacks with water, and the fire was allowed to burn out under controlled conditions. No outages were associated with the incident.
Root Cause:
Failed Element:
Source: AZ Family
Additional Resources: T&D World
Note: Missing values in this table reflect unknowns.

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