Note that the Stationary Energy Storage Failure Incidents table tracks both utility-scale and C&I system failures. It is instructive to compare the number of failure incidents over time against the deployment of BESS. The graph to the right looks at the failure rate per cumulative deployed capacity, up to 12/31/2024.
Other Storage Failure Incidents – this table tracks incidents that do not fit the criteria for the first table. This could include failures involving the manufacturing, transportation, storage, and recycling of energy storage. Residential energy storage system failures are not currently tracked.
For more information on energy storage safety, visit the Storage Safety Wiki Page. The BESS Failure Incident Database was initiated in 2021 as part of a wider suite of BESS safety research after the concentration of lithium ion BESS fires in South Korea and the Surprise, AZ, incident in the US.
Stationary Energy Storage Failure Incidents – this table tracks utility-scale and commercial and industrial (C&I) failures. Other Storage Failure Incidents – this table tracks incidents that do not fit the criteria for the first table. This could include failures involving the manufacturing, transportation, storage, and recycling of energy storage.
Based on the reported incidents, the causes of safety accidents in energy storage systems can generally be categorized into four main types: inherent battery risks, external safety
Battery Energy Storage Systems, or BESS, help stabilize electrical grids by providing steady power flow despite fluctuations from inconsistent generation of renewable energy sources and
This database defines utility-scale BESS as a system that is inter-connected to the grid, with no capacity limitations, while C&I systems could include behind-the-meter installations. Residential energy
Energy storage systems (ESS) are critical to a clean and efficient electric grid, storing clean energy and enabling its use when it is needed. Installation is accelerating rapidly—as of Q3 2023, there was
A look at the data and literature around Failures and Fires in BESS Systems. The number of fires in Battery Energy Storage Systems (BESS) is decreasing.
Tracking information about systems that have experienced an incident, including age, manufacturer, chemistry, and application, could inform R&D actions taken by the industry to improve storage safety.
The following resources provide information on a broad range of storage technologies.
The public has become increasingly anxious about the safety of large-scale Li-ion battery energy-storage systems because of the frequent fire accidents in energy-storage
Whether attached to solar power systems or used as a backup generator, battery energy storage systems (BESS) are growing in popularity for homeowners in numerous states.
The rate of failure incidents fell 97% between 2018 and 2023, with a chart in the study showing that it went from around 9.2 failures per GW of battery energy storage systems (BESS) deployed in 2018 to
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