Energy storage project operation risk analysis

Can a large-scale solar battery energy storage system improve accident prevention and mitigation?

This work describes an improved risk assessment approach for analyzing safety designs in the battery energy storage system incorporated in large-scale solar to improve accident prevention and mitigation, via incorporating probabilistic event tree and systems theoretic analysis. The causal factors and mitigation measures are presented.

Which risk assessment methods are inadequate in complex power systems?

Traditional risk assessment methods such as Event Tree Analysis, Fault Tree Analysis, Failure Modes and Effects Analysis, Hazards and Operability, and Systems Theoretic Process Analysis are becoming inadequate for designing accident prevention and mitigation measures in complex power systems.

What happens if the energy storage system fails?

UCA5-N: When the energy storage system fails, the safety monitoring management system does not provide linkage protection logic. [H5] UCA5-P: When the energy storage system fails, the safety monitoring management system provides the wrong linkage protection logic.

How to reduce the safety risk associated with large battery systems?

To reduce the safety risk associated with large battery systems, it is imperative to consider and test the safety at all levels, from the cell level through module and battery level and all the way to the system level, to ensure that all the safety controls of the system work as expected.

What are the guidelines for battery management systems in energy storage applications?

Guidelines under development include IEEE P2686 “Recommended Practice for Battery Management Systems in Energy Storage Applications” (set for balloting in 2022). This recommended practice includes information on the design, installation, and configuration of battery management systems (BMSs) in stationary applications.

Should the energy storage industry shift to a predictive monitoring and maintenance process?

This article recommends that the energy storage industry shift to a predictive monitoring and maintenance process as the next step in improving BESS safety and operations. Predictive maintenance is already employed in other utility applications such as power plants, wind turbines, and PV systems.