This tutorial will present a case study and hands-on training regarding the design, analysis, test and certification of a commercial Lithium Ion Energy Storage System (ESS) that was involved in a recent fire event. The tutorial will go beyond the basics of hazard identification and risk mitigation, and explore areas that the System Safety Engineer/Manager should consider, including regulatory authority interface, legal liability, transfer of risk and enterprise liability. While the tutorial is based on actual experience from an international company, the fact pattern has been sanitized for educational purposes.The lecture presentation will begin with background on the commercial energy storage domain, and the industry-specific safety standards, guidelines, third-party safety certifications, and risk assessment and management. Differences from the MIL-STD-882E safety process and DoD risk assessment will be explored.The majority of the tutorial will be a case study of a recent failure and fire event that occurred with a fielded Lithium Ion Energy Storage Unit at a "green" energy generation site. The mishap description will be presented, and then attendees will be invited to discuss possible causal factors, including deficiencies in requirements definition, design and manufacturing defects, hardware failures, software flaws, and human errors. Subsequent presentation will detail the actual investigation and root cause analysis, corrective actions, modifications to fielded systems, subsequent risk assessment by both the manufacturer and its insurance company, conduct of the parties involved, and the legal outcome and findings. The session will conclude with an interactive discussion of what could have been done to prevent the incident, and "lessons learned" for Sys ...
Hampton 6 37th International System Safety Conference isssconferences@system-safety.org
This tutorial will present a case study and hands-on training regarding the design, analysis, test and certification of a commercial Lithium Ion Energy Storage System (ESS) that was involved in a recent fire event. The tutorial will go beyond the basics of hazard identification and risk mitigation, and explore areas that the System Safety Engineer/Manager should consider, including regulatory authority interface, legal liability, transfer of risk and enterprise liability. While the tutorial is based on actual experience from an international company, the fact pattern has been sanitized for educational purposes.
The lecture presentation will begin with background on the commercial energy storage domain, and the industry-specific safety standards, guidelines, third-party safety certifications, and risk assessment and management. Differences from the MIL-STD-882E safety process and DoD risk assessment will be explored.
The majority of the tutorial will be a case study of a recent failure and fire event that occurred with a fielded Lithium Ion Energy Storage Unit at a "green" energy generation site. The mishap description will be presented, and then attendees will be invited to discuss possible causal factors, including deficiencies in requirements definition, design and manufacturing defects, hardware failures, software flaws, and human errors. Subsequent presentation will detail the actual investigation and root cause analysis, corrective actions, modifications to fielded systems, subsequent risk assessment by both the manufacturer and its insurance company, conduct of the parties involved, and the legal outcome and findings. The session will conclude with an interactive discussion of what could have been done to prevent the incident, and "lessons learned" for System Safety Engineers of all experience levels.
Upon completion of the tutorial, the attendee should have a basic understanding of:
•?MIL-STD-882E versus commercial energy industry safety programs
•?Energy System design and safety standards
•?Hazard analysis techniques for energy systems
•?Failure Review Board (FRB) and root cause analysis
•?Risk Assessment and Management techniques
• Advantages/disadvantages of third party safety certifications during development and installation
