Analysis of safety issues of household energy storage power supply

What is an H&S risk related to an electrical energy storage system?

For this project we have adopted a broad definition for an H&S risk related to an Electrical Energy Storage (EES) system. This is: ‘Any hazard caused by the energy storage system which could lead to the risk of injury or loss of life to any stakeholder who is interacting with the system across its lifecycle’.

What is energy storage hazard?

This is: ‘Any hazard caused by the energy storage system which could lead to the risk of injury or loss of life to any stakeholder who is interacting with the system across its lifecycle’. The hazards identified within this section will form an input to later standards gap analysis.

Are battery energy storage systems safe?

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. These units may provide safer, cleaner backup power during outages. Like lithium-ion batteries generally, residential BESS may catch fire or even explode.

Is there a potential gap between energy storage systems and electrical installations?

This specific guidance is not provided in UK standards highlighting a potential gap. As part of the electrical installation, there are potential risks around sustained electrical arcing related to the fault current infeed from energy storage systems. This is an area which would benefit from further research outwith this project.

What are electrical energy storage systems (EESS)?

Overall, Electrical Energy Storage Systems (EESS) enhance grid flexibility allowing the electricity system to cope with a wider range of demands and support a range of operating philosophies.

Where can I find guidance on electrical energy storage systems (EESS)?

A key source of UK-specific guidance on EESS is the IET Code of Practice for Electrical Energy Storage Systems 2017.