New safety bulletin highlights lithium-ion battery system risks offshore

NOPSEMA has published a new Safety Bulletin highlighting the safety risks associated with lithium-ion battery energy storage systems, which are increasingly being installed on offshore facilities as industry adopts new technologies to support electrification and decarbonisation. While lithium-ion batteries offer operational benefits, they can introduce significant hazards if not properly managed.

The bulletin outlines key risks associated with lithium-ion battery systems, including thermal runaway, fire and explosion, the release of toxic and flammable gases, prolonged fire events, and the potential for re-ignition. In an offshore environment, these hazards can have serious consequences and may escalate to affect personnel, safety-critical equipment and facility operations.

Operators are encouraged to ensure that hazard identification, risk assessments and safety-critical controls adequately address the unique characteristics of lithium-ion battery systems. This includes consideration of battery monitoring and detection systems, ventilation, fire suppression arrangements, emerging response measures, equipment location and the potential impacts on escape and evacuation arrangements.

The bulletin also reminds operators of their obligations under the Offshore Petroleum and Greenhouse Gas Storage (Safety) Regulations 2024 to review and revise safety case arrangements when new technical knowledge or changes to operations alter the management of safety risks.

NOPSEMA encourages titleholders, operators and workers to familiarise themselves with the hazards and risk controls associated with lithium-ion battery systems and consider the lessons outlined in the bulletin apply to their facilities.