As WA’s power system transitions towards a higher penetration of renewable generation – both large-scale and small-scale – the balance between supply and demand is being reshaped in real time. Battery Energy Storage Systems (BESS) are emerging as critical enabling technology for grid stability, supporting the development of new market services, and redefining how energy is dispatched over time to create value for all SWIS market participants. This session explores how the evolving technical capabilities of BESS, in conjunction with amendments to the regulatory and market frameworks, are transforming WA’s energy landscape. It will provide specific insights on grid-forming technology, potential future BESS duration requirements, and the next generation of storage-enabled markets and energy services.