Queensland's CleanCo is set to establish the largest grid-connected sodium sulphur battery installation at Swanbank, near Ipswich. This 1.5 MW battery with six hours of storage capacity will be a pioneering move in transitioning former coal sites into clean energy hubs. The NAS battery technology, known for its use of liquid sodium and sulfur electrodes, offers advantages such as thermal safety, durability, and absence of toxic elements. Collaborating with Allset, CleanCo aims to explore the commercial and operational potential of long-duration energy storage. Additional trials at the site include iron flow and zinc-bromine flow batteries by Stanwell, marking a significant shift towards alternative storage technologies in Queensland. The scalability of the NAS battery to gigawatt projects and its potential role in carbon-neutral operations are emphasized. By engaging Queensland University of Technology for a comprehensive study, the initiative seeks to make informed investment decisions by 2025, indicating a strategic approach towards sustainable energy solutions. The project signifies a pivotal step for Australia in adopting innovative technologies for stable power supply, with global recognition of over 250 NAS battery deployments worldwide.