Brisbane has this week commissioned Australia’s first grid-connected Sodium-Sulfur (NAS) battery, marking a significant milestone for long-duration energy storage and grid stability in Queensland. The 250 kW / 1.45 MWh system, located at Lava Blue’s Centre for Predictive Research into Specialty Materials (PRiSM) facility, is now integrated into Energex’s local distribution network and the National Electricity Market (NEM).
The deployment of this advanced battery technology, manufactured by Japan-based NGK, represents a crucial step in diversifying Australia’s energy storage landscape beyond traditional lithium-ion solutions. Its primary role is to assess the performance of long-duration energy storage when paired with renewable generation in an industrial setting, providing a stable, clean power supply for energy-intensive operations.
A New Frontier for Australian Energy Storage
The NAS battery, with its substantial 1.45 MWh capacity, is designed to integrate with an existing 200 kW solar generation system at the PRiSM facility. This allows it to supply up to 100% of the site’s peak operating load, demonstrating its potential for industrial self-sufficiency and grid support. The project was developed through the Queensland Energy Storage Technology (QUEST) Hub, a collaborative initiative funded by the Queensland Government and the Queensland University of Technology (QUT), highlighting a concerted effort to foster innovation in local battery materials and chemistries.
Michael McCann, Managing Director of Lava Blue, stated that the installation will provide invaluable operational data on the interaction between industrial processing and future energy systems. This data is critical for understanding how long-duration storage can underpin renewable electricity supply for extended periods, particularly for high-demand industrial activities.
“The installation will allow the company to assess long-duration energy storage alongside renewable generation in an industrial setting, generating operational data on the interaction between industrial processing and future energy systems.”
The Advantages of Sodium-Sulfur Technology
Unlike the more common lithium-ion batteries, Sodium-Sulfur technology offers distinct advantages for long-duration applications. These include a longer lifespan, enhanced safety characteristics due to its chemistry, and suitability for large-scale, stationary storage. Internationally, NAS technology boasts over two decades of commercial operating experience, with approximately 5 GWh deployed across more than 250 applications globally.
While a smaller NAS battery system was previously deployed for QUT at a remote Western Australian mining site in 2023, this Brisbane installation marks Australia’s first grid-connected example. Its connection to the NEM provides a unique opportunity to gather data on its performance within a live grid environment, paving the way for broader adoption of such technologies.
Broader Implications for Australia’s Grid
The commissioning of this NAS battery comes at a critical time for Australia’s energy transition. The Australian Energy Market Operator (AEMO) has consistently highlighted the need for diverse storage solutions to manage the increasing penetration of intermittent renewable energy sources like solar and wind. Long-duration storage, such as that offered by NAS batteries, can play a vital role in firming renewable output, shifting excess daytime solar generation to meet evening peak demand, and enhancing overall grid stability.
As Australia aims for 82% renewable energy by 2030, the ability to store energy for extended periods will become increasingly important. This project complements the ongoing rapid expansion of both grid-scale and household battery storage across the country. The federal government’s Cheaper Home Batteries Program, for instance, has already supported the installation of 2.4 GW/7.4 GWh of household batteries since July 2025, with rebates continuing to make home batteries more accessible.
While household batteries, like those compared in our guide to Best Home Batteries for Australian Homes 2026: Performance, Warranties & Value Compared, primarily focus on residential energy independence and demand management, grid-scale solutions like the NAS battery address systemic challenges. The data gathered from the Brisbane project will be instrumental in informing future policy and investment decisions for similar long-duration storage projects, contributing to Australia’s overall Power Outage Preparedness 2026: Your $4,350+ Australian Home Resilience Guide. The ability of such batteries to provide sustained power during periods of system stress will be a key factor in maintaining grid reliability as coal-fired power plants continue to retire.
The successful operation and data collection from this pioneering Sodium-Sulfur battery will offer valuable insights into its commercial viability and technical performance under Australian conditions, potentially unlocking a new pathway for industrial decarbonisation and grid resilience.
Future Outlook
The long-term impact of this deployment extends beyond the immediate industrial application. By validating the performance of NAS technology in a grid-connected environment, Australia positions itself to consider a wider array of energy storage solutions for its future energy needs. This could lead to further investment in advanced battery manufacturing and deployment, further strengthening Australia’s energy security and accelerating the transition to a high-renewable energy grid.
As energy market dynamics continue to evolve, with increasing demand and the retirement of traditional generation, diverse and robust battery storage technologies will be critical. The Brisbane NAS battery is a tangible step towards a more resilient and sustainable energy future for Australia.