31 August 2026
In 2027 Brunstock Australia expects to be supplying a 15 MWh battery energy storage system (BESS) for Flow Power’s Mil Lel Energy Project. The system comprises three 5 MWh battery containers, each delivering 4.6 MW of inverter output, along with a step-up transformer station—all manufactured by our parent company, Brunstock.
Situated in South Australia, the Mil Lel site will feature a 5 MW solar farm integrated with the BESS. This pairing enhances grid reliability and supports load balancing, particularly during peak demand periods.
The Brunstock BESS will also provide FCAS, contributing to a more stable and resilient electricity grid. As energy consumption continues to rise across the state, the Mil Lel project plays a vital role in delivering clean, dependable power to local businesses and communities.
Daniel Tragai, our BESS project leader, and some of the Brunstock team members standing in front of one of the BESS energy storage containers from this project at the Brunstock factory.
Brunstock Australia is a company that is committed to sustainable energy solutions. Brunstock’s battery energy storage systems are purpose-built for Australia’s harsh and remote environments. From precision welding and durable exterior finishes to a galvanised steel base, every component is designed for long-term performance.
Inside each cabinet, liquid-cooled batteries meet both IEC and Australian standards, ensuring high reliability and efficiency. Brunstock BESS supports rapid frequency modulation and network development, making it ideal for modern grid applications.
Our battery energy storage systems integrate long-life batteries, a BMS, a thermal management system (TMS), a safety management system (SMS) and an intelligent power distribution system (IPD) in a 20-foot standard container.
The Mil-Lel BESS project will feature three of our 5 MWh battery containers, giving a total of 15 MWh. These are further customised to output 4.6 MW through the inverter.
We are proud to work with Flow Power on both the BESS and the required step-up transformers for the Mil Lel Solar Farm. The equipment is scheduled to arrive in Australia and go to site in 2027 after which it will be tested, commissioned and put into service.