In February 2026 our three 5 MWh BESS blocks and two step-up skid stations arrived on site in Naracoorte, South Australia. It was a stunning day and the installation all went according to plan.
A delightful sunrise over Naracoorte, South Australia and the Brunstock BESS site awaiting delivery of our step-up stations and BESS containers
This 15 MWh battery energy storage system (BESS) at Flow Power’s Naracoorte Energy Project comprises three 5 MWh battery containers, each delivering 4.6 MW of inverter output, along with step-up transformer stations.
Situated in South Australia, the Naracoorte 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 empty site at Naracoorte BESS in South Australia, awaiting delivery of our BESS and step-up stations, February 2026
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 Naracoorte project plays a vital role in delivering clean, dependable power to local businesses and communities.
Brunstock is committed to sustainable energy solutions in Africa, Australia, Europe and other parts of the globe. Our battery energy storage systems are purpose-built for harsh and demanding environments like those found on remote Australian project sites like this. From precision welding and durable exterior finishes to a galvanised steel base, every component of the BRUN-BESS-5MWh series is designed for long-term performance.
Brunstock BESS and step-up skid stations being delivered at Naracoorte in South Australia, February 2026
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 lithium-ion 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.
We are proud to have worked closely with Flow Power on both the BESS and the required step-up transformers for the Naracoorte Solar Farm.
Installation of Brunstock BESS at Naracoorte in South Australia, February 2026