South Australia battery storage developer Lunio Energy has energised its first grid-scale BESS at Strathalbyn and started trading in the NEM.
Strathalbyn is the inaugural operational project for Lunio Energy, a business within Australia's Lunio Group. The broader group also develops other technology-focused products, including Canopy, an artificial intelligence-based vegetation monitoring solution designed for electricity utilities, and Streamline, a dynamic pricing system serving transport and logistics companies.
Battery charging and discharging strategies for the project are managed through OptiGrid's OptiBidder platform. Using AI-driven forecasting capabilities together with optimisation algorithms, the software determines operating decisions and automatically places bids into both the energy market and contingency Frequency Control Ancillary Services (FCAS) markets.
At present, the platform oversees a portfolio exceeding 170MW of assets spanning both hybrid battery energy storage systems and standalone BESS installations throughout Australia. OptiGrid is backed by investors including the Clean Energy Finance Corporation, IP Group, Hostplus, the University of New South Wales (UNSW), Adelaide University, and EnergyLab.
Lunio Energy Chief Executive Officer Seth Thuraisingham said the company selected its optimisation provider because of its proven operational results.
"We selected OptiGrid to optimise trading of the Strathalbyn battery after OptiBidder showed strong results on the capture rate through our evaluation. Their team also brought real depth on the NEM and how batteries operate in South Australia, which gave us confidence through the investment decision."
OptiGrid CEO Sahand Karimi said operators in South Australia face a market that offers significant opportunities while also presenting considerable operational complexity.
"The high penetration of renewable energy in South Australia, while bringing many benefits, creates price volatility that is difficult to accurately forecast and respond to. Our forecasting models and optimisation algorithms have been developed through years of research, and they're built to turn that complexity into revenue."
Karimi added that the Strathalbyn battery energy storage system had already demonstrated its capabilities during the June market price cap events, even before entering full participation in FCAS markets.
According to the companies, South Australia has more operational battery storage capacity relative to demand than any other region within the National Electricity Market (NEM). It is also regarded as the NEM region that experiences extreme electricity pricing events most frequently.
As reported previously, the SA1 trading region reached the market price cap of AU$20,300/MWh (US$14,198/MWh) on two occasions during a single evening in June. Across that event, the battery fleet generated an estimated AU$324,000, although financial outcomes differed considerably between assets.
During those price spikes, four battery storage facilities discharged electricity into the grid, two systems were charging when prices peaked, and multiple assets with unused capacity did not operate.
The differing performance of battery assets during that market event underscored the commercial importance of optimisation quality, particularly in a market where only a few five-minute dispatch intervals can determine the revenue earned over an entire month.
The commissioning of the Strathalbyn project adds another asset to South Australia's rapidly expanding battery fleet, which has experienced substantial growth over the last two years.
In 2025, Wärtsilä completed the 150MW/300MWh Bungama battery energy storage system for Revera Energy in South Australia. Meanwhile, the Waratah Super Battery in New South Wales and the Melbourne Renewable Energy Hub have helped lift total battery storage capacity across the National Electricity Market beyond 10GWh.
Readers of Energy-Storage-News will likely be aware that the Finnish power solutions company announced last month it would combine its energy storage business into a 50:50 joint venture with German solar manufacturer RCT Solutions, effectively selling a 50% interest in that business.
Under the new arrangement, RCT Solutions CEO Peter Fath will lead the joint venture, succeeding Tamara de Gruyter, who had headed the business since the company's separation from industry veteran Andy Tang in 2025. Tang later joined Chinese lithium-ion OEM and BESS integrator Rept Battero.
Elsewhere in Australia, the nation connected 9.1GW of new electricity generation and storage capacity during FY26, more than twice the amount added in FY25. Battery energy storage systems accounted for the majority of both projects moving through the grid connection pipeline and the capacity reaching full commercial output.
Within this rapidly expanding market, Lunio Energy said that metrics such as normalised revenue and the percentage of perfect foresight have become increasingly important for battery owners assessing optimiser performance, since the difference between the maximum theoretical revenue and the actual capture rate directly influences the commercial viability of each project.
Lunio Energy also stated that it is progressing additional battery energy storage developments across South Australia, with the Strathalbyn facility representing the first operating asset in its broader development pipeline.
Originally reported by Energy Storage News on Jul 20, 2026.
