May 15, 2026
Queensland recently became the first NEM state to discharge over 100GWh in a single month. Image: Iberdrola.
The Australian arm of Spain-based utility and independent power producer (IPP) Iberdrola has submitted a 1,000MW battery energy storage system (BESS) to Australia’s Environment Protection and Biodiversity Conservation (EPBC) Act for federal environmental assessment.
The Burrenbring BESS, located approximately 8km north of Nebo township and 75km southwest of Mackay in the Isaac Regional Council area in Queensland, will have a duration of 2-4 hours and connect directly to Powerlink Queensland’s existing Nebo Substation via underground 275kV transmission infrastructure.
It will connect to the wider National Electricity Market (NEM), which spans Australia’s eastern and southern states and territories, and range between 2,000-4,000MWh in storage capacity.
