Australian energy infrastructure investor Quinbrook has announced the start of commercial operations for Stage 1 of its Supernode battery storage project, located at the South Pine substation in Brisbane, Australia. Stage 1 is now operating at full output to the Queensland electricity grid and the broader National Electricity Market (NEM), with commercial tolling managed by Origin Energy (Quinbrook press release, 17/02/2026).
Supernode Stage 1 comprises a 260 MW/619 MWh of installed capacity. Construction continues on Stages 2 and 3, scheduled for completion in 2026 and 2027 respectively, bringing Supernode's total capacity to 780 MW/3,074 MWh, according to the press release.
- The first two stages, with a combined capacity of 520 MW/1,858 MWh, will operate under long-term offtake agreements with Origin Energy. Following the successful commissioning of Stage 1, Quinbrook has submitted the second stage of its Supernode BESS for review under Australia's Environment Protection and Biodiversity Conservation (EPBC) Act process.
- Stage 3 (260 MW/1,216 MWh) is supported by an offtake agreement with Queensland-owned energy company Stanwell.
Quinbrook has also announced a stage 4 expansion, currently in pre-construction, which will feature the first deployment of its EnerQB long-duration energy storage (LDES) solution developed in partnership with CATL. The company plans to deploy approximately 3 GW of EnerQB technology (equivalent to 24 GWh of storage capacity) across Australia, starting with the Supernode project.