energy technology•Sun, August 16, 2026•4 min read

Why Australia’s Biggest Battery Project Is Just Getting Started

Quinbrook’s Supernode battery project has officially entered Stage 2 commercial operation and secured massive new financing for its next phase. As the project expands, it is redefining the role of energy storage in stabilizing Australia's power grid.

A New Chapter for Grid Stability

In the race to decarbonize the grid, storage is the name of the game. Australia is currently witnessing a massive leap forward in this space as the Supernode battery energy storage system (BESS)—already one of the country's largest projects—hits pivotal milestones. With Stage 2 now officially in commercial operation and A$469 million in new financing secured for Stage 3, the project is moving rapidly toward its goal of becoming a multi-gigawatt-hour power hub.

The project, spearheaded by Quinbrook Infrastructure Partners, is strategically located at the South Pine switchyard in Queensland. By anchoring a mix of renewable-powered digital infrastructure and large-scale storage, it serves as a critical buffer for the state's electricity grid.

The Supernode project site, a key development in Australian energy infrastructure.

Powering Up: The Growth of Supernode

The transition to a clean energy future requires more than just solar panels and wind turbines; it requires the ability to store that energy for when the sun sets or the wind dies down. Supernode was designed with this exact challenge in mind.

Stage 2 commercial operation is now live, providing immediate support to the Queensland grid.
Financial close of A$469 million for Stage 3 ensures continued construction and expansion.
The project is being developed in partnership with leading global battery manufacturer CATL.
Future-proofing: Plans are already in motion to explore a multi-gigawatt-hour extension for the facility.

Why Location Matters

What makes Supernode unique is its physical footprint and technical integration. By situating the facility near the central node of the Queensland electricity grid, the developers have successfully minimized marginal loss factors and curtailment risks—two common hurdles for large-scale renewable projects. This allows the battery array to act as a 'shock absorber' for the grid, helping to maintain stable power flow even during periods of high demand.

The Supernode project is a game-changer for Queensland. It is not just about powering the grid; it marks a significant leap forward in firming and renewable energy integration which represents the future of energy storage and grid stability.
— James Allan, Senior Director, Quinbrook

Key Takeaways

Supernode has transitioned to commercial operations for its second development stage.
A$469 million in new financing has been secured to fund the construction of Stage 3.
The project uses advanced battery technology provided by CATL to ensure grid stability.
Strategic location at the South Pine switchyard provides unique grid access and efficiency advantages.
The developers are already planning for a potential expansion beyond 5 GWh.

FAQ

What is the Supernode project?

Supernode is a large-scale Battery Energy Storage System (BESS) located in Queensland, Australia, designed to stabilize the power grid and store renewable energy.

Who is developing Supernode?

The project is managed by Quinbrook Infrastructure Partners in partnership with global battery manufacturer CATL.

Why is the location of the battery important?

Being located near the central node of the grid helps the facility reduce energy loss and mitigate the risk of electricity curtailment.

How much funding did Stage 3 receive?

Stage 3 reached financial close with A$469 million in new funding.