Australia is about to switch on a major new chapter in the global energy transition.

Octopus Australia has announced plans to deliver Australia’s largest grid-scale battery project, setting a new benchmark for how clean power, private capital, and infrastructure execution come together at scale.

At the heart of the strategy is the Hanworth Battery Energy Storage System (BESS) in New South Wales — a 1.2 GW / 4.8 GWh project capable of powering more than 500,000 homes during peak demand. This isn’t just a battery. It’s a system-level asset designed to stabilise the grid, unlock renewable generation, and replace retiring coal capacity with firm, dispatchable clean power.

Alongside Hanworth, Octopus Australia is also advancing solar-plus-storage developments in Queensland, combining large-scale solar generation with integrated batteries to shift renewable energy to when the grid needs it most.

Why this matters — far beyond Australia

This project is a clear signal of where infrastructure markets are heading:

  • Battery storage becomes core infrastructure, not a bolt-on

  • Capital is moving from ambition to execution

  • Grid resilience and flexibility are now investable, scalable asset classes

  • Portfolio strategies (solar, wind, storage combined) are replacing single-asset bets

For investors, lenders, policymakers, and developers globally, projects like Hanworth show how energy storage is reshaping power markets — technically, financially, and politically.

From headline to deal-room discussion

This exact shift — turning capital into execution — sits at the centre of discussions at Global Infrastructure Dialogue (GID), where senior decision-makers from infrastructure, energy, finance, and government meet behind closed doors to discuss what actually works on the ground.

Battery storage, grid stability, bankability, and scaling clean infrastructure are no longer future topics — they are live investment questions.

For more information, media enquiries, or to enquire about this topic at GID, the event Global Infrastructure Dialogue on 29th - 30th of June in Frankfurt, Germany at Sofitel, please reach out to the media team at
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London, 8th of Feb, 2026