Akaysha Energy has commenced commercial operations at its 415 MW / 1,660 MWh Orana battery in New South Wales, bringing one of the NEM’s largest energy storage projects online. The four-hour duration facility underscores a day dominated by the immense scale of new storage, increasingly underwritten by surging demand from data centres. This trend was cemented by news that NextDC has secured a 12-year agreement to power its AI-focused data centres, a deal that directly enables a new four-hour battery in South Australia. The sheer scale of this new demand driver was further illustrated by a proposal from Energy North, which submitted a 1 GW off-grid hyperscale data centre with a staggering 16 GWh of co-located battery storage for federal environmental approval.
The project pipeline shows this momentum is widespread. In NSW, Neoen Australia has begun construction on a 215 MW / 963 MWh battery at its Culcairn Solar Farm, adding another significant asset to the state's storage fleet. This construction boom is being met with strong investor appetite, as a Singapore-based developer raised over $1 billion in green financing to support its Australian solar and battery portfolio. The increasing sophistication of these projects is also notable, with one of Australia’s first grid-forming wind and DC-coupled battery hybrid projects winning approval to connect to the main grid. These developments signal a maturing market where complex, large-scale storage is becoming the new standard.
As gigawatt-scale projects enter the system, market planners are grappling with how to integrate them and manage the demand they serve. AEMO’s 2026 Integrated System Plan forecasts flexible consumption could offset 2.3 GW of required capacity by 2050, introducing demand-side management as a core strategy. However, current modelling still treats demand response as a fixed input, highlighting a gap between planning ambition and implementation. This influx of new capacity is influencing market outcomes, with NEM spot prices averaging $105.9/MWh, down 9 per cent week-on-week as strong renewable generation, at 37.5 per cent of the mix, continues to suppress volatility.
Beneath the headline project announcements, the industry is focusing on the fundamentals of long-term performance and investment security. Discussions at a recent pv magazine Focus event emphasised that rigorous quality control and robust contract design are now more critical for BESS bankability than battery chemistry alone. This focus on de-risking projects reflects the vast capital being deployed and the need for asset owners to guarantee performance over decades. The commercial structures are also evolving, with Akaysha’s Orana battery utilising a virtual tolling agreement to navigate energy arbitrage and provide grid stability services.
While Australia’s storage pipeline accelerates, similar build-outs are underway globally. In Germany, utilities EnBW and VPI have launched construction on major BESS projects, part of a 2.5 GWh wave of new storage. These international developments provide context for the local boom, driven by universal needs for firming capacity. Looking ahead, regulators are focused on the details of grid integration. The AER is now consulting on the revenue determination for Transgrid’s hybrid System Strength Project, with submissions due by 28 July. Meanwhile, AEMO has opened several consultations on non-network options for its 2026 ISP, seeking feedback on reinforcing the grid in Tasmania, Brisbane, and North Queensland.