The New South Wales Energy Security Corporation has made its first investment, committing USD 100 million to a large-scale battery storage platform to be developed across Sydney, Newcastle and the Hunter Central Coast, with the network expected to reach up to 1 gigawatt of capacity by 2031.

Inaugural Investment Targets the State's Highest-Demand Region

The announcement, released on Tuesday 16 June 2026 by the Minister for Energy and Climate Change, marks the first deployment of capital by the ESC since it was established by the Minns Labor Government.

The corporation was set up specifically to accelerate co-investment in energy projects considered critical to maintaining a reliable and secure electricity system in NSW while putting downward pressure on power bills.

The $100 million will fund the construction of four battery storage facilities. The first two are 200-megawatt projects, located at the Steel River Industrial Estate in Newcastle and at Homebush in Sydney.

The third and fourth projects will have capacities of approximately 100 megawatts and 150 megawatts, respectively. Combined, all four facilities will have the capacity to power up to 118,000 homes per day.

The projects will be delivered by PLUS Grid Storage, a separate entity within the Ausgrid Group that is responsible for building, owning and operating distribution-connected battery storage. The company operates independently of Ausgrid's regulated network business.

Timeline Tied to Coal Generator Retirements

The timing of the investment is explicitly linked to the expected retirement of NSW's coal-fired power stations. The first 500 megawatts of storage capacity is expected to be operational by early 2029, with a further 150 megawatts to be added later in the same year.

ESC Chief Executive Paul Peters said the location and timing of the projects were central to the decision to invest. "This is a platform investment in one of the state's most critical load centres, where demand is highest, land is constrained, and the need for storage is most immediate," he said. "PLUS Grid Storage's ability to deliver these projects by 2029, while making better use of existing infrastructure, was a critical factor in our decision to invest in this battery platform."

The ESC described the investment as reflecting its role in bringing forward projects where the timing and location are critical for the energy transition, specifically to maintain reliability as coal-fired generation goes offline.

Existing Infrastructure to Accelerate Delivery

A key element of the PLUS Grid Storage approach is the use of existing electricity network infrastructure across the project sites. According to the ESC, this is expected to help accelerate delivery of the batteries and reduce impacts on local communities. The ability to leverage existing infrastructure was cited by Peters as one of the factors that made PLUS Grid Storage's proposal attractive to the corporation.

The project at Steel River Industrial Estate in Newcastle is scheduled to begin construction as early as next month, making it the most immediately advanced of the four sites.

Kelly Wood, the executive in charge of PLUS Grid Storage, said the ESC's investment would accelerate the development of critical storage infrastructure across the three regions.

"These partnerships are essential to delivering the next generation of energy infrastructure for NSW and ensuring customers continue to have access to reliable and affordable electricity as the energy system changes," Wood said.

Government Frames Investment Around Reliability and Cost Pressure

Minister for Climate Change and Energy Penny Sharpe framed the investment as part of a broader effort by the Minns Government to use large-scale batteries to improve grid stability and address electricity prices.

"Large-scale batteries are revolutionising NSW's energy grid, delivering greater energy security and helping to drive down prices," Sharpe said. "With this first investment, the Minns Labor Government's Energy Security Corporation is helping to accelerate more of these critical projects, helping keep power reliable and affordable for everyone across the state."

The ESC was established with a mandate to act as a co-investor in projects that the private sector alone might not bring forward quickly enough, particularly in areas where the need is most acute due to geography, land constraints or the imminent retirement of legacy generation assets.

ESC Signals Further Investments to Come

Peters indicated that the PLUS Grid Storage commitment is the first of multiple planned investments by the corporation. "The Energy Security Corporation is looking forward to its next set of investments as we work to support a reliable and secure electricity system for NSW," he said, without specifying what those future investments would target.

The ESC's decision to deploy its inaugural capital into a battery platform rather than other generation or transmission technologies signals the corporation's assessment of where the most immediate gaps in the NSW system are likely to emerge as the state's coal fleet ages.

The four projects collectively represent a staged build-out across one of Australia's most densely populated and energy-intensive corridors, from Sydney's inner west through to the industrial zones of Newcastle and the broader Hunter Central Coast region.

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