Approval Secured for 125 MW / 1 GWh Battery Energy Storage System in Australia

Energy Vault Holdings, Inc. a global energy infrastructure company supporting grid reliability and next-generation AI and high-performance computing infrastructure, announced that the New South Wales Government has granted State Significant Development Approval (SSD-75680468) for its 125 MW / 1 GWh Stoney Creek Battery Energy Storage System (BESS) in Narrabri, northern New South Wales, Australia.

The approval represents a key development milestone for Stoney Creek, resulting from a successful comprehensive environmental and planning assessment led by the NSW Department of Planning, Housing and Infrastructure, including public exhibition of the Environmental Impact Statement, consultation with government agencies and local stakeholders, and incorporation of project design refinements and consent conditions. Combined with Energy Vault's outright acquisition of the project, the approval substantially de-risks the project's remaining development path and accelerates its progression toward construction.

Geotechnical works were completed on site in late August 2026. Site works and mobilization are expected to commence in Q4 2026, with commercial operations beginning in H1 2028, subject to satisfaction of remaining conditions and customary project requirements.

The project is supported by a 14-year Long-Term Energy Service Agreement (“LTESA”) awarded through AEMO Services under the New South Wales Electricity Infrastructure Roadmap. The LTESA provides long-term contracted revenue support which, together with anticipated merchant market revenues, is expected to support approximately US$25–30 million of annual project revenue once operational.