Ampyr Australia has chosen energy storage technology firm Fluence to deliver its Wellington Stage 1 battery energy storage system (BESS) in New South Wales, the companies said on Monday.
The 300MW / 600MWh facility, located near Wellington, marks Ampyr’s first grid-scale battery project to reach financial close in Australia. The system is expected to be operational in 2026 and is designed to support grid stability, enable greater renewable energy integration, and help reduce energy costs.
Fluence, a joint venture between Siemens and AES, will build, operate, and maintain the project under a 20-year service contract. The project will use Fluence’s Gridstack platform and include its AI-powered Mosaic bidding software and Nispera asset performance management system.
Jan Teichmann, Fluence’s senior vice president and Asia-Pacific president, said the project would enhance the resilience of the national grid.
“We are thrilled to be partnering with Ampyr on the Wellington Stage 1 BESS project, marking another step forward in strengthening Australia’s transition to a more sustainable energy future,” Teichmann said.
“Fluence has a strong track record of delivering BESS projects in Australia, and our established team is dedicated to ensuring the Wellington BESS will create a more resilient grid for Australia.”
The battery system will also support Ampyr’s virtual tolling contract, enabling the company to optimise charging and discharging cycles to maximise returns.
Ampyr Australia CEO Alex Wonhas said the project is part of a broader initiative to build 6000MWh of battery storage capacity by 2030.
“The Wellington Stage 1 grid-scale battery represents a significant contribution to growing Australia’s renewable energy capacity and strengthening its grid stability,” Wonhas said.
“This project is a crucial first step in our commitment to delivering 6000 MWh of operational BESS by 2030, directly addressing the growing need for grid-scale batteries.”
The Wellington BESS is among several large-scale storage projects aimed at improving energy reliability and flexibility in Australia’s rapidly evolving power market.
