AMPYR and Green Gold Energy to transform Port Augusta coal site with next-generation battery storage
ADELAIDE, Australia, 13 November 2025 — AMPYR Australia (AMPYR) has today announced an agreement with Green Gold Energy (GGE) to acquire the Davenport battery energy storage system (BESS) project in South Australia, which has been renamed the Northern Battery as part of the new partnership.
Expected to start construction in 2026, the Northern Battery will provide up to eight hours of energy storage through a 270 MW battery platform. The Northern Battery underscores AMPYR’s commitment to deliver six gigawatt hours of operational battery storage to the Australian grid by 2030 serving 10-20 per cent of future storage demand.
Under the agreement, AMPYR will build a grid forming, utility-scale battery, transforming the site of the decommissioned, coal-fired Northern Power Station in Port Augusta into a pillar of South Australia’s renewable energy future. GGE, a local Adelaide-based renewables developer, has developed the project since 2023 and will continue to support project development.
One of the first decisions under the new partnership was to relocate the project to the former Northern Power Station precinct. The move capitalises on pre-existing substation infrastructure and minimises community impacts.
The revitalisation of existing industrial infrastructure through projects like the Northern Battery will play a critical function in stabilising the SA grid and providing enough storage to power over 300,000 average homes from SA’s abundant solar and wind.
“South Australia is one of the global benchmarks in renewable generation. The next phase of its energy transition will be dominated by energy storage, not generation. The accelerated deployment of long duration grid-scale batteries is critical to strengthening system reliability and security while reducing consumer costs,” said AMPYR CEO Alex Wonhas.
“The Northern Battery represents more than just a storage development; it’s a symbol for the energy transition by transforming a former coal fired power station into a long-duration storage project. AMPYR is delighted to partner with Green Gold Energy on this industry-leading storage facility to power South Australia’s future. ”
“GGE is committed to supporting South Australia, and the wider nation, on the pathway to a 100% clean energy system, while maintaining grid stability and economic efficiency throughout the transition. In addition to developing renewable generation assets, GGE positions utility-scale storage and microgrids as essential infrastructure for a net-zero energy system, enabling stronger system security, lower long-term costs and greater operational flexibility,” said GGE Managing Director, John Huang.
“GGE’s partnership with AMPYR represents a strategic milestone in this approach. The Northern Battery project is designed as an integrated model that combines grid forming technology, intelligent storage and market-aligned dispatch, helping South Australia evolve from a leader in renewable uptake to a leader in sustainable renewable operation. The project is intended to serve as a scalable reference for the next phase of Australia’s energy-system transition.
AMPYR is engaging closely with the Port Augusta community in developing the Northern Battery, to ensure the project delivers jobs, business opportunities and other lasting benefits. This will include an initial $40,000 Community Benefit Fund, which will be launched shortly, to provide direct support for local projects that support this community. AMPYR is already working with the Nukunu Traditional Owners to build a partnership that delivers cultural, economic and social benefits for First Nations people and supports delivery of the Battery
About AMPYR Australia
AMPYR is a new independent power producer in Australia with global backing from AGP Sustainable Real Assets (AGP). AMPYR’s grid-scale battery projects offer innovative energy solutions, which are built from the ground up with customers in mind, to power Australia’s future industries. AMPYR’s energy solutions empower Australia’s future industries, like hyperscale datacentres, to decarbonise reliably and cost-effectively. AMPYR is on track to deliver more than 6 GWh of grid-scale battery storage in strategic grid locations by 2030, providing up to 20% of Australia’s future storage demand.
AMPYR is part of AGP, an independent global investor and asset manager that owns, develops and operates sustainable real assets across three core strategies: Energy, Digital Infrastructure (Data Centre) and Real Estate. AGP has over 860 MW Data centre capacity under development and 13 GW of clean energy assets operating or under development globally.
For more information, visit our website, or follow us on LinkedIn.
About GGE
Green Gold Energy provides turnkey solutions for Solar+ Projects. We specialise in the development, engineering, construction, operation and general contracting of renewable energy projects across Australia — with ongoing expansion into global markets.
With a track record of over 70 projects, including operational, under-construction, and under-development projects, and a project pipeline exceeding 1.2 GW of solar capacity and 2.5 GWh of battery energy storage systems (BESS), we are committed to delivering dependable, high-performance renewable energy solutions that contribute to a cleaner and more sustainable future.
For more information, visit our website, or follow us on LinkedIn.
Media contact
Courtney Phelps
Email: Ampyr@slingstone.com
Phone: +61 452 663 095