Radically accelerating the world’s renewable transition
Green Gravity uses disused mines to store energy. This allows renewable energy to be used when it is needed.
Our technology
Green Gravity’s technology raises and lowers heavy weights in a mine shaft to capture and release the gravitational energy of the weights.
Green Gravity named Winner for Clean Technology Impact at the 2025 NSW Sustainability Awards
February 5, 2026
Green Gravity were recognised by the NSW Government and The Banksia Foundation for excellence in Clean Technology Impact at the 2025 NSW Sustainability Awards, held at the Australian National Maritime Museum, Sydney in December.
Green Gravity successfully concludes NSW Government Net Zero Manufacturing project
February 4, 2026
Green Gravity’s “technology offers regional economic renewal by re-employing mining expertise in a clean energy context. When existing infrastructure and disturbed land are used to make the sun’s energy available during the night, NSW will be a step closer to meeting its renewable energy targets.”
Green Gravity named as winner for the Excellent in Sustainability for the State Business Awards
October 31, 2025
Business NSW
The Business Awards honour the ingenuity, resilience, and dedication demonstrated by businesses across New South Wales.
Green Gravity and IIT (ISM) Dhanbad’s Research Park (TEXMiN) Sign MoU to Collaborate on Assessing Gravitational Energy Storage in India’s Underground Mines
October 14, 2025
Hyderabad, India – Green Gravity, a leading innovator in gravitational energy storage technologies, has signed a Memorandum of Understanding (MoU) with TEXMiN, The Technology Translation Research Park, DST, GoI established at Indian Institute of Technology (Indian School of Mines), Dhanbad, to explore the potential of deploying gravitational energy storage systems in India’s vast network of underground mines.
Green Gravity and Wollongong Resources finalise deal for gravity storage trials at Russell Vale mine
September 19, 2025
Green Gravity and Wollongong Resources have executed a binding agreement to deploy gravitational energy storage trials at the Russell Vale mine.
Green Gravity and Wollongong City Council sign MOU to accelerate clean energy innovation in the Illawarra
September 11, 2025
Green Gravity and Wollongong City Council have signed a Memorandum of Understanding (MOU) that establishes a strategic collaboration to advance renewable energy storage and decarbonisation outcomes across the region.
Our technology provides low-cost, flexible and ultra-green energy storage.
Circular
Driving circular economic value by reusing old mine shafts to support green energy.
Flexible
Provides short or mid duration storage or grid ancillary services.
Sustainable
Low noise, small land use, no water, chemicals, or destruction of farmland. Our technology can be fully recycled, unlike battery options.
Local
Locally sourced materials, supply chain and workforce create economic value in the local community.
Low-Cost
Offering attractive economics due to reuse of infrastructure, high efficiency, low operating and maintenance costs and long life of the asset.
Long Life
Our system does not degrade, meaning we invest once to match long run energy security needs, avoiding the costly performance degradation of batteries.
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