Green Gravity has signed a Memorandum of Understanding (MoU) with the Indian Institute of Technology Indian School of Mines (IIT ISM), Dhanbad, on 17 September 2025. The agreement focuses on exploring the deployment of gravitational energy storage across legacy mining sites in India.
The MoU was signed in the presence of Sukumar Mishra, Director of IIT ISM, and Dheeraj Kumar, Deputy Director. The partnership is aimed at applying gravity-based energy storage technologies in mine rehabilitation and energy transition projects.
Green Gravity’s technology uses vertically moving heavy weights in legacy mine shafts to store and release gravitational potential energy. According to the company, this system is designed to provide long operational life and lower costs while reusing existing mining infrastructure.
The collaboration is supported by the Australia-India RISE Accelerator programme, delivered by CSIRO and Atal Innovation Mission. The initiative connects startups with Indian institutes to accelerate cross-border market entry and technology validation. It also offers workshops, market immersion, and support for piloting renewable energy solutions in India.
Green Gravity stated that the partnership will leverage IIT ISM’s expertise in mining and innovation networks between India and Australia to enable the repurposing of abandoned mine shafts for energy storage.
Green Gravity is an Australian renewable energy company developing gravitational energy storage solutions. Its systems are intended to utilise legacy mining infrastructure to provide long-duration energy storage for renewable integration.
