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Our Story

Green Gravity is enabling the global renewable energy transition through developing the next generation of ultra-green energy storage technology.

Why we’re here

At Green Gravity, we develop, install and operate cutting edge gravitational energy storage systems. We aim to become the world's lowest cost and most sustainable provider of energy storage technology. Through our focus on the circular economy, we can lead the world in creating the future of energy from the legacy of mining.

What we stand for

WORKING TOGETHER FOR THE GREEN FUTURE

COntact Us

We support policy settings which encourage sustainable decarbonisation and the attainment of net zero global emissions by 2050. Through our investments and research, we contribute to the advancement of the United Nations Sustainable Development Goals.

Green Gravity, our stakeholders, customers and employees have a shared passion to combat climate change through economic development of innovative energy storage technology. We unlock an enormous opportunity to work together across the natural resources and energy sectors with the nature of our technology. Given the scale of these sectors, success can radically accelerate the world's renewable transition.

Green Gravity is committed to promoting access to affordable, reliable, sustainable and modern energy for all. We aim to be instrumental in achieving the global goal of universal access by 2030.

What we value

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Sustainability

Our team “gets it”, we don’t engage in politics and everyone in our team is passionate about our vision.

hand shake agreement green gravity

Leadership

We have a bias to action, are highly productive, delivery focused people and are diligent to deliver on our commitments. We are positive and reliable while we are humbly confident. Our people are genuine and dependable. Our team are networked which means we can draw on support. At the same time, we see partnership as critical to success.

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Innovation

Our team are technically strong, determined and intelligent. They are creative, using a digital-first approach to be highly innovative. We are hungry for more and approach things with a sense of urgency. We are learners which means we can fail on the path to success.

What makes us different

Three key differences position Green Gravity for success in the rapidly changing energy storage market

Circular economy

The Green Gravity gravitational energy storage technology accesses disused mine shafts as the primary source of vertical height. The most important parts of our technology, the vertical height to enable gravity storage and the infrastructure required to access it, are sourced from reusing the surplus mining asset.

Breakthrough LCOS

Our market leading levelised cost is underpinned by long equipment life and the absence of capital spend on constructing a vertical building. Where a utility will have to continually replace chemical storage cells, a Green Gravity gravitational storage centre needs only be built once and it will match the life of the power generating asset.

Simplicity

Our technology is fundamentally simple. Lifting and moving heavy objects is a challenge overcome in the mining and manufacturing sectors every day. The technology for regenerative motors, allowing Green Gravity to generate electricity on demand is well proven and used extensively around the world.

Our Awards

Our Leadership Team

Mark Swinnerton

Chief Executive Officer

Mark is the Founder and Chief Executive Officer of Green Gravity...

Mark is the Founder and Chief Executive Officer of Green Gravity. Mark has over 25 years of global experience in the mining, metals, manufacturing and logistics sectors. Having held executive level roles across operations and commercial functions at BHP, Mark has a proven track record of strategic and change leadership, alongside financial, commercial and stakeholder management.

Naz Asker

Naz Asker

Head of Business Capability

Naz is a Senior Leader with over 25 years in the conventional...

Naz is a Senior Leader with over 25 years in the conventional, unconventional, upstream and downstream oil and gas, petrochemical, and coal mining sectors across Australia, USA and the UK. Naz is highly accomplished in leading multi-discipline and multi-cultural departments for Tier 1 Owner organisations (BHP, BP, QGC/BG and Origin Energy), operating across Production, Planning and Optimisation, Project Services, Integrated Operations, and CSG Exploration and Appraisal Programs.

Fionna Millikan

Head of Business Development

Fionna has over 20 years of experience in the mining...

Fionna has over 20 years of experience in the mining industry covering both corporate functions and the operating assets. Involved in many of the industry’s high profile growth projects, her experience includes iron ore expansion projects, establishing integrated remote operating centers across multiple commodities, corporate strategy / technology strategy development and the design and execution of business planning processes.

John Whaley

Head of Finance

John has more than 30 years’ experience spread across...

John has more than 30 years’ experience spread across investment banking and energy sectors. He has held advisory positions within the oil and gas and electricity sectors working on major contracts and project developments. He was at the forefront of development of the coal bed methane industry as commercial advisor to CH4 in Queensland, becoming interim CFO prior to CH4’s IPO.

Frank Soto

Head of Product Development

Frank is an engineering leader across manufacturing, heavy industry and the resource sectors.

Having founded and led the SOTO Group for 26 years, Frank brings executive expertise in managing complex and sector-relevant engineering. With 30 years in the sector, Frank has held roles with multiple Australian blue chips responsible for all phases of heavy infrastructure project development.

Ryan Howe

Program Director

Ryan is a highly accomplished project delivery and executive leader, with an extensive background...

Ryan is a highly accomplished project delivery and executive leader, with an extensive background successfully leading multi-disciplined teams to deliver effective solutions for complex challenges whilst guiding businesses in operational governance, strategic direction, business transformation, and cross functional leader collaboration. 

Ben Clarke

Chief of Staff

Ben is a leader with 25 years operational experience in the mining industry.

Working across multiple commodities and legislative jurisdictions, Ben has held Manager and General Manager positions for BHP across its Mine, Port and Rail Operations. Post his operational leader postings, Ben undertook national leadership roles in the Health & Safety function for BHP Australia.

Our Partners

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Radically accelerating the world’s renewable transition

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Copyright © 2025 Green Gravity Energy Pty. Ltd. All rights reserved.
  • Company
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