​AJ Lucas Services and Sage Geosystems have partnered in Australia to provide an innovative alternative for long-duration energy storage (LDES) and geothermal energy.

 

About Sage Geosystems

Sage is a leading player in the US energy storage and geothermal sectors, using advanced oil and gas technology to unlock cost-effective LDES projects with minimal environmental impact. Its technology can be installed using existing transmission infrastructure and is suitable just about anywhere.

About Earthstore™

Earthstore™ is a breakthrough green, long-duration energy storage solution that is significantly more affordable than lithium-ion batteries and large pumped hydro facilities. Its versatile and modular nature means that it can be installed almost anywhere in a variety of sizes.  In comparison to other renewable generation solutions, it has a very small environmental footprint.

 

Earthstore™ technology mirrors traditional pumped hydro energy's mechanical storage mechanism without needing extensive dams or civil works. By employing conventional drilling techniques, it efficiently pumps water into subsurface formations to store energy, making it an attractive solution for integrating renewable energy sources like wind and solar into the power grid 24 hours a day. Earthstore’sTM modular systems convert subsurface rock layers into energy storage reservoirs for large-scale renewable integration and efficient grid management.

 

As the transition to a zero-carbon electric grid accelerates, the demand for robust, long-duration energy storage is critical, and Earthstore™ is poised to meet this challenge effectively. With a supply chain already in place, Earthstore™ is commercially available to deploy now.​​

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How It Works

 

1. Energy Storage: Water is pumped up to 5 km underground using excess renewable energy from wind and solar during low-demand periods.
    

2. Energy Release: Pressurised water is released during peak demand to drive a Pelton turbine.
    

3. Energy Generation: Electricity is generated through the mechanical movement of the Pelton turbine in periods of 8+, 10+ or 12+ hours (depending on the size of the facility).

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Products

 

1. Earthstore™: A mechanical pumped storage solution that utilises the subsurface as the battery through the application of geo-pressure.
    

2. Geothermal Enhancement: If the water is heated geothermally, it can undergo additional processing through a patented CO2 heat exchanger, effectively doubling the energy extraction.

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Project Phases

 

We will implement our first project in three phases:

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1. Drill a well to demonstrate generation and storage cycles.

2. Attach a Pelton turbine and generator for electricity generation.

3. Scale up development with modular pods optimised at various capacities (24, 48, 80, 100–200 MW).

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Our Partners

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We are partnering with:

• Utility companies

• Wind and solar farms

• Critical infrastructure (hospitals, universities, data centres).

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Interested in implementing an Earthstore™ battery for one of your projects? 

 

Contact us on info@ajlucas.com.au

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Upcoming Projects

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Stay tuned for exciting updates on our joint projects in Australia that aim to reshape the future of LDES.

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Learn more about Sage's revolutionary energy storage technologies through their video and at sagegeosystems.com.