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    Alsym Energy–ERITY 9 GWh sodium-ion deal: microgrid design notes for mine sites

    July 15, 2026|

    Reviewed by Joe Ashwell

    Alsym Energy–ERITY 9 GWh sodium-ion deal: microgrid design notes for mine sites

    First reported on MINING.com

    30 Second Briefing

    Alsym Energy and Australian mining services firm ERITY have signed a 9 GWh strategic partnership, billed as the largest sodium-ion battery agreement in global mining, to deploy BESS for microgrids, critical mineral extraction and AI-powered mobile data centres. The deal forms part of 18 GWh of Alsym’s announced deployments in two months, including 8.5 GWh with ESS and 500 MWh with Juniper Energy, with adopters such as Resource Mineral International and Volt Resources. Sodium-ion’s non-flammable, thermally stable chemistry targets diesel displacement and off-grid power resilience at remote mine sites.

    Technical Brief

    • Partnership scope is framed as the “largest known” sodium-ion battery agreement in global mining.
    • Framework covers BESS deployment for microgrids, critical mineral processing loads and AI-driven mobile data centre clusters.
    • Sodium-ion chemistry is described as non-flammable with lower thermal runaway risk than lithium-ion systems.
    • Alsym’s technology is positioned against CATL’s commercial sodium-ion roll-out, signalling multiple large-scale suppliers in this chemistry.
    • ERITY contributes operational mining expertise in remote Australian sites with limited grid access and high energy intensity.
    • Alsym reports 18 GWh of commercial deployment agreements in two months, including 8.5 GWh with ESS.
    • A further 500 MWh agreement with Juniper Energy targets grid-scale and industrial storage beyond mining applications.
    • Publicly listed Resource Mineral International and Volt Resources are early adopters under Alsym’s current commercial agreements.

    Our Take

    With 9 GWh earmarked for mining plus prior 8.5 GWh and 500 MWh agreements with ESS and Juniper Energy, Alsym Energy is quietly building a multi-segment stationary storage book that could give miners comfort on long-term supply rather than relying on early-stage sodium-ion vendors.

    The reference to a planned plant supplying up to 10% of global gallium, alongside aluminium and other specialty minerals, signals that sodium-ion adoption in mining will be closely tied to upstream control of niche inputs, not just sodium and conventional battery metals.

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    Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.

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