Somerville, MA – March 17, 2026 – Form Energy, an American energy storage company, and FuturEnergy Ireland, a leading Irish clean energy developer, today announced an agreement to jointly deploy a 10 MW / 1,000 MWh iron-air battery system in the northwest of.
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All-in BESS projects now cost just $125/kWh as of October 2025 Battery storage has moved past its infancy, driven by rapid factory scale-up, fierce competition and oversupply that has pushed costs sharply down.
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In this Review, we describe BESTs being developed for grid-scale energy storage, including high-energy, aqueous, redox flow, high-temperature and gas batteries.
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The current cost of 2000-degree thermal batteries sits between $50-$150/kWh, but here's the kicker: When MIT's thermal battery prototype melted through a steel plate during testing (true story!), they realized containment materials alone could eat 40% of the budget.
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