Elestor's flow battery
Large-scale, long-duration, scalable and affordable
For a decarbonised future
where long-duration energy storage replaces the power plants of the past
Our technology
To enable a fully clean energy system
that unlocks the true potential of solar and wind energy
About ElestorThis is the Long Duration Energy Storage flow battery
The technology is affordable and easy to scale, which means we can speed up the spread of Elestor flow batteries to store large volumes of electricity over long durations.
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Find out why we dedicate our lives to a sustainable future and discover how we help shape a new, clean energy system that will improve everyone’s lives.
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Discover our technology
Explore how flow batteries work, how hydrogen and iron interact in our closed system, and why Elestor’s solution is better than rival technologies.
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Help us create long-term, affordable electricity storage solutions that will facilitate the transition away from fossil fuels to a new, clean energy system.
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Elestor’s Hydrogen-Iron Flow Batteries: Powering Europe’s Resilient and Sovereign Energy Future
In its Innovation News Network article from 15 July 2025, Elestor illustrates how its hydrogen‑iron flow batteries can deliver long‑duration, modular energy storage to bolster Europe’s grid stability and strategic autonomy. The story highlights the team’s use of abundant, safe materials and regulatory-aligned design to ensure rapid deployment at scale.
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Permissible technology
Why we find it easy to gain approval for our hydrogen-iron flow battery from both regulators and the general public
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Trouw: "A full battery tank can bridge the dunkelflaute"
Vincent Dekker interviews Elestor about their breakthrough in hydrogen-iron flow batteries, designed to power entire neighborhoods through sunless, windless days at a fraction of the cost of traditional solutions.
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