We store your energy

Low cost thermodynamic energy storage

Wind farm

Our Technology

We store your solar and wind energy on site and above-ground for a 24/7 uninterrupted service using our MW-scale thermodynamic energy storage modules. We use electricity to power a heat pump and store the heat at 500°C (932°F) in low cost materials. The heat pump then becomes a heat engine to convert the heat back into electricity when it's needed.


70% roundtrip efficiency

Our team invented a radically new way to perform the compression and decompression of gases. Get in touch for more information on our technology.


100% safe & recyclable

The Airthium units are 100% recyclable and safe. We do not use toxic, explosive or otherwise harmful materials to ensure the safety of your installation.


25 years life-cycle

We carefully engineered our units to minimize the amount of mechanical moving parts. Our systems are designed with reliability and durability in mind.


0.05 €/kWh LCOS for units > 1MW

Airthium units costs drastically less than every other energy storage solution for installations starting at 1MW and up to gigawatt scale.

Imagine a world without diesel or coal
Solar plant

Our Company

Airthium was co-founded in May 2016 by Andreï Klochko and Dimitri Botvitch. The company won numerous prizes including Prix Gérondeau by Zodiac Aerospace 2014, Prix des innovateurs by ArcelorMittal 2016 and the Concours Mondial de l'innovation 2016 organized by the French government.

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Logo Concours mondial de l'innovation
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Portrait Andreï Klochko
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Andreï Klochkoclose

Engineering Master's degree and PhD in Plasma Physics from École polytechnique (2007-2014)

Andrei has a deep knowledge of general physics, mechanics (both solid and fluid), thermodynamics, and electromagnetic systems, as well as multiphysics modeling. He built the first Airthium prototype single-handedly.

Portrait Andreï Klochko
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Material Engineer

Léa Bataillouclose

PhD in Science and Engineering of Materials from INP Toulouse (2015-2019).

Léa is specialized in metallurgy and high temperature corrosion with both experimental and modelling approaches.

Portrait Simon Garnotel
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Multiphysics simulation engineer

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PhD in Applied Mathematics from Amiens University/Hospital research center

Expert in 3D Navier-stokes and fluid-structure interaction

Portrait Andreï Klochko
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Multiphysics simulation engineer

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Engineering Master's degree at Ecole Centrale (2010-2013), Master 2 in pure mathematics from Paris Diderot University

Houssam is currently a PhD student at Sorbonne University and Airthium.

Portrait Dimitri Botvitch
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Master in Business Law Paris X / SPSU St Petersbourg; Business development cursus @ Novancia

Dimitri has 7 years experience as fiscal/legal/management counsel for CEOs of Industry SMEs, with strong ties with Russian energy industry

Portrait Franck Lahaye
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Franck Lahayeclose

Previously Sales director EMEA at Intelsat, MSc in Management ICN 2008

The power of the sun and wind - stored in a bottle
Wind farm