HACE (Hydro Air Concept Energie) develops wave energy technology that turns the power of swell into clean, low-carbon electricity.

Our founding principle: generating even in very low swell, where other technologies need strong seas. That is what makes continuous marine energy possible for coastlines and islands, in service of their energy sovereignty.

We build on a proven lineage. The oscillating water column has been grid-connected for over ten years at Mutriku; HACE evolves it into a floating system with a compression chamber, able to generate across a wide range of sea states, down to very low swell. Our first prototype was deployed in 2018; in 2024, our V2 demonstrated, on measured data, turbines spinning in under 10 cm of swell. The same energy can feed a green hydrogen stream, a storable and transportable carrier.

Our path is recognised by the ecosystem. HACE received the 2026 Innovation Team Best Practices award from the Club de Paris des Directeurs de l'Innovation, and the Golden Hydrogen award for its green hydrogen work. A ZESTAS member, our multidisciplinary team has been at work for more than twelve years, backed by committed investors and partners.

Based in Martillac, France, we are building a marine energy infrastructure designed to last: independence from imported energy, grid stability, fresh water through desalination, coexistence with the marine environment, and locally rooted jobs and skills.

Tomorrow, coastlines and islands will draw part of their electricity from swell. The first grid connections worldwide already show it. We are working to make it usable even when the sea is calm.

Follow this page for our progress. For investor and partner discussions, contact us directly.

Hace

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Hace

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