HACE | Decarbonized Wave Turbines – Ultra-Low-Carbon Energy

<2g CO₂/kWh

(compared to 25g for offshore wind power)

<2€/kg H₂ green

Truly competitive green hydrogen.

100% recyclable steel

No concrete foundation

Consistent energy production

Designed for grid connection and storage

What they say about HACE

“We are supporting HACE towards large-scale industrialization.”

juillet 2025

🌊

Waves push water up into the columns, compressing air in an upper chamber.

💨

The compressed air powers a one-way turbine, isolated from seawater to prevent corrosion.

⚡

Power is delivered to the grid or converted into green hydrogen.

🧱

The entire system is modular, concrete-free, and made of recyclable steel.

Lauréat FSF 2025

Lauréat Booster Hydrogène Innovation 2024

Lauréat 2024

Finaliste 2021

1er prix 2020

Prix d'excellence 2019 et 2020

1er prix de l'innovation 2019

Lauréat 2018

Lauréat 2017

Membre fondateur

1/2 finaliste 2015 et 2018

Lauréat 2015

No impact on coastal views

Under 3 meters above the surface

Offshore or nearshore, HACE systems stay out of sight and protect natural views.

Gentle on ocean floors

No drilling, no concrete.

HACE technology requires no drilling for offshore installation, preserving the seabed and protecting marine biodiversity.

Acts as a marine floor sanctuary

And supports ecosystem regeneration

With intelligent anchoring, HACE power stations foster underwater biodiversity and help rebuild natural fish feeding grounds.

Trusted by local fishing communities

A new stream of income for fishing communities

Designed for easy maintenance by any sea-based workforce, thanks to its modular and accessible build.

Cost-effective green hydrogen(<2€/kg)

When coupled with electrolysis, HACE enables large-scale, stable, and decentralized green hydrogen production.
Ideal for industrial sites, port areas, and logistics hubs.

Network stability solution

Unlike solar and wind, HACE produces energy day and night. It smooths out peaks and powers areas affected by intermittency.
The perfect complement to the renewable energy mix.

Energy autonomy for islands & remote areas

Easy to deploy with no heavy infrastructure, HACE offers a local alternative to diesel and generators.
Less dependency, less pollution, more sovereignty.

Smart ports & coastal cities

Local decarbonized production, H₂ storage potential, smart grid integration.
Compatible with existing infrastructure, with zero visual impact.

“The ease of deploying HACE’s technology is a major advantage. With its modular and adaptable design, installation is fast and efficient. Moreover, AMS recently announced plans to convert its fleet to hydrogen fuel — and that’s where HACE plays a key role.”

Rodolphe Bodineau

Director at Atlantique Maritime Services

“HACE offers several key advantages. First, its low-carbon electricity can power hatcheries and fish tanks, supporting more sustainable management of our marine resources.
Additionally, HACE provides an opportunity for fishermen—after proper training—to expand their skills into local offshore operations, such as maintaining HACE systems at sea.”

Grégory Métayer

Président du Comité
Départemental des Pêches Maritimes et Elevages Marins des Côtes d’Armor

“De l'électricité a été produite grâce à la technologie houlomotrice HACE et ce même lors d'une houle trèsfaible. L'essai semble prometteur pour cette première phase."

Aurore Junca-Laplace

Cheffe de service
adjointe Délégation mer et littoral à la Direction
Départementale des Territoires et de la Mer de Loire-
Atlantique (DDTM44)- Préfecture de la Loire-Atlantique

- FAQ ?

Frequently asked questions

Thanks to its modular system and wave segmentation design, the HACE wave converter offers numerous advantages.

Does HACE require well-formed waves to operate?
HACE operates with all types of waves—even chaotic ones—by pressurizing air chambers that drive high-efficiency unidirectional turbines (>91%). The wave is effectively "pixelated," allowing maximum energy extraction.
Does HACE need strong swells to work?
HACE covers a wide wave spectrum, from 10 cm to 3 meters and beyond.
It can be installed anywhere: onshore, nearshore, or offshore.
It withstands extreme conditions, including rogue and cyclonic waves.
How environmentally friendly is the HACE system?
With a low profile on the water (<3m), the structure doesn’t affect the landscape.
Modules can also serve as breakwaters or floating docks while generating energy.
HACE also contributes to preserving marine habitats.
Can this energy be fed directly into the grid?
Yes. The output is steady and highly predictable, enabling:
● direct grid integration without complex storage systems,
● natural complementarity with solar (nighttime production).
Has HACE undergone real-world testing?
Yes.
✅ Successful sea trials conducted in Saint-Nazaire.
✅ Full-scale turbine completed.
✅ Public demonstrator scheduled for September 10, 2025, in Marseille, with Bouygues Énergies & Services.

Contact

We’re available to explore your infrastructure project together.

Address

Technopole Montesquieu
1 Allée Jean Rostand
33650 Martillac FRANCE

Jean-Luc Stanek

Founder in 2013Since 2017 Jean-Luc is fully dedicated to Hace's development. Ex Santé Navale, ex IAE, he has a solid background in science and innovation.

Christian Pages

Former R&D manager of Airbus

Hervé Suty

From 2015, he is CEO of Capburdy providing key equipment through his company Tergys. Tergys technology involves HACE technology as energy supplier.

Bernard Roussely

X CTO cyber sécurity agency C3 OTAN / Ex General Manager of a testing Launcher centre

Pierre Doutreloux

Pierre is CEO of 100% Concious and Vegeplast. Pierre is supporting HACE developpement mainly in South Africa where he has settled his activities.

Jean-Luc Barou

CEO innovation ENSAM Bx, European expert in Materials résistance

Denis Pascal

CEO SON NAY

The Power of the Sea

The Power of the Sea

The Power of the Sea

An award-winning French innovation

What they say about HACE

A simple, robust, and concrete-free technology

Honors & Achievements

Demonstrated public acceptance

Frequently asked questions

Does HACE require well-formed waves to operate?

HACE operates with all types of waves—even chaotic ones—by pressurizing air chambers that drive high-efficiency unidirectional turbines (>91%). The wave is effectively "pixelated," allowing maximum energy extraction.

Does HACE need strong swells to work?

HACE covers a wide wave spectrum, from 10 cm to 3 meters and beyond.
It can be installed anywhere: onshore, nearshore, or offshore.
It withstands extreme conditions, including rogue and cyclonic waves.

How environmentally friendly is the HACE system?

With a low profile on the water (<3m), the structure doesn’t affect the landscape.
Modules can also serve as breakwaters or floating docks while generating energy.
HACE also contributes to preserving marine habitats.

Can this energy be fed directly into the grid?

Yes. The output is steady and highly predictable, enabling:
● direct grid integration without complex storage systems,
● natural complementarity with solar (nighttime production).

Has HACE undergone real-world testing?

Yes.
✅ Successful sea trials conducted in Saint-Nazaire.
✅ Full-scale turbine completed.
✅ Public demonstrator scheduled for September 10, 2025, in Marseille, with Bouygues Énergies & Services.

Address

Frequently asked questions

Does HACE require well-formed waves to operate?

HACE operates with all types of waves—even chaotic ones—by pressurizing air chambers that drive high-efficiency unidirectional turbines (>91%). The wave is effectively "pixelated," allowing maximum energy extraction.

Does HACE need strong swells to work?

HACE covers a wide wave spectrum, from 10 cm to 3 meters and beyond.It can be installed anywhere: onshore, nearshore, or offshore.It withstands extreme conditions, including rogue and cyclonic waves.

How environmentally friendly is the HACE system?

With a low profile on the water (<3m), the structure doesn’t affect the landscape.Modules can also serve as breakwaters or floating docks while generating energy.HACE also contributes to preserving marine habitats.

Can this energy be fed directly into the grid?

Yes. The output is steady and highly predictable, enabling:● direct grid integration without complex storage systems,● natural complementarity with solar (nighttime production).

Has HACE undergone real-world testing?

Yes.✅ Successful sea trials conducted in Saint-Nazaire.✅ Full-scale turbine completed.✅ Public demonstrator scheduled for September 10, 2025, in Marseille, with Bouygues Énergies & Services.

Address

HACE covers a wide wave spectrum, from 10 cm to 3 meters and beyond.
It can be installed anywhere: onshore, nearshore, or offshore.
It withstands extreme conditions, including rogue and cyclonic waves.

With a low profile on the water (<3m), the structure doesn’t affect the landscape.
Modules can also serve as breakwaters or floating docks while generating energy.
HACE also contributes to preserving marine habitats.

Yes. The output is steady and highly predictable, enabling:
● direct grid integration without complex storage systems,
● natural complementarity with solar (nighttime production).

Yes.
✅ Successful sea trials conducted in Saint-Nazaire.
✅ Full-scale turbine completed.
✅ Public demonstrator scheduled for September 10, 2025, in Marseille, with Bouygues Énergies & Services.