The Hybrid Sailing Experience
Unveiled at La Grande-Motte Multihull Show
April 23-27, 2025
At the 2025 International Multihull Show in La Grande-Motte, we officially unveiled JOOOL : the next-generation hybrid propulsion and smart energy management system for sailing yachts.
Born from 28 years of expertise at Alternatives Energies, JOOOL is more than a new product—it’s a complete, integrated, and scalable solution for shipyards and sailing professionals ready to move into a smarter, more sustainable future.
A new standard
The Hybrid Sailing Experience.
JOOOL offers a new approach to sailing ; more autonomous, quieter, and energy-efficient. By intelligently managing all onboard energy sources : solar, hydrogeneration, batteries, and genset, the system ensures optimal use of power throughout your journey. Combined with silent electric propulsion and high-capacity storage, it brings greater comfort, smoother navigation, and true self-sufficiency at sea.
Two Hybrid Catamarans, Two Perspectives
Among the vessels equipped with JOOOL systems at the International Multihull Show, two stood out for their vision of what hybrid sailing can be.
Leopard 46
Award-Winning Bluewater Hybrid
We congratulate Leopard Catamarans on the Leopard 46 being named Multihull of the Year 2025, a well-deserved recognition of their expertise in naval architecture, build quality, and attention to onboard comfort.
We’re proud that this model also features JOOOL’s hybrid energy system. Our solution combines two OneBox AC, two 25kW electric propulsion pods, two 27kWh lithium iron phosphate batteries pack, solar panels, and a range-extending generator. It brings a new level of energy autonomy on board, with silent propulsion, real-time energy management, and hydrogeneration capabilities starting from 6 knots.
On the Leopard 46 Hybrid, this system integrates discreetly, supporting the boat’s performance and onboard comfort without changing its original spirit. It’s a great example of how hybrid technology can serve the needs of modern cruisers — simply and effectively.
SAMBA Catamaran
World First – Large-Scale Hybrid Catamaran
Unveiled this year at the International Multihull Show in La Grande-Motte, Samba marked a significant step forward for high-capacity hybrid catamarans, standing out as one of the most notable innovations at the show. Designed by Day 1 Catamarans and operated by AMC Catamaran in Marseille, this 23.80-meter vessel can welcome up to 180 passengers.
JOOOL proudly contributed by designing and integrating the vessel’s complete hybrid propulsion and energy system, combining sail power, combustion engine, and electric drive. This configuration allows for smoother operation, reduced noise during maneuvers, and greater energy efficiency across a variety of sailing conditions.
Equipping a commercial vessel of this size with our system represents an important milestone for JOOOL. It demonstrates the flexibility of our hybrid architecture : scalable not only for private yachts, but also for high-capacity vessels operating on a daily basis.
Next Rendezvous
The International Multihull Show in La Grande-Motte was the first public appearance of the JOOOL brand, and an opportunity to present a solution built on 28 years of expertise in marine energy systems.
Throughout the show, we had valuable discussions with shipyards, designers, and operators who share the need for scalable, integrated, and reliable hybrid solutions. The interest and feedback received confirm the relevance of our approach and its potential across a wide range of projects.
We’ll be at the Cannes Yachting Festival this September and look forward to continuing those conversations with shipbuilders looking to bring more comfort, autonomy, control, and simplicity to their next-generation vessels.
