Our history
All three engineers by training, passionate about nautical mobility and new technologies, we decided, at the end of our studies, to embark on electric motorization to decarbonize the sector.
background
Weenav:
The birth of a project
Mobility is responsible for a large part of the world's greenhouse gas emissions, whether from land vehicles or the aviation sector. But what about boating, which is responsible for 3% of global emissions? This is where Weenav comes in.
2021 - The beginnings of the project
At the end of 2021, we wanted to put our expertise in Intelligent Electric Vehicles and Information Technologies at the service of the decarbonization of mobility. Recognizing that boating contributes to these emissions, our objective was to green existing fleets and make this activity more virtuous.
April 2022 - Creation of Weenav
“Weenav”: a simple name but full of meaning. Some people interpret it as “We are sailing electrically.” Like any great adventure, our story began humbly in a garage.
December 2022 - Finalization of our prototype
On December 27, 2022, on a beautiful sunny morning, we carried out our first tests in real conditions, in the English Channel. Yes, it is in Hauts-de-France that this project was born.
Our 6.5m boat, a 1992 FourWinns 195 sundowner, originally equipped with a 175 hp outboard motor, was converted to 100% electric with a 100 hp (73 kW) motor and 54 kWh of batteries. She then sailed the entire summer season in the Mediterranean Sea.
Our 6.5m boat, a 1992 FourWinns 195 sundowner, originally equipped with a 175 hp outboard motor, was converted to 100% electric with a 100 hp (73 kW) motor and 54 kWh of batteries. She then sailed the entire summer season in the Mediterranean Sea.
2023 - From CES Las Vegas to Fundraising
The year 2023 was marked by intense commercial development, notable events and highlights, such as our participation in CES in Las Vegas and our fundraising.
These successes, accompanied by our presence in various exhibitions and media, allowed us to aim, at the end of 2023, for a pioneer position in Europe in high-powered 100% electric motorization for boats.
These successes, accompanied by our presence in various exhibitions and media, allowed us to aim, at the end of 2023, for a pioneer position in Europe in high-powered 100% electric motorization for boats.
2024 - Industrialization
The year 2024 marks our transition from an artisanal process to industrial production. We are launching our two flagship products: the ARION inboard and KRONOS outboard engines, accompanied by our new, more striking graphic identity.
Evolution of our electric motors: the main steps
From the first prototype to a robust and reliable engine
Prototyping
We started with a combustion outboard engine, which we decided to electrify. To do this, we removed the thermal power head and adapted our electrical system to the existing thermal base.
Use of unused space for battery storage.
Preservation of the forward and reverse gears, as well as the mechanical cooling pump.
Constraints encountered
Adapting to a conventional thermal base revealed certain weaknesses.
Adaptation difficulties: Each base is different.
Premature mechanical degradation
Electric motors have much higher torque than internal combustion engines.
Optimization and robustness
The various stages of our development have led us to reliable and robust engines.
Development of our own base
Resistance to high electrical torques
Optimization of performance, tightness and reliability.
Follow our evolution
What the future holds
Job creation in electric mobility
The evolution of electric mobility requires precise expertise. We are committed to creating jobs in these key skills.
European Leader Objective
Our ambition is to become a leading player in Europe in 100% electric high-power motorization.
Decarbonization objective
We are eager to contribute to the reduction of greenhouse gases in the nautical sector.
Need more information?
A technical question, missing information, or a simple curiosity?
What is the energy efficiency of an electric motor?
The energy efficiency of an electric motor is very high, around 90% and up to 97%. This means that this percentage of the electrical energy consumed is transformed into mechanical work, with a relatively low loss of energy in the form of heat. In comparison, heat engines have a much lower efficiency, generally between 20% and 30%, with more of the energy dissipated in the form of heat instead of being used to propel the boat.
Are electric boat motors reliable?
Electric boat motors are very reliable because of their simplified design: they have around 100 times fewer moving parts than a combustion engine, which reduces wear and requires less maintenance. They have no translational parts, only rotating parts, which significantly reduces wear.
How do you install an electric motor on a boat?
The installation of the electric motor is taken care of in the project estimate. We collaborate with numerous shipyards to equip your boat either directly in your usual yard, or in the one closest to your home port, thus ensuring an efficient and professional installation. So you don't have to worry about installing your equipment.
How much does an electric boat motor cost?
The price of the engine varies according to the power you want for your boat as well as the type of engine.
For an inboard motor, the prices according to power are as follows:
100 hp: 36,500€ TTC
200 hp: 54,900€ TTC
500 hp: 89,900€ TTC
For outboard engines, the prices are as follows:
80 ch: €39,900
110 hp: €46,900
180 hp: 63,200€
200 hp: 67,900€
The prices listed here do not include batteries.
For an inboard motor, the prices according to power are as follows:
100 hp: 36,500€ TTC
200 hp: 54,900€ TTC
500 hp: 89,900€ TTC
For outboard engines, the prices are as follows:
80 ch: €39,900
110 hp: €46,900
180 hp: 63,200€
200 hp: 67,900€
The prices listed here do not include batteries.
How do electric motors reduce CO2 emissions?
Electric motors reduce CO2 emissions by completely eliminating the greenhouse gas emissions associated with the combustion of fossil fuels. By using electricity, which is often produced from renewable sources, they minimize their overall environmental impact. Thus, electric motors play a crucial role in the transition to more sustainable and climate-friendly navigation.
Do you have more questions?
Become an expert on electric motorization by browsing our FAQ.