Lexicon

An inboard motor is installed inside the boat's hull. This type of engine is often preferred for larger vessels or boats that require better weight distribution. The motor is coupled to a propeller shaft that propels the boat. At Weenav, the ARION model is an example of an electric inboard motor, designed to be robust and quiet.

The knot is the standard unit of measurement of speed in maritime navigation, equivalent to 1.852 km/h. Weenav's electric motors, like the KRONOS, make it possible to reach significant speeds while ensuring silent and vibration-free navigation, which is ideal for sailing at speeds of up to 70 knots in optimal conditions. Using electric motors offers not only a smooth sailing experience but also more environmentally friendly.

Low Emission Zones (LEZs) are geographic areas in which traffic is restricted for polluting vehicles in order to reduce air pollution. For navigation, this means that only boats with engines that meet certain emission standards, such as electric motors, are allowed in these areas. The adoption of cleaner propulsion solutions allows access to these ZFEs without restrictions.

Marine compliance (CM) includes standards specific to equipment used in a maritime environment. These standards ensure that marine engines, propulsion systems, and other components meet marine safety, durability, and performance requirements, including extreme ocean conditions, exposure to salt water, and weather resistance.

Marine pollution includes any degradation of the marine environment due to chemical substances, waste or fuels. Thermal engines can contribute to this pollution by discharging hydrocarbons into the water. The use of electric motors helps to maintain the quality of marine waters by reducing the risks of leaks and polluting emissions.

The nautical mile, which corresponds to 1.852 km, is the unit used to measure distances travelled at sea. It is crucial for evaluating the autonomy of a boat. For example, a Weenav electric motor like the KRONOS can allow a boat to travel up to 100nm on a full battery charge. Optimizing autonomy thanks to Weenav electrical systems is essential for long crossings, especially in inland waters or at sea.

Noise pollution is caused by excessive noise that disrupts ecosystems, especially marine species. Thermal engines generate a lot of noise under water, which can disturb marine wildlife. Electric motors, on the other hand, work much quieter, thus considerably reducing this form of pollution.

An outboard motor is attached to the outside, at the back of the boat. It is compact and versatile, often used on small to medium sized boats. Outboard motors can be easier to maintain and replace than inboard motors. Weenav offers the KRONOS model, an electric outboard motor, efficient and adaptable for various types of navigation.

The PAMI (Plan d'Aide à la Modernization et à l'Innovation) is an aid program set up by the French government to support companies in the maritime and river sector in their modernization and technological innovation projects. This plan aims to encourage the adoption of more environmentally friendly technologies, such as electric motors, by offering grants or financial benefits to companies that invest in these solutions.

Profitability measures the relationship between the benefits generated by a project and the costs incurred to carry it out. In the context of electric boat motorization, profitability depends on the ability to reduce operating costs, such as energy consumption or maintenance, while increasing the efficiency of the boat. Solutions like electric motors are often seen as profitable in the long run due to lower fuel and maintenance costs.

Retrofitting is a process that consists in converting an existing thermal propulsion boat by integrating an electric motor. This transformation makes it possible to maintain the structure and the main characteristics of the boat while modernizing its mode of propulsion. The main benefit of retrofitting is the reduction of greenhouse gas emissions, which contributes directly to the fight against climate change. By replacing thermal engines with electrical solutions, we also improve energy efficiency, because electric motors are often more efficient in terms of efficiency and maintenance. Beyond the environmental benefits, retrofitting represents an economical solution for boat owners. Instead of completely replacing an obsolete ship, they can simply modernize the propulsion, which extends the life of the boat while complying with current environmental standards, which are becoming more and more stringent in the maritime sector. This process thus makes it possible to optimize long-term operating costs, by reducing fuel consumption and maintenance costs associated with internal combustion engines. In addition, retrofitting offers a reduction in noise and vibration, making navigation more pleasant and respectful of marine fauna. It is therefore a sustainable solution, both for the environment and for the maritime industry, which is in line with the sector's decarbonization trend, facilitating the transition to cleaner and renewable energies.

Le système de propulsion désigne l'ensemble des éléments qui permettent à un bateau de se déplacer. Pour Weenav, cela fait référence aux moteurs électriques, aux systèmes de gestion de l'énergie, et aux moyens de recharge. Ce système peut être conçu pour être totalement électrique ou hybride, en fonction des besoins du bateau et des usages prévus​.