Electric Inboard Motor

The ePropulsion H-100 electric motor is designed for large motors boats and sailing yachts. Its 100 kW motor will power a wide range of commercial and leisure vessels up to 200 tons. Ideal boat length overall is between 18 to 30 metres (60’ to 100’) length overall.  

Why the H-100 electric motor?

The H-100 electric motor is clean and much kinder to the environment. It delivers less noise and absolutely no exhaust fumes or fuel spills into the ocean.

Created with innovate permanent magnet technology the H100 provides new options for naval architects and boat owners. It’s modular design means it can have extended range, with many installation and long term benefits.

For each boat project the batteries and control systems can be customised for specific requirements. As a result, it is highly suitable electric motor solution for OEMs, boat builders and architects working on larger boats.

Key benefits of the H-100 electric motor

Modular design

The modular system design offers a complete solution for a wide selection of boats of different sizes, weights and design.  The power and range required for each boat can be increased by adding motors, batteries and controllers.

Space saving

Measuring just 443 x 315mm, the H100’s compact size is about half the size of an equivalent diesel engine. This frees up more space for additional motors. Alternatively, there’s extra capacity for more storage, passengers or living areas.


Weighing just 190kg in comparison it’s about about two thirds lighter than a diesel engine of similar capacity. Due to its smaller size and weight, payload is reduced and there’s more flexibility for installation purposes.

This is achieved using ePropulsion’s flat wire cable design to increase the slot fill rate by 25%, which in turn enhances the power density.

Permanent magnet motor technology

This pioneering technology achieves 2000Nm maximum torque. Additionally, the relatively small electric motor can deliver an impressive 96% efficiency rate. Significantly, this is much higher than a typical 100 kW AC (asynchronous) motor.  

The permanent magnet motor also has considerably lower engine noise and vibrations. So creating a much nicer on board boating experience for your crew or passengers.

Suitable for wide range of boats

Designed for larger leisure craft and commercial vessels (60-100m) the H100 is suitable for a wide range of boats including:

• Large sailing yachts & catamarans
• Motor yachts & powerboats
• Commercial workboats
• Passenger ferries & trip boats
• Inland leisure cruisers & canal boats

The drive system can be straight to the propellor, a stern drive, a sail drive or an Azimuth thruster.