Pioneering electric propulsion for boats
Clean, safe, reliable and state of the art electric propulsion solutions & systems for your boat.
Electric & hybrid systems for all types of uses
Oceanvolt provides advanced electric and hybrid propulsion systems for monohulls, multihulls, and commercial vessels, delivering silent, efficient, and eco-friendly power. Our integrated power management solutions ensure optimal energy use, extending range and enhancing performance for a smarter, cleaner boating experience.
Oceanvolt Systems
SD Saildrives
The Oceanvolt SD Saildrive series provides an efficient, quiet, and emission-free alternative to traditional diesel propulsion. Designed for monohulls and multihulls, the SD series delivers instant torque, silent operation, and seamless integration with existing mounting beds. Whether you’re upgrading your vessel or installing a new system, Oceanvolt’s electric saildrives offer a reliable and sustainable sailing experience.
The SD Saildrive series is part of Oceanvolt’s full electric propulsion ecosystem, including:
Propulsion battery packs & battery management systems
Shore power input & charger/inverter for flexible charging
Solar panels & solar chargers for extended range
Oceanvolt display & control systems for easy monitoring
6-15kW
ServoProp
The Oceanvolt ServoProp saildrive is the only controllable pitch saildrive on the market, offering unmatched efficiency in both electric propulsion and energy generation.
Its adjustable blade angles optimize forward thrust, reverse thrust, and hydrogeneration—making it the ultimate solution for long-range, sustainable cruising.
Whether you’re looking to reduce your carbon footprint, increase your boat’s range, or simply enjoy the silence of electric propulsion, the ServoProp is the most advanced saildrive available today.
10-15kW
25kW
ServoProp
The most powerful hydrogeneration on the market.
Powerful yet safe 48V system - Provides 25 kW of propulsion power while maintaining a safe 48V operating voltage, offering a balance of high performance, safety, and simplified maintenance.
Optimized design - Combines a high-efficiency saildrive with the most powerful hydrogenerator available. 360-degree rotating propeller blades optimized for both propulsion and energy generation.
Advanced hydrogeneration - The built-in hydrogeneration allows yachts to recharge batteries while sailing, reducing reliance on shore power or generators. Generates up to 5 kW at 10 knots, making it the most efficient system on the market.
Modular Electric Shaft Drive MotorsAXC Shaft Drives
The Oceanvolt AXC series is a modular, high-performance electric shaft drive propulsion system designed for larger, heavier displacement boats, including charter catamarans, non-planing motorboats, and cruising sailboats. With zero emissions, instant torque, and a safe 48V system, the AXC series offers a sustainable and powerful alternative to traditional marine propulsion.
The AXC series integrates seamlessly with Oceanvolt’s full electric ecosystem, including:
Propulsion battery packs and battery management systems
Shore power input and charger/inverter for flexible charging options
Solar panels & solar chargers for additional renewable energy sources
Oceanvolt display & control systems for monitoring and easy operation
Hydrogeneration
Sail. Regenerate. Repeat.
Oceanvolt makes self sufficiency possible.
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Hydrogeneration—also known as hydro-regeneration—is the process of generating electricity while sailing. By converting kinetic energy from a moving sailboat into electrical energy, this innovative feature allows sailors to charge their batteries simply by sailing. No fossil fuels. No noise. Just clean, renewable power from the sea.
With Oceanvolt’s cutting-edge electric propulsion systems, hydrogeneration is not just a possibility—it’s a built-in feature. Our systems turn your sailboat into a silent, self-sustaining vessel, dramatically reducing your environmental footprint.
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Oceanvolt electric motors come equipped with hydrogeneration capabilities. Activating the regeneration mode is as simple as pressing a button on your Oceanvolt display for five seconds. The system will then begin producing power based on your current boat speed, RPM, and battery status—fully visible in real time.
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Sustainable energy: Replace fossil-fuel generators with a clean, renewable alternative.
Self-sufficient cruising: Generate enough power to run all electronics and propulsion systems.
Silent operation: Enjoy the sound of the sea without engine noise.
Infinite range: Sail with wind and regenerate electricity as you go.
Hydrogeneration is especially effective for catamarans and twin-motor installations, offering double the generation capacity thanks to higher average speeds and dual drives.
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Hydrogeneration performance depends on sailing conditions. It’s most efficient when sailing upwind at a True Wind Angle (TWA) of 60–90 degrees. Smooth seas and steady wind help optimize output. While heavy waves or light wind may reduce performance, even moderate conditions can yield significant power generation.
To get the most out of hydrogeneration:
Maintain consistent boat speed
Trim sails effectively
Optimize heading for steady wind
Oceanvolt Technology
Main features of the AXC shaft drive
Modular power configurations - Available in 12kW, 24kW, and 36kW options, with peak power reaching up to 45kW, allowing for a scalable and adaptable shaft drive propulsion system.
Optimized for heavy displacement vessels - Designed specifically for charter catamarans, non-planing motorboats, and cruising sailboats, providing efficient and reliable propulsion for larger, heavier boats.
Integrated motor controller - The AXC motors come with an integrated controller, reducing the number of components needed and simplifying installation and system integration.
High torque & low RPM efficiency - Delivers full torque instantly, with a wide operational speed range of 920-1400 rpm, ensuring smooth and powerful propulsion at optimal efficiency.
Liquid-cooled system - Unlike air-cooled alternatives, the AXC series features liquid cooling, providing superior heat management and ensuring consistent performance even in demanding conditions.
Compatible with twin installations - Ideal for twin-motor configurations, making it a perfect choice for catamarans and other vessels requiring dual propulsion setups.
“Hybrid” can mean many different things, so what does an Oceanvolt hybrid system look like?
We configure our hybrid systems such that a 48 V DC generator is sized and supplied with the Oceanvolt electric propulsion motor. The generator (or ‘genset’) is linked directly to the battery bank and configured for automatic operation i.e. you turn on your electric motor and start motoring along, just on battery power. When the battery level drops to a specified level, e.g. 20%, the genset automatically switches on and charges up the batteries. Once the charge reaches a set threshold such as 80%, the genset automatically switches off, and you have continued motoring at the same speed, uninterrupted.
Typically, boats have AC gensets, because the majority of their electric consumption is house power, with regularly varying loads and voltages but there are a few reasons we recommend and supply DC gensets instead. Overall, a DC genset is much more efficient, reliable, robust and requires less maintenance than an AC genset. It also means faster charging. The reliability and efficiency factors come from the fact that DC gensets are not variable speed like their AC counterparts.
Explaining the Oceanvolt hybrid system
Oceanvolt Enquiries
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