At E-NAVSYSTEMS, we’re excited to introduce a groundbreaking advancement in electric propulsion designed specifically for larger sailing vessels: the Oceanvolt Servoprop 25 electric motor.
The next step in electric propulsion
Oceanvolt has long been known for delivering high-quality electric propulsion systems. The Servoprop 25 represents the latest innovation from this renowned Finnish company. Engineered for sailboats up to 70 feet or weighing up to 25 tons, this advanced electric propulsion system incorporates a variable-pitch propeller. This allows it to efficiently adapt to every sailing scenario—whether motoring, sailing, or hydrogenerating.

Powerful electric performance
The Servoprop 25 significantly advances the capabilities of electric motors by delivering 25 kW of power, equivalent to traditional diesel engines of approximately 60 to 70 horsepower. This increase in power greatly expands possibilities for electric propulsion on monohulls up to 60 feet and multihulls up to 70 feet, revolutionizing the way sailors approach sustainable cruising.

Exceptional variable-pitch propeller
One of the standout features of the Servoprop 25 is its variable-pitch propeller, which can be installed facing either forward or aft. Traditional saildrives have aft-facing propellers to allow for folding, which often reduces efficiency. In contrast, a forward-facing installation significantly enhances both propulsion efficiency and energy regeneration capabilities.
Equipped with this system, the Servoprop can generate impressive hydrogeneration rates:
- 1 kW at 6 knots
- 3 kW at 8 knots
- 5 kW at 10 knots

Safety-focused 48-Volt architecture
Oceanvolt deliberately chose to maintain a 48-volt system for safety reasons. While higher voltages could have increased performance, they introduce greater complexity and risk, especially onboard. By remaining at 48 volts, the Servoprop 25 installation remains safe, practical, and easily integrated with other onboard electrical systems.

Sustainable and efficient sailing
The Oceanvolt Servoprop 25 represents the future of sustainable sailing. With enhanced power, advanced variable-pitch technology, and its reliable 48-volt configuration, it offers an efficient, eco-friendly alternative to conventional diesel engines. Additionally, its exceptional hydrogeneration capabilities significantly contribute to onboard energy production, promoting truly autonomous cruising.
Interested in upgrading to the Oceanvolt Servoprop 25?
⚓ Our expert team at E-NAVSYSTEMS is ready to guide you through selecting and installing the right electric propulsion solution for your yacht.
📞 Contact us today for personalized assistance and start sailing sustainably!