Silentwind 400+ Marine Wind Turbine

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Silentwind 400+ Marine Wind Turbine
Silentwind 400+ Marine Wind Turbine Silentwind 400+ Marine Wind Turbine Silentwind 400+ Marine Wind Turbine Silentwind 400+ Marine Wind Turbine Silentwind 400+ Marine Wind Turbine Silentwind 400+ Marine Wind Turbine

Silentwind 400W Marine Wind Generator - 12, 24 or 48V

The Silentwind 400+ is a result of 30 years of research and development into small marine wind turbine technology. It represents the latest technology in small wind turbines and can be used with modern lithium batteries.

As its name suggests it is very quiet which means it is also very efficient. It is among the quietest turbines available.

This 400W off grid wind turbine is suitable for both land and marine applications.

It is supplied with a digital hybrid charge controller which can connect up to 300W of solar panels. The controller also has a very handy Bluetooth connection option to fine tune and monitor charging parameters.

With a three year warranty and being manufactured in the EU assuring quality construction and reliable source of spare parts, means this small turbine is an ideal way to generate renewable power and as such, has been chosen by Volvo Ocean Race teams.

Volvo Ocean Race using Silentwind 400 Wind Turbines


  • 12V, 24V or 48V versions available

  • Low noise

  • Can be used with lithium batteries

  • Permanent magnet-generator with 420 watts output

  • Very good start-up performance due to a low cut-in wind speed of 2.8m/s 

  • External hybrid controller for wind- and solar-energy with multi-function display and integrated electronic/manual stop switch

  • Universal application for locations with low, middle and high wind speeds

  • Hand laminated, UV-resistant carbon blades, successfully tested in a wind tunnel at hurricane speed 122km/ h (5480 rpm). 

  • Other standard wind turbine blades from other manufacturers are made from granulate using injection moulding techniques to achieve a fast production time but lack durability, especially after UV exposure. Silentwind's blades are handmade incorporating high tensile carbon fibre mats - this results in an optimized blade profile at the lowest weight. Delivers very quiet operation, blade longevity and an exceptional safety record.

  • Aerodynamic design from aircraft-engineering

  • Robust and low maintenance

The Silentwind turbine controller requires an internet connection for custom configuration. This may not be possible in remote locations.


Turbine Type 3 Blade Horizontal Wind Turbine
Rated Power Output 420W (max)
Max Power 420W
Cut-in Wind Speed 2.8 m/s approx 5.6 Kts
Rotor Tyoe 3 Blade
Blade Material Carbon Fibre - Blue Colour
Rotor Diameter 1.15m
Swept Area 1.04 m2
EPS Power Rating Medium 
EPS Noise Rating Low


Body Construction Anti - corrosion powder coated aluminium - white colour RAL9010
Generator Type Permanent 3 Phase Magnet Generator
Control Mode Electronic Charge Regulation
Overspeed Braking Electronic Braking
High Wind Speed Test 122 km/h demonstrated
Solar Input? Charge controller allows up to 300W of solar PV
Mounting Pole Requires 48.1mm diameter
Weight 6.8Kg
Warranty 3 years

More Information
EPS Power Rating Medium
EPS Noise Rating Low
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