Vertical wind turbine 24 V – 250 W nominal / 500 W maximum – 5 blades

A compact solution for 24 V battery charging

This vertical axis wind turbine is designed to complement the electrical supply of residential, marine, or autonomous sites equipped with a 24 V battery bank. Its 5-blade vertical rotor captures wind from any direction without a mechanical orientation system.

It develops a nominal power of 250 W under wind conditions specified by the manufacturer and can reach a maximum power of 500 W during favorable or transient wind conditions.

Its brushless permanent magnet generator reduces maintenance operations and is suitable for low-power installations: chalet, cabin, boat, weather station, autonomous lighting, or hybrid solar-wind system.

Key features

• 24 V system suitable for a battery bank of the same voltage.
• Nominal power of 250 W.
• Maximum announced power up to 500 W.
• Announced start-up from 2.5 m/s.
• Vertical rotor with 5 blades.
• Wind capture in all directions.
• No mechanical orientation system required.
• Brushless permanent magnet generator.
• Electromagnetic braking managed by the controller.
• Announced sound level below 30 dB at 5 m/s.
• Materials designed for outdoor use.
• Mounting with DN25 4-hole flange.
• Limited maintenance due to the absence of brushes.

Common applications

• Chalet or isolated dwelling.
• Cabin, refuge, or small autonomous site.
• Sailboat and marine installation.
• Camper or converted vehicle with suitable support.
• Autonomous LED lighting.
• Surveillance camera.
• Weather station.
• Telecommunication installation.
• Maintenance or supplementary charging of a 24 V battery park.
• Hybrid system combining wind and solar.

For a hybrid installation, the wind turbine must be connected to an appropriate wind regulator. It should not be directly connected to a solar MPPT input.

Technical specifications

• Type of turbine: vertical axis wind turbine.
• Nominal system voltage: 24 V.
• Nominal power: 250 W.
• Maximum power: 500 W.
• Number of blades: 5.
• Announced starting speed: 2.5 m/s.
• Announced nominal speed: 13 m/s.
• Announced maximum admissible wind: 35 m/s.
• Generator: brushless, with NdFeB permanent magnets.
• Generator output: three-phase AC, 3 conductors.
• Regulation: 24 V wind controller.
• Braking method: electromagnetic braking via the controller.
• Orientation facing the wind: not necessary.
• Announced sound level: less than 30 dB at 5 m/s.
• Announced operating temperature: from –40 °C to +80 °C.
• Approximate dimensions: 75 cm in diameter × 80 cm in height.
• Announced net weight: 14 kg.
• Announced gross weight: 15 kg.
• Mounting: DN25 flange with 4 holes.
• Compatible batteries: 24 V battery pack.
• Batteries included: no.

Understanding the announced power ratings

Nominal power of 250 W

• It corresponds to the reference power obtained at the announced nominal wind speed.
• It does not mean that the wind turbine provides 250 W continuously.
• The power increases or decreases according to the actual wind speed.
• Production also depends on the location and electrical losses.

Maximum power of 500 W

• It can be reached occasionally when the wind is strong enough.
• It corresponds to a maximum or transient regime.
• It should not be used as a basis for a fixed estimate of daily production.
• It does not constitute a continuously available power.

To make an estimate based on the wind at your site, use the wind power production simulator.

Kit contents

• 1 vertical turbine with 5 blades.
• 1 integrated permanent magnet generator.
• 1 24 V wind charge controller.
• 1 set of screws.
• 1 DN25 flange with 4 holes.
• 1 installation manual in French.

Benefits

Multidirectional operation

• The vertical rotor accepts changes in wind direction.
• It does not require a wind vane.
• It does not have a mechanical wind-facing orientation system.
• This design can be interesting when the wind direction varies regularly.

Complement to a solar system

• The wind turbine can complement the charging of a 24 V battery bank.
• The solar panels must keep their own solar regulator.
• The wind turbine must use a regulator specifically designed for wind power.
• Both sources can power the same battery bank if the voltage and settings are compatible.
• A hybrid controller can also be used when it is explicitly designed for the concerned power levels.

Limited maintenance

• The generator does not have brushes.
• Routine maintenance operations remain limited.
• Regular inspection of the blades and fastenings remains essential.
• The mast, electrical connections, and anchors must also be checked periodically.

Outdoor use

• The advertised materials include treated aluminum, stainless steel elements, and blades made of composite material.
• The turbine is designed to withstand outdoor conditions.
• In a marine environment, regular anti-corrosion checks are recommended.
• The exact protection rating of each component must be confirmed before publication.

Installation tips

• Opt for an independent mast, properly sized and installed in a clear area.
• Avoid roof or gable installations as much as possible due to turbulence, vibrations, and stresses transmitted to the building.
• Do not validate a wall or roof mounting without mechanical verification.
• Ideally position the rotor above nearby obstacles when the terrain and regulations allow.
• Check the compatibility between the DN25 flange and the outer diameter of the mast.
• Also check the thickness of the tube, anchoring, guying, and support strength.
• Connect the three generator wires to the designated input of the wind controller.
• The three conductors correspond to AC phases and do not have positive or negative polarity before rectification.
• Then connect the controller to a 24 V battery bank.
• Never connect the wind turbine directly to a battery, inverter, power station, or solar MPPT input.
• Size the cables according to the round-trip length, maximum current, and allowable voltage drop.
• Provide suitable electrical protections: disconnection, fuse or circuit breaker, grounding, and protection according to the installation.
• Check the tightening after the first hours of operation.
• Then periodically inspect the blades, screws, mast, stays, cables, and controller.
• After a strong wind episode, check that the fastenings and blades have not been damaged.

If the support is ready, allow for half a day of assembly, depending on the kit, terrain, and wiring.

Warranty and support

• Manufacturer's warranty announced: 2 years.
• Remote technical support by email.
• Access to the FAQ and guides available online.
• Spare parts according to published references and availability.
• Equipment selected and controlled by Le Comptoir Éolien.

The vertical wind turbine 24 V – 250 W nominal / 500 W maximum is intended to supplement the charging of a battery bank on a cabin, boat, standalone installation, or hybrid solar-wind system.

Its vertical 5-blade design favors compact integration, multidirectional operation, and limited maintenance. Actual production remains directly linked to the available wind and the quality of the installation.

15899 - 010920261640