Horizontal wind turbines. Understand the range.

What is a horizontal axis wind turbine?

A horizontal axis wind turbine, or HAWT, uses a rotor turning around a horizontal axis. The U.S. Department of Energy describes this as a propeller-style arrangement. For a buyer, the useful next step is to compare the actual rotor dimensions and electrical specifications rather than relying on the general turbine type.

AS VAYU F-Type models in the supplied catalogue use three blades. The family includes ten variants with rated outputs from 500W to 5kW. The largest listed rotor diameter is 5.3 metres.

Why two models can have the same rated power

The F-Type range includes two 1kW variants with rotor diameters of 2.1 metres and 2.6 metres, and two 3kW variants with 4.1-metre and 4.8-metre rotors. These entries should be treated as distinct models when comparing a quotation or checking available installation space.

Voltage options also differ across the range. The website presents each variant separately so you can identify the specific turbine under discussion. Include the full model description in your inquiry when more than one variant has the same wattage.

Match the turbine to a complete system

The company presentation outlines off-grid, battery-based and grid-connected system concepts. Selecting an F-Type turbine does not by itself select the controller, battery, inverter, tower or connection arrangement. Those items need to be defined around your site and loads.

For backup use, state the essential equipment and desired backup duration. For a grid-connected proposal, identify the site connection and ask what utility review and electrical protection are required. Existing solar or backup equipment should be documented before any integration is assumed.

Prepare for a model-level discussion

A clear brief makes it easier to compare proposals on the same basis. Send your project location, available tower area, known wind information, power requirement and the exact model you are considering. Ask the team to identify anything that still requires a survey or engineering decision.

• Check rated power and maximum power as separate specifications.
• Confirm rotor diameter, tower proposal and access requirements.
• Review listed start-up and rated wind speeds for the exact variant.
• Request a clear list of included equipment and installation work.

Common questions