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Small wind turbine · 500 W class
The volume model. Big enough to carry a house load through the night, small enough to ship by air freight and install without a crane. Most of the units we send to farms, islands and telecom sites are this frame size.
A 1.8 m rotor on a 9 m tower puts the blades in 5.3 m/s of wind on a site that only measures 4 m/s at ground level. That difference is where the energy comes from: at 5 m/s average the WT-500H produces around 1,000 kWh a year, roughly a quarter of a European household's consumption and most of an off-grid cabin's.
You can order it three ways: a 24/48 V battery charger with MPPT, a grid-tie version with a 500 W inverter and anti-islanding, or a hybrid controller that takes 1 kW of PV on the same DC bus so wind fills the nights and solar fills the calm weeks.
| Parameter | Value |
|---|---|
| Peak power | 600 W |
| Rated wind speed | 11 m/s |
| Cut-in wind speed | 2.5 m/s |
| Survival wind speed | 52 m/s |
| Rotor diameter | 1.8 m |
| Swept area | 2.54 m² |
| Blades | 3 × GFRP |
| Generator | Direct-drive PMG, 3-phase |
| Controller | MPPT 24/48 V, 30 A |
| Output | DC 24/48 V |
| Tower | 6 m / 9 m / 12 m |
| Nacelle protection | IP54 |
| Noise | ≤ 50 dB(A) @ 10 m |
| Design life | 20 years |
| Annual output (5 m/s mean) | ≈ 1,000 kWh |
| Warranty | 3 years (5 structural) |
Price depends on tower height, controller and battery bank — ask for a quote with your site details.
Three GFRP blades with a NACA-based profile optimised for low Reynolds numbers — the regime small turbines actually run in.
Battery (24/48 V), grid-tie (500 W inverter), or wind-solar hybrid on one DC bus. Same nacelle, different controller.
A tail vane with a spring-loaded hinge keeps the rotor facing the wind up to 13 m/s, then furls progressively instead of stalling abruptly.
Tapered roller bearings, greased for life, protected by a labyrinth seal against dust and salt.
Carries lighting, fridge, pump and electronics on a 48 V / 400 Ah bank with 1 kW of PV.
Powers electric fencing, water pumping and security lighting where the grid is single-phase and unreliable.
Runs a 300 W radio load with battery autonomy of four to five days.
Send the site location and the load you need to power. You get a sized model, a price and a lead time — usually within one working day.
