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Commercial wind turbine · 20 kW class
The size at which a site stops being a battery system and becomes a power station. Ten metres of rotor, three-phase 380 V, and enough annual output to carry a farm, a lodge or a twenty-house cluster without the diesel set running every night.
The GH-A20K is a direct-drive permanent-magnet machine with a 10 m rotor and 78.5 m² of swept area. Rated power is quoted at 11 m/s, the same wind speed used across our range, so the 20 kW on the nameplate is a number the turbine actually reaches in a normal year rather than a short gust reading. Typical annual output on a 6 m/s site is around 47 MWh.
Electrically it is a three-phase machine: 220/380 V, 50 or 60 Hz, feeding a distribution board through a 20 kW grid-tie inverter, or charging a large battery bank through a hybrid inverter that also takes PV on the same DC bus. That second configuration is what most island and off-grid customers order, because it lets one machine cover both the night load and the cloudy weeks.
| Parameter | Value |
|---|---|
| Peak power | 23 kW |
| Rated wind speed | 11 m/s |
| Cut-in wind speed | 3.0 m/s |
| Survival wind speed | 45 m/s |
| Rotor diameter | 10.0 m |
| Swept area | 78.5 m² |
| Blades | 3 × GFRP |
| Generator | Three-phase PMG, direct drive |
| Controller | 20 kW grid-tie / hybrid inverter |
| Output | AC 220/380 V |
| Tower | 12 / 18 / 24 m |
| Nacelle protection | IP54 |
| Noise | ≤ 62 dB(A) @ 10 m |
| Design life | 20 years |
| Annual output (6 m/s mean) | ≈ 47,000 kWh |
| Warranty | 3 years (5 structural) |
Price depends on tower height, controller and battery bank — ask for a quote with your site details.
Rated at 11 m/s with a 3 m/s cut-in. Three GFRP blades, passive furling above 14 m/s, and a mechanical rotor lock for storm preparation.
Grid-tie through a 20 kW inverter with anti-islanding, or hybrid operation on a shared DC bus with 10–20 kW of PV.
Electromagnetic braking from the controller plus a manual rotor lock. Neither depends on the other, which is what insurers ask about.
Hot-dip galvanised tubular or lattice tower, with foundation and anchor drawings issued against your site wind speed and soil report.
Drives a 15 kW pump set through the afternoon peak and cuts the demand charge on a single-phase farm connection.
Replaces 12,000–18,000 litres of diesel a year at a coastal or hill site with a 20–40 kWh battery buffer.
Anchor generator for a 20–40 kW hybrid plant serving 15–25 households, with PV and a 60 kWh battery.
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.
