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Commercial
A commercial wind turbine is the point where wind stops being a backup and starts carrying a load: three-phase output, a crane on site, and a payback calculation a finance director will read. This page covers what each size costs, what it produces, and when it does not make sense.
Three things change above roughly 20 kW. The output is three-phase, so it feeds a distribution board or a transformer rather than a battery charger. The tower needs a crane and a designed foundation, which means a site survey and usually a building permit. And the economics move from «offsetting a bill» to «displacing a fuel»: at 50 kW and above, the comparison is rarely another renewable gadget — it is diesel, or a grid connection quote that came back at six figures.
That last point decides most projects. If a site already pays 0.25–0.35 USD per kWh for diesel generation, a 100 kW turbine with a 250 MWh annual output is avoiding 60,000–85,000 USD of fuel a year, and the payback lands between three and five years. If the site pays 0.10 USD/kWh from a stable grid, the same machine takes nine to twelve years and the project is a carbon decision rather than a financial one.
| Model | Rated | Rotor | Tower | Annual output @6 m/s | Installed budget | Typical buyer |
|---|---|---|---|---|---|---|
| GH-A20K | 20 kW | 8 m | 12–24 m | 47 MWh | USD 35k–75k | Farm, lodge, village cluster |
| GH-A30K | 30 kW | 10 m | 18–30 m | 71 MWh | USD 45k–95k | Cold store, camp, water treatment |
| GH-D50KW | 50 kW | 16 m | 20–30 m | 125 MWh | USD 90k–190k | Community, industrial self-use |
| GH-D100KW | 100 kW | 24 m | 30–35 m | 250 MWh | USD 180k–380k | Village grid, agro-industry |
| GH-D200KW | 200 kW | 30 m | 35–40 m | 500 MWh | USD 320k–650k | Island utility, mine, 1 MW farm |
The 20 and 30 kW frames are the top of our direct-drive range: no gearbox, one container, two-day erection, and a service visit that fits in a morning. They suit a farm with a pump and a cold room, a lodge, a construction camp, or a village cluster of fifteen to twenty-five households on a hybrid inverter.
The 50, 100 and 200 kW machines are a different class of object. A 16 to 30 m rotor, a 3.5 to 9.5 tonne nacelle, three independent braking systems, IEC II design class and a tower that arrives in three sections on a low-bed trailer. They need a 50–100 t crane, a foundation of 60–120 m³ of concrete, a grid study and a maintenance contract. They are also the sizes that a bank will finance, because the documentation an insurer expects actually exists.
Ex-works price covers the nacelle, blades, generator, controller, tower and the documentation package. It does not cover the four items that surprise first-time buyers: the foundation (8–15 % of project cost), crane mobilisation (5–12 %, and much more on an island), the electrical balance of plant (10–18 %, including transformer and protection), and grid connection or a met mast campaign (5–20 %).
As a rule of thumb, installed cost runs 2.2–2.6 times the ex-works turbine price for the 50–200 kW class, and 2.4–2.8 times for 20–30 kW where the fixed costs are spread over fewer kW. Transport is the wild card: a landlocked country with a weak bridge on the access road can add 15 % before the crane is even booked. Get the route survey done at quotation stage, not after the letter of credit.
| Power | Installed cost | Diesel at 0.30 USD/kWh | Grid at 0.12 USD/kWh | Grid at 0.25 USD/kWh |
|---|---|---|---|---|
| 50 kW | USD 110k | 3.5–4.5 yr | 10–13 yr | 5–6 yr |
| 100 kW | USD 220k | 3.5–4.5 yr | 9–12 yr | 4.5–6 yr |
| 200 kW | USD 390k | 3–4 yr | 8–11 yr | 4–5.5 yr |
These numbers assume a 6 m/s mean wind speed at hub height, 96 % availability, O&M at 2.5 % of capex per year and a 20-year design life with one major component replacement. Change the wind speed by 1 m/s and annual output moves roughly 25 % — which is why a twelve-month met mast, or at minimum a bankable mesoscale dataset corrected with three months of on-site measurement, is worth more than any discount on the turbine.
The diesel column is where most of our commercial enquiries come from: islands, mines, remote resorts and telecom towers that currently run a generator 12–20 hours a day. A 200 kW turbine producing 500 MWh a year against diesel at 0.30 USD/kWh avoids about 150,000 USD of fuel annually — roughly a three-year payback before storage is even sized.
Indicative budgets, ex-works unless stated. Firm quotations after load and wind review.
Two numbers are enough to start: annual kWh and the highest monthly bill. We will tell you which model fits, what it will produce at your wind speed, and whether the project pays back.
Request price & datasheetSend 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.
