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How much does a small wind turbine cost?
A working 1 kW system costs USD 3,000–5,000 installed, not 1,900. The gap between the catalogue price and the real number is tower, batteries, cable, foundation and labour — and it is the part most buyers forget. Here is the whole sum, model by model.
Ex-works price by size
| Model | Rotor | Output at 5 m/s | Ex-works price (USD) | Typical installed cost |
|---|---|---|---|---|
| 300 W | 1.2 m | 600 kWh/yr | 690 – 890 | 1,400 – 2,000 |
| 500 W | 1.8 m | 1,000 kWh/yr | 1,190 – 1,590 | 2,300 – 3,200 |
| 1 kW | 2.4 m | 2,000 kWh/yr | 1,890 – 2,400 | 3,000 – 5,000 |
| 2 kW | 3.2 m | 4,000 kWh/yr | 3,200 – 3,900 | 5,500 – 8,500 |
| 3 kW | 3.8 m | 6,000 kWh/yr | 4,500 – 5,600 | 7,500 – 11,000 |
| 5 kW | 5.0 m | 10,000 kWh/yr | 6,900 – 8,400 | 11,000 – 16,000 |
| 10 kW | 7.8 m | 20,000 kWh/yr | 12,900 – 15,900 | 21,000 – 30,000 |
Ex-works means the machine leaves our factory with the nacelle, blades, generator, controller and manual. Tower, foundation, cable, batteries, inverter, shipping and installation are quoted separately, because they depend on your site rather than on the turbine.
What the ex-works price includes
A complete turbine head: three blades and hub, direct-drive permanent-magnet generator, nacelle with yaw bearing, furling or brake system, and the controller that does MPPT charging, dump load and overspeed protection.
It does not include the tower. A 9 m tilt-up tower adds USD 700–1,200; a 15 m guyed tower USD 1,800–3,000; an 18–24 m free-standing tower for 10 kW machines USD 6,000–9,000. Tower cost per metre drops with height, but total cost triples between 9 m and 18 m.
Where the installed cost goes
| Item | Share of installed cost (1–5 kW) |
|---|---|
| Turbine and controller | 50–58 % |
| Tower and foundation | 18–25 % |
| Batteries (off-grid only) | 10–20 % |
| Cable, switchgear, surge protection | 4–7 % |
| Installation labour and crane | 8–15 % |
| Permits and grid application | 1–4 % |
The single biggest source of quote variance is the tower, not the turbine. Two quotes for the same 3 kW machine can differ by 60 % because one assumes a 12 m tilt-up tower and the other an 18 m guyed tower with a concrete foundation.
The four things that move the price most
Height. Every doubling of tower height adds roughly 10 % wind speed in open terrain, which is about 30 % more energy. Going from 9 m to 18 m typically costs 40 % more on the tower and returns 30–50 % more energy — usually the best money you spend.
Whether you need batteries. A grid-tie 3 kW system needs an inverter and a meter; an off-grid 3 kW system needs a battery bank that can carry three cloudy, calm days. That battery alone can equal the price of the turbine.
Site access. A machine you can raise by hand on a tilt-up tower costs a few hundred dollars to install. A 15 m tower that needs a crane and a concrete pour costs several thousand.
Certification and documentation. CE marking, a measured power curve and an IEC 61400-2 design statement add 5–10 % to the price. They also decide whether your grid operator will approve the connection at all.
Payback: the arithmetic that decides it
Take a 3 kW machine on a 5 m/s site: 6,000 kWh a year. At a European household tariff of EUR 0.30/kWh that is EUR 1,800 of avoided electricity a year against an installed cost of EUR 8,000–10,000 — six years, before service costs of about EUR 200 a year.
The same machine on a 4 m/s site produces 3,300 kWh, and the payback stretches past twelve years. On a 6.5 m/s coastal or upland site it produces 9,000 kWh and pays back in four. The turbine did not change; the site did. This is why we ask for a wind speed before we quote a price.
Where a diesel generator is the alternative, the comparison flips entirely: diesel at USD 0.35–0.60/kWh delivered to a remote site makes a 5 kW turbine pay back in two to three years, and the avoided fuel logistics often matter more than the fuel cost.
Cheap turbines and why they cost more
A USD 400 '5 kW' unit from a marketplace listing is not a 5 kW turbine. Read the spec: rated power is usually quoted at a wind speed the machine never sees, the rotor is 1.2 m instead of 5 m, and there is no furling mechanism, no brake and no power curve. Real output at 5 m/s is closer to 200 W.
The expensive part of a small turbine is not the generator — it is the structure that keeps the blades attached in a 50 m/s gust. That is where cheap units cut, and it is why they have a two-year life and no certification.
