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Knowledge base
Straight answers to the questions buyers ask before ordering a small wind turbine — output, noise, wind speed, payback, installation and grid connection.
A 1 kW turbine does not produce 1 kW. It produces about 2,000 kWh a year in a decent site, 800 kWh in a poor one, and almost nothing in a suburb. Here is the ar…
Read more →Yes on a windy farm with a real electricity bill. No on a suburban roof. The difference is not the turbine — it is the site, the tariff and how much of the outp…
Read more →There is no best brand — there is a best match between your load, your wind and your tower site. Answer five questions and the shortlist writes itself.…
Read more →The number that matters is the annual mean wind speed at hub height. Here is the threshold, how to estimate it, and the three mistakes that make people overesti…
Read more →Between 48 and 55 dB(A) at 10 m — quieter than a conversation, but audible at night when the background drops to 25 dB. Distance and blade design decide whether…
Read more →A 1–5 kW machine is a two-person, two-day job if the foundation is ready and the tower tilts up. Here is the sequence, the parts that go wrong, and what to chec…
Read more →Horizontal axis makes 20–35 % more energy per square metre. Vertical axis survives turbulence and takes wind from any direction. The right answer depends entire…
Read more →The structure is good for 20 years. The blades are good for 10–12. The controller is good for 8–12. Whether the machine reaches year twenty is decided by whethe…
Read more →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…
Read more →Most kits are a turbine head, a controller and a manual. The tower, the foundation, the dump load and the cable are usually not in the box — and those missing p…
Read more →A residential turbine works when the hub is 10 m above the roof and the annual mean wind at that height is above 5 m/s. It fails when it is bolted to the ridge.…
Read more →In most of Europe and North America a small turbine is allowed, but only inside a set of limits: total height, distance from boundaries, noise at the neighbour'…
Read more →A creditable DIY 1 kW turbine costs USD 900–1,800 in parts, 120–200 hours of work, and about a 50 % chance of never producing useful power. A factory 1 kW head …
Read more →A 5 kW turbine with a 5 m rotor produces about 10,000 kWh a year on a 5 m/s site — half to two-thirds of a typical Western household's consumption. It needs a 1…
Read more →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…
Read more →Most kits are a turbine head, a controller and a manual. The tower, the foundation, the dump load and the cable are usually not in the box — and those missing p…
Read more →A residential turbine works when the hub is 10 m above the roof and the annual mean wind at that height is above 5 m/s. It fails when it is bolted to the ridge.…
Read more →In most of Europe and North America a small turbine is allowed, but only inside a set of limits: total height, distance from boundaries, noise at the neighbour'…
Read more →A creditable DIY 1 kW turbine costs USD 900–1,800 in parts, 120–200 hours of work, and about a 50 % chance of never producing useful power. A factory 1 kW head …
Read more →A 5 kW turbine with a 5 m rotor produces about 10,000 kWh a year on a 5 m/s site — half to two-thirds of a typical Western household's consumption. It needs a 1…
Read more →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.
