It is near Daixian, Xinzhou.
See below for data.
Wind farms, as a general rule demand wind speeds of 4.5 metres per second or higher.
A great place for a project like Daixian I might have a near constant flow of non-turbulent wind throughout the year, having a minimum chance of sudden effective bursts of wind. An important factor of turbine siting is furthermore admittance to local demand or transmission capaDaixian, Xinzhou.
Before construction, Daixian I was probably screened on the foundation of a wind atlas, and validated with wind specifications. However, Daixian I wind farm would have needed more than merely meteorological data and measurements.
Site data around Daixian, Xinzhou would have been a major factor in the ‘development’ final decision Winds around Daixian, Xinzhou are analysed for over a year or so plus the creation of detailed maps. Only then are wind turbines installed.
The wind hits swifter at greater altitudes because of the reduced effect of drag. The surge in velocity with altitude is most spectacular near the surface and is impacted by topography, surface roughness, and upwind obstacles such as trees or buildings. Velocity grows with altitude and is more evident near land and is changed by terrain, surface and hurdles.
Wind speeds growing with altitude is part of a wind energy law. This Shanxis wind speed rises with the 7th root of altitude. Doubling the altitude of a turbine, then, increases the anticipated wind speeds by 10%, and the predicted power by 34%.
The distance of 7x Rotor Diameter is placed between each turbine, ie they are spaced out so they don’t affect each other. But micrositing maximizes placement, specially in hilly areas.
Individual turbines at Daixian I are interlocked with a medium voltage (usually 34.5 kV) power collection system and communications network.
At a substation, this kind of medium-voltage electric energy is enhanced in voltage using a transformer for link with the high voltage transmission system. Construction of a land-based wind farm requires installation of the collector system and substation, and probably roads to each and every turbine site.
Facts about Daixian I wind farm
- Name: Daixian I
- Wind turbine Supplier: Senvion, Model: 1.500MW, Units: 1,
- Country: China
- State: Shanxi
- City: Daixian, Xinzhou
- Owner: China Guodian, Shanxi Yifeng Technology