Before the concrete design of a wind power installation, several fundamental questions should be clarified:
• Average Wind Velocity
Power in the wind is the cubic function of the wind speed. The higher the average wind is, the more power a wind turbine can generate. It is better to choose the area where average wind speed is over 3m/second.
• Turbulence
Turbulence might damage wind turbine and will largely reduce its efficiency. Therefore, locate the turbine in a site that has turbulence is not desirable.
• Local prevailing wind direction
Prevailing wind direction is the direction of the wind last longest time in a place. It is better to install at the site with steady prevailing wind direction, without wind ward blocks.
• Favorable Terrain
Favorable terrain can speed up wind, better to locate turbine in the facing-wind rigid of a mountain or the mountain pass, avoiding in out of wind slop or in basin.
• Height of tower
Erect tower as high as you can, because the farther you get away from the earth’s surface, the higher and steadier the wind is. In even area, the recommended height of tower is 6m at least. The recommended height of tower for our turbine is 6m-18m.
•Obstacle
Trees and buildings will obstruct the airflow and cause a wide and thick turbulence area in front and behind the obstacle. Avoid locating the site in such area.
The wind turbine should be located in an area without surrounding obstacles within a 400meter radius. The height of the turbine has to be two times higher that the highest obstacle if any.
If wind turbine imposition leeward approaches in the building, the erecting pole highly also should be above the building highly 6meters. The installation site in is away from outside the building 75meters.


• Local regulation
The installation should pay enough attention to local regulation

If your property has a lot of turbulence, a vertical turbine is generally a better option. Vertical turbines do not "see" wind direction, so they don´t need "recovery time" like a horizontal turbine does.

Also, if the prevailing wind direction points up the slope of your rooftop, it can be beneficial to place the turbine on your roof to benefit from the increased velocity of the wind being forced up your roof.

Also, beware of weather data providing "average" wind direction. This may be deceiving. The wind may have one primary direction part of the year and another during another time of year, so the average wind direction, may not correspond to anything useful.