Step 3 | Determine the size of the wind turbine
You need to examine the specifications issued by the wind turbine manufacturers to have an idea of the approximate amount of energy that a wind turbine system produces, taking into account the average annual wind speed at the installation site.

The height of the turbine off the ground broadly affects the amount of energy produced.
The energy production estimates are for a height of 10 meters off the ground.

You need to consider all the obstacles that may impede the wind, such as:
	Trees		Buildings
	Hills and mountains		Atmospheric pressure