Effect of Wind Turbine

A wind turbine is a rotating machine which converts the kinetic energy of wind into mechanical energy. If the mechanical energy is used directly by machinery, such as a pump or grinding stones, the machine is usually called a windmill. If the mechanical energy is instead converted to electricity, the machine is called a wind generator, wind turbine, wind power unit (WPU), wind energy converter (WEC), or aerogenerator. This article discussed on how the wind turbine affects the human and environment.

Wind turbine. Source : Dust Networks.

Positive

Pollution-free environment

Wind energy system operations do not generate air or water emissions and do not produce hazardous waste. Nor do they deplete natural resources such as coal, oil, or gas, or cause environmental damage through resource extraction and transportation, or require significant amounts of water during operation.
Wind's pollution-free electricity can help reduce the environmental damage caused by power generation in the worldwide.


Worked as farming area

The usual sites for wind farms are in mountainous areas with low vegetation due exactly to the high wind speeds which favors wind energy development.
In these areas, the land is used mainly as pasture for sheep and goats, which can continue unhindered after the wind farm has been built. In fact, in some wind farms, it has been observed that wind turbines attract sheep and goats in hot weather because they enjoy the shade provided by the towers

Sheep enjoyed their life at the wind farm.

Attracted tourism

The installation of wind turbines increases tourism, providing evidence that most people see them as attractive additions to land and seascapes. It is because the wind turbine is so unique that rarely be found in almost country


Negative

Electromagnetic produced interfere the signal (radio or satellite)

Wind turbine can potentially disrupt electromagnetic signal used in a range of telecommunication, navigation and radar services. There are three principles mechanism of electromagnetic interference cause by wind turbine :
a) Near field effects
b) Diffraction
c) Reflection

Near field effects refer to the potential of a wind turbine to cause interference to radio signals due to electromagnetic fields emitted by the generator and switching components in the turbine.

Diffraction occurs when an object modifies an advancing wavefront by obstructing the wave path of travel. Diffraction effects can occur when the object not only reflects part of signal but also absorbs the signal.

Reflection interference occurs when the turbines either reflect or obstruct signals between a transmitter and receiver. This occurs because when the rotating blades of a turbine received a primary transmitted signal they act to produce and transmitted a scattered signal. In this situation, the receiver may pick up two signals simultaneously, with the scattered signal causing electromagnetic interference because it is delayed in time (out of phase) or distorted compared to the primary signal.

The signal reflected by the wind turbine.