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Construction of wind power turbine

How do Wind Power Turbines Work?

Posted on March 5, 2021September 21, 2021 By Chaitali Gupta

Wind energy is one of the renewable energy as well as the cleanest form of energy.

A wind power turbine is one such device that uses wind energy and changes it into electricity. A wind turbine has blades that use the kinetic flow of wind and turn it into mechanical energy. The mechanical energy is then converted by a generator into electricity.

The wind is also a category of solar energy. The heat from the sun unevenly heats the earth’s surface. The water and land on the earth’s surface absorbs solar radiation unevenly. As a result, the wind is created.

A wind power turbine uses the aerodynamic force from the rotor blades to turn the wind energy into electricity.

Following is a guide on how a wind turbine works 

  • As the wind flows it creates different air pressure on both sides of the blade.
  • The difference in air pressure creates a lift and drag.
  • The lift is stronger than the drag which results in the spinning of the rotor.
  • The rotor is a combination of blades and hubs. The hub attached to the blades spins when blades turn.
  • The rotor connected to the generator, directly or through a gearbox, speeds up the rotation.
  • The generator converts the kinetic energy into electrical energy.
  • The electrical energy is then passed through a transformer where the voltage is increased in order to transport it to the power grid or for local use.

How do Wind Turbine works | Wind energy | Working principles of wind turbine

As of 2018, wind energy produced over 5% of global electricity with 591 GW of global capacity.

The US is second in the world in producing electricity using wind power, with a capacity of 96.4 GW installed.

  • The United States has the six largest onshore wind farms. The Alta Wind Energy Centre in California is the second-largest onshore wind farm in the world with a capacity of 1,548 MW.
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