How do Wind Power Turbines Work?

Construction of wind power turbine

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.