Wind energy can be defined as the energy derived from wind to generate power. It is a sustainable and valuable investment for the future. 
The construction of wind farms on land or at high sea is required to utilize wind energy, with dozens of wind turbines. 

Solar radiation does not impact the earth’s surface proportionally, as several areas are warmer than others, weights less, and tends to rise, to develop low-pressure areas. In colder areas, as air descends, it weighs more and creates high-pressure areas. The motion in the air caused by the difference in pressure develops wind, Wind is utilized for producing electricity with the conversion of the kinetic energy of air in motion.

The wind turbines convert the kinetic energy into rotational energy, with the rotation of the rotor blades. This rotational energy is further transferred to the generator by a shaft, to produce electrical energy. The technological advancements have resulted in reduced costs and increased capacity. 

The power harvesting capacity of wind relies on turbine size and length of blades. The harvested wind is proportional to rotor dimensions, and the cube of the wind speed. 

It is required to position the wind energy in the direction of the wind, it is done by vane means on the nacelle. 
The air currents force set the three major parts of the wind turbine in motion:

The rotor: It is composed of three blades, as well as a blushing that connects them together. It captures the wind force and converts it into mechanical rotational energy. 

The multiplier: It connects the engine with the shaft. It is utilized to boost the rotation speed from 3- rpm to 1500 rpm. 

The generator: It is utilized for converting the mechanical energy of rotation into electrical energy. 

Wind farms with wind turbines linked together by underground cables are utilized for carrying the electricity to a transformer substation. It is further transported to various recipients, such as homes, factories, or schools by distribution networks of numerous electricity companies. 

Both the onshore as well as offshore wind possess the extensive potential for worldwide deployment and improvement. 

Onshore Wind Energy: Onshore wind energy harnesses the wind from wind farms located on land to produce electricity. It involves the installation of wind turbines that can transform the kinetic energy from the wind into electricity suitable for usage and send it to the distribution network.

Offshore Wind Energy: Offshore wind energy harnesses the wind force on the high seas, where it has a more constant and higher speed compared to land due to no barriers. Megastructures are installed to utilize these resources, seated on the seabed, and integrated with advanced technical innovations. 

The major companies operating in the industry are; Ramboll Group, OWEC Tower AS, MT Hojgaard, Offshore Wind Power Systems of Texas LLC, Suzlon Energy Limited, Blue H Engineering, and SWAY AS. 

Therefore, the potential of wind energy to convert the kinetic energy of air motion into electrical energy leads to its increasing demand.