The terms wind energy or wind power describe the process by which the wind is used to generate mechanical power or electricity. Wind turbines convert the kinetic energy in the wind into mechanical power. This mechanical power can be used for specific tasks (such as grinding grain or pumping water) or a generator can convert this mechanical power into electricity.
Many people fail to comprehend the difference between wind energy and wind Power, and use the terms interchangeably.
Power is defined as the rate at which energy is generated or consumed and is measured in watts. Energy is defined as the amount of electricity that is consumed over a period of time and it is measured in watt-hours. Mathematically they are related as follows:
Energy = Power x Time
1,000 watts is called a kilowatt (kW), and 1,000 kilowatts is known as a megawatt (mW).
In energy units, 1,000 watt-hours is referred to as a kilowatt-hour (kWh), and 1,000 kilowatt-hours make up one megawatt-hour (mWh).