1. Definition:

A windmill is a structure that uses wind power to drive a mechanical process, such as milling grain or pumping water. Modern windmills, also known as wind turbines, convert the kinetic energy of the wind into electrical energy through a generator. Wind energy is one of the fastest-growing renewable energy sources worldwide.

2. Types of Wind Mills:

• Traditional Windmills:

  • Used for centuries to grind grain, pump water, or other mechanical tasks.
  • Consist of a rotating set of blades (or sails) mounted on a tower that converts wind energy into rotational energy to drive a machine.

• Wind Turbines:

  • These are modern windmills designed to generate electricity.
  • They come in two main types:
    • Horizontal-Axis Wind Turbines (HAWTs): The most common type, with blades that rotate around a horizontal axis.
    • Vertical-Axis Wind Turbines (VAWTs): These have blades that rotate around a vertical axis and are less common but can operate in lower wind speeds.