Question

What is a windmill? Write its advantage.

Answer 1

Hint: There are many forms of energies from which we generate electrical energy. Potential energy of water stored in a dam, nuclear energy from nuclear reactors, solar energy converted by solar panels, etc are some of the examples. Like these, Wind energy is also converted into electrical energy by means of wind mills. Here, we will discuss the windmill and its advantages in detail.

Complete step by step answer:
The conversion of wind energy into rotational energy by the means of blades of the mill is made possible by a windmill. Wind energy is the electrical energy obtained from harnessing the wind with windmills or wind turbines. Wind power or wind energy is described as the process of using blowing wind in order to generate the mechanical power through wind turbines to turn electric generators and traditionally to do other work, such as milling or pumping. The mechanical power produced by the turbines can be used for specific tasks, such as grinding grain or pumping water.
Advantages of using wind energy:
1. Wind power is cost effective: Land based utility scale wind is one of the lowest priced renewable energy sources available today. It only costs between four and six cents per kilowatt-hour, depending upon the wind resource and project financing of a particular project.
2. Clean fuel source: Wind energy is a clean and pure energy source. Wind energy doesn’t pollute the air like other energy sources which rely on combustion of fossil fuels such as coal or natural gas. Also, wind energy doesn’t emit dangerous gases such as nitrogen oxide and sulphur dioxide.

Note: Wind energy is the cheapest available source for new electricity generation at present. Wind power sources are more expensive than power from old established power plants, but are cost competitive and any new power plant. Wind energy mitigates the price uncertainty that fuel cost adds to traditional sources.