Wind Power: How Does It Work?

Understanding wind power and how we get it

Whenever one talks about alternative energy these days, wind power is among the names that come to the mind right away. Alternative sources of energy production, such as wind power and solar power systems, have always been popular and have had a distinct following of their own. The chief advantage of using these alternative sources is that they are essentially very ‘clean’ in nature, do not drain our natural reserves and are fully sustainable. Moreover, wind power technology has evolved and developed tremendously over the last few decades, resulting in their becoming more user-friendly, less complicated, more affordable and powerful in general. So how does it all happen? Well, it’s all starts with the blowing wind. Wind flow is caused by several geographical and environmental factors like the earth’s rotation, topographical diversities and the differential heating of the earth’s surface by the sun. Wind power, as the name itself suggests, is an alternative source of energy that is sourced from this wind. Wind power solutions involve converting the kinetic energy of the winds into various other useful forms of energy, mainly electricity.

Understanding how wind power works

Wind power can be obtained through two means – either by the traditional windmill system, or by virtue of the modern turbine system. The windmill system is responsible for generating mechanical energy and its most frequent use is in farming and agriculture. Windmills can be typically seen being used to harvest the wind resource to generate the requisite power to pump water or grind cereals. On the other hand, the wind turbine system is based on a more elaborate design, uses more sophisticated technology and is used to generate electricity. A wind turbine mechanism can be broadly categorized into the vertical axis type and the horizontal axis type. A typical wind turbine resembles the aircraft propeller blades that turn in the direction of the moving air. This movement, in turn, activates a shaft that is connected to an electricity producing generator. The power that is actually generated by these systems is dependent on two factors. First, on the size of the turbine and second, on the speed of the wind. It is worth remembering in this context that stronger the wind blows, more is the power that is generated.

It is of much significance to develop an understanding of how wind energy is generated in order to understand its true nature and scope. Wind-flow is a 100% natural phenomenon that is caused by a host of natural factors. The sun’s rays, as they fall on the earth, do not heat the surface of the planet uniformly but in a differential manner. In other words, all the landmasses, water bodies, and the air enveloping everything get heated to varying extents according to their varying propensities to absorb heat. Besides, there are other geographical factors too. For example, the Equatorial temperature is significantly higher than the Polar region.

The warm air at the equator is continuously expanding, getting lighter and rising upwards while cooler air from the poles are rushing in to fill the resultant vacuum. This circulation creates a convectional current which is called the wind. The wind, as it blows across the surface of the planet, carries with it a form of energy that is known as kinetic energy. This energy, when harnessed through suitable means, can be converted into other useful forms of energy like mechanical energy and electricity. And this is what wind power is really all about. However, it is worth remembering that the actual application and cost-effectiveness of wind power depends both on the mechanism used to generate it and also on the speed of the wind blowing in the area.

Is wind power and advantage or a disadvantage?

The advantages of using wind power are many in number and they easily outweigh whatever few disadvantages it might have. Let’s face it, like every other form of energy, wind power too has its fair share of advantages and disadvantages. First, the benefits. Wind power solutions for the average household are excellent for cutting down on power bills, staying independent and also keeping the environment green and clean. As the rampant depletion of natural resources continues unabated the world over, the future of the planet never looked so grim. Natural reserves of wood, coal and petroleum are becoming fewer and fewer with every passing year. It is time to start looking at alternative sources of energy. Green, renewable energy is the need of the hour. And wind power is the perfect match! However, concerns like noise pollution (generated by the rotor blades), avian mortality (birds getting killed by accidentally flying into the rotors) are still there. But such issues can be easily resolved by locating the plant suitably and through continuous technological developments.

Setting up a wind power system at home, in spite of all the recent advancements in the field, is still a somewhat difficult proposition for somebody new to the subject. So, one is always strongly encouraged to take help of a detailed, step-by-step guide that will walk him through all the steps of setting up a wind power plant successfully with minimum hassles or hiccups. Choose a guide that will also help you in finding the best quality equipment, get the best deals on them, select the right location and on every other aspect of setting up a fully functional wind power plant at home.

Jim Martin is a researcher, inventor, home energy consultant and author of the #1 best-selling e-book, "Earth 4 Electricity- Renewable Energy Made Easy". Jim has written dozens of home energy related articles and has been featured in ezines and print magazines, as well as on hundreds of websites worldwide.

To Learn More about Jim Martin´s Unique Step By Step Solar and Wind Power System Visit: How Does Wind Power Work.