Alternative energy is very much a topical issue today, given how pricy fuel has gotten. Wind energy is one such alternative energy source, and the spotlight has set on the efficiency of wind farms. Using wind as an alternative energy source means having a renewable power that is incredibly clean. Wind is caused by differences in the temperature on the ground, which comes from the heat of the sun, so in essence wind power could be said to originate from solar power. The wind is thus channeled to generate electricity.
Wind farms as a large-scale means of capturing the energy generated by wind has been adopted by many nations. Working like propeller blades but in reverse, the power of the wind is collected by the big blades of a number of wind turbines that have been set up in a suitably windy location. These farms are able to produce electricity in large amounts, when the wind turbines work in concert. The potential of wind farms will become plain when you are familiar with how they function. How wind turbines function is, the propeller turns a shaft when the gusts of wind turn the propeller blades. The shaft that is turning is connected to a power source, which is cranked by the spinning action, creating electric power. Using the power inherent in the flow of water instead of wind, hydropower is made in the same way.
One turbine by itself will not produce energy for more than a home or farm, so it takes more than one to create energy for a huge area. When the ability of a turbine is multiplied by having groups of them, like you find on a wind farm, the combined amount of electric power that can be created is very big. Whole towns can be run by the energy that is stored in battery-like storage cells, or existing utility power grids. The technology behind wind turbines has grown remarkably, so that now they are effective irrespective of which way they face compared to the wind – even swirling winds can be utilized.
Larger turbine blades and taller turbines also make for better efficiency. With a lot of factors that affect how well a wind turbine will operate, determining its production efficiency is not a straightforward task. There is no constant, when it comes to wind farms, since they deviate so much in terrain, size of turbines, and the amount of wind. In general, though, you can expect a wind turbine to turn into electrical energy more or less 20% of the energy contained in wind. When the wind is blowing between 5 and 20 mph, that is when the yield is the most cost-effective.
Compared to solar energy, wind power generation, rated 20% efficient, is roughly 6 percentage points better, but solar doesn’t vary as much as wind. Wind technology is coming along, and in comparison with other renewable sources, it is favorable. Amongst alternative sources of energy it has become essential, but has not yet found worldwide favour. One nation decided to invest a lot is Germany.