Will Wind Power Ever Be An Essential Energy Source? September 29, 2011 at 4:31 am
With the expense of fuel today, there is much talk about alternative energy. One such alternative energy source is wind power, the potential of which when harnessed in bulk, as on wind farms, is being looked into. Wind has the advantage of being a very clean and limitless source of power. Wind is triggered by variations in the temperature on the ground, which comes from the heat of the sun, so in essence wind power could be said to be sourced from solar power. An electric current is then produced from transforming the power of the wind.
Wind farms as a large-scale way of capturing the energy generated by wind has been adopted by a number of nations. Working like propeller blades but in reverse, the power of the wind is collected by the big blades of many wind turbines that have been erected in a suitably windy area. These farms are able to produce electricity in huge amounts, when the wind turbines work together. A familiarity of the principles involved in wind farms will exhibit their possible effectiveness. The blades are set on a shaft, and when the wind blows, it turns the blades and hence the shaft. The shaft is connected to a generator, which produces electricity from the turning action of the shaft. Hydropower is just the same, except for making use of water rather than wind as the source of energy.
The power created by one turbine is enough, at best, for no more than a farm, so larger electrified areas need more than just one wind turbine. The great energy yield possible from a wind farm is based on the collective capability of a number of turbines grouped together. The electrical energy made is enough for running an entire community when you store it on an existing utility grid or in special large-scale battery cells. Modern-day wind turbines are much more efficient than previous ones, as they can face the wind, face away from the wind, or even catch gusts from different angles.
Larger blades and higher turbines as well make for better efficiency. With a lot of factors that affect how well a wind turbine will work, figuring out its production efficiency is not an easy task. No two wind farms are a like, as a result of the variation in terrain, wind and turbine size. Nevertheless, the standard turbine converts approximately 20% of the power in wind to electric power. When the wind is blowing between 5 and 20 mils per hour, that is when the production is the most cost-efficient.
Although it is not as constant as solar, wind power is more efficient, calculated as 20% efficient versus solar at more or less 14%. Wind technology is coming along, and when put side by side with other renewable sources of energy, it is favorable. As a form of alternative energy, it is viewed as increasingly vital, but is not yet employed worldwide. One government that’s investing greatly is Germany.
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