Learn The Facts On Wind Turbines For Homes
Given a constant amount of wind, wind power represents one of the cheapest alternative sources of energy at present
. Despite the variability of wind flow that powers it, wind turbines still provide great support to a solar system, on top of being a reliable all year long power source. Recent developments in turbine designs and construction, have increased the components reliability, while cutting down on the number of movable parts, thereby resulting in better-made turbines. These days, wind turbines for homes, make up the essential core of dependable energy systems.
Micro Wind Turbines, on the other hand, are scaled down wind turbines that generate electricity for hybrid plants: that in turn juice up heated pump systems. Depending on the requirement, output, AC or DC power may be drawn on to charge batteries for use in transport and lighting, or to power water heaters, florescent lights, and home appliances.
The power generated from micro wind turbines may also be used for traffics lights, electric fences, even remote phone booths. This type of turbine proves highly useful for rural locations with inadequate resources. Micro Wind Turbines combine the best of both worlds in solar and micro wind technologies.
It was back in the Nineties, during the search for an off-the-grid power source, that wind turbines became vogue. Prior to becoming a green movement, wind turbines were more commonly utilized in yachts and boats. In terms of design, a Micro Wind Turbine is fairly simple. It is made up of a blade with a hop that catches wind as it turns; at the blade's focal point is a shaft that turns the turbine, creating energy that is both clean and efficient.
A key consideration in wind power generation is average wind speed at an installation site. One type of turbine may have an optimal output at a location with an average wind speed of 15 mph, but may not perform as well in one with a rating of 20 mph. In general, these low speed generators typically have longer rotor blades or a number of short, wide blades that maximize power draw given minimal wind. In contrast, high-speed generators are made of sturdier materials, with a short blade configuration that protects it from damage during intensely strong winds.
Before deciding on which turbine type is best suited for a given site, it is recommended that continuous measurements in wind speeds be conducted for spans of time, say a few months or ideally, up to a full year. The longer the measurement period, the more accurate average winds speeds are calculated and maximum winds speeds determined. With these data on hand, it will be easier to choose which turbine may maximize its capability, given a certain wind speed average, and whether it could withstand extreme wind conditions.
In terms of energy requirement, there is a choice between roof mounted and mast mounted micro wind turbines. The roof mounted type generates 1 to 2 kW of electricity. The mast mounted one, which is relatively bigger in size as it is mounted in an erect fashion, creates 2 to 6kW of clean energy.
Generally, Micro Wind Turbines produce DC electricity that is converted to AC for use with outside equipment and appliances. These turbines are equipped with a battery that may be hooked up to the National Grid, where excess power generated is sent. In essence, this is the equivalent to sharing clean energy with others and lessening the need to pay for dirty energy. More importantly, Micro Wind Turbines for homes reduce carbon footprints left in the environment.
by: Lance Thorington
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