Here you get outlined information on Wind Power Generators which are also widely known as Wind Turbines. Their differences with Wind Mills. How they work and how they can be installed according to your needs and space.
Aruba's Wind Park at Vader Piet
How they work
Wind Power Generators are also called home wind turbines, home wind generators, wind power units, wind energy converters or aerogenerators, when they are to produce electricity for the home. It is called wind mill power or simple windmill if the extracted wind energy is used for mechanical purposes like pumping water, grinding stones, cutting lumber to name some.
Wind Power Generators can be mounted on roofs or on masts depending on it’s size. Usually a 2kW or lower can be mounted on a roof.
Electric Generators, how they produce electricity
To generate a substantial voltage output we wound a wire to form an electric coil. There are other factors to consider to determine the amount of electricity that will be generated. The speed of the movement between coil and magnetic field. The number of loops on the coil. The physical distance between the coil and the magnet. The intensity or strength of the magnetic field. All electric generators work on this principle.
The consumption of the average home in U.S. is about 900kWh a month. The fastest growing market is the grid-connected, residential models 1 to 10kW.Small domestic wind systems normally require permission from your local authority. If you are not familiar with electrical installation or electricity, you better acquire an electrician who is known with the electrical codes in your country. Remember safety comes first when you deal with electricity and when installing a mast.
Windturbine Shete Aruba
Like solar panels home wind power generators can be grid tied (connected to the grid) or can be used as stand-alone or off grid (disconnected from the utility grid). With a grid tied system, any surplus electricity generated, can be sold back to the utility company so reducing your electricity bill. On a stand-alone or off-grid system the surplus energy can be stored in batteries for the times there will be lesser or no wind.
Wind power generators can also be installed in conjunction with solar panels and a back-up Diesel DC-Generator to produce the necessary power for your needs. Such a configuration is called a hybrid system. It is the most efficient and economical arrangement for a renewable energy system. The two supplies will complement each other.
At night the wind blows and when the sun is up the wind becomes lesser. The Diesel Genenerator function as back-up to charge the batteries in times of extreme little production from both the sun and the wind. The sun’s energy is at its maximum in summer months, while the wind’s energy is down. And the opposite takes place in the winter months.
We distinguish between two types of wind power generators.
The horizontal axis wind turbine has the rotor shaft and the generator shaft in a horizontal position and pointing into the wind. The rotor and the generator are both on top of the tower or mast. It has a yaw drive assembly that allows the turbine to face directly into the wind.
Small turbines use a wind vane to point into the wind. Large turbines use wind sensor in combination with servo motor to do the job. When pointed into the wind, the wind power turns the wind-blades and with it the rotor. In small turbines the rotor shaft is directly connected to the generator while in large turbines it is connected through a gearbox to speed up to rotation of the electrical generator.
HAWTs come in two types the upwind and the downwind machines. The upwind type is the traditional every day version where the blades are at the wind side. The downwind type receives the wind in the back of the blades. It needs no additional mechanism to keep it in line with the wind. But it is vulnerable to fatigue failures due to cyclical turbulence behind the mast.
Vertical axis wind turbines have their main axis perpendicular to the ground. The generators and gearboxes can be mounted close the ground. VAWT perform well in both rural and urban surroundings.
They can be mounted on top of the roof. They are simple to install and easy to maintain. Their operation is quiet.
For additional information on wind energy
We include here some links to important sites for the consumer.
Publications on Research and Development go to
The most important factor to determine whether a wind project is feasible for you is the level of wind resource available at your site.
Check with the utility company for any applicable rules.
Enjoy the work well done and best of all…
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