subject: Site Conditions Affecting DIY Domestic Wind Turbines [print this page] Site Conditions Affecting DIY Domestic Wind Turbines
The optimum output of a DIY wind turbine is unquestionably linked to the site conditions within the area of the building. Many domestic properties are lucky enough to benefit from high wind speeds. This is not always the case on sites that do not benefit from the appropriate site features - wind speeds in urban areas can often be affected by the relative height of surrounding buildings, but even the lowest wind speed areas can benefit from wind turbines if theytake the right pre-cautions.
It has been proven that the most important factor within the control of the homeowner is the correct placing of the turbine on the building. An inappropriate location has the ability to dramatically reduce the ability of the turbine. The wind flow over a roof depends on a large number of important variables, including the surrounding topography, the terrain toughness, the height and shape of the building and the roof pitch. Many of these variables cannot be altered or controlled for the purposes of wind power; therefore it is vital that the position of the turbine on the roof and the productivity of the turbine itself are at an optimum.
It must be considered that the higher the turbine tower is placed, the better the efficiency will be as the degree of wind shear increases rapidly with height. This will, in turn, increase the turbine velocity. This cannot be underestimated as even small changes in wind velocity can result in a comparatively huge increase in turbine output. When it comes to assessing the suitability of a site for a DIY turbine, it is possible to use historical meteorological data to ascertain local wind speeds, these can be found quite easily online.
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