Wind turbines have historically been limited to rural areas. However, this is about to change as vertical axis wind turbines are being introduced for residential areas. Vertical axis wind turbines look more like an egg whisk than a windmill, the main benefit being that they are unaffected by wind direction so are better suited for urban areas. Residential turbines can be installed on the roof or tower and feed energy into the building through an inverter. Urban Green Energy is about to introduce the vertical axis wind turbines into Australia to provide another renewable energy option for the home.
The small vertical access turbine ‘eddy’ which has been created for home or office use, starts turning in 8 mile per hour winds. It is 4′6” wide by 5′3” tall. Unlike horizontal axis wind turbines no mechanism is needed to turn the wind turbine towards the wind meaning better performance in areas where a tall tower isn’t feasible, obstacles are nearby or the wind is more turbulent. Therefore they are better suited for harvesting air flow found around buildings and other obstacles, situations more common in areas where people live. They are also quiet.
For more information check out the Urban Green Energy website.