How important is wind speed in my area?


Wind speed is critical to the successful performance of every wind turbine. The geographic features of the surrounding area have a big impact on the wind regime seen at any one location. As you get higher above the ground, the stronger and less turbulent the wind is. It must be remembered that the power available from the wind increases with the cube of the wind speed - which means if you double the wind speed, the power available increases by a factor of eight!

Large areas that are flat and unbroken by trees (for example large lakes - Lake Ontario, Lake Erie, etc.) are very good sites for wind turbines. Valleys are usually not good areas, unless the prevailing winds run up and down the length of the valley.

Generally speaking wind turbines are not a good source of power if the local average wind speed is below 12 kph.