Options 1 & 2: Free Estimates
Option 1 - Use data from the Canadian Wind Atlas
Environment Canada produces the Canadian Wind Atlas to help you determine the approximate wind in your area. In the Planning for Your Turbine section of our website, our Ballpark Cost estimator uses this Canadian Wind Atlas data to provide you with the estimated wind speed and wind sheer factor in your postal code area. Because the Canadian Wind Atlas offers only an average wind speed in your area, if you have more accurate historical wind data available for your desired location, you should use it.
Option 2 - Look for visual clues on your property
Visual clues around the proposed site can give you an indication of prevalent wind speeds. One of the best clues is “flagging”, which involves indirect measurement of the wind resource based on an area’s vegetation. Trees, especially conifers or evergreens, can be permanently deformed by strong winds. This deformity, known as ’flagging’, can be used to estimate the average wind speed for an area. The figure below (courtesy of the U.S. Dept. of Energy Small Wind Buyer’s Guide) summarizes ‘flagging’.