Quick Answer
Evaluating the wind resource on your property involves measuring wind speed and direction using an anemometer, and analyzing data from nearby weather stations or the US Wind Map to determine the wind potential.
Assessing Wind Potential
When evaluating the wind potential on your property, consider factors like wind speed, direction, and turbulence. A minimum average wind speed of 7 mph (11 km/h) is often recommended for small residential wind turbines. Use an anemometer, typically mounted at least 30 feet (9 meters) above the ground, to measure wind speed and direction over a period of several weeks or months. You can also consult nearby weather stations or use online tools like the National Renewable Energy Laboratory’s (NREL) Wind Map to get an idea of the wind resource in your area.
Analyzing Anemometer Data
Once you’ve collected data from your anemometer, analyze the results to determine the average wind speed, wind direction, and frequency of turbulence. Look for periods of consistent wind speeds, ideally with an average wind speed above 7 mph (11 km/h). You can also use software to calculate the wind resources’ energy density in kilowatt-hours per square meter per year (kWh/m²/year). This will help you determine if a wind turbine is feasible for your property.
Considering Local Regulations and Costs
Before investing in a wind turbine, check with your local government to see if there are any regulations or restrictions on installing wind turbines in your area. Additionally, consider the cost of purchasing and installing a wind turbine, as well as ongoing maintenance and repair costs. Small residential wind turbines typically range from 2 to 10 kilowatts in capacity and can cost anywhere from $20,000 to $100,000 or more, depending on the size and quality of the turbine.
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