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Perform Advanced Analyses

Delve into the details.

Delve into wind shear, turbulence intensity, and other aspects of the wind regime. Estimate wind turbine energy production and predict extreme wind speeds.

Wind shear

Display the wind shear versus direction, month, hour of day, wind speed, or any combination thereof. Filter by year, month, direction sector, flag, or any data column. Use all wind speed sensors or just a subset. Choose graphical or tabular format.

Turbulence

Display turbulence intensity versus wind speed, wind direction, month, or time of day. Filter by wind direction, flag, and other criteria. Graphically compare the measured turbulence to the standard IEC turbulence categories.

Tower distortion

Plot the ratio of any pair of wind speed sensors versus direction to spot the effects of tower shading.

Wind speed distribution

Plot frequency histograms of any subset of the data set, and graphically compare several different Weibull fitting algorithms.

Wind turbine energy output

Estimate the gross and net energy output and capacity factor of a wind turbine in the measured wind regime at any hub height, accounting for the effects of varying wind shear and air density. Choose from the library of over 100 wind turbines, or add your own.

Extreme winds

For data set extending over several years, this module calculates the best-fit Gumbel distribution and predicts the maximum wind speed expected within a 25-year, 50-year, or 100-year return period.

Probability of exceedence

Analyze the distribution of annual mean values for any data column to calculate P50, P75, P90, and P95 values.