WindLab Pro · global wind resource assessment

Weibull, Rayleigh, wind rose, WPD & AEP from real hourly wind data.

Select a site by map, coordinates, or location search. The app downloads hourly wind speed and direction from Open-Meteo Historical Weather, performs height correction, fits Weibull/Rayleigh distributions, computes wind power density, and generates publication-ready plots with figure export.

Hourly and monthly wind speed

Raw hourly series with monthly average trend.

Wind-speed frequency distribution

Measured histogram with Weibull and Rayleigh PDFs.

Cumulative probability and exceedance

Empirical CDF, Weibull CDF, Rayleigh CDF, and duration curve.

Wind rose

Directional frequency by speed class. Directions are meteorological “from” directions.

Monthly wind power density

Mean WPD computed from hourly ρV³/2.

Diurnal-seasonal heatmap

Mean wind speed by month and hour.

Sector statistics and distribution parameters

Numerical summary for reporting and verification.

Methods implemented: Weibull MLE/moment fitting, Rayleigh special case with k = 2, wind power density from hourly ρV³/2, power-law/log-law vertical extrapolation, wind rose by sector and speed class, and simplified turbine AEP from a cubic-to-rated power curve.