Wind Energy Feasibility and Energy Education Project Lower Sioux Community

Abstract

The results of wind speed and direction measurements carried out in the Lower Sioux Community during the twelve~month period from November 1, 1995, to October 31, 1996, are reported. The measurement were performed using six wind anemometers and six wind direction vanes installed at four sites in the community. The data presented include the monthly averages of the semi~hour1y wind speeds and of their cubes, monthly wind roses, the probability distributions of the wind speeds and the parameters of Wei bull distributions fitted to them, turbulence intensity data, and total energy roses for each month. The data are presented so as to streamline a comparison with wind energy data at other area sites where comparable records may be available. Possible sites and methodology for such a comparison and errors which may arise in a potential extrapolation of the twelve-month record to longer time periods are discussed.