Comparison of wind speed, wind directions, and weibull parameters for sites having same wind power density

Abstract

Energy sustainability is one of the main issues of present world because of the fast depletion of fossil fuels such as coal, petroleum, natural gas, etc. For energy sustainability, renewable energy sources like solar, wind, and biomass are successfully being exploited. The installed capacity of wind power has already reached 32.7 GW, which is about 55% of total renewable energy power plant capacity installed in India. To establish a wind power plant, wind power density of a site is to be estimated. Wind power density is an important parameter which indicates the wind energy potential of a site before installing a wind power plant. Wind is statistically represented by Weibull parameters k (shape parameter) and c (scale parameter). In this paper, sites with same wind power density are selected and their monthly mean wind speed, monthly standard deviation of mean wind speed, and Weibull parameters are compared. The Akal (Rajasthan) site is compared with Uswad (Maharashtra) site and Bassi (Rajasthan) site. Also, Lamba (Gujarat) site is compared with Taralkatti (Karnataka). Average, quadratic average, cubic average, and median of monthly Weibull parameters are calculated and compared. For the considered sites with same wind power density, the variation in calculated statistical parameters are found to be less. Percentage variation in statistical values of monthly Weibull parameters for Bassi and Usawad (in reference to Akal site) and Taralkatti (in reference to Lamba site) are calculated. Wind pattern for all considered sites are shown by drawing wind rose diagram using excel spreadsheet.