Wind energy assessment as a potential alternative energy source in Kisii and Kisumu towns in Kenya
Nyasani, Erick Isaboke
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As a developing nation, Kenya urgently needs new sources of affordable and clean energy. Wind energy is potentially attractive because of its low environmental impact and sustainability. This work investigates the wind power production potential of Kisumu and Kisii towns in Kenya. Wind speed data over a 10-year period (2002-2012) from Kisumu and Kisii meteorological stations are presented. Frequency distributions of wind speeds and wind power densities at two different heights, seasonal variations of speed, and estimates of power likely to be produced by small turbines are included. To assess the wind power potentials, the Weibull parameters are calculated by different methods in the analysis of wind speed data in order to establish a better method for estimation. The wind speed distributions are represented by Weibull distribution and also by Rayleigh distribution, which is a special case of the Weibull distribution for k = 2.The yearly values of k and the average annual Weibull distributions for the two towns calculated will be used to predict the type of wind turbines suitable in the two regions under study. The data will be analyzed by use of Weibull distribution model with the help of computer software microcol origin (version 7).