Wind power is a clean source of energy that could compensate the electricity shortage and balancing the increasing demands for electricity .The world is facing great environmental threats due to climate change and energy security, the rising cost of fossil fuels and even economic development interests are making wind power to grow worldwide. Before a wind farm can be planned and built, the wind regime at asite must be characterized precisely. The wind data is used as the basis for a planning strategy that places wind turbines on the site where maximum power production. This work provides a valuable techno/economical guideline for the investors in construction of wind farm in the most promising studied locations .The expected outcome will encourage and support decision makers for successful migration toward wind energy. This study includes a mathematical and statistical modeling of wind speed, the planning stages, layout design and economic evaluation of wind energy project. It includes a case study of most promising site and technical and economical evaluation of nine selected wind turbines to investigate the most productivity of wind energy. The sensitivity analysis was adopted.