The present study aims at investigating of factors affecting in enhancing the energy capture capabilities of performance wind turbine. The considered parameters are turbine swept area, air density, wind speed, and power coefficient as a function of pitch angle. A tool aerodynamic analysis based on the Blade Element Momentum Theory (BEMT) is developed to study the parameters that affect the power curve of blade wind turbine. The study shows that the operational parameters has a direct effect on the performance of wind turbine which will lead the developers and researchers to focus on the highest priority parameter that should be considered for optimizing the new generations of wind turbines blade.