The relationship between tip speed ratio and coefficient of power for H-Darrieus type wind turbine model is shown in figure 15. Tip speed ratio for two blades wind turbine, 0 – 0,1 has low coefficient of power (Cp), but the coefficient Cp for three and four blades wind turbines are higher. Three blades type wind turbine has cut in speed at 7 m/s related with TSR (tip speed ratio) = 0.409 and Cp = 0.828. Rated wind speed at 10 m/s has TSR = 0.522 and Cp = 1.098, and cut in speed at 15 m/s has TSR = 0.622 and Cp = 0.937. Four blades type wind turbine has cut in speed at 6 m/s related with TSR = 0,375 and Cp = 1.309. Rated wind speed at 8 m/s has TSR =0.468 and the wind turbine produce Cp = 1.641. Cut out speed at wind speed = 15 m/s has TSR = 0.600 and Cp = 0.940