The cut-in wind speed is the minimum wind speed at which the rotor begins producing usable electrical power. Below this point, the wind does not provide enough force to overcome system losses such as blade drag, drivetrain resistance, generator losses, and control system needs. If you want to understand how wind speed affects power generation in turbines, the key is to look at the turbine power curve and the limits built into the machine. Wind power is one of the fastest-growing renewable energy sources, but its efficiency depends heavily on one key factor: wind speed. Oil and gas prices have yo-yoed significantly in recent weeks due to the stranglehold Iran has on the Strait of Hormuz, a 39km passage that carries around 20 per cent of. The factors that affect wind power generation include various natural and technical conditions such as wind speed, air density, blade design, turbine height, and site location.