The ratio of output shaft power and input shaft power determines efficiency. It is written like this:
{\\eta }_{Turbine}=\\frac{{W}_{Shafts}}{{W}_{Water Horsepower}}=\\frac{\\omega {T}_{Shafts}}{\\rho gHv}ηTurbine​=WWaterHorsepower​WShaft​​=ρgHvωTShafts
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Efficiency is determined by various elements, including shafts diameter, blade speed, blade number, load attached to the shafts, and so on. Compared with other conventional turbines, turbine efficiency is often high. Efficiency could potentially reach 97 percent for smaller applications.