REUK.co.uk - Wind Turbine Output Calculator
Rotor Diameter: metres (0 to 150m).
Mean Wind Speed: metres per second (0 to 12m/s).
Cut-in Speed: metres per second (0 to 7m/s).
Cut-out Speed: metres per second (10 to 25m/s).
Turbine Efficiency: percent (10 to 59%).
Weibull Shape Parameter: (1-3, so use 2 if unsure)

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Predicted Turbine Output 990 kWh