Wind Turbine Calculator

Size a small wind turbine and estimate energy production.

Average Wind Speed (mph) Annual average at hub height

Rotor Diameter (ft)

Hub Height (ft)

Turbine Efficiency Betz limit is 59.3%, typical is 25-35%

Daily Energy Need (kWh) - Optional


                        P = 0.5 x rho x A x V^3 x Cp

P = Power (W)
rho = Air density (1.225 kg/m3)
A = Sweep area (m2)
V = Wind speed (m/s)
Cp = Power coefficient

Turbine Output