Wind Turbines Efficiency & Comparison Calculator
Power Pwt J.s-1 Wh  kWh/year
density of the air ρ kg.m-3
swept capture area of the wind S m2
wind speed Vwind m.s-1 km/h = mph
wind turbine efficiency Cp %
Cp Betz = %
Cp Darrieus = %
Cp 3-blade = %
Cp American = %
Cp Savonius = %
generator efficiency CG %
gearbox/bearings efficiency Cg %
Tip Speed Ratio (TSR) λ RPM  Cp Betz = %
Wind Energy
W
Betz Limit
W
Ideal Propeller
W
Propeller under Test
W
Darrieus
W
American Multiblade
W
Savonius
W
Efficient Three-blade
W
wind turbines efficiency
Darrieus Wind Turbine Efficiency chart: Cp = ηdarrieus(TSR)
Darrieus wind turbines efficiency
Savonius Wind Turbine Efficiency chart: Cp = ηsavonius(TSR)
Savonius wind turbines efficiency
2009 © Valid HTML 4.01 Transitional