E (wind energy density) =
(1/2)*ρ*V^3
(W
/ p>< p >m2
)
Wind energy density is proportional to the cube of the average wind speed V
P
=
E
*
A
*
Cp
< p>E: Wind energy densityA: Rotor surface area
=
PI
< p>*R ^2 p>
Cp: Wind turbine efficiency, according to Bets theory, the maximum theoretical value is 0.593