How much power will a wind turbine produce?

Calculating the amount of power that a wind turbine can actually produce depends on the speed of the wind at the site of the wind turbine, and the turbine power rating. Wind turbines are usually the most productive with wind speeds at 33 mph. With constant wind speeds, the diameter of rotor, or blades is what determines how much clean energy is produced by the wind turbine system.

Rotor Size and Maximum Power Output
Rotor Diameter (meters)	Power Output (kW)
10	25
17	100
27	225
33	300
40	500
44	600
48	750
54	1000
64	1500
72	2000
80	2500