WIND POWER
CLASS

WIND CHARACTERISTICS 50 METERS ABOVE GROUND*
 

POWER
(W/m2)

 

SPEED
(mph)

 

1

 

0-200

 

0-12.5

 

2

 

200-300

 

12.5 -14.3

 

3

 

300-400

 

14.3 - 15.7

 

4

 

400 - 500

 

15.7 - 16.8

 

5

 

500 - 600

 

16.8 - 17.9

 

6

 

600 - 800

 

17.9 - 19.7