WIND POWERCLASS
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