|
Power
Class |
Wind
Power
(W/m2) |
Speed*
(m/s) |
 |
1 |
<200 |
<5.6 |
| 2 |
200-300 |
5.6-6.4 |
| 3 |
300-400 |
6.4-7.0 |
| 4 |
400-500 |
7.0-7.5 |
| 5 |
500-600 |
7.5-8.0 |
| 6 |
600-800 |
8.0-8.8 |
| 7 |
>800 |
>8.8 |
|
*Equivalent wind speed at sea level
for a Rayleigh Distribution |
|
Annual
Average Wind Resource Estimates in the Continguous United States
From the Battelle Wind Energy Resource Atlas
See also:
Basic Principles of Wind Resource Evaluation
for a discussion of the Power Class categories. |
