Wind Power Density
Estimates of wind power density are presented as wind class, ranging from 1 to 7. The speeds are average wind speeds over the course of a year, although the frequency distribution of wind speed can provide different power densities for the same average wind speed.
| Class | 10 m (33 ft) | 30 m (98 ft) | 50 m (164 ft) | |||
|---|---|---|---|---|---|---|
| Wind power density (W/m2) | Speed m/s (mph) | Wind power density (W/m2) | Speed m/s (mph) | Wind power density (W/m2) | Speed m/s (mph) | |
| 1 | 0 - 100 | 0 - 4.4 (0 - 9.8) |
0 - 160 | 0 - 5.1 (0 - 11.4) |
0 - 200 | 0 - 5.6 (0 - 12.5) |
| 2 | 100 - 150 | 4.4 - 5.1 (9.8 - 11.5) |
160 - 240 | 5.1 - 5.9 (11.4 - 13.2) |
200 - 300 | 5.6 - 6.4 (12.5 - 14.3) |
| 3 | 150 - 200 | 5.1 - 5.6 (11.5 - 12.5) |
240 - 320 | 5.9 - 6.5 (13.2 - 14.6) |
300 - 400 | 6.4 - 7.0 (14.3 - 15.7) |
| 4 | 200 - 250 | 5.6 - 6.0 (12.5 - 13.4) |
320 - 400 | 6.5 - 7.0 (14.6 - 15.7) |
400 - 500 | 7.0 - 7.5 (15.7 - 16.8) |
| 5 | 250 - 300 | 6.0 - 6.4 (13.4 - 14.3) |
400 - 480 | 7.0 - 7.4 (15.7 - 16.6) |
500 - 600 | 7.5 - 8.0 (16.8 - 17.9) |
| 6 | 300 - 400 | 6.4 - 7.0 (14.3 - 15.7) |
480 - 640 | 7.4 - 8.2 (16.6 - 18.3) |
600 - 800 | 8.0 - 8.8 (17.9 - 19.7) |
| 7 | 400 - 1000 | 7.0 - 9.4 (15.7 - 21.1) |
640 - 1600 | 8.2 - 11.0 (18.3 - 24.7) |
800 - 2000 | 8.8 - 11.9 (19.7 - 26.6) |
Read more about this topic: Wind Profile Power Law
Famous quotes containing the words wind and/or power:
“If there is nothing new on the earth, still the traveler always has a resource in the skies. They are constantly turning a new page to view. The wind sets the types on this blue ground, and the inquiring may always read a new truth there.”
—Henry David Thoreau (1817–1862)
“Without the power of the Industrial Union behind it, Democracy can only enter the State as the victim enters the gullet of the Serpent.”
—James Connolly (1870–1916)