Nov 18

Wind Speeds At 30 And 50 Meters

Wind Power Add comments

The following shows the difference in wind speed at 30 and 50 meters in Minnesota.

Because in the Harvestable Wind Power equation Wind Velocity is cubed a 2 meter per sec (m/s) increase will triple your kWh output.

For example 4.47m/s (10mph) to 6.47m/s (14.5mph) will make the following difference.

(6.47^3) / (4.47^3) = 3.03

Here is the equation for Wind Power.

HWP = 0.5 x 1.23 x SA x WV^3 x cP

(HWP) Harvestable Wind Power (w/hr) = 0.5 x AD (air density kg/cu m) x SA (sweep area m^2) x WV^3 (wind velocity m/s) x cP (coefficient of performance Betz limit 59.26%, R^1 or Copper loss, linear power curve to cubic curve matching — 0.25 for most systems)

Minnesota Wind Speed At 30 Meters Minnesota Wind Speed At 50 Meters