Table 3: Testing acceptable ranges for wind speed and direction.

Parameter

Criteria for

Validation

Wind Speed -Horizontal

Average

offset < Avg. < 25 m/s

 

Standard Deviation

0 < Std. Dev. < 3m/s

 

Maximum Gust

offset < Max < 30 m/s

Wind Direction

Average

0° < Avg. ≤ 360°

 

Standard Deviation

3° < Std. Dev. ≤ 75°

 

Maximum Gust

0° < Max. ≤ 360°

Wind Speed: Vertical

(optional)

Average

offset < Avg. <± (2/4) m/s

 

Standard Deviation

offset < Std. Dev. <± (1/2) m/s

 

Maximum Gust

offset < Max. <± (3/6) m/s

Source: NREL, 1997.