Wind speed prediction for site selection and reliable operation of wind power plants in coastal regions using machine learning algorithm variants

Sustainable Energy Research

Table 4 International standards of wind power generation classification

Height (m)		10		30		50
Generation scale	Wind power class	Average wind velocity (m/s)	Wind power density (W/m²)	Average wind velocity (m/s)	Wind power density (W/m²)	Average wind velocity (m/s)	Wind power density (W/m²)
Poor	1	0 – 4.4	0 – 100	0 – 5.1	0 – 160	0 -5.6	0 - 200
Marginal	2	4.4 – 5.1	100 – 150	5.1 – 5.9	160 – 240	5.6 – 6.4	200 – 300
Moderate	3	5.1 – 5.6	150 – 200	5.9 – 6.5	240 – 320	6.4 – 7	300 – 400
Good	4	5.6 – 6.4	200 – 250	6.5 – 7	320 – 400	7 – 7.5	400 – 500
Excellent	5	6.4 – 7	250 – 300	7 – 7.4	400 – 480	7.5 – 8	500 – 600
Excellent	6	7 – 7.5	300 – 400	7.4 – 8.2	480 – 640	8 – 8.8	600 – 700
Excellent	7	< 7.5	< 400	8.2 – 11	640 – 1600	< 8.8	< 700