Table 9 Wind power classification38,40,41.

From: Wind energy assessment and hybrid micro-grid optimization for selected regions of Saudi Arabia

Class

Nature

Wind power density\(\:\:{\varvec{w}/\varvec{m}}^{2}\)

Average wind speed (m/s) for 10 m height

Description

1

Poor

\(\:\le\:200\)

\(\:\le\:4.4\)

Overall, it is not ideal for large-scale wind power production.

2

Marginal

201–300

4.4–5.1

Limited potential for wind energy generation. Some small wind projects might be viable.

3

Fair

301–400

5.1–5.6

Moderate potential for wind energy development. Small to medium wind projects could be feasible.

4

Good

401–500

5.6–6.0

Good potential for wind energy projects. Suitable for medium to large-scale developments

5

Excellent

501–600

6.0–6.4

Excellent potential for large-scale wind energy projects.

6

Outstanding

601–700

6.4–7.0

Very high potential for large-scale wind projects, often with optimal economic returns.

7

Superb

700

7.0

Superb wind conditions, ideal for extensive and highly efficient wind energy developments.