The numerical wind atlas methodology consists of an analysis part and an application part, which may be summarised as follows:
Wind atlas analysis
This procedure transforms the site-specific predicted wind climate to a more or less site-independent or regional wind climate. The analysis procedure corresponds to the 'up-arrow' in the graphic to the right.
- grid point predicted wind climate corresponds to the observed wind climate (OWC) in the model world
- observed wind climate + site descriptions —> wind atlas data sets = regional wind climate (RWC)
Wind atlas application
This procedure transforms the regional wind climate to a site-specific predicted wind climate. The application procedure corresponds to the 'down-arrow' in the graphic below.
- regional wind climate + site descriptions —> predicted wind climate (PWC)
- predicted wind climate + power curve —> annual energy production (AEP)
Wind farm production
- predicted wind climates + WTG characteristics + wind farm layout —> wind farm wake losses
- annual energy productions + wake losses —> net annual energy production of entire wind farm
The numerical wind atlas methodology is described in more detail in the Wind Atlas for Egypt.
