The estimation of the theoretical wind potential in Senegal was based on the results of measurements carried out by promoters on specific sites, based on the Wind Atlas compiled by Vergnet and based on data from the Word Wind Atlas (WWA).

The Atlas Vergnet and information from the WWA show that the average wind speed is maximum along the Great Coast and that it decreases as one enters the interior. There is, however, a fundamental difference between the WWA and the Vergnet Atlas. The latter shows a much faster decline in average speed as one moves away from the coast than the WWA. At Vergnet, the coastal strip with an average speed between 5.5 and 6 m/s has an average width between 1.6 and 5.3 km, whereas for WWA the band characterized by an average speed of 6 m/s, has a width between 5 and 30 km.

Comparing the Vergnet and WWA data with the average speeds resulting from the measurements, there is a better correspondence between them and the WWA. This is, due in part to the fact that the areas defined by the WWA are wider, and therefore the probability of finding a site in this area is greater at WWA. However, for sites located in the Saint-Louis region, the measured average speeds do not correspond to the average speed zones defined by Vergnet.

Wind production was calculated from WWA data for areas with average speeds of 6 and 5.7 m / s and normalized for an installed rated capacity of 1 MW.

 

Wind speed at 50m height (m/s) Wind speed at 70m height (m/s) Production

G 58

(MWh/year)

Net specific production (MWh/MW.year)
6,0 ± 0,15 6,54 2.175 2.098 ± 341
5,7 ± 0,15 6,21 1.906 1.839 ± 304

 

Theoretical wind generation (MWh / MW.year)

Source : Report Diagnosis based on existing information_MVV DECON_November 2010