3.3.2. Wind turbine energy output and capacity factor
The annual output energy and the capacity factor of large and small different wind turbines for the eight stations were calculated. The results obtained are given in Tables 6 and 7.
Table 6 depicts the capacity factors of the wind turbines. It can be noted that the highest capacity factor is obtained in the site of Sakhor for the all used wind turbines. The value was between 19% (Inclin-600) and 39% (Yellow-Sand) in contrast in the site of Gandon, the capacity factor was lowest, and it varies between 5 % and 18 % for Ecotècnia 80 and Yellow-Sand respectively. It can be noted, also, that the capacity factor is highest for the wind turbine Yellow-Sand in the all site and lowest for the wind turbine Ecotècnia 80 over the sites. That is because of the wind turbine Yellow-Sand has the lowest nominal speed in contrast of the Ecotècnia 80 has a greater nominal speed. In general the capacity factor is greater for the wind turbines which the nominal speed is lower. This remark was observed in the one hand for the large wind turbines and on the other hand for the small wind turbines.