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The objective of this work is to show, in the solar energy converting systems applications as photovoltaic or thermal, the interest of solar tracking system compared to those fixed, south facing and inclined at an optimal angle or a horizontal plane.Our application is to realize and study the performances of sun tracking system prototype allowing the permanent orientation of the PV module in opposition to incident radiation during the day; hence it permits to increase the output energy and the conversion efficiency For a state of sky completely or almost clearly, a solar tracking plane enables use to recover an average 27.48% from the gain of energy compared to fixed system; however , our device is able to deliver a maximal power and best conversion efficiency compared with a fixed module oriented by tilt angle 30° identical with the latitude of the site.

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