The objective of this paper is a contribution to a study of power supply by solar energy system called a common Ferkène north of Algerian desert in the semi-arid area. The optimal exploitation of the system, goes through stages of study and essential design, the choice of the model of the photovoltaic panel, the study of behavior with all the parameters involved in simulation before fixing the trajectory tracking the maximum point the power to extract (MPPT), form the essential platform to shape the design of the solar system set up to supply the town Ferkène without considering the grid. The identification of the common Ferkène by the collection of geographical, meteorological, demographic and electrical provides a basis uniform and important data. The results reflect a valid fictive model for any attempt to study and design a solar system to supply an arid or semi-arid zone by electrical energy from photovoltaic panels. {"references": ["Anne Laburet, Michel Villoz: \u00e9nergie solaire photovolta\u00efque \u00e9dition dunod \u2013Paris, 2006.", "D. Th\u00e9venard and M. Ross \u00abvalidation and Verification of Component Models and System Models for the PV\u00bb, CETC-internal report 2003-035, Canada, 2003.", "D. Turcotte, M. Ross and F. Sheriff. \u00abPhotovoltaic hybrid System Sizing and Simulation Tools\u00bb; article PV Horizon, Canada, 2001.", "Bendjellouli Zakaria : \u00ab Contribution a la mod\u00e9lisation d'une cellule solaire \u00bb M\u00e9moire de Magister. Universit\u00e9 de Bechar. 2008/2009.", "Saheb-Koussa D et Haddadi M. Mod\u00e9lisation d'un g\u00e9n\u00e9rateur photovolta\u00efque dans l'environnement \u00ab Matlab \u00bb. 4th International Conf\u00e9rence on Computer Integrated Manufactur\u00e9e CIP'2007.", "Hadj Mohammed, I. Boualit, S. 1. Hadj Arab, A.Youcef, Application d'un mod\u00e8le g\u00e9n\u00e9ralis\u00e9 de courant - tension d'une cellule photovolta\u00efque pour des mesures ext\u00e9rieures sur le module de type monocristallin, Sharp NT-R5E3E. Revue des \u00c9nergies Renouvelables, pp : 149- 152. (2007).", "Ben moussa W.C, Amara S et Zerga A. \u00c9tude comparative des mod\u00e8les de la caract\u00e9ristique courant-tension d'une cellule solaire au silicium monocristallin. Revue des Energies Renouvelables, pp : 301 - 306. (2007).", "Hamza A, Abbassi H et Kermiche S. Mod\u00e9lisation et commande d'un syst\u00e8me photovolta\u00efque. CIFEM1. (2010).", "Angel-Cid-Pastor M. Conception et r\u00e9alisation de modules photovolta\u00efques \u00e9lectriques Th\u00e8se de doctorat. Universit\u00e9 de Toulouse. France. (2006).\n[10]\tChayawatto N, Kirtikara K, Monyakul V, Jivacate C, Chenvidhya D. DC-AC switching converter modelings of a PV grid-connected System under isolanding phenomena. Renewable energy. Volume. 34. pp : 2536-2544. (2009).\n[11]\tHadj arab, F. chrifa, A. chouder and F.chenlo,grid-connected photovoltaic at CDER-Algeria ,20th European photovoltaic solar energies conference and exhibition . Barcelona .6-10 june 2005.\n[12]\tL.Castaner and S. Santiago, Modeling photovoltaic systems Using Pspice , john Wiley & Sons, LTD.\n[13]\tOfficial document of data planification from wilaya of Tebessa, 2102 \n[14]\tAgency Meteorological maps of Tebessa, 2012.\n[15]\twww.mem.dz 2013\n[16]\twww.sonelgaz.dz 2013\n[17]\twww.solargis.com 2012\n[18]\twww.Atlas.org 2012"]}