This document presents the evaluation and the monitoring of the performances of the first grid-connected photovoltaic system installed in the Center of Studies and Researches on the Renewable Energies (CERER) inaugurated on December 4 th , 2012 by the governmental authorities of Senegal and Tenerife. This mini power plant of 3.15 kWc is a perfect example of the political will of the government which is to reduce the production cost of the electricity, with the diversification of the sources of production, and the greater use of the other sources such as the natural gas, the coal, the renewable energies. The evaluation of the performances of the installation is realized by using the indicators of efficiency and performance as the photovoltaic surface yield, the ratio of photovoltaic performance, the photovoltaic specific yield, and the losses of captures. The obtained results show that a big part of the energy shone during the period of observation was not able to be used further to circumstances such as the losses of conductivity, the heat losses or for example the defects on components. The analysis also shows that a large part of the produced energy is not injected because of the dilapidation of the network, the defects of landing but especially one disjunction sees frequently at the level of the point of injection.

This present study is an evaluation of the degradation of the electric characteristics of the photovoltaic modules of a solar power plant settled in the CERER after 3.3 years of operation. The Center of Studies and Researches on Renewable energy is an institute of Cheikh Anta Diop University of Dakar. It is situated in the district of Hann Bel Air. Since a few years; the CERER contributed a lot research of solutions to the problems of development bound to the energy and to the environment it is all the interest of this evaluation which aims at the improvement and at the planning of the photovoltaic systems. It is what explains the study of this evaluation which was proposed. Moreover the evaluation of the degradation of the solar power plant is centered on the global system, constituted by 18 polycristallins, all identical modules of type STP175P-1, connected in series. So we calculated the rates of degradation of the electric characteristics of modules after a few years of operation such as the characteristics I-V and P-V, the maximal power (Pmax), the maximal tension (Vmax), the maximal current (Imax), the tension in opened circuit (Voc), the current of short circuit (Icc) and the fill factor (FF) in the standard conditions of test (STC). The study of this global system allowed to take up respectively the rates of annual degradation of 2.01% / year, 1.69% / year, 0.34% / year, 1.1% / year and 0.9% / year for the power, the maximal tension, the maximal current, the current of short circuit, the tension in open circuit and the factor (mailman) of shape. We observed that the most degraded performances are: the maximal power, the maximal current, the current of short circuit and the fill factor; while the tension with open circuit shows no significant degradation during these 3.3 years of operation.

This work focuses on quality infrastructure in the solar photovoltaic field in Senegal. On the one hand, it deals with the improvement of the quality infrastructure and on the other hand, conformity assessment accompanied by metrology and performance tests on batteries. We felt it was necessary to revisit the concepts of quality infrastructure and conformity assessment. Then in the improvement of this infrastructure metrology tests were carried out on electrical components by performing maximum error calculations to check the conformity on the voltage, the current, frequency and resistance of electrical quantities at a metrology laboratory, the African Laboratory of Metrology and Testing (LAME). We have also carried out compliance tests on batteries with the measuring equipment of the Laboratory for Quality Control of Solar photovoltaic components (LCQS), a laboratory for testing photovoltaic solar components in Senegal. The study of the batteries covers two (2) elements in one cycle with a nominal capacity of 1080Ah. The capacities calculated after the tests performed on the two (2) elements are respectively C1(t)=1223Ah and C2(t)=1318Ah.