Several groups working in the photo voltaic field believe that the mon
itoring is a useful way for the development of this form of energy. In
order to learn about Algerian experiences and to make progress toward
s a shared goal, some photovoltaic installations are provided with mon
itoring systems in this article we will try to do a study of the perfo
rmances of a photovoltaic system and analyse the most representative p
arameters of its functioning. The studied system is situated at Adrar
in southern Algeria. The study include also the evaluation of performa
nce indices recommended by Joint Research Centre of Ispra. (C) 1998 Pu
blished by Elsevier Science Ltd. All rights reserved.