The world energy context being marked by a policy of environmental protection, energies and more particularly renewable energies are one of the key elements of sustainable development today in full expansion. Their entry into the electrical grids is strongly encouraged. Solar PV energy sources are strongly integrated in high power electrical networks, raising concerns about their future static and dynamic stability. The market for electricity generation from solar energy has been growing strongly for the last decade. In this context, photovoltaic generators connected to the electricity distribution network are becoming increasingly important. Several authors emphasize the interest of the statistical properties of the parameters involved as a function of the possible illumination levels, and, in particular, the average modulus temperature as a function of the illumination.