Solar photovoltaic power plants connected to the electricity grid suffer production losses due, on the
one hand, to grid instability and, on the other, to the quality of the installation. The general objective
of this work is to improve the performance of a photovoltaic power plant by reducing losses between production and energy injection into the grid. To achieve this, production was estimated using two calculation methods, in order to compare the prediction made by the operating company. The plant's annual performance ratio was calculated, with an estimated value of 88.21%. This value is characteristic of good performance according to the literature (Daher et al. 2018).

Optimization; performance ratio; production; injection; solar power plant.