There is described a covering system, particularly for greenhouses, with an integrated photovoltaic installation, intended to cover at least part of the surface of at least one sloping section of a covering structure, particularly for a greenhouse (1) for agricultural or flower growing purposes, the system comprising a plurality of photovoltaic devices (5) having a capture surface (7) comprising coplanar photovoltaic panels (8), the capture surface (7) being orientable by means of an orientation control operation about a respective axis (X), the devices (5) being placed on the at least one sloping section beside each other with the corresponding orientation axes substantially parallel with each other and with a spaced-apart relationship in such a manner that an opening (12) is defined between capture surfaces (7) of adjacent devices in the sloping section of superficial extent, which is variable in accordance with the orientation movement of the capture surfaces (7), and in which, at the at least one sloping section and between each pair of photovoltaic devices (5) of the plurality which are adjacent to each other, the system comprises at least one covering means (15) with variable geometry and having a continuous surface such that it can be fixed between facing sides of the respective capture surfaces (7) of adjacent devices (5) in order to ensure the closure of the sloping section covering at the opening of variable extent, regardless of the relative orientation position between the capture surfaces (7).La présente invention concerne un système de couverture, en particulier pour des serres, avec une installation photovoltaïque intégrée et destiné à recouvrir au moins une partie de la surface d'au moins une surface inclinée d'une structure de couverture, en particulier pour une serre (1) à usage agricole ou horticole. Le système comprend une pluralité de dispositifs photovoltaïques (5) ayant une surface de capture (7) comprenant des panneaux photovoltaïques coplana
