Abstract: Described herein is a photovoltaic plant (1; 1?; 1?; 1??) including a plurality of photovoltaic modules (PV) arranged in arrays (2) spaced with respect to each other, and wherein the photovoltaic modules (PV) of each array (2) have a first assigned inclination (?-1) with respect to a reference direction. Each array (2) of photovoltaic modules (PV) is associated to an array (4; 4?; 4??) of mobile reflection devices (RF) set adjacent thereto, and at least one array (4; 4?; 4??) of mobile reflection devices (RF) is located in a space between successive arrays (2) of photovoltaic modules. The mobile reflection devices (RF) of each array have a second assigned inclination (a2) with respect to a reference direction.