Greenhouse with photovoltaic system

An integrated unitary device that associates four different systems, comprising:

• a greenhouse or a structure in metallic carpentry constructed as a modular structure having, in a roof of the modular structure, a walkway-gutter channel;
• a photovoltaic system having a tilting load-bearing frame, a central flat surface installed with photovoltaic panels, and two lateral wings configured as two flat surfaces that are inclined with respect to the central surface, and that are installed with reflective panels reflecting solar radiation;
• a reflective system comprising the reflective panels, which direct the solar radiation reflected to a capturing surface of the photovoltaic panels, a space being provided between the photovoltaic panels and the reflective panels, so as to dispose of heat produced by the photovoltaic panels and an outflow of wind;
• and
• a water system that cools and washes the photovoltaic panels and comprises a double piping circuit that develop laterally, the double piping circuit comprising a first pipe disposed on one side and a second pipe disposed on an opposite side along an entire length of the capturing surface of the photovoltaic panels, the water system further comprising a switching gate valve that is configured to reverse a flow of water alternately from a first piping circuit of the double piping circuit to a second piping circuit of the double piping circuit, and vice versa, from the second piping circuit to the first piping circuit.