Electrical energy production plant comprising • a support structure formed by support poles aligned along a first axis fixed to the ground in any orientation, • on said support structure being present a movement system for photovoltaic panels, suitable for allowing the movement of these devices around at least a first axis, • an electronic processing unit capable of controlling the movement of these receiving devices, • below this support structure there are agricultural installation for crops in different shapes and this electronic processing unit by means of the movement of the receptor devices regulates the shadow generated on the ground according to the need for direct light, or the best conditions of air temperature and soil moisture, in order to optimize the development or growth of these crops, characterized in that such agricultural installations are structures for hydroponic cultivation comprising a complex of tubular elements which develop substantially vertically, in which housings are obtained for positioning plants or the like, in such a way that their roots are placed inside the tubular elements, in these tubular elements, a nutrient solution is flowed from top to bottom which reaches the aforementioned roots, wherein said support structure acts as a constraint for the assembly of tubular elements, wherein command and control equipment of the hydropinic structure such as for example pumps, sensors and actuators are controlled by the electronic processing unit of the plant itself, these equipment are powered by the electricity generated by the plant, wherein the assembly of tubular elements of the structures for hydroponic cultivation is constrained to the support poles of the plant, leaving space for agricultural cultivation on the ground free • a support structure formed by support poles aligned along a first axis fixed to the ground in any orientation, • on said support structure being present a movement system for photovoltaic panels, suitable for allowing the movement of these devices around at least a first axis, • an electronic processing unit capable of controlling the movement of these receiving devices, • below this support structure there are agricultural installation for crops in different shapes and this electronic processing unit by means of the movement of the receptor devices regulates the shadow generated on the ground according to the need for direct light, or the best conditions of air temperature and soil moisture, in order to optimize the development or growth of these crops, such agricultural installations are structures for hydroponic cultivation comprising a complex of tubular elements which develop substantially vertically, in which housings are obtained for positioning plants or the like, in such a way that their roots are placed inside the tubular elements, in these tubular elements, a nutrient solution is flowed from top to bottom which reaches the aforementioned roots, wherein said support structure acts as a constraint for the assembly of tubular elements, wherein command and control equipment of the hydropinic structure such as for example pumps, sensors and actuators are controlled by the electronic processing unit of the plant itself, these equipment are powered by the electricity generated by the plant, wherein the assembly of tubular elements of the structures for hydroponic cultivation is constrained to the support poles of the plant, leaving space for agricultural cultivation on the ground free