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This work presents a bibliographic study and classification of solar tracking systems. A solartracker is a device that follows the sun position, in order to keep the solar panel or thermal concentratorperpendicular to the sun’s beam, maximizing the energy transfer. The main objective of this work is to carryout a survey on the main types of solar trackers, classifying them according to their main characteristics,listing the benefits and difficulties in their development and implementation.