Renewable energy aims to generate more ecological and non-pollutant energy and for that, they are essential for sustainable development of the society.Generation with renewable energies must take into account the deficiencies and limitations that arise because of the intermittent capacity of power supply. Hybrid renewable energy systems based on solar and wind resources are the most promising energy generation power systems due to their complementarity to exploit natural resources; however, the installation of a hybrid solar-wind system is dependent of the weather conditions and that makes the dimension of the system complex.An optimal design of the hybrid system to be implemented becomes critical in order to have the best cost-reliability ratio. Applying intelligent optimization techniques makes possible to find an optimal design in a suitable time. The literature shows that the most used optimization technique is genetic algorithms. This master thesis, proposes to use intelligent technologies to optimally size a hybrid renewable energy system using solar and wind power. The proposed approach requires the system configuration, providing or not grid connection, To God for His infinite blessings. To my parents for their unconditional support, motivation and care. To my husband for making this process simpler with his love, patience and human warmth. Special thanks to my advisor Christian G. Quintero M. for his guidance, constant support, impartial corrections and confidence; for encouraging me to continue at all times and give me his friendship.My teachers Luis Torres, Juan Velez, Ingrid Oliveros, Cesar Orozco for allowing me to grow as a master's student. To Jamer Jimenez for his supervision, friendship and care.To my companions for sharing this path full of challenges with me and make it easier and his unconditional help. To my relatives and those whom I did not name, thank you. vi To my God, parents, family and friends vii General Contents Part I: Introduction and Related Work Motivation, objectives, main contributions and an overview of general concepts used in this thesis dissertation. A review of relevant related work used as reference and inspiration to develop the proposed approach. Part II: Proposed Approach General considerations and implementation of the proposed system for sizing hybrid renewable energy systems approach that seeks to provide broad decisions when designing optimal systems with intelligence techniques Part III: Experimental Results and Conclusions Analysis and discussion of the experimental results, conclusions and future research related to hybrid renewable energy systems based on intelligent systems. viii Detailed Contents CHAPTER 1 .