This study presents a comprehensive examination of renewable energy sources across distinct Colombian regions, employing the AHP and FAHP methodologies. Tailoring the selection of alternatives, including solar photovoltaic, offshore/onshore wind, biomass, geothermal, and large- and small-scale hydropower, to each region's specific characteristics aims to provide sustainable solutions for the nation's escalating energy demand. The weighting process incorporates multidimensional criteria encompassing social, economic, technical, and environmental aspects, further broken down into sub-criteria for meticulous evaluation. Results unveil distinct weightings and hierarchies for each region, shaped by the variability in energy potential and resource availability. Methodological differences yield notable disparities in outcomes, with solar photovoltaics emerging as a leading option in most regions, securing a 60% preference due to its viability and potential. This emphasizes the necessity of considering unique regional characteristics when selecting the most suitable energy source. Furthermore, the study emphasizes the significance of introducing innovative metaheuristic methods, notably AHP and FAHP, into the Colombian energy sector. In a geographically diverse country like Colombia, where regional variability demands flexible approaches, these methodologies emerge as crucial decision-making tools. Overcoming the limitations of traditional approaches, they provide a precise and informed assessment, adeptly managing uncertainty and subjectivity in dynamic environments. This research not only offers a valuable guide for the effective implementation of renewable energies in Colombia but also underscores the importance of accommodating regional variability in the transition towards a cleaner and more sustainable energy system. The application of metaheuristic methods contributes to more effective strategic planning, fostering environmental sustainability within the Colombian context. Ultimately, the combination of detailed assessment, specific weighting, and the application of advanced methodologies presents a comprehensive approach to addressing energy challenges in a country as diverse as Colombia.