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The transition towards sustainable energy systems underscores the significance of hydrogen production through renewable resources. This study investigates the potential for solar-hydrogen conversion in the Souss-Massa region using a comprehensive approach that integrates the Analytic Hierarchy Process (AHP) and Geographic Information System (GIS) tools. Ten distinct criteria, grouped into technical and economic categories, are evaluated to identify optimal areas for hydrogen generation, with environmental criteria being used as exclusion factors. Hydrogen production potential emerges as the primary determinant, with the western region, emerging as a focal point for solar-hydrogen projects. A comparative analysis between AHP and Fuzzy AHP (FAHP) results demonstrates the robustness of the methodology. Sensitivity analysis sheds light on the impact of criteria weighting on suitability outcomes, providing valuable insights for decision-makers and energy stakeholders. The study further quantifies avoided CO2 emissions and presents compelling Key Performance Indicators (KPIs) such as the Levelized Cost of Hydrogen (LCOH) and the Levelized Cost of Electricity (LCOE). The LCOE is found to be as low as 35.75 $/MWh, positioning the proposed solar-hydrogen conversion selected location as a cost-effective energy site. The LCOH for the designated location stands at 2.9 $/kg, reflecting its competitive stance. These findings collectively underscore the environmental and economic viability of sustainable hydrogen production in the Souss-Massa region. [ABSTRACT FROM AUTHOR]