Solar-Hydrogen Desalination for Arid Coastal Regions: A Tunisian Case Study in Sustainable Water and Energy Co-Production

Abstract: This study presents an integrated renewable energy solution for simultaneous desalination and green hydrogen production, optimized for water-stressed coastal regions with high solar potential. The system combines mechanical vapor compression (MVC) desalination (1.5 m³/h capacity) with photovoltaic power (247 kWp) and electrolytic hydrogen storage (8.1 kg/day), enabling 24/7 operation in Mediterranean climates like Tunisia [1].