In Mediterranean countries, water use for irrigation accounts for more than 70% of water consumption and an important hydric stress is registered due to increasing population and climate change. Water losses due to non-efficient irrigation systems, limited reliance on non-conventional water (NCW), scarce capacities of institutions to enforce effective water management plans and lack of awareness of modern solutions at farm level, are the most common issues to deal with. PROSIM will face these challenges focusing on both water demand and supply for irrigation. The project will bring innovative solutions combining water use efficiency and NCW and build local capacities to adopt/upscale them. Cross-border capacity building and roadmaps and plans for improved water management based on project results will be carried out while enhancing public-private cooperation will be fostered together with investments for the adoption/upscale of the proposed solutions.