Water and Energy for Food Grand Challenge (WE4F) is a joint international initiative aimed at enhancing the sustainability of agricultural food value chains by improving water and energy efficiency. It offers financial support, technical assistance, and investment facilitation to innovations in the water-food, energy-food, and water-energy-food nexus. The target audience includes smallholder farmers and food companies, particularly in developing countries. WE4F's unique selling proposition is its multi-sector approach, combining water, energy, and food efficiencies to promote climate resilience and sustainable development. This approach attracts multiple donors and resources, supporting scalable innovations globally[1][2][3].