Abstract
Water, energy, and food (WEF) scarcity has been realized as a global issue, and several strategies have been proposed to solve this problem. The WEF Nexus is a novel concept in resources management that integrates and considers feedback connections of water, energy, and food production and consumption in a single framework. The discussion of WEF Nexus commonly involves several parties with different backgrounds and expertise to decide sustainable management plan. This paper introduces a computer simulation model to calculate the supply and consumption, availability, and reliability of water, energy, and food resources on a nationwide scale considering the interconnections of resources. Developed based on a system dynamics algorithm, the Water-Energy-Food Nexus Simulation Model (WEFSiM) simulated the nationwide resources nexus implementing the changes of energy policy in South Korea and capital investment planning of urban water systems in Indonesia. Successfully calculating the reliability index of resources and evaluating the feedback analysis in both case studies, WEFSiM can investigate resource security under plausible future conditions, and stakeholders possibly could utilize it as a decision support tool.
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