A New Model for Resilient-Sustainable Energy Project Portfolio with Bi-Level Budgeting and Project Manager Skill Utilization under Neutrosophic Fuzzy Uncertainty: A Case Study

One of the most important areas of infrastructure projects that can contribute to the goals of sustainable development is the energy sector. Forming the right set of energy projects can lead to developing a sustainable environment. Another important aspect is the resilience of energy projects. This paper introduces a novel approach that simultaneously considers resilience and sustainability in forming energy project portfolios. In the first part, the relative importance of each project is computed under a triangular neutrosophic (TN) environment. This approach keeps the vagueness of data while evaluating projects versus resiliency and sustainability criteria. In the second part, an interval mathematical model is presented to maximize the total value of the selected portfolio while addressing bi-level budgeting and skill utilization. In this study, uncertainty is expressed in a hybrid way which enhances the flexibility of computations in addition to providing experts with more freedom in expressing their opinions. To present the application of this method, data from an existing case study has been used, and the process has been implemented step by step. This application demonstrates the importance of addressing resilience and sustainability in energy projects. Moreover, it shows the benefits of applying a hybrid solution approach in presenting the vagueness of energy projects in addition to assigning the budget in a bi-level process.