Open-Source Modelica Models for the Optimal Design of Urban and Community Scale Multi-Energy Systems
Davari, Malihe
Davari, Malihe
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Abstract
Integrating local renewable energy with stable service is critical for a sustainable future. Energy hubs (EHs) provide flexible resource-sharing opportunities for building groups by converting, storing, and releasing multiple energy types. However, highly coupled state-of-the-art EHs require nonlinear and dynamic models to accurately account for electrical and thermofluid dynamics. This paper introduces the open-source EnergyHub package in Modelica for designing renewable EHs that serve space heating/cooling, domestic hot water, and electrical demands for buildings. The developed models are first presented and then illustrated in a case study with a grid-tied multi-energy district in France, where we evaluate key performance metrics (i.e., self-sufficiency ratio) considering both electrical and thermofluid energies. Results highlight the critical role of on-site resources and reveal a Pareto optimum for self-sufficiency and life cycle cost. By providing high-level templatized models for emerging EH applications, this work improves accessibility and next-generation EH design.
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Date
1/1/2026
Student Status
Graduate Student
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Poster
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Program/Major
Civil and Environmental Engineering
College/School
College of Engineering and Mathematical Sciences
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Engineering