Hybrid Renewable Microgrid Design for a Public University Building: Technical, Economic, Environmental and Educational Assessment
M. González-Pérez(1), F. J. Asensio(1), A. Ordono(1), J. Rodriguez-Gongora(1), G. Saldaña(2), O. Oñederra(2) 1. Department of Electrical Engineering, G.I.E. Eibar, University of the Basque Country (EHU), Eibar (Spain) 2.Department of Electrical Engineering, B.I.E., University of the Basque Country (EHU), Bilbao (Spain) 2026-06-27

Abstract

This paper presents the design and assessment of a hybrid electrical and thermal microgrid for a public university building. The project aims to reduce the building’s energy expenditure while simultaneously creating a full-scale learning infrastructure for students enrolled in the Renewable Energy Engineering degree.

Several microgrid configurations are evaluated, combining photovoltaic generation (PV), micro‑wind power (WT), gas microturbine cogeneration (GM-CHP), battery storage (BES), and hydrogen storage technologies (HES). The methodology integrates technical modelling, economic analysis, and sustainability indicators to compare alternative hybridisation strategies. Results highlight the potential for significant reductions in energy costs and carbon emissions through optimised combinations of distributed generation and storage. In addition, the proposed microgrid provides substantial educational value by enabling access to real operational data, hands‑on laboratory activities, and practical training in renewable energy and microgrid systems.

Key words: Microgrid, Renewable Energy, Hybrid Systems, Energy Storage, Cogeneration.

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