Teaching laboratory exercises for analyzing the performance of a proton exchange membrane electrolyzer in hydrogen generation systems
C. Capellán-Villacián, M. Mendoza-Villena, E. García-Garrido, A. Falces, P. Zorzano-Santamaría, L.A. Fernández-Jiménez Department of Electrical Engineering, E.T.S.I.I., La Rioja University, Logroño (Spain) 2026-06-27

Abstract

The progressive integration of renewable energysources into the power system introduces significant challenges due to the inherent variability of their generation. Energy storage systems represent an effective solution to mitigate these challenges. Among small-scale storage technologies, battery-based systems and hydrogen fuel cell systems are the most widely adopted. Consequently, future engineers responsible for planning and operating power systems must be adequately trained in the principles, operation, and integration of these energy storage technologies. This paper presents an educational, hands-on kit developed by the research team, along with a set of laboratory activities designed to be carried out using the kit, with the objective of helping future engineers understand the fundamental principles of converting electrical energy into storable “green” hydrogen through a proton exchange membrane (PEM) electrolyzer. The kit enables testing of the electrolyzer under different operating conditions, assessment of its dependence on external factors, and evaluation of its performance. Its implementation in an elective course within the electrical engineering program during the final two years of study has achieved highly satisfactory results, enabling students to effectively apply the acquired knowledge in their future professional practice.

Key words: Energy storage systems, green hydrogen, engineering curricula, renewable energy integration.

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