In the final thesis, we analyzed the performance of a proton exchange membrane electrolyzer (PEMEC) and its integration into a sustainable system. Our experimental work included measuring the polarization curve of the electrolyzer with a varying number of photovoltaic panels as the power source, with batteries used as a reference. The obtained polarization curves did not fully align with expectations and theory, but they did show that electrolysis occurs at a voltage of 1.48V and that a higher power source leads to greater power output from the electrolyzer. We also defined the daily profile of electricity production on the PEM fuel cell, which dictates hydrogen consumption or its production on the PEMEC. The results indicated that to meet the hydrogen demand, more than four panels per electrolyzer would be needed. They also showed that significantly more hydrogen (44%) would be produced if two panels were connected to two PEMECs, compared to connecting four panels to one PEMEC.
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