Solar hydrogen generation demonstrator based on bifacial photovoltaics

The photovoltaic module has actually been directly paired to a water electrolysis system based upon a proton exchange membrane (PEM). The main outcomes on the system performance at 1000 W/m2 of incident solar radiation are the following:

1. Solar to hydrogen (STH) conversion efficiency of 13.5 %
2. H2 production rate of 4.2 grams/ m2/ hr
3. Enhanced bifaciality at 30 % albedo allowing a 16% gain in conversion efficiency compared to mono-facial photovoltaics.


This video reveals among the direct solar to hydrogen generation approaches that were developed in the PECSYS Horizon 2020 Project worked together by Helmholtz Zentrum Berlin. To find out more on PECSYS, please see:

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