The share of volatile renewable energy sources within our existing power system is on a steady incline, and this trajectory is expected to persist well into the coming decades. The coupling of water electrolysis with renewable electricity emerges as a highly promising method for producing green hydrogen. This approach not only amplifies the grid's flexibility but also extends the reach of renewable energy transmission across vast distances, thereby fortifying the large-scale expansion of renewable energy generation.

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Water electrolysis encompasses two primary forms:

• Aqueous Electrolysis: In this method, water is combined with an electrolyte, typically an acid or an alkaline substance

• Solid Oxide Electrolysis: These cells function at elevated temperatures and employ a solid oxide electrolyte material, such as zirconia, rather than a liquid electrolyte.

The overarching reaction in water electrolysis can be summarized as 2H2O(l) → 2H2(g) + O2(g). Presently, our endeavors revolve around the development of high-performance and cost-effective water electrolyzers, poised to spearhead the generation of green hydrogen.