A review of water electrolysis for green hydrogen generation considering PV/wind/hybrid/hydropower/geothermal/tidal and wave/biogas energy systems, economic analysis, and its application

Hydrogen provides the greatest performance in conditions of capacity and duration when related to other energy storage techniques. Renewable energy sources including solar, geothermal, wind, wave and tidal energy, and hydropower, are used to create green hydrogen. However, biogas is converted into renewable hydrogen via chemical procedures. A comparison of several water Electrolyzer types is provided by this research. All kinds of Electrolyzers have an impact on how well a green hydrogen production system works were discussed. This re- view gives a broad review of environmentally friendly hydrogen generation techniques based on renewable energy sources. These sources incorporate solar energy, hydropower, wind energy, tidal and wave energy, biogas systems, geothermal energy, and hybrid systems of these sources. The method used to obtain the hydrogen and its effects on the environment is the primary distinction between green hydrogen and other colors. Climate, control, management systems, and tracking systems. The innovations and difficulties that green hydrogen systems encounter are highlighted. In the final section, the costs associated with manufacturing hydrogen are explained through an economic study of the understudied production systems LCOE and LCOH. Furthermore, the advantages and disadvantages of all electrolyzers are discussed.