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Electrochemical methods to produce hydrogen require electrical energy to facilitate the reaction. Green hydrogen can be produced electrochemically if the electrical energy is obtained from processes that benefit the environment, such as wind solar tidal energy, etc. Several electrochemical methods can be used to generate hydrogen, of which water electrolysis is the best known. Other electrochemical processes also have the potential to produce hydrogen, however, an important aspect of the production of green hydrogen from electrical energy is the clean technology of using electrical energy to produce hydrogen from low-value feedstocks.