Hydrogen, used across various industrial applications such as chemicals, electronics, glass, etc., is produced both as a principal product and a by-product. More than 90% of total hydrogen demand across the globe depends upon fossil fuel based resources. Only a small fraction of this demand is met by hydrogen produced by water electrolysis. Different kind of electrolyzers such as alkaline electrolyzer, polymer electrolyte membrane (PEM) electrolyzer, solid oxide electrolyzer etc. are available in the market, which differ in processing methods and operational efficiency. Hydrogen electrolyzer disintegrates water into oxygen and hydrogen gases by passage of electric current. In order to meet optimum volume demand for different applications, these electrolyzers are available in varying capacities with hydrogen generation ranging from small scale production (100 liter/h) to large scale production (1000 liter/h).