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This technique uses electric current, generated via solar PV or wind energy to split water into its constituent elements (hydrogen and oxygen). Utilization of solar PV for hydrogen production is the costliest method using current technologies. However, decreasing cost of solar PV due to advances in technology will decrease the cost of this process in future (Karlsson and Oparaocha 2009). Exploiting wind energy for electricity production needed for electrolysis is also a sustainable method; however, wind turbine and electrolyser cost is again a matter of concern. This is again a costly method compared with methods which are fossil fuels based.