Hydrogen makes up 90% of the universe. On Earth, it is mainly found in compounds, such as water or hydrocarbons (petroleum, natural gas, etc).
It is estimated that hydrogen will be the energy carrier of the future, where it will be used in stationary or transport applications. The advantage of hydrogen is that when it is “burned”, it does not pollute the atmosphere, as it produces only electricity, heat and water.
In the future, the largest percentage of hydrogen will be produced by the electrolysis of water, a process by which water is broken down using an electric current into hydrogen and oxygen. Therefore, since it will be produced from water and water will be given off when it is used, hydrogen is considered practically inexhaustible.