Hydrogen is the chemical element with atomic number 1. It is represented by the symbol H. With an average atomic weight of 1.00794 u (1.007825 u for Hydrogen-1), hydrogen is the lightest and most abundant chemical element, constituting roughly 75% of the Universe’s chemical elemental mass. Stars in the main sequence are mainly composed of hydrogen in its plasma state. Naturally occurring elemental hydrogen is relatively rare on Earth.
Identifying and building a sustainable energy system are perhaps two of the most critical issues that today’s society must address. Replacing our current energy carrier mix with a sustainable chemical element component is vital for our future.
A renewable energy source, for instance wind, can be used to produce hydrogen by water electrolysis for use in fuel cells. The excess of hydrogen produced by these sources at a low electrical energy demand point, can be stored as a fuel enabling a high energy utilization.