Hydrogen is the most abundant element in the universe. It makes up 75% of the mass of the universe and 90% of its molecules. Effectively harnessing it as a source of power would provide humanity with a virtually unlimited source of energy. Hydrogen is the lightest and most ubiquitous element found in the universe. When harnessed as a form of energy, it becomes "the forever fuel." It never runs out, and, because it does not contain a single carbon atom, it emits no carbon dioxide. There is a large infrastructure of hydrogen today to meet the needs of industrial applications including metals processing, refining, chemical production, fats and oils production, and electronics processing. About 45 billion kilograms (50 million tons) is produced every year, enough hydrogen to fuel 250 million fuel cell cars. Hydrogen can be used today in fuel cells for backup power applications, reciprocating internal combustion engines for vehicles, as well as turbines and micro turbines. Exploiting the unique properties of hydrogen, conventional devices fuelled on hydrogen can be designed to be zero or near-zero-emission technologies. The near-term commercialisation of hydrogen internal combustion engine vehicles and hydrogen/ natural gas or hydrogen/electric hybrids allow a platform for hydrogen energy technology commercialisation. This can facilitate public acceptance of hydrogen and provide the beginning of a hydrogen infrastructure. As fuel cell technology development continues, it can find its place faster with a hydrogen infrastructure in place. | 
