Hydrogen - Wikipedia
Hydrogen is a chemical element; it has the symbol H and atomic number 1. It is the lightest and most abundant chemical element in the universe, constituting about 75% of all normal matter.
Hydrogen | Properties, Uses, & Facts | Britannica
The earliest known chemical property of hydrogen is that it burns with oxygen to form water; indeed, the name hydrogen is derived from Greek words meaning ‘maker of water.’
Hydrogen Energy Explained: Everything You Should Know
This article, brought to you by the Renewable Energy Institute, an accredited provider of renewable energy education and training, provides an accessible overview of hydrogen; how it works, its advantages and challenges and the technologies shaping its future.
Hydrogen explained - U.S. Energy Information Administration (EIA)
Hydrogen can be produced, or separated, from a variety of sources—including water, fossil fuels, or biomass—and used as a source of energy or fuel. Hydrogen has the highest energy content of any common fuel by weight (about three times more than gasoline).
Hydrogen - Department of Energy
Hydrogen has been described as the “Swiss army knife” of energy because it plays a key role in several sectors where there are limited or no viable alternatives (including in applications where electrification is particularly challenging or costly).
Hydrogen Factsheet - Center for Sustainable Systems
Hydrogen is a feedstock and energy carrier used in multiple sectors. Global hydrogen demand reached 97 Mt in 2023, a 2.5% increase from 2022, with 10 Mt in the U.S. 1,2 Hydrogen is the most abundant element in the universe, but is present in limited amounts in elemental form on Earth.
What is hydrogen? - National Grid Group
Hydrogen is a clean alternative to methane, also known as natural gas. It's the most abundant chemical element, estimated to contribute 75% of the mass of the universe. Here on earth, vast numbers of hydrogen atoms are contained in water, plants, animals and, of course, humans.