What is hydrogen used for

Hydrogen, the simplest and most abundant element in the universe, has been used for a wide variety of applications in many industries, from energy production to transportation and beyond. Its unique properties and versatility make it a key player in addressing various global challenges including energy sustainability, environmental concerns and technological advancements.

What is hydrogen used for

Energy production

Hydrogen has immense potential as a clean and renewable energy source. It can be produced by a variety of methods, including electrolysis of water, steam reforming of natural gas, and biomass gasification. When used in fuel cells, hydrogen undergoes electrochemical reactions with oxygen, producing electricity, water, and heat as byproducts. This process, known as hydrogen fuel cell technology, provides a highly efficient and emissions-free alternative to traditional combustion engines.


Hydrogen fuel cells are gaining popularity as a viable alternative to traditional internal combustion engines in the transportation sector. Hydrogen-powered vehicles, such as cars, buses, trucks, and trains, provide a zero-emission solution to reduce greenhouse gas emissions and air pollution. These vehicles emit only water vapor and heat, making them environmentally friendly and contributing to efforts to combat climate change.

Industrial applications

Hydrogen serves as an important feedstock in various industrial processes, particularly in the production of ammonia for fertilizer manufacturing. It is also used in petroleum refining, where it helps remove sulfur impurities from crude oil and produce cleaner-burning fuel. In addition, hydrogen plays an important role in the production of methanol, which serves as a precursor to many chemicals and plastics.

Energy storage

Hydrogen offers a promising solution for energy storage and grid stabilization, especially in combination with renewable energy sources such as wind and solar power. Excess electricity generated from renewable sources can be used to produce hydrogen through electrolysis, which can then be stored and converted into electricity at a later time as needed. This approach helps overcome the problem of intermittency of renewable energy generation and increases the reliability and stability of the grid.

Aerospace and space exploration

Hydrogen has long been used as a propellant in rocket engines due to its high energy density and efficient combustion properties. Liquid hydrogen is commonly used as rocket fuel for space exploration missions, to power spacecraft, and to enable human exploration of distant planets and celestial bodies.

Environmental prevention

Hydrogen has the potential to reduce environmental pollution and in remediation efforts. It can be employed in soil and groundwater remediation projects to remediate contaminated sites and remove pollutants such as heavy metals, solvents and petroleum hydrocarbons. Hydrogen-enhanced bioremediation technology takes advantage of its reducing properties to stimulate microbial activity and facilitate the degradation of toxic substances in the environment.

Hydrogen is a versatile and indispensable element that has diverse applications in various fields including energy production, transportation, industry, aerospace, and environmental remediation. Its ability to serve as a clean, renewable and sustainable energy carrier makes it a key player in the transition towards a low-carbon economy and a more environmentally conscious society. As research and technological advances continue to expand our understanding of hydrogen's capabilities, its role in shaping the future of energy and innovation will undoubtedly grow in importance.