Introduction
Hydrogen is the most abundant and simplest element in the universe. On Earth, however, it is rarely found as a gas; therefore, it must be separated from other elements.
White hydrogen is a naturally occurring form that is occasionally found underground, but there are few viable extraction methods; therefore, experts seek to generate it artificially.
Hydrogen can be derived from a variety of resources, such as fossil fuels, nuclear energy, biomass, and renewable energy sources. This can be accomplished via a variety of methods. The resulting gas can be burned or utilised as an energy carrier. And, if generated from renewable sources, it can be a clean alternative to fossil fuel combustion.
Towards Decarbonisation
The world is in a unique and necessary phase of energy transition, where emerging low-carbon technologies are replacing existing fossil fuel resources and are shaping a new energy paradigm. Solar and wind power, lithium-ion batteries, and alternative fuels have paved the way for decarbonization in a variety of areas of the economy. However, certain sectors, such as industry and heavy transport, are difficult to decarbonize with the available low- or zero-carbon technologies. Hydrogen promises to address those challenges and contribute to the decarbonization of these hard-to-abate sectors.
Green Hydrogen
In the kaleidoscope of hydrogen hues, green hydrogen is produced without emitting any greenhouse gases. Electrolyzing water with clean electricity from surplus renewable energy sources, such as solar or wind, produces green hydrogen. Electrolyzers utilise an electrochemical reaction to split water into hydrogen and oxygen while emitting zero carbon dioxide. Due to the high cost of production, green hydrogen comprises only a small fraction of the total hydrogen supply.
This energy source has advantages and disadvantages that must be considered. Let's examine some of its most significant positive aspects:
Sustainable: Green hydrogen does not produce or emit any polluting byproducts during combustion or production.
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