Friday Dec 09, 2022

Considering Renewable Hydrogen Production – AZoM


If hydrogen is created using renewable resources, it has the potential to become a sustainable energy provider. This will result in hydrogen generation with a very low carbon impact.

Image Credit: Tomasz Makowski/

The energy content of hydrogen per weight is 2.5 times that of any other common fuel. Hydrogen is often regarded as the energy carrier of the future.

Hydrogen is recognized as an exciting fuel because it may be utilized as an energy transporter, a reservoir material, in fuel cell technology, as a fuel, and it provides carbon-free alternatives. The worldwide distribution of energy usage is currently predicted to be 80 percent fossil fuels, 14 percent sustainable sources, and 6 percent nuclear power.

Renewable technologies, such as sunlight, air, and hydroelectric, contribute just 3% to the global energy system. The usage of renewable power is becoming increasingly important as the amount of energy required rises in tandem with the growth of emerging countries’ GDP.

Advantages of Hydrogen Power

Hydrogen is a valuable type of power for a myriad of purposes, the most important of which is its abundant availability. Hydrogen can be created on-site where it will be needed, or it can be synthesized remotely and delivered. Hydrocarbon, gasoline, biofuel, coke, or water may all be used to create hydrogen gas.

Pollution levels, technological obstacles, and energy needs vary based on the sources employed. In the case of the utilization of hydrogen as a fuel source, the remnants after the process of energy production are non-hazardous. Their composition is such that they pose no harm to human health or the surrounding environment.

This has led to the use of hydrogen in various industries such as water sources for the aviation and aerospace sector worldwide. It is a non-toxic chemical that is uncommon for use as a fuel source. This signifies that it is beneficial to the environment and does not hurt or destroy human health.

When hydrogen and oxygen mix in a battery pack, power is created, which may be utilized to propel cars or to operate an electric generator as a heating element. The chemical reaction of hydrogen with the gaseous oxgen results in the discharge of heat with the production of water. Both of these products are harmless and this is the reason hydrogen is preferred as a sustainable energy source.

Limitations of Hydrogen Power

Amidst being the most abundant mineral, hydrogen does not occur by itself and must be collected from water by electrolysis or separated from carbon-based fossil fuels. Both of these procedures need a large quantity of energy. This power can be greater than that obtained from hydrogen alone, and it is also more costly. Furthermore, in the lack of CCS, this extraction often necessitates the use of fossil energy, undermining hydrogen’s ecological credentials.

Furthermore, rare precious metals like platinum and iridium are commonly used as electrocatalysts in fuel cell technology as well as some forms of water electrolyzing substance, which implies that the original price of fuel cells can be substantial. Some people have been discouraged from investing in hydrogen fuel cell technology because of the significant expense.

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