Wiki - All about hydrogen

Updated on 14 May 2024

Producing hydrogen

Producing hydrogen is an essential first step in the realization of any activity involving hydrogen as an energy carrier. Thereby, it makes sense to distinguish different characteristics of the process that is used for this.

Greenhouse gas emissions: processes used for the production of hydrogen can be more or less greenhouse gas intensive. Steam reforming, the most common production method used today, emits 6.6 to 9.3 tonnes of carbon dioxide per ton of hydrogen. The production of hydrogen with water electrolysis (so-called green hydrogen), can be 100% emission-free.

Use of non-renewable resources: a second important feature characterizing the production processes is whether non-renewable resources are used for it, in particular fossil fuels. While so-called blue hydrogen created with steam reforming does not emit carbon dioxide, it is still produced with non-renewable natural gas.

Location in the energy infrastructure: the fact that hydrogen is a light gas and cannot be easily transported implies that the place of production plays a role. While it is conceivable that hydrogen could be produced at large scale in deserts, there are also advantages resulting from the production of hydrogen at decentral locations in the power grid where the surplus of electricity becomes increasingly large.

GRZ Technologies has erected hydrogen production plants based on different types of electrolysis technology for its clients from lab to MW-scale. Thereby, PEM, alkaline, and AEM electrolysis technologies have been installed.

Producing hydrogen in sufficient amounts is a key prerequisite for a successful energy transition. Especially in the first phase, all environmentally friendly production methods should be embraced to ensure sufficient availability of hydrogen for various applications.

Once hydrogen has been produced, it can be used in downstream processes. GRZ Technologies’ products are often the first component placed downstream of the hydrogen production process and help to generate economic value from the resource.

Image of an electrolyzer producing hydrogen that is then used for the production of synthetic methane.
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