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Scale the production of green hydrogen: Bosch electrolysis technology and services make it possible

Green hydrogen generated by electrolysis — this is one of the key elements of a sustainable and climate-neutral energy economy. Because hydrogen is a true all-rounder, being an energy carrier, a process gas, and an energy storage medium at the same time. Generating hydrogen with power from renewable energy sources, such as solar, water, and wind power, makes it climate-neutral and therefore green. Our Bosch electrolysis stack provides the centerpiece for your hydrogen production. The stack is manufactured according to our standards of automated and industrialized series production — globally scalable at any time, and, of course, in the usual high Bosch quality. We offer you a future-proof energy system that is independent of fossil fuels and supplied from renewable resources.

Bosch PEM electrolysis stack in container

This is how we turn water into hydrogen

In PEM electrolysis, a proton exchange membrane (PEM) serves as an electrically conductive medium between the anode and the cathode. When current flows, the electrons migrate to the anode and the electrolysis water is split into its components, hydrogen and oxygen. The benefits: high power density, high H2 output pressure, maximum flexibility, and minimum space requirements, combined with a high level of operational reliability and safety.

The Bosch PEM electrolysis stack is a space-saving powerhouse consisting of several dozens of cells, weighing about 2,850 kg and measuring 80x97x150 cm in size. Our electrolysis stack is capable of producing up to 23 kilograms of hydrogen per hour. This is equivalent to a power input of up to 1.25 megawatts – eminently suited for industrial-scale applications. Hydrogen is produced at an output pressure of more than 30 bar. The high pressure eliminates the need for expensive auxiliary units in many applications.

What is the structure of the Bosch PEM electrolysis stack?
The Bosch electrolysis stack delivers 23 kg of H₂ per hour at an output pressure of more than 30 bar.
This is equivalent to a power input of up to 1.25 megawatts.

Wide range of possible applications for our electrolysis components

From decentralized plants to cover the on-site demand of production facilities or of hydrogen refueling stations to large-scale industrial solutions

Industry supplied with hydrogen

Large electrolysis plants

Embedded in large plants, our Bosch electrolysis stack is used in the centralized, high-volume production of hydrogen with a capacity of several 100 megawatts. The electrolysis units can be integrated into buildings or set up as a stand-alone production plant. Large electrolysis units are relevant for applications with high consumption volumes, for example in industrial applications, in the production of ammonia and methanol, in the chemical industry, or in regions where solar and wind power or hydropower can be used efficiently and hydrogen as well as its derivates are produced and exported.

Truck at hydrogen refueling station

Local and decentralized hydrogen production

In scalable decentralized plants with a capacity of one to ten megawatts, our PEM electrolysis stack can be perfectly integrated into containerized solutions. They are installed directly at the hydrogen consumption site. This saves transport costs, making it an ideal solution for production plants seeking to cover their demand for hydrogen to be used as a process gas or for energy supply. And hydrogen refueling stations can also produce H2 on site, supplementing or replacing hydrogen delivery. In wind or solar parks, the energy generated can be directly converted into hydrogen. It can be stored and transported to the consumption site via mobile tanks, tankers, or pipelines.

Your reliable technology partner for scalable high-volume production

Anyone who wants to scale successfully in the hydrogen market will find the right and trusted partner in us. We develop novel technologies, such as the PEM electrolysis stack, and transfer the innovation to industrially scalable, high-volume production based on our many years of experience. This is part of our Bosch DNA — high quality and best value for money. Combined with our know-how in the fields of digitalization and networking, we support you by providing accompanying services, from installation, commissioning, and remote monitoring of products to recycling of components at the end of their lifecycle. Alongside our experts, a key element of these services is a digital twin. The virtual copy of the respective electrolysis unit permits an accurate analysis of the system status, helping to keep the electrolysis capacity at the best possible level and thereby optimize operating costs.

Bosch PEM electrolysis stack

Brochure on the Bosch PEM electrolysis stack

Everything you need to know at a glance

The Bosch electrolysis stack is currently in the pilot phase. All technical specifications given are development objectives.

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