Green hydrogen production

Green hydrogen (H₂) is a versatile energy carrier that can be applied to decarbonize a wide range of sectors. It can be used directly or in the form of its derivatives like e-methanol, e-ammonia, or e-fuels to replace fossil fuels, coal or gas.
Only around 40% of global carbon dioxide (CO₂) emissions originate from power generation which can be decarbonized via electrification. The other 60% of CO₂ emissions originate from industry, mobility, buildings and others. These can be decarbonized via sector coupling, using green hydrogen and its derivatives to make renewable energy available to those sectors. This is why the production of sustainable hydrogen is such a crucial issue.

Generating green hydrogen efficiently from water and renewable energy requires high-end technology and innovative solutions — like the Silyzer product family from Siemens Energy. Using Proton Exchange Membrane (PEM) electrolysis, the Silyzer is ideally suited for harnessing volatile energy generated from wind and solar. Combining high efficiency and high power density, our PEM electrolyzers ensure gas products of superior quality. It is easy to operate and requires low maintenance. Using a modular design strategy that splits the electrolysis system into skids, we are able to optimize costs, reduce installation costs, and make the electrolysis system transportable.

Carbon emission targets in the European Union and other industrialized countries will require massive scaling-up and acceleration of renewable hydrogen production and imports – already 20 million tons will be needed in Europe by 2030 to fast forward the energy transition and decarbonization.

That’s why we have joined forces with Air Liquide to create a joint venture dedicated to the series production of industrial-scale renewable hydrogen electrolyzers. In 2023, we started production of electrolysis stacks at our multi-gigawatt electrolyzer facility in Berlin and will ramp up to an annual production capacity of three gigawatts by 2025. The factory will supply stacks to Siemens Energy and Air Liquide for our broad range of customers and serve the rapidly growing market. 

The new gigawatt electrolyzer plant in Berlin is highly automated with robotics and digitalization.

Siemens Energy can offer comprehensive services for your electrolyzer plant and energy assets along the entire hydrogen value chain. Our service agreements range from basic maintenance to premium service with state-of-the-art data analysis and can be customized to your needs.
Our combined package of maintenance, support and digital services can ensure reliable and economical operation. You can reduce your risks with our performance guarantees or enjoy total peace of mind with our Operations and Maintenance service program. Together, we will push your clean hydrogen production to the next level.

With our extensive knowledge of industrial, mobility, and energy sectors, we’re able to provide dependable solutions for our customers in every aspect of green hydrogen production. 

You will benefit from Siemens Energy’s decades of experience, global footprint, infrastructure, strong partnerships and manpower available, covering the full energy value chain from renewable power via transmission to hydrogen and Power-to-X production. Moreover, we can help you certify the source of green energy with Clean Energy Certificates.  

Are you ready for the green hydrogen economy? We are and we look forward to being your partner for sustainable hydrogen generation.

Download Siemens Energy's technical papers and benefit from our expertise.