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24h / 365days

We offer support for our customers

Mon - Fri 8:00am - 5:00pm (GMT +1)

Get in touch

Cybersteel Inc.
376-293 City Road, Suite 600
San Francisco, CA 94102

Have any questions?
+44 1234 567 890

Drop us a line

About us

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Phone +49 (0) 53 21 6 87 - 0

Green hydrogen

Highly efficient PEM-based electrolyzers in modular container design from 1 - 100 MW.


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H2 solutions

The power-to-gas value chain – production, storage solutions & refueling technology.


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Planning, engineering, plant technology and infrastructure for hydrogen systems – ready for operation.


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Global Lifetime Services for maintaining,
servicing, and operating your installations.


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news: Hannover Messe 2023 - We'll be there!

The next Hannover Messe will take place from 17-21 April. Will you visit us?

news: Strandmöllen AB has placed a purchase order for a 3MW electrolyser from FEST GmbH / Green-H2-Systems

Strandmöllen from Denmark is erecting a production facility to provide green hydrogen.

news: Delivery of 2 x 2,5 MW PEM electrolysis plants

Hydrogen power for local rail transport

news: International cooperation

Auf dem Weg in Welt: Russland, Indien, Singapur, Südkorea

Our mission statement:

Experience meets Future.
With our experience, we lay the foundation for the efficient use of hydrogen from green energy.

We are not just following a trend – we are shaping it.

With maximum efficiency, minimum maintenance, reliability and digital energy management, we are setting the course for the future: For the carbon-neutral industry of tomorrow.

PEM Electrolyzers

H2 Filling Stations

Storage Solutions

Power & Energy

Engineering &


Containerized: PEM electrolysis

Modular H2 plants with maximum efficiency – state of the art

Over 50 years of experience

We are part of the Schmidt-Kranz Group and a company of the FEST Group.

Hydrogen technology is already a reality: As part of the FEST Group, Green H2 Systems draws on the international know-how of a medium-sized company with a long tradition in automation technology.

With 300 employees and locations in Germany, Austria, Russia, China and India, as well as by collaborating with research institutions and innovative partners, we are developing a green future for all.

Green H2 Systems
Harzburger Strasse 14
38642 Goslar

T +49 (0) 53 21 6 87 - 0

  • Contracting & Engineering
  • Energy Systems & Management
  • PEM Electrolyzers from 1 MW – 100 MW
  • Lifetime Services & Consulting
  • Technological Development
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